3Com 3C15500 User Guide
3Com 3C15500 - Network Director - PC Manual
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- 3Com 3C15500 | User Guide - Page 1
3Com® Network Director User Guide 3C15500 http://www.3com.com/ Part No. DUA1550-0AAA01 Published May 2004 - 3Com 3C15500 | User Guide - Page 2
there is any software on removable media Guide. Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries. 3Com and the 3Com logo are registered trademarks of 3Com Corporation. XRN is a trademark of 3Com Corporation - 3Com 3C15500 | User Guide - Page 3
and that both that copyright notice and this permission notice appear in supporting documentation, and that the name of CMU not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. Graphics Server 4 for Microsoft Windows Copyright - 3Com 3C15500 | User Guide - Page 4
- 3Com 3C15500 | User Guide - Page 5
Conventions 32 Feedback about this User Guide 33 Related Documentation 33 1 GETTING STARTED Introduction 35 What is 3Com Network Director 35 On the CD 35 Installation 36 Activation 36 Getting Started 37 Creating a New Network Map 38 Discovery Type Step 38 Specify Subnets Step 38 Monitor Core Devices - 3Com 3C15500 | User Guide - Page 6
Network Monitoring 42 The Event System 43 Reports on Historical Data 43 RMON Support 43 VLAN Support 43 Bulk Configuration 44 number for 3Com Network Director? 53 Where can I find the serial number for 3Com Network Director? 53 Where can I find the license key for 3Com Network Director? 53 What - 3Com 3C15500 | User Guide - Page 7
to the 3Com support web site? 55 I want to install my upgrade from 3Com Network Supervisor Advanced Package v2.0 to 3Com Network Director on a different workstation. 55 I want to upgrade my copy of 3Com Network Supervisor Advanced Package v2.0 to 3Com Network Director v1.0 56 Troubleshooting 58 My - 3Com 3C15500 | User Guide - Page 8
Option 87 Help > Launch User Guide 87 Help > About 3Com® Director Menu Option 88 Examples 88 Finding the Product Version 88 Finding the Serial Number, License Number and Activation Key 89 Key Considerations 90 Scheduled Tasks 90 4 DISCOVERING THE NETWORK - 3Com 3C15500 | User Guide - Page 9
Pane 120 NBX Call Processors Pane 120 Discovery Options Pane 122 Scheduled Discovery Pane 124 Summary Pane 126 The Network Discovery Progress Dialog Box 128 Network Discovery Summary dialog box 130 The Discovery Report 131 Discovery 132 Topology 132 The Misconfigurations and Optimizations Report 132 - 3Com 3C15500 | User Guide - Page 10
and References 140 Why the discovered map may not exactly reflect the network 140 Some devices haven't appeared 140 Some devices are the wrong type 141 There are clouds in my map 141 Support for 3Com devices 142 Support for third party devices 142 Key Considerations 143 Discovering over slow - 3Com 3C15500 | User Guide - Page 11
date 205 Dynamic Network Login Support 205 Saving and Opening Maps 206 Exporting Maps to Microsoft" Visio" 208 209 Printing the Map 210 Background Images 210 Examples 212 Selecting all of the SuperStack 3 Switch 4400 Devices in the Network 212 Viewing all of the Physical Connections for a Router 215 - 3Com 3C15500 | User Guide - Page 12
Map Items from Different Submaps 220 Adding a New Device on Your Network Into the Map 221 Useful Information and References 225 Graphical Support for Specific Device Types 225 NBX Network Telephony Solution 225 3Com Switch 4007 225 3Com Wireless Access Points 225 Files Associated with Saved Maps 226 - 3Com 3C15500 | User Guide - Page 13
Address for a Manually Added Device 255 Setting the Port Numbers for a Manually Added Link 264 Key Considerations 269 Troubleshooting 269 7 MONITORING THE NETWORK Overview 273 Key Concepts Retrieval 277 Service Polling 278 SNMP Trap Receipt 278 Monitor-able Items 279 Monitoring Non-3Com Devices 279 - 3Com 3C15500 | User Guide - Page 14
Generation from Monitors 304 Registering 3Com Network Director as an SNMP Trap Destination Network 308 Configuring Monitoring for a Remote Office 309 Extending the Length of Maintained Monitor History 313 Key Considerations 314 Monitoring and Logged Data 314 Text Displayed in Graphs 314 Problems - 3Com 3C15500 | User Guide - Page 15
3Com Network Director Internal Events 321 Event Severities 321 Information Severity 321 331 Working With Events 332 Navigating to Event Sources in the Map 332 Commenting on Events 333 Manually Resolving Events 334 Deleting Events 335 Refreshing the Events List 336 Exporting the Events List to a - 3Com 3C15500 | User Guide - Page 16
Generated in the Last Week 371 Undeleting an Event 373 Obtaining Events for Received SNMP Traps 376 Getting Events As Soon As Your Network Has A Problem 377 Receiving Notification When A Server Farm Is Unreachable 378 Key Considerations 382 No Events in the Events List 382 Events List Update Was - 3Com 3C15500 | User Guide - Page 17
a switch/hub and an end station/cloud 395 Database file format 396 Database management 398 Key Considerations 399 Troubleshooting 399 Mapping file not updating 399 Changing the logging data directory 399 Missing data within RRD database files 400 Empty historical report states 3Com Network Director - 3Com 3C15500 | User Guide - Page 18
Host 405 HostTopN 405 Matrix 406 HC-RMON 406 Components 407 3Com support for RMON 407 The RMONView window 407 The Menu bar 408 data from the RMON Host group 431 Viewing RMON Host data for a selected device 431 3Com Switch 4007 432 Viewing RMON host data for a selected link 433 Host View dialog box - 3Com 3C15500 | User Guide - Page 19
link? 451 Useful Information And References 452 RMON 452 RMON Support on individual 3Com devices 452 RMON Limits on individual devices (for table Name and Description Step 467 Summary Step 467 Examples 468 Assessing Network Expansion Capability 468 Ensuring Stacks are Running the Same Agent Version - 3Com 3C15500 | User Guide - Page 20
Overview 473 Key Concepts 474 Web Management 474 Telnet Management 474 SSH Management 474 Administration Menu 474 3Com Device View 475 3Com Switch Manager 475 3Com Router Manager 475 Network Jack Configuration Manager 475 IP Ping 475 Trace Route 476 Properties Dialog Box 478 General 478 Security - 3Com 3C15500 | User Guide - Page 21
Key Considerations 496 Troubleshooting 496 The Device Warranty dialog box is not displayed after a Network Discovery 496 3Com Network Director lists some devices as unregistered, although you have already registered them on the 3Com website 496 Frequently Asked Questions 497 Why are some registered - 3Com 3C15500 | User Guide - Page 22
switches 3Com NBX systems 568 Useful Information and References 569 Standards, Protocols, and Related Reading 569 Device support 569 Key Considerations 570 Guidelines for creating/editing a VLAN 570 Troubleshooting 570 Incorrect VLAN membership inference 570 VLAN-related network discovery problems - 3Com 3C15500 | User Guide - Page 23
Reference C 576 14 BULK CONFIGURATION Overview 577 Key Concepts 578 Configuration Templates 578 Device and Port Selections 579 Components 579 Configuration Editor Dialog Box 580 Configuration Summary Tree Features 581 Feature Configuration Panels 582 Loading and Saving Configuration Templates 584 - 3Com 3C15500 | User Guide - Page 24
Supported Devices 619 Supported Features by Device Family 619 Key Considerations 621 Potential Hazards when using Bulk Configuration 621 15 PRIORITIZING NETWORK TRAFFIC Overview 623 Key Concepts 624 Classification 624 Marking 625 Queuing 627 Dropping 629 Service Levels 629 Configuring the Network - 3Com 3C15500 | User Guide - Page 25
3Com Network Director Classifier Rules for NBX Phone Traffic 3Com Network Director Service Levels 655 Configuration Levels for Supported 3Com 662 654 659 16 UPGRADING DEVICE SOFTWARE Overview 663 Key Concepts 664 Agent Switch 4400's with a New Agent 674 Detecting and Downgrading a Problem Device 675 - 3Com 3C15500 | User Guide - Page 26
677 Troubleshooting Device Problems Following Agent Update 677 Repeated Timeouts 678 17 USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Overview 681 Key Concepts 681 Multi-Site Networks 681 Local and Remote Sites 681 Issues with Managing a Multi-Site Network 682 3Com Network Director Support for - 3Com 3C15500 | User Guide - Page 27
Types 748 Key Considerations 750 Problems with Discovering Remote Sites 750 Problems with Discovering WAN Routers 751 18 NBX SUPPORT Overview 753 Key Concepts 754 How 3Com Network Director Discovers the Phone Network 754 How 3Com Network Director Represents the Phone Network Icons 754 NBX Call - 3Com 3C15500 | User Guide - Page 28
Voice-related 3Com Network Director Events 765 manually 771 The phone is not managed by the NBX Call Processor anymore 771 The display of end stations in the map has been disabled 771 The wrong username/password was specified for the NBX Call Processor 772 There is a problem with the HTTP service - 3Com 3C15500 | User Guide - Page 29
Why are there a lot of unconnected phones on the map? 774 The phone was removed from the network 774 The phone cannot be reached 775 The network device the phone is connected to has not been discovered 775 Why are some phones on the map showing the user name, while others show - 3Com 3C15500 | User Guide - Page 30
of Devices 802 Useful Information and References 805 Supported 3Com Devices 805 Supported Device Parameters 806 Understanding Backup Files 807 809 20 LIVE UPDATE Overview 811 Key Concepts 812 Connection Type 812 Service Packs 812 Live Update Engine 812 Components 813 Live Update Setup Wizard 813 - 3Com 3C15500 | User Guide - Page 31
the Downloaded 3Com Router Manager Updates on Disk 832 A SUPPORTED DEVICES Bulk Configuration 835 VLAN Configuration 836 Backup, Restore and Setup 837 Restrictions Backing Up and Restoring 3Com Devices 838 Agent Update 841 Restrictions Updating 3Com Agent Software 842 RMON 845 Device View 846 Switch - 3Com 3C15500 | User Guide - Page 32
Your Product to Gain Service Benefits 855 Purchase Value-Added Services 855 Troubleshoot Online 855 Access Software Downloads 856 Contact Us 856 Telephone Technical Support and Repair 856 D SYSTEM REQUIREMENTS Operating System 859 Web Browser 859 Additional Software Required 859 Hardware 860 - 3Com 3C15500 | User Guide - Page 33
F ADDING TRAP DECODES G ADDING MAC ADDRESS VENDOR TRANSLATIONS H INTEGRATING AN SSH CLIENT INDEX 3COM END USER SOFTWARE LICENSE AGREEMENT - 3Com 3C15500 | User Guide - Page 34
- 3Com 3C15500 | User Guide - Page 35
Notes provided with this 3Com® Network Director User Guide contain details that differ from the information in this guide, follow the information in the release notes. Most 3Com user guides are available in Adobe Acrobat Reader Portable Document Format (PDF) or HTML on the 3Com World Wide Web site - 3Com 3C15500 | User Guide - Page 36
see the word "enter" in this guide, you must type something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says "type." If you the text. ■ Identify menu names, menu commands, and software button names. Examples: From the Help menu, select Contents. Click OK. - 3Com 3C15500 | User Guide - Page 37
■ Page 21 Do not use this email address for technical support questions. For information about contacting Technical Support, please refer to Appendix A on page 855. Related Documentation In addition to this guide, 3Com Network Director provides on-line help which can be accessed through the - 3Com 3C15500 | User Guide - Page 38
34 ABOUT THIS GUIDE - 3Com 3C15500 | User Guide - Page 39
for 3Com Switches and Routers On the CD The CD contains the following resources: ■ A readme file for 3Com Network Director ■ The 3Com Network Director installation program ■ This 3Com Network Director user guide in PDF format ■ Adobe Acrobat Reader ■ 3Com Switch Manager ■ 3Com Router Manager - 3Com 3C15500 | User Guide - Page 40
the CD and access the files. Installation 3Com recommends that you install the Router Manager and Switch Manager applications before you install 3Com Network Director. These applications must be installed first so that the 3Com Network Director installation can create the correct shortcuts to - 3Com 3C15500 | User Guide - Page 41
2 About Dialog Getting Started 37 To activate your software: 1 Click Activate Now to launch the Activation Wizard. 2 The wizard will ask you for your license key. Enter the key and click Next. 3Com Network Director will then direct you to a 3Com activation website to retrieve your activation key - 3Com 3C15500 | User Guide - Page 42
All subnets connected to your default router ■ Discover one or more specific routers Specify Subnets Step If you have chosen to discover specific subnets, enter their details here. Monitor Core Devices and Links Step You can choose whether you want 3Com Network Director to monitor the status of your - 3Com 3C15500 | User Guide - Page 43
, you can use 3Com Network Director to monitor and manage your network devices. Upgrading from 3Com Network Supervisor Coexistence with 3Com Network Director You cannot install 3Com Network Director on a PC which has 3Com Network Supervisor or 3Com Network Administrator installed. If you already - 3Com 3C15500 | User Guide - Page 44
for new features in 3Com Network Director - such as WAN support, or updated support for 3Com network devices. To avoid these problems, it is strongly recommended that you rediscover your network using 3Com Network Director. However, if you want to use saved 3Com Network Supervisor maps, please use - 3Com 3C15500 | User Guide - Page 45
save an upgraded map from within 3Com Network Director you will be unable to subsequently load it back into 3Com Network Supervisor. Using saved 3Com Network Supervisor files You cannot access the following 3Com Network Supervisor files from within 3Com Network Director: ■ Saved device backup files - 3Com 3C15500 | User Guide - Page 46
information, see "Discovering the Network" on page 91. Network Monitoring 3Com Network Director can actively or passively monitor your network for abnormal conditions which may indicate problems and will alert you when a problem is detected. 3Com Network Director also provides you with constantly - 3Com 3C15500 | User Guide - Page 47
For more information, see "Rmon" on page 403. VLAN Support 3Com Network Director can discover and represent all VLANs configured on your network. You can use the 3Com Network Director map to visualize VLAN connectivity on your network or view detailed VLAN information through the Properties dialog - 3Com 3C15500 | User Guide - Page 48
Configurations" on page 777. Agent Update Agent Update allows you to update software on your 3Com devices if you have a valid support contract. Agent Update also works in conjunction with 3Com Network Director's scheduling facility so that you can schedule the updates to take place overnight - 3Com 3C15500 | User Guide - Page 49
■ 3Com Device View ■ 3Com Switch Manager ■ 3Com Router Manager ■ Network Jack Configuration 3Com Network Director also 3Com Network Director up-to-date with the latest device support and fixes. You can view and download updates specifically for your copy of 3Com Network Director. In addition, 3Com - 3Com 3C15500 | User Guide - Page 50
46 CHAPTER 1: GETTING STARTED - 3Com 3C15500 | User Guide - Page 51
of the software beyond the evaluation period. This chapter describes how to activate 3Com Network Director. Once you have installed 3Com Network Director, you can the product's warranty period, entitling you to customer support for 3Com Network Director for the duration of the warranty. You can also - 3Com 3C15500 | User Guide - Page 52
The Product Number - the part number of your software, which starts with '3C'. The part number for 3Com Network Director is 3C15500. If you are upgrading from 3Com Network Supervisor Advanced Package v2.0, the part number for 3Com Network Director is 3C15500U ■ The Activation Key - the key returned - 3Com 3C15500 | User Guide - Page 53
displayed. Activation Wizard The Activation Wizard guides you through the activation process. The Wizard can be launched either by clicking Activate Now on the About dialog, or by clicking Help > Activate Now from the top level menu. Once 3Com Network Director is activated, the Activation Wizard is - 3Com 3C15500 | User Guide - Page 54
The wizard consists of two steps as follows: 1 Entering the license key - the key can be found inside the CD sleeve of your 3Com Network Director software. The license key is five groups of hexadecimal characters separated by dashes. For example: 3ND - 1BF9 - 093B - AX5F - 8343 Type the license key - 3Com 3C15500 | User Guide - Page 55
your product manually at: http://www.3com.com/register However, 3Com recommends that you use the Activation Wizard. Obtaining Product Upgrades It is important that your copy of 3Com Network Director is kept up-to-date with: ■ Latest features and functionality ■ Support for new network devices - 3Com 3C15500 | User Guide - Page 56
3Com Network Director will only be made available to customers with current service agreements. Without a current service agreement, 3Com Network Director may not be able to recognize new 3Com network devices. All software upgrades for 3Com Network Director are available for download from the 3Com - 3Com 3C15500 | User Guide - Page 57
Key" on page 89 for more information. Where can I find the license key for 3Com Network Director? The license key is printed on the 3Com Network Director packaging. If you are using an evaluation copy downloaded from the 3Com web-site, you cannot activate the product. Please contact your preferred - 3Com 3C15500 | User Guide - Page 58
Advanced Package v2.0 and want to keep using this software on a different workstation from 3Com Network Director then you must order 3Com Network Director product number 3C15500 from your reseller. If you have previously purchased 3Com Network Supervisor Advanced Package v2.0 and no longer want to - 3Com 3C15500 | User Guide - Page 59
comply with the software license agreement you must driver or if you upgrade your computer's operating system, the serial number will then be invalid. In this case, you need to contact 3Com Customer Support to have your activation key revoked. Refer to "How do I move my copy of 3Com Network Director - 3Com 3C15500 | User Guide - Page 60
3Com Customer Support to revoke the existing activation key for Advanced Package v2.0. 2 Install 3Com Network Supervisor v4.0 and Advanced Package v2.0 on the new workstation. 3 Run 3Com Network found inside the CD sleeve of your 3Com Network Director software and click Next. The license key should - 3Com 3C15500 | User Guide - Page 61
case, please refer to "I want to install my upgrade from 3Com Network Supervisor Advanced Package v2.0 to 3Com Network Director on a different workstation." on page 55. You may now install 3Com Network Director: 1 Uninstall 3Com Network Supervisor v4.0 - this will also uninstall Advanced Package v2 - 3Com 3C15500 | User Guide - Page 62
Wizard and click Next. Your copy of 3Com Network Director should now be fully activated. Troubleshooting My license key to upgrade from 3Com Network Supervisor Advanced Package v2.0 is rejected You previously installed and purchased 3Com Network Supervisor Advanced Package v2.0 and want to - 3Com 3C15500 | User Guide - Page 63
Troubleshooting 59 If the activation key is rejected, this probably means that the workstation on which you installed 3Com Network Supervisor 10 Enter the license key found inside the CD sleeve of your 3Com Network Director software and click Next. The license key should now be accepted. Proceed to - 3Com 3C15500 | User Guide - Page 64
60 CHAPTER 2: PRODUCT ACTIVATION - 3Com 3C15500 | User Guide - Page 65
3 MAIN WINDOW Overview This chapter describes the 3Com Network Director main window. The main window provides access to all of the features in 3Com Network Director. This chapter covers the following topics: ■ Key Concepts ■ Components ■ Examples ■ Key Considerations - 3Com 3C15500 | User Guide - Page 66
These files use the same name as the map file but have Events.edb and .properties file extensions. These files are used internally by 3Com Network Director. While the presence of these files is not required to successfully load a map file, previously logged event information will not be available if - 3Com 3C15500 | User Guide - Page 67
Map The map provides a graphical representation of the topology of your network. The map is covered in more detail in "Working with the Map" on providing a location for minimized progress dialog boxes, such as the Network Discovery Progress dialog box. The status bar provides information on the - 3Com 3C15500 | User Guide - Page 68
that was only connected to by WAN links, the text displayed would be: Selected Link from Router "New York WAN Router" to WAN Cloud "Acme ISP Network" ■ For multiple selections in the map or tree the text displayed is: Selected Multiple Items The status bar also provides detailed information about - 3Com 3C15500 | User Guide - Page 69
206 for more information. Locks 3Com Network Director. Prevents other users from accessing 3Com Network Director when you leave your workstation unattended box allows you to add new devices and clouds to the map. See "Manually Modifying the Map Contents" on page 202 for more information. Links the - 3Com 3C15500 | User Guide - Page 70
allows you to find items in the map by various attributes, such as Name, IP or MAC address, and VLAN. See "Finding Items on Your Network"on page 192 for more information. Edit > Select All Ctrl+A Selects all map items in the currently viewed submap. See "Selecting Items in the Map - 3Com 3C15500 | User Guide - Page 71
" on page 164 for more information. Toggles whether devices in the map are grouped by subnet or not. See "The Grouped Network View " on page 156 and "The Ungrouped Network View " on page 158 for more information. Selects the display of the Custom Name label for map items in the tree and - 3Com 3C15500 | User Guide - Page 72
" on page 201 for more information. Navigates to the parent submap of the currently visible submap when you are viewing the devices in your network grouped by subnet. See "Navigation" on page 182 for more information. Navigates to the submap associated with the currently selected subnet or device - 3Com 3C15500 | User Guide - Page 73
"3Com Switch Manager" on page 475 for more information. Launches 3Com Router Manager for the selected router. See "3Com Router Manager" on page 475 for more information. Launches 3Com Device View for the selected device. See "3Com Device View" on page 475 for more information. Launches 3Com Network - 3Com 3C15500 | User Guide - Page 74
Agent Update Hot Key Device > Agent Import Device > Configure > Switch Devices Device > Configure > Switch Ports Device > VLAN > Create a VLAN Device > VLAN > Edit the monitoring of the selected items by 3Com Network Director. See "Starting and Stopping Monitoring" on page 293 for more - 3Com 3C15500 | User Guide - Page 75
Hot Key Monitoring > What's Wrong Monitoring > Live Graphs Monitoring > Historical Report Operation Stops the monitoring of the selected items by 3Com Network Director. See "Starting and Stopping Monitoring" on page 293 for more information. Launches, or brings to the front, an instance of the - 3Com 3C15500 | User Guide - Page 76
each menu item for the Tools menu and the associated operation invoked by selecting it. Table 10 Tools Menu Menu Item Tools > Reports Tools > Network Discovery Tools > Scheduled Tasks Tools > Show VLANs Hot Key Operation Launches the Reports dialog box. See "Reports Dialog Box" on page 458 for - 3Com 3C15500 | User Guide - Page 77
invoked by selecting it. Table 11 Help Menu Menu Item Help > Contents and Index Hot Key Help > Launch User Guide Help > Activate Now Help > About 3Com Network Director Operation Launches the online help. For more information see "Help > Contents and Index Menu Option" on page 87. Launches - 3Com 3C15500 | User Guide - Page 78
Password Protection Message See "Security" on page 85 for more information about enabling password protection for 3Com Network Director. File > Exit Menu This operation closes 3Com Network Director. The following message will Option be displayed if there are outstanding changes to the map that need - 3Com 3C15500 | User Guide - Page 79
the pending state if it is scheduled to start but cannot for some reason. For example, if a manual Network Discovery is currently in progress which prevents a scheduled Network Discovery from executing. Once the blocking task has finished the pending scheduled task is executed. If the following - 3Com 3C15500 | User Guide - Page 80
Tools > Options Menu Option This menu item launches the Options dialog box, which is used to configure the default behavior of 3Com Network Director. The Options dialog box consists of the following tabs: ■ General - default file locations and how the application should behave. ■ Device Management - 3Com 3C15500 | User Guide - Page 81
, not just the map that was open when the option was set. All options are automatically saved, and are retained for future use in 3Com Network Director. General This tab, as shown in Figure 10, displays the following: ■ Default File Location - change the default location where map files are saved to - 3Com 3C15500 | User Guide - Page 82
displayed, you can append the manufacturer's name to the start by enabling the Translate MACs option. For example, 08-00-8F-xx-xx-xx becomes 3Com-xx-xx-xx. This option is disabled by default. See "Vendor Translation of MAC Addresses" on page 177 for more information. ■ Show the Live Update - 3Com 3C15500 | User Guide - Page 83
Tab Components 79 Choose from Web Management, which is the default, Telnet Management or Administration Application. If a device does not support the preferred Web Management application, Telnet is launched instead. For further information on the Device Management options see "Configuring Single - 3Com 3C15500 | User Guide - Page 84
following options: ■ Use Web browser settings - this is the default option. If your web browser uses a proxy server to access the Internet, 3Com Network Director will use the same system. Figure 12 Internet Tab ■ Direct connection to the Internet - use this option if your management station connects - 3Com 3C15500 | User Guide - Page 85
of devices to discover during Network Discoveries. For further information on the Discovery tab see "Scheduled Discovery Pane" on page 124. Figure 13 Discovery Tab Monitoring This tab allows you to select the default global monitoring options that 3Com Network Director applies to devices in the - 3Com 3C15500 | User Guide - Page 86
for the monitor. You may choose to fully disable the history for monitors, or may change the period of time for which 3Com Network Director maintains history. 3Com Network Director maintains a 10-minute monitor history by default. See "Configuring the Storage of Monitoring Data" on page 306 for more - 3Com 3C15500 | User Guide - Page 87
date. You may choose to fully disable the history for events, or may change the period of time for which 3Com Network Director stores the history. 3Com Network Director stores a 10-minute history before and after events by default. See "Configuring the Storage of Monitoring History for Events" on - 3Com 3C15500 | User Guide - Page 88
- whether to include devices in a VLAN based only upon their configuration or based upon the network topology as well. Devices are included in VLANs based upon both their configuration and the network topology by default. For further information on the VLANs tab see "Options Dialog Box" on page - 3Com 3C15500 | User Guide - Page 89
Security This tab as shown in Figure 18, allows you to specify whether 3Com Network Director should request a password when the application is launched. Enabling password protection for 3Com Network Director additionally allows you to lock the application when you leave your workstation unattended - 3Com 3C15500 | User Guide - Page 90
86 CHAPTER 3: MAIN WINDOW Figure 18 Security Tab ■ Password required to open application - Enable this option if you would like 3Com Network Director to prompt for the application password whenever the application is launched, and when you explicitly lock the application using the File > Lock menu - 3Com 3C15500 | User Guide - Page 91
to access the rest of the 3Com Network Director user interface, however the following windows are not locked by 3Com Network Director and should be closed before you leave the workstation unattended: ■ Device View ■ Switch Manager ■ Router Manager ■ Network Jack Configuration ■ RMON View Help - 3Com 3C15500 | User Guide - Page 92
of 3Com Network Director Version functionality and want to contact 3Com support. The support engineer asks you for your 3Com Network Director product version. 1 Launch the About dialog box using Help > About 3Com® Network Director: Figure 20 About Dialog Box 2 The product version number and service - 3Com 3C15500 | User Guide - Page 93
Box - Version Number and Service Pack Level Finding the Serial Number, License Number and Activation Key You have a query about an aspect of 3Com Network Director functionality and contact 3Com support. The support engineer asks you for your 3Com Network Director serial number, license Number and - 3Com 3C15500 | User Guide - Page 94
remaining evaluation period. Key Considerations The following section provides useful information and advice on the Main Window. Scheduled Tasks When 3Com Network Director is closed, all currently scheduled tasks are cancelled. When the application runs again the tasks will have to be re-scheduled - 3Com 3C15500 | User Guide - Page 95
information about your network. Before you can use 3Com Network Director to manage your network you must instruct it to perform a network discovery. This chapter explains the discovery process, and how to tailor it to work best on your network. It also describes any problems you may encounter - 3Com 3C15500 | User Guide - Page 96
stages are outlined in this section as follows: ■ How 3Com Network Director discovers devices on the network ■ How 3Com Network Director determines the network topology ■ How 3Com Network Director re-discovers information about a network it already knows about ■ How scheduled discoveries work The - 3Com 3C15500 | User Guide - Page 97
. Its purpose is to determine if a device supports certain network protocols. Specifically, these are: ■ SNMP ■ HTTP ■ Telnet The most detailed information is generally obtained from devices that support SNMP. For these devices 3Com Network Director initially starts the communication using the read - 3Com 3C15500 | User Guide - Page 98
devices that were found to support SNMP during the Device Capability Stage. 3Com Network Director reads standard SNMP MIBs in 3Com Network Director PC is attached, this is achieved by reading the ARP cache of the 3Com Network Director PC. For remote subnets this is achieved by querying any routers - 3Com 3C15500 | User Guide - Page 99
if the Telnet service is supported. 2 Determining if support SNMP. Many of the phones will not have IP addresses and consequently will not respond to a ping. The NBX chassis contains a non-visible Web page which 3Com Network Director downloads using HTTP. The page provides 3Com Network Director - 3Com 3C15500 | User Guide - Page 100
which 3Com Network Director knows how to interrogate further, often using proprietary MIBs. Sizing basically means obtaining detailed configuration information. Normally this includes: ■ determining the number of units in a stack or number of modules in a chassis ■ their type and software version - 3Com 3C15500 | User Guide - Page 101
(or more specifically multinet) at a time. 3Com Network Director uses the term multinet to describe a situation where more than one subnet is attached to a single router port. This can result in devices on different subnets sharing the same switched infrastructure. Consequently, although devices may - 3Com 3C15500 | User Guide - Page 102
whether they are supported by 3Com Network Director. For instance, it switch. Remote Poll, sometimes called Remote Ping, is a mechanism, using SNMP, to instruct a device to ping another IP address. This requires an SNMP set instruction to be sent to the device, which relies on 3Com Network Director - 3Com 3C15500 | User Guide - Page 103
that this MAC address belongs to a new node. Consequently 3Com Network Director will show the MAC-only node on the map. You may have deliberately instructed the discovery operation to only detect IP ranges relevant to your switches which are outside the ranges of your endstations. Consequently the - 3Com 3C15500 | User Guide - Page 104
THE NETWORK devices may not support remote poll. If either the write community string is not known for a device or it does not support remote switch will learn the addresses of the two end stations. It will not learn the address of the hub (because it does not have one) and 3Com Network Director - 3Com 3C15500 | User Guide - Page 105
information has been obtained from one or more switches, possibly because 3Com Network Director lost communication with that switch during the topology process. If the problem device were an edge switch that is actually connected to many end stations, 3Com Network Director would show this as below: - 3Com 3C15500 | User Guide - Page 106
, and also the bottom switch. However, because 3Com Network Director lost communication with the bottom switch, it also gets treated as if it were an end station (since topology information could not be read from it). If a problem was encountered when communicating with the switch you should see an - 3Com 3C15500 | User Guide - Page 107
where the cloud is. If all the switches give unit and port details, it is likely that there is another device that should be positioned where the cloud is, but that was not detected by 3Com Network Director. Other Clouds Sometimes 3Com Network Director deliberately shows clouds, even when it - 3Com 3C15500 | User Guide - Page 108
. The Discovery Process - Rediscovery When the first discovery operation is fully complete the information 3Com Network Director has obtained will be displayed on the map. You can then instruct 3Com Network Director to perform additional discoveries (rediscoveries). You may wish to do this because - 3Com 3C15500 | User Guide - Page 109
node. ■ If a port previously had a link and the second discovery could not successfully establish that the same port was connected (for example, 3Com Network Director lost communication part way through) then that link will not be deleted. Instead it will be marked as unconfirmed and as a result - 3Com 3C15500 | User Guide - Page 110
times. You can, however, subsequently cancel or modify the schedule if you wish. When you schedule a discovery from the Network Discovery wizard you are instructing 3Com Network Director to do two things - to do a discovery (with the parameters specified in the wizard) immediately when you exit the - 3Com 3C15500 | User Guide - Page 111
is opened it displays the Welcome dialog box: Figure 26 Welcome Dialog Box If you have not yet registered 3Com Network Director and it is still in the evaluation period, the first dialog box you see when launching the application is the About dialog box. Closing this - 3Com 3C15500 | User Guide - Page 112
with a discovered subnet selected If you select one or more discovered subnets in the map or the tree and select Network Discovery from the tools menu, the Network Discovery wizard will be launched at the Specify Subnets pane. (See Specify Subnets Pane on page 111.) The subnets you selected - 3Com 3C15500 | User Guide - Page 113
double-clicking on its icon in the map or tree. This has the same effect as selecting Network Discovery from the tools menu. The Network This step-by-step guide takes you through the Network Discovery wizard Discovery Wizard in order to customize the discovery process. When you complete the wizard - 3Com 3C15500 | User Guide - Page 114
radio button and click Next to discover all devices on the local subnet (to which the 3Com Network Director PC is attached) and any additional subnets that are one router hop away (but only via LAN connections). 3Com Network Director establishes which subnets are one hop away by querying the default - 3Com 3C15500 | User Guide - Page 115
of the wizard. Figure 30 Specify Subnets Pane If you select one or more subnets in the tree or map view prior to launching the Network Discovery wizard then you will be immediately taken to this step, with the details of the subnets you selected added to the list box. Once - 3Com 3C15500 | User Guide - Page 116
ranges radio buttons are only enabled if you have entered a valid Address and Mask pair. The ranges table lists the ranges of IP addresses that 3Com Network Director will detect for your specified subnet. To add a range to the list of ranges to detect, use the Add button. This will launch the Add - 3Com 3C15500 | User Guide - Page 117
of how to remove devices permanently from the map. The Retry/Timeout information section of this dialog box allows you to control how long 3Com Network Director waits for a response from a device for the different protocols it uses during discovery and how many times it will retry if it fails to - 3Com 3C15500 | User Guide - Page 118
204 for details of how to remove subnets permanently from the map. Choosing from a list of known subnets The Find Subnets button instructs 3Com Network Director to attempt to locate the subnets immediately neighboring your local subnet. The located subnets are displayed in the Find Subnets pane. - 3Com 3C15500 | User Guide - Page 119
click OK to add them to the list of subnets to be rediscovered. You can then edit their range and retry/timeout values as normal. 3Com Network Director communicates with the routers on your local subnet in order to populate the above dialog box. It uses SNMP to communicate with the - 3Com 3C15500 | User Guide - Page 120
34 Query Failure Dialog Box If you want 3Com Network Director to continue searching for subnets using the router highlighted in this dialog box, enter the correct read community for the router and select OK. Click Cancel to move onto the next router. Importing subnets from a file The Import Subnets - 3Com 3C15500 | User Guide - Page 121
contains valid subnet information then all subnets listed in the selected file will be added to the subnets list. If your file contains any errors, 3Com Network Director will display the first error it finds, and then reject the whole file: no subnets will be added to the subnets list. You should - 3Com 3C15500 | User Guide - Page 122
will start at the end of discovery. However, you can subsequently enable monitoring on selected devices from the updated map. When 3Com Network Director is not operating in automatic monitoring mode the dialog allows you more advanced control over the monitoring of the discovered subnets. See - 3Com 3C15500 | User Guide - Page 123
settings. In this case, you will need to specify the modified community strings in this pane, otherwise 3Com Network Director will not be able to access them using SNMP. 3Com Network Director attempts to use different community strings in the following order: 1 If a device already exists on your map - 3Com 3C15500 | User Guide - Page 124
NETWORK strings to some of your devices (for instance you may have assigned different strings to your routers and switches network, or specifically, on the subnets you are about to discover. Figure 37 NBX Voice Network Voice Network pane, indicating that you have an NBX voice system on your network. - 3Com 3C15500 | User Guide - Page 125
Components 121 (HTTP) only - they do not support the SNMP protocol. When you access an NCP device with you Web browser you will be asked for a username and password. 3Com Network Director uses the same username and password to obtain information from NCP devices. See "Key Concepts" on page 92. It is - 3Com 3C15500 | User Guide - Page 126
interest to you. ■ To ensure you do not reach the 3Com Network Director node limit during discovery. If you leave the Use defaults from This instructs the discovery process to discard any non-core devices. Core devices include. ■ Managed switches, hubs and routers ■ NBX Network Call Processors - 3Com 3C15500 | User Guide - Page 127
map by first deleting the subnet from the map and then discovering it afresh in the Network Discovery wizard, selecting the appropriate option in this wizard pane. See "Deleting Items from the to the map in this subnet (such as manual changes to the topology or setting the Custom Name of a device). - 3Com 3C15500 | User Guide - Page 128
restrict the devices that are added to each subnet appropriately. If you want to change the discovery options for a subnet without re-running the Network Discovery wizard for that subnet, select the subnet in the map, select the Device > Properties menu option to launch the Properties dialog box for - 3Com 3C15500 | User Guide - Page 129
Figure 41 Options Dialog Box - Discovery Tab Components 125 The Discovery tab allows you to specify how discoveries will be scheduled in the future. The options on this dialog box are as follows: Never Select this option to schedule no future discoveries.Note that if there is currently a pending - 3Com 3C15500 | User Guide - Page 130
, timeouts etc. will be used again. When a scheduled discovery is started, the Discovery Progress dialog box is shown in its minimized state. See "The Network Discovery Progress Dialog Box" on page 128 for more detail. Once a discovery has been scheduled an entry for it will appear in the Scheduled - 3Com 3C15500 | User Guide - Page 131
Discovery Wizard - Summary Pane When you click Finish on this, or any other step of the wizard, 3Com Network Director attempts to start the discovery process, using the options you have specified. If there is a conflicting task currently running, the standard Task In Progress dialog - 3Com 3C15500 | User Guide - Page 132
Figure 43 Task in Progress Dialog Box The Network The Network Discovery Progress dialog box is displayed while the Discovery Progress discovery process is running. The process starts when you click Finish on Dialog Box the Network Discovery wizard, or when a scheduled discovery is started. Figure - 3Com 3C15500 | User Guide - Page 133
minimized form. In this case a progress bar appears in the status bar of the main window, indicating that it is performing a discovery: Figure 45 Network Discovery Progress Dialog Box - Minimized You can use the Stop button on the status bar to cancel the discovery operation, and the Restore button - 3Com 3C15500 | User Guide - Page 134
automatically displayed when the discovery process completes: Figure 46 Network Discovery Summary Dialog Box If a scheduled discovery completes following information: Discovery problems: This shows the number of problem conditions, such as timeouts, that 3Com Network Director encountered during the - 3Com 3C15500 | User Guide - Page 135
report, using the View Report button, to find out what the problems were. Note that this button will be disabled if no problems were encountered. Network Misconfigurations: When the discovery process is complete 3Com Network Director analyses the results in an attempt to establish if any part of - 3Com 3C15500 | User Guide - Page 136
tables. Each of the problems listed within the report has a severity level associated with it, either Warning or Error. For instance, failing to determine the write community string is considered a warning, since, although it is required for other areas of 3Com Network Director it is not essential - 3Com 3C15500 | User Guide - Page 137
information on devices that appear between network discoveries as users log in and log out due to the Network Login support. See "Network Login" on page 227. the routers, that weren't part of the list of subnets to discover. These are shown as undiscovered subnets. 3Com Network Director attempts - 3Com 3C15500 | User Guide - Page 138
attempts to position the new nodes relative to your changes. If you are not happy with the results you can manually move the nodes yourself or you can force 3Com Network Director to perform a clean layout of the view by selecting View > Relayout Map. Examples This section provides examples of how - 3Com 3C15500 | User Guide - Page 139
Figure 48 Options Dialog Box - Discovery Tab Examples 135 4 Enter "12:00" into the time field and select "am" within the am/pm drop-down list. Ensure that the day option is selected in the every drop-down list. 12:00 am is midnight and 12:00 pm is midday. 5 Commit your scheduled discovery by - 3Com 3C15500 | User Guide - Page 140
rediscover, the easiest way is to setup the schedule at the same time you perform your initial discovery. 1 Launch the Network Discovery wizard (e.g. by selecting Tools > Network Discovery). 2 Step through the wizard as you would normally, ensuring you enter the subnets you wish to be discovered - 3Com 3C15500 | User Guide - Page 141
should be discovered during the scheduled discovery at the quieter time. I have four separate subnets - how do I specify them? While 3Com Network Director is capable of automatically discovering your local subnet and its immediate neighbors, you may only want to discover selected subnets. In the - 3Com 3C15500 | User Guide - Page 142
, go to step 8, below. ■ If the subnets are not all within one router hop, continue from step 4 below., you should continue from 4, below. 4 Click wizard using the Next button. Once you click Finish on the wizard, 3Com Network Director will start discovering your subnets. One of my subnets is over a - 3Com 3C15500 | User Guide - Page 143
the wizard, 3Com Network Director will start 3Com recommends that you change the community strings on your network devices from the factory defaults. You may want to leave the read community strings as public for your switches but may wish to change them to something more secure for your routers - 3Com 3C15500 | User Guide - Page 144
community string of your routers, and additionally the write community string of your switches. 6 Click Finish if you do not wish to change any of the remaining defaults. Alternatively, continue through the wizard using the Next button. Once you click Finish, 3Com Network Director will discover the - 3Com 3C15500 | User Guide - Page 145
new devices that have been released after the version of 3Com Network Director you are using, the devices may be shown as Generic SNMP or 3Com Device. In this case you should check the 3Com web site for 3Com Network Director service packs that support these newer devices. There are clouds in my map - 3Com 3C15500 | User Guide - Page 146
the Telnet protocol 3Com Network Director will detect this and enable the Telnet management right-click menu option. See "Device Capability Detection " on page 93 for more information) ■ SNMP - If the device supports SNMP 3Com Network Director attempts to determine whether it is a router or switch - 3Com 3C15500 | User Guide - Page 147
router and will appear on the map at the top level with a diamond border. See "Working with the Map" on page 151. ■ Switching For third party switches 3Com Network Director reads bridge FDB 3Com Network Director attempts to determine the manufacturer of third party devices, only if they support - 3Com 3C15500 | User Guide - Page 148
operations. This message can only occur if you chose the second option on the first pane of the Network Discovery wizard, since this is where 3Com Network Director interrogates any routers it detects in order to determine the additional subnets to discover. If you still wish to discover this - 3Com 3C15500 | User Guide - Page 149
if a valid read community string was not provided for the router in the Network Discovery wizard. The consequences of this failure are that any IP address of the node and is connected to the correct switch port. 3Com Network Director was unable to determine the write community string for the following - 3Com 3C15500 | User Guide - Page 150
the following NBX devices This is due to the fact that 3Com Network Director does not support the version of software running on the NBX unit. A service pack may be available for 3Com Network Director on the 3Com web site that supports this version. Topology Section The potential issues that may be - 3Com 3C15500 | User Guide - Page 151
versions. In this case you should check the 3Com web site for 3Com Network Director service packs which will support the latest version. The following devices have been configured into multiple segments This is a feature of the Port Switch Hub families of the devices which allow the separation - 3Com 3C15500 | User Guide - Page 152
NETWORK however is the hubs/switches being configured in a way that is not supported by 3Com Network Director or if 3Com Network Director lost communication with any of the switches certain point in the topology process 3Com Network Director may decide to instruct one device to remote ping another. - 3Com 3C15500 | User Guide - Page 153
may in the future be blocked by the Spanning Tree Protocol. 3Com Network Director may not be able to detect this occurring. Some third party devices do not provide suitable MIB support to allow 3Com Network Director to initially determine and subsequently track changes in spanning tree topology - 3Com 3C15500 | User Guide - Page 154
on some third party devices that do not provide a suitable speed via their MIBs. It may also occur if 3Com Network Director lost communication with the device during Network Discovery, in which case additional errors should appear in this report to indicate the loss of communication. You can set - 3Com 3C15500 | User Guide - Page 155
This chapter describes how to work with the map and tree in 3Com Network Director. The map and tree provide the main interface for viewing and managing your network. They enable you to choose how you want to view your network, show the current health of monitored devices and links within your - 3Com 3C15500 | User Guide - Page 156
The Map The map is displayed on the right-hand side of the 3Com Network Director main window. It presents a graphical representation of your network topology for the devices discovered on the network. Figure 52 The Map The graphical representation consists of icons that represent devices, subnets - 3Com 3C15500 | User Guide - Page 157
XRN Switching Fabric are grouped together into a single XRN Fabric icon in the map. A square represents any other discovered device on the network. This includes end stations, servers and NBX phones. It also includes devices that could not be discovered fully, for example when 3Com Network Director - 3Com 3C15500 | User Guide - Page 158
address of the subnet being represented. If the subnet has not yet been discovered then the label includes the text "(Undiscovered)". 3Com Network Director allows you to group related devices together into a device group. Each device group is represented by a cloud contained within a rectangle. For - 3Com 3C15500 | User Guide - Page 159
devices. To collapse the subnet or device group, click the symbol next to its name. Each device appears only once in the tree. Routers and layer-3 switches appear at the top-level of the tree. Other devices appear within their appropriate subnet or device group. The tree also shows subnets that - 3Com 3C15500 | User Guide - Page 160
network, showing the routers and layer-3 switches, the links between them, and which IP subnets they are logically connected to. ■ Submaps - These present logical groupings of the devices on your network. There are two types of submap: ■ Subnets - are automatically created by 3Com Network Director - 3Com 3C15500 | User Guide - Page 161
Figure 54 Subnet Example Components 157 ■ Device groups - allow you to manually group together similar devices, to allow you to represent your network more intuitively. Figure 55 Device Groups Example - 3Com 3C15500 | User Guide - Page 162
Each icon on the map represents a device on your network that has been discovered by 3Com Network Director through use of the Network Discovery wizard, or has been added to the map manually. For more information see "The Network Discovery Wizard" on page 109. For information about adding single - 3Com 3C15500 | User Guide - Page 163
159 3Com SuperStack 3 family device 3Com SuperStack 3 family Power over Ethernet device 3Com SuperStack II family device 3Com Switch 7700 3Com Switch 4007R 3Com Switch 4005 Other 3Com chassis devices, such as the 3Com Switch 4007 3Com Network Jack 3Com OfficeConnect family device 3Com AirConnect - 3Com 3C15500 | User Guide - Page 164
160 CHAPTER 5: WORKING WITH THE MAP Device Icon Description 3Com Wireless LAN Access Point All other network infrastructure devices Table 14 NBX Networked Telephony Solution Icons Telephony Solution Icon Description NBX network call processor NBX line card IP telephone Analogue telephone Fax machine - 3Com 3C15500 | User Guide - Page 165
in the map than other devices. For more information about special support see "Graphical Support for Specific Device Types" on page 225. Pull-Right Menu Starts the monitoring of the selected map items and links by 3Com Network Director. See "Starting and Stopping Monitoring" on page 293 for more - 3Com 3C15500 | User Guide - Page 166
See "Events List Components" on page 326 for more information. IP Ping Launches a 3Com Network Director console dialog box running a ping command for the selected device. Trace Route Launches a 3Com Network Director console dialog box running a trace route command for the selected device. RMON - 3Com 3C15500 | User Guide - Page 167
to, and selects, the NBX network call processor in the map that this phone is related to. For more information see "NBX Support" on page 753. Launches the speed link. This may occur, for example, with a 3Com Switch 4007 that has an Enterprise Management Engine (EME) module if it links to - 3Com 3C15500 | User Guide - Page 168
links that are unvalidated. Unvalidated links can occur when a rediscovery of a subnet fails to find a link that existed previously, or when you manually add a link to the map. A link remains unvalidated until a rediscovery verifies the existence of the link. For more information about rediscovery - 3Com 3C15500 | User Guide - Page 169
resilient link pair. Spanning Tree State Spanning Tree Protocol has disabled the link. Spanning Tree Protocol Support 3Com Network Director monitors the spanning tree state of links in your network for which the spanning tree protocol is enabled. The map is dynamically updated to show which links - 3Com 3C15500 | User Guide - Page 170
you choose to view devices grouped by subnet. In the top-level map, they are shown as connections between a subnet and a device, for example a router or layer-3 device. Each layer-3 connection represents the logical connectivity between a device and the subnet it is linked to it is shown in the map - 3Com 3C15500 | User Guide - Page 171
page 229 for more information. Clouds Clouds can be used for several reasons within the map: ■ They may be used to represent sections of the network where the topology is uncertain. This can occur automatically as a result of a - 3Com 3C15500 | User Guide - Page 172
links into two halves, so you can choose to monitor one half of the link, but not the other. For more information see "Monitoring the Network" on pagepage 273 and "Using 3Com Network Director On A Multi-Site Network" on page page 681. ■ They may be used to represent logical entities in your - 3Com 3C15500 | User Guide - Page 173
device is a router or layer-3 switch. ■ A cloud will appear in the top-level map if it is connected to two or more routers or layer-3 switches. This means that This includes routers and layer-3 devices. Subnets are only shown in the map when you choose to view the devices in your network grouped by - 3Com 3C15500 | User Guide - Page 174
and the Top-Level Map" on page 184. If a router or layer-3 switch in your network has two or more IP interfaces configured on a single port Name Undiscovered Subnets If 3Com Network Director discovers a device that has an IP interface on a subnet that 3Com Network Director has not recognized, then - 3Com 3C15500 | User Guide - Page 175
items in the pop-up. Table 22 Subnets Menu Options Menu Item Operation Start Monitoring Starts the monitoring of the selected items by 3Com Network Director. See "Starting and Stopping Monitoring" on page 293 for more information. Stop Monitoring Stops the monitoring of the selected items by - 3Com 3C15500 | User Guide - Page 176
Device Details" on page 229 for more information. 3Com Network Director applies intelligent filtering to ensure that an operation applied contain devices that are members of that submap and cannot contain routers or layer-3 switches. Ungrouping Device Groups If you no longer need a device group - 3Com 3C15500 | User Guide - Page 177
in the pop-up. Table 23 Device Groups Menu Options Menu Item Operation Start Monitoring Starts the monitoring of the selected items by 3Com Network Director. See "Starting and Stopping Monitoring" on page 293 for more information. Stop Monitoring Stops the monitoring of the selected items by - 3Com 3C15500 | User Guide - Page 178
device group. 3Com Network Director will intelligently filter out any items from the selection which don't make sense in the context of the requested operation. This gives you a convenient way to apply operations to all members of a device group, without having to manually - 3Com 3C15500 | User Guide - Page 179
hold the mouse pointer over the half of the link nearest to the router or layer-3 switch the unit and port or ifIndex that the IP interface is configured of tooltips for all map items. The sources that 3Com Network Director uses to obtain each label for a particular map item are described in the - 3Com 3C15500 | User Guide - Page 180
DNS Name System Name IP Address MAC Address Label Source Manually specified. For more information about how to set the switch. For more information about network login see "Dynamic Network Login Support" on page 205. Map items other than devices do not have a User Name label. 3Com Network Director - 3Com 3C15500 | User Guide - Page 181
to identify the device's manufacturer. The second half is a unique ID provided by the device's manufacturer. 3Com Network Director can automatically determine the manufacturer of each device on the network that has a MAC address by translating the OUI portion of the MAC address from its hexadecimal - 3Com 3C15500 | User Guide - Page 182
178 CHAPTER 5: WORKING WITH THE MAP Figure 61 MAC Address label display (2) By default, the automatic translation of the OUI of MAC addresses is turned off. To toggle this feature on or off, launch the Tools > Options dialog box and, from the General tab, set the Translate MACs option: - 3Com 3C15500 | User Guide - Page 183
. As new OUI values are assigned to vendors on a regular basis it is possible that 3Com Network Director will not have a mapping for a particular device in your network. In such a case 3Com Network Director will simply display the full MAC address. For more information about how you can extend this - 3Com 3C15500 | User Guide - Page 184
is possible to select all of the map items in the current submap, by selecting Edit > Select All, and to select all of the core network infrastructure devices, in all of the submaps, by selecting Edit > Select All Core Devices. Selecting Multiple Map Items in the Currently Viewed Map A set of - 3Com 3C15500 | User Guide - Page 185
Figure 63 Selecting Multiple Map Items Components 181 For the purposes of selection, a map item is considered to be within the selection rectangle if it is either wholly contained within the selection rectangle, or if the selection rectangle overlaps with its icon. Note that this method of - 3Com 3C15500 | User Guide - Page 186
performed in the map: Zoom in Zooms in on the map. If there are one or more items selected in the currently viewed submap then 3Com Network Director centers these items on the page and zooms in. If there are no items selected in the currently viewed submap, then - 3Com 3C15500 | User Guide - Page 187
Toolbar Zoom Buttons Button Action Zoom in Zoom out Fit to page In addition to these methods of zooming in and out of the map, 3Com Network Director provides a method for directly selecting the area of the map that you wish to view. This is similar to the selection rectangle described in - 3Com 3C15500 | User Guide - Page 188
of the rectangle: Figure 64 Using the Zoom Rectangle Navigating Between Submaps and the Top-Level Map When you are viewing the devices in your network grouped by subnet, the map display can only show the top-level map or any one submap at any given time. This means that in - 3Com 3C15500 | User Guide - Page 189
submap in this way and then navigate up you will arrive at the top-level map, not at your original submap. The title bar for 3Com Network Director indicates which submap you are currently viewing by listing details at the end of the title. The details shown depends upon the submap currently being - 3Com 3C15500 | User Guide - Page 190
by subnets, there is no submap in which both devices are visible. However, provided one of the devices is visible in the submap, 3Com Network Directorcan still draw the physical link between the two devices using a shortcut symbol to represent the other device. The shortcut icon used is similar - 3Com 3C15500 | User Guide - Page 191
at the top-level map, rather than return to your original submap. Where the device that a shortcut represents exists on more than one submap, 3Com Network Director selects one of these for the shortcut to link to. This is the submap represented by the text in parentheses shown after the shortcut - 3Com 3C15500 | User Guide - Page 192
to a device in the map, double-click on its entry in the tree. 3Com Network Director navigates to the submap that the device is listed under, centers the device within the display, and zooms in on the device. As routers and layer-3 switches are shown in the top-level of the tree, double-clicking on - 3Com 3C15500 | User Guide - Page 193
Figure 66 Trace Path Example Components 189 If you launch Trace Path without first selecting the two devices that you want to find the physical paths for, the toolbar is launched alongside the wizard. However, the toolbar buttons are only enabled once you have completed the selection of the two - 3Com 3C15500 | User Guide - Page 194
only those map items included in the currently viewed path. All other map items are hidden from view: Figure 67 Trace Path Filtered View To switch to filtered Trace Path view, toggle the Change View button in the Trace Path toolbar: Figure 68 - 3Com 3C15500 | User Guide - Page 195
> Trace Path and you do not have two devices selected. The wizard guides you through selecting the two devices that you want to find the physical paths are specified within the Find dialog box. See "Finding Items on Your Network" on page 192 for more information. However, only the Devices and NBX - 3Com 3C15500 | User Guide - Page 196
Tools > Trace Path then none of the steps of the wizard are pre-filled for you. Finding Items on Your Network You can find devices, subnets, device groups or links on your network by selecting Edit > Find, or by clicking the Find button in the toolbar: Figure 70 Find Button This button - 3Com 3C15500 | User Guide - Page 197
simply select appropriate Search Criteria to locate the required items, and click the Find button. 3Com Network Director will then examine the contents of the map and list the items that match your selected search searches such as finding all devices that include the text "switch" in their name. - 3Com 3C15500 | User Guide - Page 198
WORKING WITH THE MAP The wildcards supported by 3Com Network Director are shown in the following table: Table 31 Wildcard Characters Wildcard Matches * Zero or more characters ? Exactly one character For example: ■ To find all devices that include the text switch in their name, select Find - 3Com 3C15500 | User Guide - Page 199
Box to Select Items for Operations There are various operations in 3Com Network Director for which you must first select a list of items to in the Name: field. User name Find devices that are logged on to the network using 802.1X whose user name matches the entered user name. You may use wildcards - 3Com 3C15500 | User Guide - Page 200
you enter in the Software version: field. Chassis devices and stacked switches can have multiple software versions running on them. If you use wildcards, or leave the Software version: field blank, and a device has multiple software versions that match the entered software version then the device - 3Com 3C15500 | User Guide - Page 201
in the Comment: field. Finding Links The Find: Links option allows you to find links on your network. The following Search by: options are available: Table 33 Find Links, Search by: options Search by: the media type to search for from a list of the media types supported by 3Com Network Director. - 3Com 3C15500 | User Guide - Page 202
the Comment: field. Finding NBX Telephony Components The Find: NBX Telephony Components option allows you to find NBX telephony components on your network. NBX telephony components include such devices as NBX call processors, line cards and NBX phones. The following Search by: options are available - 3Com 3C15500 | User Guide - Page 203
Components 199 Table 34 Find: Links, Search by: options Search by: Option Name User name User title User department Extension number Location Description Finds NBX telephony components whose Custom Name, DNS Name or System Name matches the entered name. You may use wildcards in the value that you - 3Com 3C15500 | User Guide - Page 204
you enter in the Comment: field. Modifying the Map Layout Whenever you perform a network discovery 3Com Network Director automatically organizes the representation of your network, or newly discovered portions of your network, in as compact and intuitive a manner as possible. However, the layout - 3Com 3C15500 | User Guide - Page 205
Map. For more information about changing the map contents see "Manually Modifying the Map Contents" on page 202. If you rediscover portions of your network, or discover a new portion of your network, within an existing map, 3Com Network Director will add newly discovered map items to the map, laying - 3Com 3C15500 | User Guide - Page 206
Message Relaying out the entire map will generally result in a better map layout. Manually Modifying the Map Contents By default the map only displays devices that 3Com Network Director has itself discovered on your network. In some instances you may wish to add map items to represent logical - 3Com 3C15500 | User Guide - Page 207
dialog box for each of the map items. In particular, you may wish to set the IP address for a device. Doing so will cause 3Com Network Director to interrogate the device to determine as much information about it as it can, including changing the device's icon to represent it as accurately as - 3Com 3C15500 | User Guide - Page 208
link is on then 3Com Network Director will rediscover that map item or link and add it back into the map. If you delete a subnet or device group from the map then all items within that subnet or device group will be removed from the map. Layer-3 connections cannot be manually deleted from the - 3Com 3C15500 | User Guide - Page 209
in and out of your network. Dynamic Network Login Support 3Com Network Director can dynamically track the users who are logged in on your network. In order for 3Com Network Director to do this, the users' end stations must be connected to 3Com switches that have Network Login functionality enabled - 3Com 3C15500 | User Guide - Page 210
submaps. ■ The options currently selected in the Tools > Options dialog box and the View menu. If you choose to either exit 3Com Network Director or open another map, 3Com Network Director may prompt you to save the map. This will occur if: ■ The map was newly created and has never been saved. ■ Any - 3Com 3C15500 | User Guide - Page 211
the map that you wish to open. 3Com Network Director retains a history of the saved maps that have been used. When you launch 3Com Network Director, and have previously saved maps, the Welcome for a new default location, or manually entering the required default location in the Map files field. - 3Com 3C15500 | User Guide - Page 212
in order to ensure that you do not lose any saved maps in the event of hardware failure. Exporting Maps to Microsoft Visio 3Com Network Director allows you to export your network map to Microsoft Visio. You can navigate to the subnet that you want to export, or uncheck the View > Group Map by - 3Com 3C15500 | User Guide - Page 213
Figure 75 Export to Visio Dialog Box Components 209 - 3Com 3C15500 | User Guide - Page 214
image checkbox. If you require a printout that includes the devices labels, 3Com recommends that you export the map for use in Microsoft® Visio®, and and the top-level map in the grouped network view, and the top-level map of the ungrouped network view can be configured to display a background image - 3Com 3C15500 | User Guide - Page 215
been determined, its size will not be changed unless you resize it by launching the Scale Background Image dialog box again. This allows you to manually layout the map items over the background image and have them appear in the same location over the background image regardless of any zooming or - 3Com 3C15500 | User Guide - Page 216
of how to perform common tasks with the map and tree. Selecting all of the SuperStack 3 Switch 4400 Devices in the Network You wish to locate and select all of the SuperStack 3 Switch 4400 devices in your network so that you can run the Capacity report for them. See "Capacity Report" on page 457 - 3Com 3C15500 | User Guide - Page 217
Figure 79 The Search by: List Examples 213 4 Select 3Com Switch 4400 from the Device type: list. Figure 80 Selection on the Device type: List 5 Click Find to search for the devices, and wait until the search has completed. - 3Com 3C15500 | User Guide - Page 218
214 CHAPTER 5: WORKING WITH THE MAP Figure 81 Search Results Table 6 Select a row in the results table and then press Ctrl + A to select all of the SuperStack Switch 4400 devices in your network. Figure 82 Devices Selected 7 Select Tools > Reports to launch the capacity report. - 3Com 3C15500 | User Guide - Page 219
Examples 215 Viewing all of the You are currently viewing the devices in your network grouped by subnet Physical Connections and need to see all of the physical connections for a particular router that for a Router is logically connected to multiple subnets. 1 Toggle the View > Group Map by Subnet - 3Com 3C15500 | User Guide - Page 220
216 CHAPTER 5: WORKING WITH THE MAP Figure 84 Double-Clicking on a Router in the Tree - 3Com 3C15500 | User Guide - Page 221
Examples 217 Focusing in on a Set You are viewing the devices in your network grouped by subnet, are in of Devices in the Map the top-level map, and wish to focus in on the servers on a particular subnet. 1 - 3Com 3C15500 | User Guide - Page 222
218 CHAPTER 5: WORKING WITH THE MAP Figure 86 Selection of Multiple Servers 3 Click on the Zoom in button in the toolbar. This centers the display around the selected servers and zooms in: Figure 87 Zooming In - 3Com 3C15500 | User Guide - Page 223
Examples 219 4 Repeat click on the Zoom in button in the toolbar until the servers are at the level of magnification desired: Figure 88 Adjusting the Magnification - 3Com 3C15500 | User Guide - Page 224
220 CHAPTER 5: WORKING WITH THE MAP Adding a Link between Map Items from Different Submaps You are viewing the devices in your map grouped by subnet, and you wish to add a link between two devices that are on different submaps. 1 Locate the two devices in the tree, select the first one with a - 3Com 3C15500 | User Guide - Page 225
the devices to be visible in the display in order to link them in this way. Adding a New Device You have just connected a new stackable switch to the network, and on Your Network Into wish to add it into the map so that you can manage it. the Map - 3Com 3C15500 | User Guide - Page 226
222 CHAPTER 5: WORKING WITH THE MAP If you are viewing the devices in your network grouped by subnet then you need to locate and navigate to the subnet that the new switch is present on, so that the device is present in the correct submap. 1 Find the submap in the tree and double - 3Com 3C15500 | User Guide - Page 227
Figure 92 Selecting Edit > Add Map Examples 223 3 Click and drag the stackable switch icon across into the location in the map where you wish the switch to be placed and drop the icon there. Figure 93 Moving the Stackable Switch Icon - 3Com 3C15500 | User Guide - Page 228
the Properties dialog to set the IP address of the new device. For more information about how do this see "Setting the IP Address for a Manually Added Device" on page 255. As well as adding in the switch to the map using the Add Map Item dialog, you could also add the - 3Com 3C15500 | User Guide - Page 229
Telephony Solution For more information about the specific support provided for NBX systems see "NBX Support" on page 753. 3Com Switch 4007 If you have an Enterprise Management Engine (EME) installed in your Switch 4007 chassis, 3Com Network Director will treat the EME as a blade within the chassis - 3Com 3C15500 | User Guide - Page 230
. Figure 96 Clients Connected to the Wireless Access Point For more information see "Monitoring the Network" on page 273. Files Associated with Saved Maps When a map is saved, 3Com Network Director actually creates or updates three files to contain the contents of that map. The three files - 3Com 3C15500 | User Guide - Page 231
map with the name Corporate Core, the following three files will be created: ■ Corporate Core.map ■ Corporate Core.properties ■ Corporate Core Events.edb All map. Network Login Network Login is a 3Com feature allowing you to control network access to end stations via 3Com switches. This feature - 3Com 3C15500 | User Guide - Page 232
IETF standard for a protocol providing authentication and accounting services. It is used as part of 3Com's Network Login and Switch Login features. Switch Login is a feature which stores the TELNET and web username and password details for a 3Com switch on a RADIUS server, rather than local to the - 3Com 3C15500 | User Guide - Page 233
, or for several simultaneously. ■ Modify the monitoring options for an individual device, or for several simultaneously. ■ Modify how 3Com Network Director communicates with an individual device, or with several simultaneously This chapter covers the following topics: ■ Key Concepts ■ Components - 3Com 3C15500 | User Guide - Page 234
single physical entity. Examples of nodes in 3Com Network Director are: ■ Device - a node that provides repeating, switching or routing capabilities for example a hub, switch, router, or bridge. ■ End-station - a node that does not have repeating, switching or routing capabilities for example any PC - 3Com 3C15500 | User Guide - Page 235
the item(s). You can do this by: ■ Clicking on the item's icon on the map. ■ Clicking on the item's name in the network tree. ■ Selecting an area of the network map by dragging the mouse while the left mouse button is pressed. 2 Using the Device > Properties menu option, or right-clicking on - 3Com 3C15500 | User Guide - Page 236
and system information. List of IP and MAC addresses for the item. Security settings for the item, such as the community strings that 3Com Network Director should use to communicate with the item. Information regarding the ports at each end of the link. Information regarding the power over Ethernet - 3Com 3C15500 | User Guide - Page 237
the item, such as the use of SNMP traps. Information regarding the retry and timeout settings used by 3Com Network Director when communicating with the device. The Device Tree If the selected map item is a networking device, the left-hand side of the dialog box shows a tree, as shown in Figure 99. - 3Com 3C15500 | User Guide - Page 238
- this is the root of the tree. It represents the whole device. The label displayed in the tree corresponds to the label displayed on the network map such as Custom Name, System Name, IP Address, etc. ■ Unit - this is displayed under the device tree node if there are at least two - 3Com 3C15500 | User Guide - Page 239
Components 235 ■ The unit index within the stack and the type of unit. ■ The slot index within the chassis and the type of blade. ■ Port - this is displayed under the device tree node if the device consists of only one unit, or under the unit tree node if there are several units within the device or - 3Com 3C15500 | User Guide - Page 240
device on the VLAN. Monitoring settings for the node, such as the use of SNMP traps. Information regarding the retry and timeout settings used by 3Com Network Director when communicating with the node. For a MAC-only device, the Monitoring tab will show No monitoring is available because - 3Com 3C15500 | User Guide - Page 241
Components 237 Properties Dialog Box If the map item is a device supported by 3Com Network Director, the for a Supported Properties dialog box shows a tree on the left-hand side of the dialog Device box, with the tabbed pane on the right-hand side of - 3Com 3C15500 | User Guide - Page 242
and usage for Ethernet the selected port at the end of a link. VLANs The VLAN settings for the ports that are part of the aggregation Supported Device (Stack or Chassis) If the device is a stack or a chassis device, the tree on the left-hand side of the dialog box shows the - 3Com 3C15500 | User Guide - Page 243
Addresses Contents The system information for the unit/blade, such as type, hardware and software version, etc. Custom information for the unit, such as comments. The IP and MAC addresses for the unit/blade. Supported Device If the device is neither a stack nor a chassis device, the tree on the - 3Com 3C15500 | User Guide - Page 244
in the same format as the General tab for a unit. See Table 41. Properties Dialog Box 3Com Network Director cannot list the units, interfaces or ports within a for an Unsupported device that it does not support. For this reason, there is no tree on the Device left-hand side of the dialog box - 3Com 3C15500 | User Guide - Page 245
for an Unsupported Device Because 3Com Network Director does not support the device some information might be missing. Whenever information is missing, 3Com Network Director shows N/A indicating that it is not applicable or Unknown indicating that 3Com Network Director could not get the information - 3Com 3C15500 | User Guide - Page 246
, some information might be missing. Whenever information is missing, 3Com Network Director shows N/A indicating that it is not applicable or Unknown indicating that 3Com Network Director could not get the information. If the NBX pcXset software (softphone application) is running on the end-station - 3Com 3C15500 | User Guide - Page 247
phone: User title, user name, user department ■ Phone information: Extension number, location Because phones are unmanaged, some information might be missing. Whenever information is missing, 3Com Network Director shows N/A indicating that it is not applicable or Unknown indicating that - 3Com 3C15500 | User Guide - Page 248
Options Which nodes should be considered on this subnet during network discovery. Monitoring Monitoring settings for the subnet, such as the use of SNMP traps. Retry/Timeout Information regarding the settings used by 3Com Network Director when communicating with the devices in the subnet. - 3Com 3C15500 | User Guide - Page 249
Components 245 Properties Dialog Box The Properties dialog box for a device group consists of a single General for a Device Group tab, as shown in Figure 106. Figure 106 Properties Dialog Box for a Device Group The General tab shows the following information: ■ Custom Name - The name of the device - 3Com 3C15500 | User Guide - Page 250
instance: Ethernet, ATM, FDDI, etc. ■ Comments - the custom comment for the cloud The type of the cloud is determined from the media types of the network interfaces connected to it: ■ If all the connected interfaces are of the same media type, the cloud type is set to that media type. - 3Com 3C15500 | User Guide - Page 251
Components 247 ■ If the connected interfaces are of different media types, but are all of media types that are commonly used for WAN communications then the cloud type is set to "WAN". ■ If the connected interfaces are of different media types, and at least one of them is of a type that is not - 3Com 3C15500 | User Guide - Page 252
248 CHAPTER 6: VIEWING DEVICE DETAILS Figure 108 Properties Dialog Box for a Non-WAN Link The tabs available for a link are shown in Table 43: Table 43 Tabs Available for a Non-WAN Link Tab Title General Ports Contents General information for the link, such as speed, duplex mode, etc. Custom - 3Com 3C15500 | User Guide - Page 253
Components 249 Tab Title Contents Power over Ethernet Information regarding the power over Ethernet settings and usage for the ports at either end of the link. VLANs The VLANs that the ports at either end of the link are part of, whether the ports are tagged, etc. Monitoring Monitoring - 3Com 3C15500 | User Guide - Page 254
250 CHAPTER 6: VIEWING DEVICE DETAILS The tabs available for a WAN link are shown in Table 44: Table 44 Tabs Available for a WAN Link Tab Title Contents General General information for the link, such as media type and speed. Custom information, such as comments. Ports Information for the - 3Com 3C15500 | User Guide - Page 255
Components 251 Figure 110 Properties Dialog Box for a Layer-3 Connection The tabs available for a link to a subnet are shown in Table 45: Table 45 Tabs available for a Layer-3 Connection Tab Title General Contents General information about the source of the layer-3 connection on the device end - 3Com 3C15500 | User Guide - Page 256
252 CHAPTER 6: VIEWING DEVICE DETAILS Figure 111 Properties Dialog Box for a Multiple Selection The tabs shown in the tabbed pane depend upon the items that have been selected: ■ If the selected items are all of the same type (for example, if they are all physical links, or if they are all devices) - 3Com 3C15500 | User Guide - Page 257
112. Figure 112 No Common Information Across the Selection Where possible, 3Com Network Director displays the original layout for each tab. If the information for of the General tab for two devices of the same type (3Com SuperStack 3 Switch 4226T). The Type and Product Number are the same for both - 3Com 3C15500 | User Guide - Page 258
Changing the Custom Name only changes the label that 3Com Network Director uses for the network map - if you are changing the label for a device then 3Com Network Director makes no changes to the device itself. Changing the Comments 3Com Network Director allows you to specify comments for any item - 3Com 3C15500 | User Guide - Page 259
it does not have an IP address associated with it. 3Com Network Director lets you enter an IP address for that device. To specify the IP address for a manually added device: 1 Click on the icon for the device in the 3Com Network Director map to select it. 2 Select the Device > Properties menu option - 3Com 3C15500 | User Guide - Page 260
CHAPTER 6: VIEWING DEVICE DETAILS Figure 114 Addresses Tab for a Manually Added Device Figure 115 Cannot Contact the IP Address Specified Assigning an IP address to a manually added device only defines the IP address that 3Com Network Director uses to communicate with the device - it does not assign - 3Com 3C15500 | User Guide - Page 261
link. To specify port information for a manually added link: 1 Click on the icon for the link in the 3Com Network Director map to select it. 2 Select the Device ports. Warning: If the device at one end of the link is not supported or consists of a single port, for example an end-station, there are - 3Com 3C15500 | User Guide - Page 262
changed since it was first discovered and you want to change the community strings that 3Com Network Director uses so that you can continue to monitor it, or if a new device has been manually added to the 3Com Network Director map and you want to specify the community strings that should be used to - 3Com 3C15500 | User Guide - Page 263
This enables the Read and Write fields. 5 Enter the new community strings in the Read and Write sections. 6 Click OK to validate your changes. 3Com Network Director attempts to use the specified community strings to communicate with the device. If the strings provided are not accepted by the device - 3Com 3C15500 | User Guide - Page 264
260 CHAPTER 6: VIEWING DEVICE DETAILS Figure 117 Security Tab for a Device - 3Com 3C15500 | User Guide - Page 265
the new community strings to communicate with the device. Changing the community strings for a device only changes the community strings that 3Com Network Director uses to communicate with the device, it does not change the community strings on the device itself. Changing the Monitoring Settings - 3Com 3C15500 | User Guide - Page 266
the Retry and Timeout Settings for a Device or Subnet The retry and timeout settings for a device allow you to tune the communications between 3Com Network Director and the device so that they can cope with slow or unreliable links. For example, a slow WAN link may require higher timeout settings - 3Com 3C15500 | User Guide - Page 267
Retry/Timeout tab of the Properties dialog box The use of retry and timeout settings in your network, and how to change them, is covered in detail in "Using 3Com Network Director On A Multi-Site Network" on page 681. Changing the The discovery options for a subnet allow you to control the type of - 3Com 3C15500 | User Guide - Page 268
Properties dialog box. How Do I View the Properties of a Specific Port on a Device? You want to check the settings of port 5 on slot 4 of your 3Com Switch 4007. - 3Com 3C15500 | User Guide - Page 269
. 2 Select the Device > Properties menu option to launch the Properties dialog box. 3 To expand the tree and display all the ports on Slot 4 of your Switch 4007 click on the + sign beside the tree branch corresponding to Slot 4 on the left-hand pane of the dialog box. 4 Select Port 5 in the - 3Com 3C15500 | User Guide - Page 270
to communicate with these devices. To change the community strings for all devices in a subnet: 1 Click on the icon for the subnet in the 3Com Network Director map to select it. 2 Select the View > Enter Submap menu option to display the contents of the subnet. 3 Select the View > Select All menu - 3Com 3C15500 | User Guide - Page 271
Examples 267 7 Enter the new community string in the Read and Write sections. 8 Click OK to validate your changes. 3Com Network Director now uses the community strings you specified to communicate with the selected devices. Figure 123 Security Tab for Multiple Devices - 3Com 3C15500 | User Guide - Page 272
How Do I Find the Version of the Agent Software on a 3Com Device? You want to check the version of the software running on your 3Com switch. To see the software version running on your switch: 1 Click on the icon for the switch in the 3Com Network Director map to select it. 2 Select the Device - 3Com 3C15500 | User Guide - Page 273
The following section provides assistance when working with device properties. Troubleshooting Some advice on errors that may occur on the system is for this is that 3Com Network Director does not support the device. For devices that are not supported by 3Com Network Director, neither unit or port - 3Com 3C15500 | User Guide - Page 274
not fully supported by 3Com Network Director: If the device is not fully supported by 3Com Network Director the necessary information cannot be collected. For these fields, 3Com Network Director shows Unknown. Ensure that the device is fully supported by 3Com Network Director. ■ The network map you - 3Com 3C15500 | User Guide - Page 275
the new properties are verified and applied. This is normal. When an IP address is assigned to a manually added device, 3Com Network Director checks whether the device is available on the network; if it is it retrieves the device name, type and other properties from the device, verifies them and - 3Com 3C15500 | User Guide - Page 276
272 CHAPTER 6: VIEWING DEVICE DETAILS - 3Com 3C15500 | User Guide - Page 277
to assist in troubleshooting when issues arise. This chapter covers the following topics: ■ Key Concepts ■ Components ■ Configuration ■ Examples ■ Key Considerations Key Concepts This section describes the key concepts associated with monitoring your network using 3Com Network Director. Monitor - 3Com 3C15500 | User Guide - Page 278
information see "Setting Thresholds for Monitor-Based Events" on page 356. Monitoring State 3Com Network Director indicates the monitoring state of each monitored device by coloring the background of its at a glance the current state of your network so that you may quickly identify trouble spots. - 3Com 3C15500 | User Guide - Page 279
Key Concepts 275 Figure 124 Example of how the Monitored State is Displayed on the Map The color of a monitored item represents the highest severity unresolved event for that item, as shown in the table below: Table 46 Map Item Color Key Color Red Yellow Green None None Description There are - 3Com 3C15500 | User Guide - Page 280
network grouped by subnet, 3Com Network Director 3Com Network Director ignores any map items or links that are visible at a higher level in the hierarchy than the submap itself.For example, the monitoring state of a router works by 3Com Network Director polling, device, 3Com Network Director can - 3Com 3C15500 | User Guide - Page 281
data retrieval is an active monitoring technique. A particular SNMP MIB-based monitor may rely upon a single MIB value or multiple MIB values.3Com Network Director optimizes its retrieval from devices so that it only retrieves those MIB values relevant to the monitors that are currently running.For - 3Com 3C15500 | User Guide - Page 282
CHAPTER 7: MONITORING THE NETWORK Service Polling 3Com Network Director provides support for monitoring the status of various services that may be provided by servers in your network, including such services as DNS, FTP, POP3 and SMTP mail.3Com Network Director monitors a service by connecting to - 3Com 3C15500 | User Guide - Page 283
3Com Devices 3Com Network Director will monitor most non-3Com network devices to some extent. However, as some non-3Com devices do not present their statistics in a standard manner, 3Com Network Director is unable to provide full monitoring support for non-3Com devices. In particular: ■ 3Com Network - 3Com 3C15500 | User Guide - Page 284
end of the link supports high-capacity RMON counters then use that end. ■ Otherwise, pick an end at random. 3Com Network Director will reassess the been selected as the data source for the link then 3Com Network Director will automatically switch across to using the device at the other end of the - 3Com 3C15500 | User Guide - Page 285
-hand side of the display to show live graphs for monitors. Poll Rates When the Live Graphs window is displayed for a particular device or link 3Com Network Director increases the poll rate for the active monitors of the device or link to every 10 seconds in order to provide you with more detailed - 3Com 3C15500 | User Guide - Page 286
Ping Service monitor, the network problem. If you launch the Live Graphs window within 10 minutes of starting monitoring against a device or link, you will only see data for the time that the device or link has been monitored. When you stop monitoring against a device or link, 3Com Network Director - 3Com 3C15500 | User Guide - Page 287
a configurable threshold associated with it that represents an abnormal, or high, state for that monitor.For multi-state monitors, 3Com Network Director also automatically determines an appropriate warning threshold for the monitor.These thresholds are used mainly for event generation: if a monitor - 3Com 3C15500 | User Guide - Page 288
284 CHAPTER 7: MONITORING THE NETWORK Figure 127 Displaying Thresholds for Live Graph With Below-Threshold Values (Forcing display of Thresholds and Not Forcing display of Thresholds) If a graph does include - 3Com 3C15500 | User Guide - Page 289
Components 285 Some items in the toolbar are not always applicable.When this is the case, the toolbar button is grayed out. Hovering the mouse cursor over a button in the toolbar causes a tooltip for that button to be displayed. The tooltip describes the operation associated with the button. The - 3Com 3C15500 | User Guide - Page 290
286 CHAPTER 7: MONITORING THE NETWORK Table 49 Live Graphs - View Menu Menu Item Display thresholds Hot Key Operation Toggles the forcing of the display of scaling of the monitors' mini- - 3Com 3C15500 | User Guide - Page 291
monitor is monitoring, details the current state of the monitor and, if the monitor is in an abnormal state, describes what may be causing the problem and potential resolutions. Clicking the blue underlined title of the monitor in the main body of text will bring the Live Graphs window that the - 3Com 3C15500 | User Guide - Page 292
288 CHAPTER 7: MONITORING THE NETWORK Figure 130 Detailed Graph The dialog box consists of the detailed graph, shown at the top, and a section containing view options beneath. The color of - 3Com 3C15500 | User Guide - Page 293
Figure 131 Component Values Fields Components 289 Showing Thresholds The Display Options section, which is displayed on the right-hand side when the Data to Graph section is displayed, contains two options for controlling the display of the graphs: Show threshold for... and Show plot points. The - 3Com 3C15500 | User Guide - Page 294
highlights the values on the graph that represent the actual retrieved values from the device by drawing a symbol on each of these points. 3Com Network Director draws the complete graph by linking each of these points using straight lines. In some cases, for example, if you have configured a large - 3Com 3C15500 | User Guide - Page 295
Figure 134 Graph Save As... Dialog box Components 291 Zooming into a Graph Left-clicking or right-clicking on a graph and dragging the mouse produces a highlighted area. When you release the mouse, the graph zooms in to show your highlighted area in more detail. - 3Com 3C15500 | User Guide - Page 296
292 CHAPTER 7: MONITORING THE NETWORK Zooming in: Figure 135 Selecting Area for Zoomed in Graph View After zooming in: Figure 136 Zoomed in Graph View - 3Com 3C15500 | User Guide - Page 297
graph to its original unzoomed state. Poll Rates When the Detailed Graph dialog box is displayed for any monitor on a particular device or link 3Com Network Director increases the poll rate for the active monitors of that device or link to every 10 seconds in order to provide you with more detailed - 3Com 3C15500 | User Guide - Page 298
Monitoring from the main menu or Stop Monitoring from the right-click menu instead. When you stop monitoring for a device or link, 3Com Network Director clears the stored history for that item's monitors and automatically resolves any unresolved events for that item that were generated by active - 3Com 3C15500 | User Guide - Page 299
Configuration 295 When a monitor is disabled the text Switched Off will be displayed over the monitor.In the Live Graphs window the graph is otherwise blank: Figure 137 Disabled Monitor Screen In the Detailed - 3Com 3C15500 | User Guide - Page 300
such as routers and layer-3 switches, inherit 3Com Network Director can monitor your network, each of which generates a different amount of network traffic.By selecting different monitoring modes you can control the amount of generated traffic.There are four basic monitoring modes that are supported - 3Com 3C15500 | User Guide - Page 301
Response Monitoring: In response monitoring mode 3Com Network Director only enables the IP Ping Service monitor for a device.All other from the device.As there are no active monitors used in this mode, 3Com Network Director itself will generate no traffic for a device in this mode.However, there - 3Com 3C15500 | User Guide - Page 302
two different poll rates, one for core devices, such as routers, switches and hubs, and one for non-core devices, such as end stations. It is not possible to change the poll rates when automatic monitoring mode is used. 3Com Network Director will automatically configure the poll rates based upon the - 3Com 3C15500 | User Guide - Page 303
to use full monitoring mode for.All other devices will be monitored using the response monitoring mode.In automatic monitoring mode 3Com Network Director automatically controls the Monitoring global defaults settings. If Use automatic monitoring is not selected then the monitoring mode and poll rate - 3Com 3C15500 | User Guide - Page 304
300 CHAPTER 7: MONITORING THE NETWORK Specifying Monitoring Mode and Poll Rates at the Subnet Level You can only change the monitoring type and poll rate settings for a subnet if you - 3Com 3C15500 | User Guide - Page 305
Configuration 301 Specifying Monitoring Mode and Poll Rates at the Device Level You can only change the monitoring type and poll rate settings for a device if you are not using automatic monitoring mode for the whole map.If you are not using the automatic monitoring mode and wish to change these - 3Com 3C15500 | User Guide - Page 306
that are currently in the No monitoring mode will revert to their previous settings. Specifying Monitoring Mode in the Discovery Wizard In the Network Discovery wizard, after selecting the discovery type and, optionally, subnets, the Monitor Core Devices and Links pane is displayed. If you are using - 3Com 3C15500 | User Guide - Page 307
have monitoring disabled, and so will be in No monitoring mode. Poll rates cannot be specified within the Monitoring pane of the Network Discovery wizard. Newly discovered subnets and newly discovered core devices in existing subnets will have their poll rates initialized to match the current - 3Com 3C15500 | User Guide - Page 308
time to respond, or the traffic being discarded by the network. If monitoring data is not received in time, or is lost, then 3Com Network Director may assume incorrectly that there are problems on your network. 3Com Network Director avoids this by allowing you to configure the retry periods and - 3Com 3C15500 | User Guide - Page 309
Configuration 305 register to receive SNMP traps from supported devices option from the Monitoring tab of the Tools > Options dialog box: Figure 143 Monitoring Tab of Tools > Options Dialog Box : Unchecking this option will prevent 3Com Network Director from registering with devices from this point - 3Com 3C15500 | User Guide - Page 310
you no longer wish 3Com Network Director to receive traps from a non-3Com device then you will need to manually remove the IP address of the PC that 3Com Network Director is running on from the trap destination table of that device. Please refer to the device's own user guide for details on how to - 3Com 3C15500 | User Guide - Page 311
you do not wish to maintain monitor histories at all then you can uncheck the checkbox for the Maintain monitor history for: setting. 3Com Network Director will then only keep the two most recent monitor states for each monitor. Decreasing the time period for which history is maintained will reduce - 3Com 3C15500 | User Guide - Page 312
to start monitoring on all of the core devices in your network. 1 In the main window, select Edit > Select All Core Devices.All of the core devices in your network are selected. 2 Select Monitoring > Start Monitoring. 3Com Network Director will start monitoring on all of the core devices in your - 3Com 3C15500 | User Guide - Page 313
Examples 309 3 Select Monitoring > Stop Monitoring. 3Com Network Director will stop monitoring all of the devices and links in your network. Configuring Monitoring for a Remote Office You have turned off automatic monitoring mode, and are configuring monitoring in order to reduce the monitoring - 3Com 3C15500 | User Guide - Page 314
310 CHAPTER 7: MONITORING THE NETWORK Figure 148 Properties Dialog Box for a Subnet 3 Uncheck the Use defaults from Tools > Options dialog box option.This allows you to set the monitoring mode and poll rate options for the subnet: - 3Com 3C15500 | User Guide - Page 315
Examples 311 Figure 149 Use Defaults Option in Tools > Options Dialog Box 4 Ensure that the Full monitoring mode is selected. 5 Edit the poll rates for the core devices and non-core devices, setting them to 300 and 600 seconds respectively: - 3Com 3C15500 | User Guide - Page 316
312 CHAPTER 7: MONITORING THE NETWORK Figure 150 Poll Rates in Tools > Options Dialog Box 6 Close the Properties dialog box by clicking OK. - 3Com 3C15500 | User Guide - Page 317
Examples 313 Extending the Length You have found that the default 10-minute history does not provide you of Maintained with enough information for your purposes, and wish to extend it to 30 Monitor History minutes. 1 Launch the Tools > Options dialog box and select the Logging tab: Figure 151 - 3Com 3C15500 | User Guide - Page 318
displayed in the Live Graphs window and the Detailed Graph dialog box may sometimes have text displayed across them.This text is displayed when 3Com Network Director has no current monitoring state for the monitor.The following text may appear: Waiting...The monitor has just been started, and is in - 3Com 3C15500 | User Guide - Page 319
. Switched Off 3Com Network Director will attempt to monitor several services on these devices, such as FTP and HTTP, most of which may not be supported network, so may be safely ignored. Problems Starting Monitoring for a Device or Link There are some devices and links that 3Com Network Director - 3Com 3C15500 | User Guide - Page 320
to represent logical connectivity between devices and subnets.They do not correspond directly to an attribute on a network device, and so cannot be monitored. If 3Com Network Director cannot start monitoring on a selected item or items, you will see an information dialog box like the following - 3Com 3C15500 | User Guide - Page 321
Figure 153 Error Message Dialog Box Key Considerations 317 Click on the Next and Back buttons to see detailed information on each problem item. - 3Com 3C15500 | User Guide - Page 322
318 CHAPTER 7: MONITORING THE NETWORK - 3Com 3C15500 | User Guide - Page 323
describes the events system that is used within 3Com Network Director to provide a constantly updated log of activity on your network. The events system can be used to view and take action on abnormal network conditions before they cause problems. It offers powerful filtering tools to allow you - 3Com 3C15500 | User Guide - Page 324
generated, depending upon the source that was used to generate the event. These are: ■ monitor-based events ■ SNMP trap-based events ■ 3Com Network Director internal events Monitor-Based Events Monitor-based events are generated as a result of an active monitor for a device or link entering a state - 3Com 3C15500 | User Guide - Page 325
a certain level. For more information on SNMP traps, see "Controlling SNMP Trap Filtering" on page 354. 3Com Network Director Internal Events When you perform certain operations within 3Com Network Director, such as an Agent Upgrade or Backup, an event will be generated when the operation has - 3Com 3C15500 | User Guide - Page 326
action to reduce the likelihood of a problem occurring. Warning severity is also used for 3Com Network Director internal events that indicate the failure of a major disruption to telephony services on your network. Voice network impacted The Voice network impacted event is only generated when - 3Com 3C15500 | User Guide - Page 327
, as far as 3Com Network Director can deduce, still occurring. Unresolved events allow you to see the outstanding abnormal network conditions that may be your network, which can help your awareness of problems that arise on a regular basis and allow you to see emerging patterns of network behavior. - 3Com 3C15500 | User Guide - Page 328
outnumber other events, making it difficult to determine the real problems in your network. The recurring event handler helps avoid this situation by determining to resolve than non-recurring events as 3Com Network Director waits to ensure that no further events of the same type and - 3Com 3C15500 | User Guide - Page 329
is generated for a device or link. Alerts can be used to keep you up-to-date with the state of your network when you are not at the PC running 3Com Network Director, to automatically perform operations when events occur, or simply to inform you of a new event if you are not currently viewing - 3Com 3C15500 | User Guide - Page 330
window on screen at one time, each with a different filter. This section describes the how to use the Events window in 3Com Network Director to view the events for your network. Launching the Events The Events window can be launched in three ways from the map, each of Window which affects the - 3Com 3C15500 | User Guide - Page 331
"Filter Dialog Box" on page 339 for more information on the available filtering options and "Deleting Events" on page 335 for more details on how 3Com Network Director handles the deletion of events. If you are launching the Events window to view all of the events logged for the map and you already - 3Com 3C15500 | User Guide - Page 332
column will show Not applicable. The name of the item that the event was generated for. Type If the event is a 3Com Network Director internal event then this column will show Network. If this event was generated for a specific device then this column will show the type of that device. Description - 3Com 3C15500 | User Guide - Page 333
Events List Components 329 Shift+ left click to add a set of rows to, or remove them from, the selection. Right-clicking on an event launches a menu that provides access to the most commonly used event management tools. Some items in the right-click menu are not always applicable. When this is - 3Com 3C15500 | User Guide - Page 334
Refresh F5 Stop Table 56 Event Menu on Event Menu Item Hot Key Comment More Detail Operation Resolves the currently selected events. See"Manually Resolving Events" on page 334. Marks the currently selected events as deleted. See "Deleting Events" on page 335. Marks the currently selected events - 3Com 3C15500 | User Guide - Page 335
Events List Components 331 Change Thresholds Disable this Event Attach Alerts Advanced Go to Table 57 Settings Settings Menu Item Hot Key Advanced Disabled Events Ageing Table 58 Help Menu Help Menu Item Hot Key Contents and Index Help on this F1 window About Launches the Threshold Settings dialog - 3Com 3C15500 | User Guide - Page 336
, the total number of events in the database. Working With Events Events may be used in many ways within 3Com Network Director, providing a powerful tool for network management. The following sections provide details of various operations that you may perform with events to obtain the most benefit - 3Com 3C15500 | User Guide - Page 337
event in the map, select the event and then select Event > Goto. 3Com Network Director locates and selects the event source in the map, if necessary changing the that were taken to resolve the event, reasons why the event was manually resolved or any other information that is useful. To add or edit - 3Com 3C15500 | User Guide - Page 338
the selection in the normal way, and this will not affect the comments for any other events that were in the multiple selection. Manually Resolving Events Other than the Trap: Link is unavailable event, 3Com Network Director is unable to automatically resolve SNMP trap-based events. This means that - 3Com 3C15500 | User Guide - Page 339
action that should resolve a recurring event. Rather than waiting for 3Com Network Director to determine whether or not the event is resolved, you can manually resolve the event. If the event is still not resolved then 3Com Network Director will log a new event when it next detects the abnormal - 3Com 3C15500 | User Guide - Page 340
logged that match the filter configured for the window, the event is automatically added to the list. As a result it is not normally necessary to manually refresh the Events list. However, if you have a large number of events in the events database then the initial population of the table when you - 3Com 3C15500 | User Guide - Page 341
Events List Components 337 If you have stopped an update and later wish to ensure that you are viewing all of the events that match the filter, select View > Refresh. This will refresh the Events list from the events database. Exporting the Events List to a CSV Format File The Events window - 3Com 3C15500 | User Guide - Page 342
: Table 59 Wildcards Used in Find Operations Wildcard Matches Example * 0 or more unspecified t*w characters ? A single unspecified t?a character Example Matches Network Created new map Trap: Authentication failure Not applicable Once you have entered the search text you may search the - 3Com 3C15500 | User Guide - Page 343
reached the search will start again from the end of the list. The search is not case sensitive. So, for example, entering NETWORK would find NETWORK, Network or even NeTwOrK. To close the Find dialog box, click Close. You may continue to use the normal operations of the Events List while the Find - 3Com 3C15500 | User Guide - Page 344
340 CHAPTER 8: THE EVENT LOG Figure 160 Filter Dialog Box Filter options cannot be changed for an Events window if it was launched using the What's Wrong right-click menu option for a selection. You may filter on any combination of the fields. Name Filter This field filters for events that were - 3Com 3C15500 | User Guide - Page 345
or link. The list of items only includes those devices and links that events have been generated for, along with a special entry, Network, for 3Com Network Director internal events. Multiple items may be selected in the same manner as multiple events may be selected in the Events list. Show only - 3Com 3C15500 | User Guide - Page 346
342 CHAPTER 8: THE EVENT LOG The default is All, and no events are filtered based upon severity. If you select a specific severity then only events with that severity will be displayed in the Events list. Last number of days Filter This field filters the events by time. This filter works in numbers - 3Com 3C15500 | User Guide - Page 347
the Description containing text: field will automatically select the Description containing text: option. The Description containing text: field does not support wildcard characters. Comment Filter This field allows you to filter for events that have specific text within their comment, and performs - 3Com 3C15500 | User Guide - Page 348
344 CHAPTER 8: THE EVENT LOG Table 60 Events Window Filter Status Bar Details Text Description Filtering There is no filtering in effect. The Events list is showing every event that off has been logged. Name The events have been filtered on name, and so only events for the selected items are - 3Com 3C15500 | User Guide - Page 349
when the event was generated, describes what has caused the problem and provides potential resolutions. Clicking the blue underlined title of select the monitor within that dialog box. SNMP trap-based events: If 3Com Network Director was able to interpret the SNMP trap when it was received then the - 3Com 3C15500 | User Guide - Page 350
about the raw content of the trap. If you know the format of an SNMP trap that 3Com Network Director is unable to interpret then you may configure 3Com Network Director with this information. 3Com Network Director will then be able to interpret the trap if it receives it again. See Appendix F for - 3Com 3C15500 | User Guide - Page 351
Events List Components 347 Figure 163 More Detail Dialog Box Graph Tab The Graph tab works in a similar manner to the Detailed Graph dialog box for a monitor (see "Detailed Graph Dialog Box" on page 287 for details of this). However, there are a few differences worth noting: ■ The Graph tab displays - 3Com 3C15500 | User Guide - Page 352
differing levels of decode: Numerical decode: Object identifiers are shown using their numerical values. For example: 1.3.6.1.4.1.43.10.22.2.1.4.1.7.0.4.11 Full name decode: 3Com Network Director translates the object identifiers from their numerical values to their text equivalents as far as it - 3Com 3C15500 | User Guide - Page 353
, only the right-most successfully translated object identifier and any untranslated identifiers following this are shown. Using the example from above, 3Com Network Director is able to translate as far as translating 10 to generic. It then strips off the preceding iso.org.dod.internet.private - 3Com 3C15500 | User Guide - Page 354
items that are currently in the map, but also disables them for any items that may be added to the map in future through network discoveries or manual map changes. Disabled Events Dialog Box The disabled events can be viewed and can also be re-enabled by selecting Settings > Disabled Events. This - 3Com 3C15500 | User Guide - Page 355
Event System Configuration 351 The Disabled Events dialog box also allows you to change the items that an event is disabled for. To do this, select the event that you wish to change and click Change Selection. This then gives two options: Selected devices/links: This option allows you to select the - 3Com 3C15500 | User Guide - Page 356
for was generated by a device then the Find dialog will allow you to search for Devices and NBX telephony components. See "Finding Items on Your Network" on page 192 for more information. To remove items from the selection, select the items that you wish to remove and click Remove. Changed to - 3Com 3C15500 | User Guide - Page 357
Event System Configuration 353 depending upon your management requirements, it may be desirable to see the unfiltered and uninterpreted events. 3Com Network Director allows you to select which features of Smart Event Analysis are enabled on a global basis and, for recurring event handling and event - 3Com 3C15500 | User Guide - Page 358
by toggling their respective check boxes. 3Com Network Director will not register itself as an SNMP trap destination with devices that are not in the map. If you wish 3Com Network Director to receive SNMP traps from a device that is not in the map then you will need to manually add the IP address - 3Com 3C15500 | User Guide - Page 359
a device that is not in the map then you will need to manually remove the IP address of the PC that 3Com Network Director is running on from the trap destination table of that device. Please refer to the device's user-guide for details of how to do this. Controlling Per-Event Advanced Settings To - 3Com 3C15500 | User Guide - Page 360
3Com Network Director allows you to configure the high threshold for multi-state monitors and then automatically determines a suitable setting for the warning threshold, based upon the configured high threshold and the type of monitor. The warning threshold cannot be manually - 3Com 3C15500 | User Guide - Page 361
Event System Configuration 357 ■ From within the Live Graphs window, select the monitor that you wish to change the thresholds for and select Monitor > Change thresholds. See "Live Graphs Window" on page 280 for further information. ■ From within the More Details dialog box for the monitor that you - 3Com 3C15500 | User Guide - Page 362
358 CHAPTER 8: THE EVENT LOG Figure 170 Threshold Settings Dialog Box There are three ways in which the high threshold can be changed: Sensitivity: The sensitivity slider allows you to adjust how sensitive the monitor is to high values. Increasing the sensitivity will reduce the threshold and so - 3Com 3C15500 | User Guide - Page 363
of the Sensitivity slider will revert back to the default range of 10 minutes to 1440 minutes. Use Suggested Settings: For most monitor types, 3Com Network Director can suggest threshold values for you to use based on the monitor type. and on the events that have been previously generated by the - 3Com 3C15500 | User Guide - Page 364
of the same type that may be added to the map in future through network discoveries or manual map changes. Configuring the Storage of Monitoring History for Events For monitor-based events 3Com Network Director, by default, stores a 10-minute history of the monitor state both before and after - 3Com 3C15500 | User Guide - Page 365
Decreasing the time period that historical data is stored for will reduce the size of the event log and therefore the disk space used by 3Com Network Director on your PC. If you do not wish to store monitoring state histories at all for events then you can clear the check box for - 3Com 3C15500 | User Guide - Page 366
362 CHAPTER 8: THE EVENT LOG The process is controlled by two configurable parameters: ■ The maximum number of days to keep events for. ■ The maximum number of events to keep. When the ageing process runs it uses these parameters to determine what events to permanently remove from the events - 3Com 3C15500 | User Guide - Page 367
Event System Configuration 363 The event ageing process can only run overnight if 3Com Network Director is running overnight. If you close 3Com Network Director every evening then the event ageing process will only ever be run if you click OK in the Ageing dialog box. See "Ageing Dialog Box" - 3Com 3C15500 | User Guide - Page 368
run with your new settings. This may result in events being permanently removed from the events database. If you do not normally leave 3Com Network Director running overnight and you still wish to restrict the size of your events database using the ageing process then you should launch the Ageing - 3Com 3C15500 | User Guide - Page 369
Alert System Components 365 To launch it from the Main Window, select the items that you wish to view the attached alerts for, or attach alerts to, and then select Alerts/Events > Attach Alerts. To launch it from the Events window, select events generated by the items that you wish to view the - 3Com 3C15500 | User Guide - Page 370
's action will only be successfully performed if you have a correctly configured sound card and suitable speakers or headphones on the PC running 3Com Network Director. Configuring Alerts Alerts can be created, modified and deleted from within the Setup Alerts dialog box, launched by clicking Set Up - 3Com 3C15500 | User Guide - Page 371
these tokens are replaced by the values they represent. This allows you to configure dynamic alert messages. The Alerts System supports the following tokens: Table 61 Alert System Tokens Token $date$ $time$ $device$ $ipAddr$ $event Severity$ $event Description$ $event Explanation$ Replaced - 3Com 3C15500 | User Guide - Page 372
368 CHAPTER 8: THE EVENT LOG Figure 175 Sample Pop-up Alert If this alert was attached to a device, and an event was generated for that device due to high utilization then the following pop-up would appear on screen: - 3Com 3C15500 | User Guide - Page 373
Trap alerts, in the Arguments: field of Application alerts and in the Subject: field of E-mail and Pager alerts. They are not supported in any other fields. If you manually type a token in an unsupported field then it will not be replaced with the dynamic value when the alert is generated, and - 3Com 3C15500 | User Guide - Page 374
in troubleshooting. Viewing the Unresolved Events for a Subnet You are viewing the devices in your network grouped by subnet and are viewing the top-level map. One of the subnets that you are monitoring has just changed color from green to red. You wish to determine what the problem - 3Com 3C15500 | User Guide - Page 375
Last Week You wish to build up a database to help determine problem trends in your network. To do this you decide to use undeleted high severity events as an indication of the trends, and need to export them from 3Com Network Director so that you may import them into your database. 1 Launch the - 3Com 3C15500 | User Guide - Page 376
372 CHAPTER 8: THE EVENT LOG Figure 179 Filter Dialog Box - 7 Days of High Severity 5 Click OK to close the Filter dialog box and update the events in the Events List to match the filter: - 3Com 3C15500 | User Guide - Page 377
Figure 180 Events Window - Filtered Results Examples 373 6 Select File > Export as CSV. 7 Ensure that Use current filter is selected and click OK. 8 Select the file that you wish to export to and click Save. You may now import the exported events into your database. Undeleting an Event You have - 3Com 3C15500 | User Guide - Page 378
374 CHAPTER 8: THE EVENT LOG Figure 181 Filter Dialog Box - Show 3 Click OK to close the Filter dialog box and update the events in the Events window to match the filter: - 3Com 3C15500 | User Guide - Page 379
Figure 182 Events Window - Updated Examples 375 4 Locate the event that you wish to retain in the Event list and select it: Figure 183 Events Window - Select Event 5 Select Edit > Undelete. This clears the deletion mark for the event: - 3Com 3C15500 | User Guide - Page 380
information from the service monitoring application into the 3Com Network Director events system. 1 Add the IP address of the PC running 3Com Network Director to the SNMP trap destination table of the service monitoring application. Refer to the user guide of your service monitoring application for - 3Com 3C15500 | User Guide - Page 381
Advanced Settings dialog box by clicking OK. If you know the format of the SNMP traps that the service monitoring application can generate then you may wish to configure 3Com Network Director with this information so that it can interpret them correctly. After clearing the Discard all traps received - 3Com 3C15500 | User Guide - Page 382
increases to very high levels for very short periods of time before returning to low levels. These spikes are not indicative of a network problem, but are normal behavior. Disabling event suppression will result in events being generated for all such spikes. Receiving Notification When A Server - 3Com 3C15500 | User Guide - Page 383
Examples 379 24-hours a day. You wish to receive pager messages whenever there is a problem with the farm to minimize the impact these may have. 1 Select the servers that are members of the server farm in the map or tree. 2 - 3Com 3C15500 | User Guide - Page 384
380 CHAPTER 8: THE EVENT LOG 6 Close the Add Alert dialog box by clicking OK to add the alert and return to the Set Up Alerts dialog box. The Server Farm Alert will now be visible in the list: Figure 188 Set Up Alerts Dialog Box 7 Close the Set Up Alerts dialog box by clicking OK to complete the - 3Com 3C15500 | User Guide - Page 385
Figure 189 Attach Alerts Dialog Box Examples 381 - 3Com 3C15500 | User Guide - Page 386
OK. This attaches the alert to the server farm devices. Key Considerations The following section provides assistance when using the events system within 3Com Network Director. No Events in the There are various reasons why there may be no events visible in the Events List events list: Events List - 3Com 3C15500 | User Guide - Page 387
. See "Filter Dialog Box" on page 339. No Graph Available In order for graphs to be generated for monitor-based events, 3Com for an Event Network Director must be configured to both maintain monitor histories and store historical monitor state before and after events. If you disable either of these - 3Com 3C15500 | User Guide - Page 388
Tab Graphs are only generated for monitor-based events. If you launch the More Detail dialog box for an SNMP trap-based event or a 3Com Network Director internal event then there will be no Graph tab, regardless of whether or not the storing of historical data before and after events is enabled - 3Com 3C15500 | User Guide - Page 389
This chapter describes the logging and reporting of data within 3Com Network Director. 3Com Network Director uses monitoring to track the health of your network and spot problems as they occur. One of the functions performed by 3Com Network Director is to collect this monitored data and log it to - 3Com 3C15500 | User Guide - Page 390
resolutions 3Com Network Director maximizes the usefulness of collected data by supporting a 3Com Network Director presents long-term data in the form of historical HTML reports that display data collected over time in graphs, allowing you to analyze trends in your network and identify problems - 3Com 3C15500 | User Guide - Page 391
Figure 193 Historical Report Example: Components 387 The historical report is an HTML report showing graphs for collected data for the applicable item at each different resolution. The resolutions used are as follows: - 3Com 3C15500 | User Guide - Page 392
its data in CSV (comma-separated value) format. To do this, click the appropriate hot-link below the graph. This will launch a dialog within 3Com Network Director allowing you to select the location of the exported data. When this dialog is closed, the browser window will update to show the result - 3Com 3C15500 | User Guide - Page 393
None None None None Comments For 3Com Switch 4400/4900 performing Web cache redirection. For 3Com Wireless AP 8000 For 3Com Wireless AP 8000 For 3Com Wireless AP 8000 Link monitors Depending on the capabilities of the devices involved in a link, 3Com Network Director will sometimes use a MIB-II - 3Com 3C15500 | User Guide - Page 394
Errors (RMON) Link availability Collisions In and out error For links for which 3Com Network Director packets uses the MIB-II ifTable as a data source. Fragments Jabbers For links for which 3Com Network Director uses RMON etherStats as a data source. CRC Align Undersize packets All sub-graph - 3Com 3C15500 | User Guide - Page 395
Located in this directory is a file called mapping.txt. This CSV file contains an entry for every device or link that has been monitored by 3Com Network Director now, or in the past. You can use this file to locate the database for a given device or link. The mapping file format is described - 3Com 3C15500 | User Guide - Page 396
These database files are never automatically removed by 3Com Network Director, though the file size is allocated on the same report. Predicting demand You have been asked to provide estimates for required network upgrades for bandwidth over the coming months. To do this: requirements 1 Select - 3Com 3C15500 | User Guide - Page 397
Examples 393 5 Repeat steps 1 - 4 for each of your core links. Using these graphs you can see the trend of link utilization over the past two years. This should help you estimate how utilization will continue to develop in the near future. If you need to perform a more detailed trend analysis for a - 3Com 3C15500 | User Guide - Page 398
394 CHAPTER 9: PERFORMANCE REPORTING Figure 197 Daily Graph of HTTP Response Time In this example over the course of two days, demand on your Web server is spiky, but most of the time it is within acceptable levels. You feel that at its current levels, performance is acceptable, but any increase in - 3Com 3C15500 | User Guide - Page 399
contains an entry for every device or link that has been monitored by 3Com Network Director now, or in the past. The format for the mapping file is as -00-4e-0b-d2-84.rrd, 08-00-4e-0b-d2-84 Links between switches/hubs , , Example 0/1/08-00-4e - 3Com 3C15500 | User Guide - Page 400
is moved from one port to another. ■ Data for the connection between the two switches is retained. Database file format Data gathered by 3Com Network Director is held in RRDTool round robin databases. See "Database" on page 391 for further details. These files may be accessed directly via the - 3Com 3C15500 | User Guide - Page 401
00-4e-0b-d2-84.rrd to XML format and store it in the file RouterHistory.xml in the 3Com Network Director installation directory, run the following command from within the 3Com Network Director installation directory: bin\rrdtool dump logging\0\1\08-00-4e-0b-d2-84.rrd > RouterHistory.xml Each round - 3Com 3C15500 | User Guide - Page 402
398 CHAPTER 9: PERFORMANCE REPORTING Monitor Utilization Utilization - Octets Utilization - Packets Utilization - In Octets Utilization - Out Octets Utilization - In Packets Utilization - Out Packets Broadcast (Non-unicast Packets) Broadcast -Broadcast Packets Broadcast - Multicast Packets Link - 3Com 3C15500 | User Guide - Page 403
, or have not been monitored for a long time. Key Considerations Troubleshooting Mapping file not updating If you have the mapping file opened in an editor, or are reading it via a script, this may cause the file to lock, and 3Com Network Director may be unable to update it. If this occurs you - 3Com 3C15500 | User Guide - Page 404
example, if a monitored end station does not have an FTP server running on it, the data source for FTP will never record any data. ■ 3Com Network Director may use data gathered using RMON or MIB-II datasources depending on the capabilities of devices at either end of the link. Sometimes RMON does - 3Com 3C15500 | User Guide - Page 405
no IP address, and so cannot be monitored. ■ A link has no port information at both ends, and so cannot be monitored. Further information on monitoring problems can be found in "Problems Starting Monitoring for a Device or Link" on page 315. - 3Com 3C15500 | User Guide - Page 406
402 CHAPTER 9: PERFORMANCE REPORTING - 3Com 3C15500 | User Guide - Page 407
10 RMON Introduction This chapter describes 3Com Network Director support for the RMON standard. This chapter covers the following topics: ■ Key Concepts ■ Components ■ Examples ■ Useful Information And References ■ Key Considerations - 3Com 3C15500 | User Guide - Page 408
404 CHAPTER 10: RMON Key Concepts The following section describes the key concepts of RMON and the support provided by 3Com Network Director. What is RMON RMON (Remote Monitoring) is a network management standard that allows a centralized management application to gather information about the - 3Com 3C15500 | User Guide - Page 409
allows you to monitor the current activity of each individual device on your network. It augments the Statistics view, allowing you to drill down to identify which particular host is responsible for a more generalized problem. HostTopN The HostTopN group presents the same data as the Host group, but - 3Com 3C15500 | User Guide - Page 410
configured by default on each interface, so that a management station such as 3Com Network Director can immediately see basic network information without having to pre-configure the device. For example, it is normal for network devices to create a Statistics table and at least one History table on - 3Com 3C15500 | User Guide - Page 411
Components 407 Components The following section describes the RMON support components provided by 3Com Network Director. 3Com support for RMON Most 3Com network devices support the most commonly used five groups of RMON. 3Com Network Director allows you to configure and gather information from - 3Com 3C15500 | User Guide - Page 412
408 CHAPTER 10: RMON Figure 199 RMONView Window The RMONView window is divided into four main areas: ■ The menu bar ■ The toolbar ■ The table view ■ The graph view The Menu bar The following tables list each menu item for the menu bar and the associated operation invoked by selecting it. File - 3Com 3C15500 | User Guide - Page 413
Components 409 Menu Item Print Setup Export Exit Hot Key Operation Allows you to set printing options Allows you export the contents of the currently displayed table to ASCII, CSV, Excel and HTML format files Closes the RMONView window View menu Table 69 lists each menu item for the View menu - 3Com 3C15500 | User Guide - Page 414
this menu item clears any flags from a graph. Pauses the refreshing of data in the graph view. Note that if Auto Upload is running or Manual Update is selected, the data is still uploaded from the device, but the display in the graph view is not refreshed until Resume Graphing is - 3Com 3C15500 | User Guide - Page 415
Values > Delta Address Translation > Custom Name Operation Toggles Manual Upload on/off. If Manual Update is enabled, data is not retrieved from the level used for all views in RMONView to Custom Name. 3Com Network Director will attempt to display the custom names corresponding to addresses in - 3Com 3C15500 | User Guide - Page 416
"Map Item Labels and Address Translation" on page 175 Sets the address translation level used for all views in RMONView to System Name. 3Com Network Director will attempt to display the system names corresponding to addresses in the host and matrix views. See "Map Item Labels and Address Translation - 3Com 3C15500 | User Guide - Page 417
in the 3Com Network Director main window when the Translate MACs option is enabled in the Tools > Options dialog box. 3Com Network Director will attempt Update Data Hot Key Operation This option is enabled only when Manual Update is on. Selecting this option initiates a data retrieval from - 3Com 3C15500 | User Guide - Page 418
414 CHAPTER 10: RMON Window menu This menu contains standard Windows options for rearranging windows. lists each menu item for the Windows menu and the associated operation invoked by selecting it.Windows Menu Menu Item Cascade Tile Arrange Icons View List Hot Key Operation Resizes and arranges - 3Com 3C15500 | User Guide - Page 419
Figure 200 Toolbar Buttons Components 415 Some items in the toolbar are not always applicable. When this is the case, the toolbar button is grayed out. Hovering the mouse cursor over a button in the toolbar causes a tooltip for that button to be displayed. The tooltip describes the operation - 3Com 3C15500 | User Guide - Page 420
416 CHAPTER 10: RMON Menu Item Progress bar Hot Key Operation The progress bar shows the data retrieval progress for the currently selected view window, or "Pending" if the view is between retrievals. The Table View The table view displays the raw data as it is read directly from the device. The - 3Com 3C15500 | User Guide - Page 421
the right-click RMON menu against a single selected device or link on the map. The option is only available if the RMON Statistics group is supported by a selected device or by one of the devices at the ends of a selected link. Viewing RMON Statistics data for a selected device To view RMON - 3Com 3C15500 | User Guide - Page 422
on the device will be displayed. The first entry in the interface selection list will be selected by default. 3Com Switch 4007 If the selected device is a 3Com Switch 4007 a separate submenu is presented allowing selection of the slot within the chassis for which you want to view statistics - 3Com 3C15500 | User Guide - Page 423
Components 419 Figure 203 RMON > Statistics > Slot 5: 36 Port 10/100 L2 Switch Selecting one of these menu options launches "The Statistics View dialog box", with the interface map selection is a single link lists the interfaces at each end of the link which support the RMON Statistics group. - 3Com 3C15500 | User Guide - Page 424
420 CHAPTER 10: RMON Figure 204 RMON Statistics Data for a Selected Link Selecting one of these menu options launches "The Statistics View dialog box" as shown on page 421, with the interface list populated with the interfaces available on the chosen device. The interface associated with the chosen - 3Com 3C15500 | User Guide - Page 425
of the interfaces available on the device, allowing you to choose the interface for which you want to view the associated data. Whenever it can, 3Com Network Director will pre-select the interface in the list associated with your selection on the - 3Com 3C15500 | User Guide - Page 426
(i.e. 1 minute). Community String The Community field is initialized to the read/write community string specified for the device in the 3Com Network Director Properties dialog box. See "Viewing Device Details" on page 229 Clicking Edit launches the Edit Community dialog box, which allows you - 3Com 3C15500 | User Guide - Page 427
one instance of the RMONView window is shown by 3Com Network Director at any time. You can switch between views in the RMONView window by selecting them link on the map. The option is only available if the RMON History group is supported by a selected device, or by one of the devices at the ends of - 3Com 3C15500 | User Guide - Page 428
interface selection list will be selected by default. See "History View dialog box" on page 427 for further information. 3Com Switch 4007 If the selected device is a 3Com Switch 4007 a separate submenu is presented allowing selection of the slot within the chassis which you want to view history data - 3Com 3C15500 | User Guide - Page 429
Figure 208 Switch 4007 Specific Submenu Components 425 Selecting one of these menu options launches the History View dialog box with the interface The menu presented when the current map selection is a single link lists the interfaces at each end of the link which support the RMON History group. - 3Com 3C15500 | User Guide - Page 430
426 CHAPTER 10: RMON Figure 209 Viewing Single Link Lists Selecting one of these menu options launches the History View dialog box, with the interface list populated with the interfaces available on the chosen device. The interface associated with the chosen port will be selected by default. See " - 3Com 3C15500 | User Guide - Page 431
History View dialog box Figure 210 History View Dialog Box Components 427 - 3Com 3C15500 | User Guide - Page 432
to choose the interface which you want to view the associated data for. Whenever it can, 3Com Network Director will pre-select the interface in the list associated with your selection on the 3Com Network Director map. If you wish to change the selected interface, or customize the data shown in the - 3Com 3C15500 | User Guide - Page 433
then this list will be empty. 3Com devices generally create two standard history tables on every supported interface - one sampling every 30 box when the History Entries list is empty does not launch the 3Com Network Director RMON window, and instead shows the following message: Figure 211 Error - 3Com 3C15500 | User Guide - Page 434
, and the corresponding entry in the device's history control table. History tables use resources on a network device, and may affect its performance. Try to avoid creating history tables on network devices unnecessarily, and delete them from the device when you are finished with them. See "Managing - 3Com 3C15500 | User Guide - Page 435
the right-click RMON menu against a single selected device or link on the map. The option is only available if the RMON Host group is supported by a selected device, or by one of the devices at the ends of a selected link. Viewing RMON Host data for a selected device To view RMON - 3Com 3C15500 | User Guide - Page 436
. The first entry in the interface selection list will be selected by default. See "Host View dialog box"on page 436. 3Com Switch 4007 If the selected device is a 3Com Switch 4007 a separate submenu is presented allowing selection of the slot within the chassis which you want to view host data for. - 3Com 3C15500 | User Guide - Page 437
Components 433 Figure 215 Switch 4007 Selection of the Slot within the Chassis Viewing RMON host data for a selected link The menu presented when the current map selection is a single link lists the interfaces at each end of the link which support the RMON Host group. On 3Com devices, the Host group - 3Com 3C15500 | User Guide - Page 438
434 CHAPTER 10: RMON Figure 216 Host View Dialog Box with the VLAN Interface Preselected If the port at either end of the link is a member of multiple VLANs, the port itself is listed in the Host submenu. Figure 217 Port that is a Member of Multiple VLANs - 3Com 3C15500 | User Guide - Page 439
Components 435 Selecting a port launches the Select VLAN dialog box shown below: Figure 218 Select VLAN Dialog Box This intermediate dialog box lists all VLANs on which the selected port is a member. The dialog box allows you to select which VLAN on the device you want to view RMON Host data for. - 3Com 3C15500 | User Guide - Page 440
436 CHAPTER 10: RMON Host View dialog box Figure 219 Host View Dialog Box - 3Com 3C15500 | User Guide - Page 441
to choose the interface which you want to view the associated data for. Whenever it can, 3Com Network Director will pre-select the interface in the list associated with your selection on the 3Com Network Director map. If you wish to change the selected interface, or customize the data shown in the - 3Com 3C15500 | User Guide - Page 442
438 CHAPTER 10: RMON Predefined View Packet Definition Packets transmitted to and from each host seen by the device, including broadcast and multicast packets Sort by The selected Sort by option controls the ordering of the display of the contents of the Hosts view. There are three main sort - 3Com 3C15500 | User Guide - Page 443
own new table. Be careful when doing this - the existing tables may currently be in use by other management stations on your network, or by 3Com Network Director itself. Clicking on the OK button launches the RMONView window, showing the RMON host data associated with the selected interface on the - 3Com 3C15500 | User Guide - Page 444
the right-click RMON menu against a single selected device or link on the map. The option is only available if the RMON Matrix group is supported by a selected device, or by one of the devices at the ends of a selected link. Viewing RMON Matrix data for a selected device To view RMON - 3Com 3C15500 | User Guide - Page 445
interfaces on the device will be displayed. The first entry in the interface selection list will be selected by default. 3Com Switch 4007 If the selected device is a 3Com Switch 4007 a separate submenu is presented allowing selection of the slot within the chassis for which you want to view matrix - 3Com 3C15500 | User Guide - Page 446
442 CHAPTER 10: RMON Figure 223 Switch 4007 Separate Submenu Selecting one of these which support the RMON Matrix group. On 3Com devices, the Matrix group is generally only supported on VLANs, not on individual physical ports. For more information about RMON support on 3Com devices. See "Supported - 3Com 3C15500 | User Guide - Page 447
Figure 224 Matrix View Dialog Box Components 443 If the port at either end of the link is a member of multiple VLANs, the port itself is listed in the Host submenu. - 3Com 3C15500 | User Guide - Page 448
444 CHAPTER 10: RMON Figure 225 Host Submenu Selecting a port launches the Select VLAN dialog box shown below: Figure 226 Select VLAN Dialog Box This intermediate dialog box lists all VLANs on which the selected port is a member. The dialog box allows you to select which VLAN on the device you want - 3Com 3C15500 | User Guide - Page 449
to choose the interface for which you want to view the associated data. Whenever it can, 3Com Network Director will pre-select the interface in the list associated with your selection on the 3Com Network Director map. If you wish to change the selected interface, or customize the data shown in the - 3Com 3C15500 | User Guide - Page 450
CHAPTER 10: RMON Community String The Community field is initialized to the read/write community string specified for the device in the 3Com Network Director Properties dialog box. See "Viewing Device Details" on page 229. Clicking Edit launches the Edit Community dialog box, which allows you to - 3Com 3C15500 | User Guide - Page 451
RMON tables If you try to launch RMONView Statistics, Host or Matrix views against an interface on which these tables do not exist, 3Com Network Director gives you the option of creating these tables immediately. If the selected interface does not have the required table, the following dialog box - 3Com 3C15500 | User Guide - Page 452
table creation is successful RMONView will be launched automatically against the interface. Deletion of RMON Tables The Manage RMON tables menu option allows you to manually create or delete RMON tables on the target device. The option is available from the RMON menu on the menu bar, or from the - 3Com 3C15500 | User Guide - Page 453
SNMP community string used by default is indicated in the Community: field. This is initialized to the read/write community string specified in 3Com Network Director for the device. You can change this if you wish. See "Viewing Device Details" on page 229. Clicking Edit launches the Edit Community - 3Com 3C15500 | User Guide - Page 454
not create - they may be in use by 3Com Network Director, or by another management application on your network. Examples This section describes some RMON examples supported by 3Com Network Director. How do I graph errors on my core switch links? The RMON Statistics group contains useful error - 3Com 3C15500 | User Guide - Page 455
link as a whole. an aggregated link? Instead, data is gathered against each component physical link. If you select an aggregated link, and 3Com Network Director has knowledge of the ports which comprise that link, then all ports which are a member of that aggregation are presented on the menu. In - 3Com 3C15500 | User Guide - Page 456
RMON Support on individual 3Com devices For more information about RMON support on 3Com devices see "Supported Devices manually created. 3Com Network Director creates and uses RMON tables for basic monitoring of the network - removing these tables will adversely affect this functionality. To manually - 3Com 3C15500 | User Guide - Page 457
Overview This chapter describes the Reporting feature of 3Com Network Director. You can use the Reporting feature to obtain on-demand reports describing the 3Com devices on your network, listing attributes such as IP addresses, MAC addresses and agent software versions. You can also obtain specific - 3Com 3C15500 | User Guide - Page 458
based on the whole map. Feature Reports Types Various features within 3Com Network Director use reports to convey information. These are covered in the section Optimizations "Discovering the Network"on page 91 ■ Changes ■ Agent Audit ■ Agent Update Summary "Upgrading Device Software" on page - 3Com 3C15500 | User Guide - Page 459
"Upgrading Device Software" on page over time. However, you can manually purge the history log by deleting 3Com Network Director. 3 Delete the file called logging.mdb from this directory. 4 Make a copy of the file called emptyLogging.mdb and rename it to be called logging.mdb The above instructions - 3Com 3C15500 | User Guide - Page 460
feature. 3Com Network Director contains a large number of report types. Feature-based reports are covered elsewhere in this guide, in a stack (e.g. a Switch 3300 and Switch 1100), all unit types are listed in the Type column. Similarly, if a modular device (e.g. the Switch 4007), has several cards - 3Com 3C15500 | User Guide - Page 461
on all devices for which 3Com Network Director has port information. To gather this port information, the device needs to support SNMP. At the bottom of via the More Detail dialog box) is to move the device to a switch that supports a higher link speed and/or full duplex mode. To launch the free - 3Com 3C15500 | User Guide - Page 462
device. Devices that do not have any ports of the appropriate speed available are not included in the report. If 3Com Network Director could not obtain the speed of the ports on a switch they will not be included in this report. For reasons why this could occur, refer to the capacity report section - 3Com 3C15500 | User Guide - Page 463
Figure 233 Reports Dialog Box Components 459 Generate Report Tab From the Generate Report tab you can select any report type in the list which will update the information presented in the text panel, under the label Information included in this report. This panel displays the following: ■ Name - - 3Com 3C15500 | User Guide - Page 464
, the report is automatically produced on all items in the current map file. See "Generate Report not Working" on page 471 if you have problems generating a report. Clicking Custom Report Types launches a dialog box where you can add, edit and delete custom (that is, user-defined) report types. See - 3Com 3C15500 | User Guide - Page 465
Components 461 You can also save reports as CSV files and delete reports using this dialog box. The table of reports can be sorted by clicking on the column headers. This is useful when trying to find a particular report to view or to aid deletion of old reports, for example. It lists any reports - 3Com 3C15500 | User Guide - Page 466
462 CHAPTER 11: CREATING REPORTS Custom Report Types Dialog Box The Custom Report Types dialog box enables you to: ■ Create new custom report types ■ Edit existing custom report types ■ Delete custom report types The list shown in Figure 235, displays any custom report types already created. It - 3Com 3C15500 | User Guide - Page 467
Components 463 If you edit an existing report type, you are warned that if you change the columns used in the report type then 3Com Network Director will remove any existing reports (i.e. the reports listed in the History tabbed pane of the Reports dialog box) that were generated from that report - 3Com 3C15500 | User Guide - Page 468
, MAC address. DeviceType The type of the device, for example, 3Com Switch 3300 Extension Number The extension number of the device. This only applies of the device e.g. 01.01.01. This is usually only obtained for 3Com devices. If the hardware version is not available then N/A is displayed in - 3Com 3C15500 | User Guide - Page 469
usually only obtained for 3Com devices. If the serial number is not available, N/A is displayed in this column. The software agent version running on by an NBX call processor and devices that have logged in to the network via Network Login. If there is no user name associated with the device, N/A - 3Com 3C15500 | User Guide - Page 470
466 CHAPTER 11: CREATING REPORTS Table 81 Available Columns for 'Link Details Column Description Comment (Both ends) The comment associated with the devices at either end of the link. Device Name Gives the names of the devices at either end of link. (Both Ends) Duplex mode The duplex mode of - 3Com 3C15500 | User Guide - Page 471
Components 467 Name and Description Step You can use this step to specify the name and description of your custom report as shown in Figure 237: Figure 237 Add/Edit Report Type Wizard - Name and Description Step The name and description appears in the report when it is generated. They also display - 3Com 3C15500 | User Guide - Page 472
and you Expansion Capability want to find out if you have enough capacity in your network and to work out which 3Com devices to connect them to. You can get an assessment of how much network capacity you have by charting available ports using the Save to CSV facility in Reports, in combination - 3Com 3C15500 | User Guide - Page 473
wizard step. 11 Click on the Titles tab on this wizard step, enter Network Capacity as the chart title and click Next. 12 Choose to Place chart As showing at a glance how many ports you have free across your range of 3Com devices and where the servers could be best connected. You can also use Excel - 3Com 3C15500 | User Guide - Page 474
reported on. You can delete generated reports from the History tab of the Reports dialog box. If you have more than 500 generated reports stored, 3Com Network Director will display a warning when you launch the Reports dialog box. This is purely for information and will not affect the operation of - 3Com 3C15500 | User Guide - Page 475
to view an old report, you can use the Report History feature to view it. If you wish to use the HTML report outside of 3Com Network Director, generate the report and select File > Save As from your web browser to save the report to a location of your choice. Generate Report not Sometimes - 3Com 3C15500 | User Guide - Page 476
472 CHAPTER 11: CREATING REPORTS - 3Com 3C15500 | User Guide - Page 477
's Telnet application against a device selected in the network map. ■ Administration Menu - contains integrated add-on 3Com device management applications. ■ Registering Devices for Warranty - enables you to register the 3Com devices on your network for any applicable warranty. The following topics - 3Com 3C15500 | User Guide - Page 478
add-on 3Com device management applications3Com Network Director. These applications provide management operations specific to a particular device type. For more information please refer to the appropriate management application's manual and or online help pages. Devices that support the features - 3Com 3C15500 | User Guide - Page 479
supported by Device View, see Appendix A on page 835. 3Com Switch Manager Switch Manager is the element manager of the Switch 7700. 3Com Router Manager Router Manager is the element manger of the 3Com router family. Network Jack Configuration Manager 3Com Network with 3Com Network Director. The - 3Com 3C15500 | User Guide - Page 480
ping command is run and its output is displayed in the Output window. Trace Route The Trace Router feature enables you to run the Windows system 'tracert' utility. This utility lets you trace the router path from the management station to the device you're interested in. If the device has more - 3Com 3C15500 | User Guide - Page 481
Figure 240 Trace Route Console Dialog Box Key Concepts 477 The dialog box pre-fills the command line text box with the command 'tracert' and the IP address of the device you have selected. The command line is provided so that you can specify additional command line options to the trace route - 3Com 3C15500 | User Guide - Page 482
478 CHAPTER 12: CONFIGURING SINGLE DEVICES Properties Dialog Box The Device Properties dialog box gives you additional details on a a selected device. The details are split in to four tabs as follows: General The General tab provides name and address information for your device as shown in Figure - 3Com 3C15500 | User Guide - Page 483
two radio buttons are provided: ■ Defaults - select this option to use the community strings 3Com Network Director is using by default on all other devices. If this community string does not work, 3Com Network Director will resort to using the factory defaults for devices of that device type. - 3Com 3C15500 | User Guide - Page 484
write access gives you. Unit Information The Unit Information tab lists the various units in a stack. The individual device types, with hardware and software revision are shown in the table in Figure 243: Figure 243 Properties - Unit Information Tab You can resize the columns in the unit information - 3Com 3C15500 | User Guide - Page 485
that are members of that VLAN. If a VLAN is being used for routing, click VLAN Routing to launch a separate dialog box listing the subnets and routers that use that VLAN for routing as shown in Figure 245: - 3Com 3C15500 | User Guide - Page 486
If a VLAN is being used to constrain certain protocols the Protocol Details button is available. Click Protocol Details to launch a dialog box that lists the network protocols that are associated with the VLAN as shown in Figure 246: Figure 246 Properties - VLANs Tab - VLAN Protocol Details - 3Com 3C15500 | User Guide - Page 487
the device warranty for all the supported 3Com equipment and enables 3Com services such as technical assistance, hardware repair and hardware replacement. Components The following sections describe how to administer devices using 3Com Network Director. Device Warranty When a discovery operation - 3Com 3C15500 | User Guide - Page 488
. Or, ■ Select the Tools > Device Warranty menu option Introduction Step The Introduction step describes the various stages of the wizard and provides a hyperlink to the 3Com Privacy Statement as shown in Figure 249. - 3Com 3C15500 | User Guide - Page 489
browser. By clicking Next, you consent to the collection, processing and use of the data submitted in the Device Warranty Wizard, in accordance with the 3Com Privacy Statement. Contact Details Step The Contact Details step allows you to enter your contact information as shown in Figure 250. - 3Com 3C15500 | User Guide - Page 490
Figure 250 Contact Details Step All fields are compulsory (marked with a '*'), except the second line of the Address and the Phone Extension number 3Com Network Director retains these details for the next time you run the Device Warranty Wizard. This way, you only have to enter your contact details - 3Com 3C15500 | User Guide - Page 491
Reseller. ■ Phone - the contact phone number for your preferred 3Com Partner/Reseller. If you select the My preferred 3Com Partner/Reseller is option, the Name field cannot be left blank. Just like your contact details, 3Com Network Director retains the reseller details for the next time you run the - 3Com 3C15500 | User Guide - Page 492
Step Each row in the list corresponds to a 3Com product. If the device in the map is a stack, the list will contain one row per unit. If the network node in the map is a chassis device, Unit 2). ■ Device Type - the type of the product. By default, all supported 3Com devices are listed and selected. - 3Com 3C15500 | User Guide - Page 493
253 Summary Step The Summary step provides a summary of the warranty registration information prior to sending it to 3Com. If you consent to 3Com keeping you updated on its products you will receive 3Com product news. If you selected I am registering on behalf of the individual named above in the - 3Com 3C15500 | User Guide - Page 494
Server Click Cancel if you wish to interrupt the connection and abort the registration of your 3Com devices. Once 3Com Network Director is connected to the 3Com server, the data will be transmitted and the message will update. Once the transmission is complete, a confirmation message is displayed - 3Com 3C15500 | User Guide - Page 495
Reports The following reports are produced when administering devices. Web Management Devices that support the web interface can be listed by generating a custom report as follows: 1 From 3Com Network Director, launch the Reports dialog box from Tools > Reports. 2 Click Custom Report Types. 3 Click - 3Com 3C15500 | User Guide - Page 496
256. Figure 256 Device Warranty When you view the report you have generated the Registered column shows: ■ Yes - if 3Com Network Director registered the product. ■ No - if 3Com Network Director did not register the product. ■ N/A - if the product is not supported by the Device Warranty feature. - 3Com 3C15500 | User Guide - Page 497
and you wish to rename it 4007 using Telnet using the Telnet Management Interface. To do this: 1 Find the Switch 4007 device in the 3Com Network Director network map. This can be done using Edit > Find if needed. 2 Select the device and right-click on it to launch the right-click menu. 3 Select - 3Com 3C15500 | User Guide - Page 498
and you wish to view Ports using Device connected ports on it using Device View: View 1 Find the appropriate Switch 3300 device in the 3Com Network Director network map. This can be done using the Find dialog box if needed. 2 Select the device and right-click on it to launch the menu. 3 Select - 3Com 3C15500 | User Guide - Page 499
Next. 9 In the Summary step, make sure that the contact details are correct and click Finish. The registration details will be communicated to the 3Com server and a message box will be displayed to confirm the completion of the operation. You will also get a confirmation by email that the devices - 3Com 3C15500 | User Guide - Page 500
, although you have already registered them on the 3Com website The reason for this is that 3Com Network Director only knows about devices that were registered using 3Com Network Director. If the devices were registered on the 3Com website, 3Com Network Director will think these devices are as yet - 3Com 3C15500 | User Guide - Page 501
Why is there no warranty associated with some of the devices in the email? There are two explanations for this: ■ The product is not supported by 3Com anymore - if the product has been discontinued, there will be no warranty for that product. ■ The warranty date has expired - if the warranty period - 3Com 3C15500 | User Guide - Page 502
498 CHAPTER 12: CONFIGURING SINGLE DEVICES - 3Com 3C15500 | User Guide - Page 503
VLAN MANAGEMENT Overview This chapter describes the support for VLANs in 3Com Network Director. 3Com Network Director allows you to: ■ View the VLANs configured on your network ■ Configure the VLANs on your network Viewing the VLANs configured on your network ■ The Tools > Show VLANs menu option - 3Com 3C15500 | User Guide - Page 504
500 CHAPTER 13: VLAN MANAGEMENT Key Concepts This section describes some 3Com Network Director key concepts relating to VLANs. General VLAN concepts First some general information about network organization using VLANs. About VLANs A VLAN is a logical group of devices that can be located - 3Com 3C15500 | User Guide - Page 505
must be updated manually. With a VLAN setup, if an end station in VLAN Marketing for example is moved to a port in another part of the network, and retains routing device or Layer 3 switch. ■ VLANs help to control traffic. If a bridge port in a traditional LAN switching device receives a packet with - 3Com 3C15500 | User Guide - Page 506
of ports across one or more switches that are configured as members of the same VLAN. Devices attached to ports within the VLAN collection are members of the VLAN. In general, VLANs on 3Com switches are port-based VLANs and as a result VLAN support in 3Com Network Director is aimed at port-based - 3Com 3C15500 | User Guide - Page 507
Ports should be untagged if they are connected to devices that do not support 802.1Q VLAN tagged packets. Typically, end-stations will drop VLAN tagged member of all other VLANs. In a network where the VLANs are distributed amongst more than one switch, you must use 802.1Q tagged connections so - 3Com 3C15500 | User Guide - Page 508
is achieved by defining VLAN-based IP interfaces on a Layer 3 switch or router. Commonly, each VLAN corresponds to one IP subnet, although it is possible to have more than one IP subnet per VLAN. For example, a network has - 3Com 3C15500 | User Guide - Page 509
for all VLANs. Traffic on each VLAN is switched at Layer 2 via Switch D, and routed at Layer 3 to other VLANs via Switch D. For example, traffic from VLAN 1 on Switch A is switched to VLAN 1 on Switch B via Switch D. Traffic from VLAN 1 on Switch C to VLAN 2 on Switch C is routed at Layer 3 through - 3Com 3C15500 | User Guide - Page 510
IP interfaces Some 3Com Layer 3 switches allow multiple IP interfaces to be created for one VLAN. To support this, these Layer 3 switches have the concept of source address of the packet was on the 158.101.69.0 network, the agent receives the packet on the 158.101.69.254 interface. But there may be - 3Com 3C15500 | User Guide - Page 511
be forwarded on. 3Com Network Director provides limited support for protocol-based VLANs. 3Com Network Director allows you to view the existing protocol-based VLANs defined on any Switch 4007's or Corebuilder 3500's on your network. 3Com Network Director does not support the creation or modification - 3Com 3C15500 | User Guide - Page 512
carrying VLANs 1 and 2 to ensure connectivity. 3Com Network Director VLAN Concepts Discovering VLANs in 3Com Network Director When you perform a network discovery 3Com Network Director will retrieve the following information from each supported switch: ■ the textual description of the VLAN ■ the - 3Com 3C15500 | User Guide - Page 513
using untagged traffic for that VLAN i.e. factory-default switches with all ports on the default VLAN. A VLAN-aware item is any device that does not conform to one of the above rules. If a port is a member of a VLAN then 3Com Network Director will infer that all VLAN-unaware devices hanging off - 3Com 3C15500 | User Guide - Page 514
the PS Hub and end stations would also be highlighted, not just the Switch 3300. The rules used for inferring VLAN membership for VLAN-unaware devices are the set of VLAN-unaware devices, 3Com Network Director will stop when it reaches a router. ■ 3Com Network Director can infer that a device is a - 3Com 3C15500 | User Guide - Page 515
Key Concepts 511 Figure 264 VLAN Matching by 3Com Network Director 3Com Network Director would not consider these as two different VLANs and would instead work out that the VLANs are equivalent. 3Com Network Director will only consider a VLAN configured on one switch to be the same as a VLAN on - 3Com 3C15500 | User Guide - Page 516
or use VLAN names to override (non)equivalent IDs.Consider the following network: Figure 265 Network Example Because the links are tagged, 3Com Network Director will be able to deduce that the VLANs with ID 2 on each of the three switches are the same. Similarly with VLAN ID 3. However, the user has - 3Com 3C15500 | User Guide - Page 517
VLAN IDs consistently. Hence 3Com Network Director would log an entry in the Misconfigurations Report for this network. See "Inconsistent VLAN IDs" on page 535. Restrictions on VLAN support in 3Com Network Director ■ Older 3Com switches (e.g. the Switch 1000 and Switch 3000) supported VLANs based on - 3Com 3C15500 | User Guide - Page 518
802.1Q VLANs are supported. ■ 3Com Network Director does not support VLANs on non-3Com switches. VLANs that have been created on non-3Com switches cannot be viewed in 3Com Network Director and VLANs cannot be created or modified on non-3Com switches from 3Com Network Director. This section covers - 3Com 3C15500 | User Guide - Page 519
Figure 267 Show VLANs Toolbar Components 515 Selecting one of the VLANs from the list results in the members of that VLAN being highlighted on the map. For example: Figure 268 Show VLANs All devices and links that are not members of the VLAN are grayed-out. The VLANs tab in the Options dialog box - 3Com 3C15500 | User Guide - Page 520
are highlighted e.g. in the figure above, only the switch and the two links would be highlighted. ■ any devices which 3Com Network Director has inferred are members of the VLAN are also highlighted e.g. in the figure above, 3Com Network Director has inferred that the highlighted end-station is also - 3Com 3C15500 | User Guide - Page 521
contains only VLAN-unaware devices such as hubs and traditional routers. ■ The only VLANs on the network are configured on non-3Com devices. 3Com Network Director does not read VLAN information from non-3Com devices. If all switches only have the one default VLAN configured, then the following - 3Com 3C15500 | User Guide - Page 522
However, if a consistent name has not been used when configuring a VLAN on multiple switches, 3Com Network Director will choose one of the names to refer to the VLAN. For example, with the network below 3Com Network Director would have to choose between using the name Engineering or Eng to refer to - 3Com 3C15500 | User Guide - Page 523
VLAN Components 519 When choosing which name to use, 3Com Network Director gives preference to Layer 3 switches and switches with the most VLANs configured. This is likely to result in 3Com Network Director choosing the name configured on the most core switch in the VLAN. If a VLAN has not been - 3Com 3C15500 | User Guide - Page 524
VLAN. Then select VLAN in the Search By drop-down menu. A VLAN drop-down menu will then appear containing all of the VLANs on your network: Figure 270 VLAN Drop Down Menu Selecting one of these VLANs and clicking the Find button will list all of the members of the VLAN - 3Com 3C15500 | User Guide - Page 525
those items on which the VLAN is explicitly configured are listed, e.g. in the figure above, only the Switch 4007 would be listed, not the end-station, a Generic IP device. ■ or, any items which 3Com Network Director has inferred are members of the VLAN are also highlighted e.g. in the figure above - 3Com 3C15500 | User Guide - Page 526
522 CHAPTER 13: VLAN MANAGEMENT Figure 272 Options Dialog Box - VLANs Tab - 3Com 3C15500 | User Guide - Page 527
displayed. With the Include both configured and inferred devices option selected, as well as showing the switches and links on which the VLAN is configured, those devices and links that 3Com Network Director has inferred are members of the VLAN will also be displayed. See "VLAN membership inference - 3Com 3C15500 | User Guide - Page 528
format for each of the following: ■ VLAN-aware switches. See "VLAN membership inference" on page 509. ■ Switches with only one VLAN configured, i.e. factory-default switches ■ VLAN-unaware devices, including hubs, end-stations, traditional routers, etc. ■ Device for which no VLAN information is - 3Com 3C15500 | User Guide - Page 529
Properties Dialog Box - VLANs Tab Components 525 The combo box at the top of this dialog box lists all of the VLANs configured on this switch. The Ports in VLAN table is context sensitive; its contents change to reflect the selected VLAN, in the case above, vlan2. The VLAN may have - 3Com 3C15500 | User Guide - Page 530
untagged on this VLAN. Protocol Details button The Protocol Details button will be grayed for VLANs configured on Layer 2 switches. For VLANs configured on Layer 3 switches, or Layer 3 modules in a chassis, if a VLAN has Layer 3 details configured, this button will be enabled and will launch - 3Com 3C15500 | User Guide - Page 531
Figure 275 Protocol Column Components 527 VLAN Routing button The VLAN Routing button will be enabled if 3Com Network Director has been able to determine which, if any, devices are performing IP routing for the selected VLAN. Clicking the VLAN Routing button launches the VLAN Routing dialog box: - 3Com 3C15500 | User Guide - Page 532
on the router for the current VLAN. In some situations the VLAN Routing button will be disabled for a VLAN: ■ If the VLAN is a non-IP protocol-based VLAN. The VLAN Routing button only relates to IP routing. ■ If the VLAN is being routed by a non-3Com Layer 3 switch. 3Com Network Director does not - 3Com 3C15500 | User Guide - Page 533
- in this case only one. The combo box in the bottom section lists those VLANs that 3Com Network Director has inferred that this switch is a member of. See "VLAN membership inference" on page 509. The text below the combo box is context-sensitive and updates when a VLAN is selected - 3Com 3C15500 | User Guide - Page 534
the same function as the VLAN Routing button described above so it is enabled if 3Com Network Director has been able to determine which devices are performing IP routing for the selected VLAN of the VLANs tab for VLAN-unaware switches, described above: Figure 278 VLANs Tab for VLAN-Unaware Devices - 3Com 3C15500 | User Guide - Page 535
a traditional router and does not use VLANs. 3Com Network Director will not attempt to infer any VLAN membership of such a device. ■ There are in fact no VLANs explicitly configured on the network at all. ■ The only VLANs on the network are configured on non-3Com switches. 3Com Network Director does - 3Com 3C15500 | User Guide - Page 536
532 CHAPTER 13: VLAN MANAGEMENT VLANs tab for a link The VLANs tab for a link gives information on the VLAN configuration at one or both ends of the link - see below. For each end of the link, there is a table that lists the VLANs explicitly configured on the port(s) at that end of the link. The - 3Com 3C15500 | User Guide - Page 537
will list details of the VLANs configured on the switches on your network map. The report can either be generated for all of the switches on your map, or for selected switches only. To generate the report for selected switches only: 1 Select the switches on the map 2 Select the Tools > Reports menu - 3Com 3C15500 | User Guide - Page 538
factory-default VLAN configuration i.e. the VLAN configuration has not been changed. The switch is not considered to be actively using VLANs and is not displayed in the all the devices and links on your network, 3Com Network Director checks for any misconfigurations or potential optimizations. - 3Com 3C15500 | User Guide - Page 539
be used to refer to the VLAN in the rest of 3Com Network Director. Figure 283 Inconsistent VLAN Naming Example (1) Inconsistent VLAN IDs 3Com Network Director identifies the situation where inconsistent VLAN IDs have been configured on different switches but these IDs refer to the same VLAN. For - 3Com 3C15500 | User Guide - Page 540
536 for more details on the Changes Report. The Changes Report will not list any VLAN configuration changes that have been made using the 3Com Network Director Create VLAN or Edit Port VLAN Membership functionality. See "Create VLAN wizard" on page 537 and "Edit Port VLAN Membership wizard" on page - 3Com 3C15500 | User Guide - Page 541
in 3Com Network Director only shows the physical path(s) between two devices on the network. It on one VLAN will have to take a path through a router to reach the device on the other VLAN. This path VLAN wizard guides you through the process of creating a brand new VLAN on your network. Launching the - 3Com 3C15500 | User Guide - Page 542
used to create the VLAN on each of the selected switches. Figure 286 Entering the New VLAN Name and ID In the VLAN name field, enter a textual description for the new VLAN. Once the VLAN is created, this is the name that 3Com Network Director will use to refer to the VLAN. This value - 3Com 3C15500 | User Guide - Page 543
in the initial map selection, all ports connected to other switches in the map selection are listed. ■ For each non-switch in the map selection, 3Com Network Director will find the nearest switch port to the non-switch and add this switch and port to the list. ■ For each link in the map selection - 3Com 3C15500 | User Guide - Page 544
VLAN membership" on page 503. By default, 3Com Network Director assumes that: ■ inter-switch ports will be tagged ■ ports connected to non-switches will be untagged. So, in the example above 3Com Network Director would assume that the port on the Switch 1100 connected to the Hub should be untagged - 3Com 3C15500 | User Guide - Page 545
289 Selection Editor Dialog Box Components 541 This dialog box allows you to add and remove switches and switch ports. The tree in this dialog box will be initially populated with all of the switches and switch ports listed in the wizard stage. The tree lists all of the available ports on these - 3Com 3C15500 | User Guide - Page 546
. This launches the Find dialog box that lets you search for devices based on various criteria - see "Finding Items on Your Network" on page 192. Once you have selected all the switches and ports required, you can save this selection for use at a later stage using the Save As button. You can - 3Com 3C15500 | User Guide - Page 547
and open this template whenever a new VLAN needs to be created. When you click the OK button in the Selection Editor dialog box, 3Com Network Director will perform some checks on the selected switch ports. If a port has been selected as untagged and the port is already an untagged member of a VLAN - 3Com 3C15500 | User Guide - Page 548
is no such Layer 3 switch in the selected switches, 3Com Network Director will find the nearest suitable Layer 3 switch and work out which switch ports would need to be added to the VLAN to connect this Layer 3 switch to the other switches in the VLAN. 3Com Network Director will not search beyond - 3Com 3C15500 | User Guide - Page 549
Figure 292 Finding a Layer 3 Switch for a VLAN Components 545 If 3Com Network Director detects that there are additional ports required to fill in any gaps or that there are additional ports required to connect the current selection to a Layer 3 switch, these ports will be presented in the next - 3Com 3C15500 | User Guide - Page 550
574 for a list of supported switches. If the switches that the new VLAN is to be created on include switches that 3Com Network Director cannot automatically configure, e.g. non-3Com switches, then you will have to configure these manually using the switch's Telnet interface, Web management interface - 3Com 3C15500 | User Guide - Page 551
the list of selected switches and ports" on page 553. You can either manually configure these unsupported devices at this point in the wizard, or wait until 3Com Network Director has automatically created the VLAN on all the supported devices before manually configuring the unsupported devices - 3Com 3C15500 | User Guide - Page 552
548 CHAPTER 13: VLAN MANAGEMENT Figure 295 Specify an IP Routing Interface To add a new IP routing interface, select the Yes radio button in the wizard stage above and then click the Add IP Interface button. This launches the Add IP Interface dialog box: Figure 296 Adding a New IP Routing Interface - 3Com 3C15500 | User Guide - Page 553
menu and then enter a unique IP address and a subnet mask. Some 3Com Layer 3 switches allow you to create multiple IP interfaces per VLAN and as a result and Secondary IP interfaces" on page 506 for details. If your Layer 3 switch supports this, the drop-down menu at the bottom of the dialog box can - 3Com 3C15500 | User Guide - Page 554
Specifying an IP Routing Interface You may create additional IP interfaces on other Layer 3 switches by launching the Add IP Routing Interfaces dialog box again. If one of the VLAN. ■ Which ports will have to be manually configured to be tagged members of the new VLAN. ■ Which ports will have to be - 3Com 3C15500 | User Guide - Page 555
VLAN Summary report detailing the changes that were made. 3Com Network Director creates the new VLAN on each switch one at a time. If 3Com Network Director fails to create the VLAN on a switch for whatever reason, 3Com Network Director will stop the configuration process and will not attempt to - 3Com 3C15500 | User Guide - Page 556
the configuration of any of the switches has changed, 3Com Network Director will not attempt to create the new VLAN on any switch. The Create VLAN Summary report wizard guides you through the process of modifying the existing VLANs on your network. You can add VLANs to, or remove VLANs from, switch - 3Com 3C15500 | User Guide - Page 557
in the initial map selection, all ports connected to other switches in the map selection are listed. ■ For each non-switch in the map selection, 3Com Network Director will find the nearest switch port to the non-switch and add this switch and port to the list. ■ For each link in the map selection - 3Com 3C15500 | User Guide - Page 558
554 CHAPTER 13: VLAN MANAGEMENT Modifying the VLANs on the selected switch ports The next wizard stage displays all the VLANs that the selected switch ports are currently members of, and allows you to modify the VLAN membership. Figure 300 Modifying VLAN Membership Untagged VLAN When this wizard - 3Com 3C15500 | User Guide - Page 559
the drop-down menu. The drop-down menu contains all VLANs currently being used on your network. If you choose to modify the untagged VLAN for the selected ports, when you click the Next button 3Com Network Director will warn you that you may lose contact with the devices connected to these ports on - 3Com 3C15500 | User Guide - Page 560
currently being used on your network. By default, 3Com Network Director will assume that the following types of switch port should always be untagged: ■ Switch ports connected to devices that are not switches e.g. end-stations. 3Com Network Director assumes if a device is not a switch it will not be - 3Com 3C15500 | User Guide - Page 561
that you made in this wizard stage will be applied to the selected switch ports as follows: ■ If the untagged combo box selection is left unchanged result, the ports will not be members of any VLANs - 3Com Network Director expects all ports to be a member of at least one VLAN. When you - 3Com 3C15500 | User Guide - Page 562
be removed from the VLAN. If you add a port to a VLAN, untagged or tagged, and the VLAN does not currently exist on that switch, then 3Com Network Director will create the VLAN on the switch. This means that this wizard is not simply adding ports to a VLAN, it will sometimes have to create a VLAN on - 3Com 3C15500 | User Guide - Page 563
to the tagged VLAN membership of the ports: ■ Any tagged additions to a VLAN. ■ Any tagged removals from a VLAN. ■ Any ports that will have to be manually configured. For example: Figure 304 The Final Wizard Stage - 3Com 3C15500 | User Guide - Page 564
Edit VLAN Summary report detailing the changes that were made. 3Com Network Director edits the VLANs on each switch one at a time. If 3Com Network Director fails to edit the VLANs on a switch for whatever reason, 3Com Network Director will stop the configuration process and will not attempt to edit - 3Com 3C15500 | User Guide - Page 565
see "The Event Log" on page 319. Device History Report To view all of the VLAN creates and edits that have been performed by 3Com Network Director on your switches using the Create VLAN and Edit Port VLAN Membership wizards, you can launch the Device History report. To do this: ■ Launch the Reports - 3Com 3C15500 | User Guide - Page 566
it is configured on as tagged or untagged. Reporting the VLAN configuration of all switches on the network If you wish to generate a report detailing the VLAN configuration of all the switches on your network, you can launch the VLAN Configuration report. See "VLAN configuration report" on page 533 - 3Com 3C15500 | User Guide - Page 567
Components 563 Figure 305 Selecting the Link to the End Station on the Map - 3Com 3C15500 | User Guide - Page 568
VLAN MANAGEMENT If the port is not currently connected to anything, you would first select the switch on the map and then launch the Edit Port VLAN Membership wizard. Then in the first stage accounts (ID=2) This assumes that the accounts VLAN is an existing VLAN on your network: Before: Figure 306 - 3Com 3C15500 | User Guide - Page 569
IDs 2-6, 10-12 configured on all of your inter-switch links. You wish to add a new switch to your network and you therefore have to configure all of these VLANs on the link connecting this switch to the network. In the network shown in Figure 308 the new switch is 140.204.232.79. First, you would - 3Com 3C15500 | User Guide - Page 570
this wizard stage as no additional ports need to be added. The next wizard stage would initially display the VLANs currently configured on the two switch ports. This would likely be just the default VLAN, ID 1. To specify that the ports should also become tagged members of the VLANs with IDs - 3Com 3C15500 | User Guide - Page 571
Figure 309 The Second Wizard Stage Components 567 Clicking Next would take you to the Summary stage box listing all of the changes that are about to be applied: Figure 310 The Summary Wizard Stage Clicking Finish would then apply the VLAN membership changes to the two switch ports. - 3Com 3C15500 | User Guide - Page 572
system while the network is reconfigured. 1 Ensure that the NBX call processor and phones have been discovered in 3Com Network Director and are present in network then these will be listed in the Additional Ports step. 12 If the Manual Configuration Required step is displayed then select each switch - 3Com 3C15500 | User Guide - Page 573
14 In the Add IP Interface dialog box, select the router or layer-3 switch that you wish to use to route to the VLAN ieee.org Device support See "Reference A" on page 574 for a list of 3Com switch models for which 3Com Network Director can display and configure VLANs. Each 3Com switch has a maximum - 3Com 3C15500 | User Guide - Page 574
. Even though 3Com Network Director checks that the basic configuration of a switch hasn't changed since the map was last updated before creating or editing VLANs, 3Com Network Director does not check whether the topology of the network has changed. Troubleshooting Incorrect VLAN membership - 3Com 3C15500 | User Guide - Page 575
192.168.152.0. The Switch 4007 is a Layer 3 switch, routing between the two subnets. If subnet 140.204.232.0 was discovered first and then the 192.168.152.0 subnet was discovered in a second network discovery operation, 3Com Network Director would incorrectly display the network topology as follows: - 3Com 3C15500 | User Guide - Page 576
domain for each VLAN. 3Com Network Director may not represent the topology of such networks correctly. In general, 3Com switches only support one Spanning Tree domain. Problems with apparent network loops In order for 3Com Network Director to construct its map of the network, it reads the Bridge - 3Com 3C15500 | User Guide - Page 577
port on another VLAN, on the same switch e.g.: Figure 313 Coexistent MAC Address This causes 3Com Network Director problems when it tries to construct its map of the network. The algorithm that 3Com Network Director uses to construct the map assumes that the network can be represented by a tree of - 3Com 3C15500 | User Guide - Page 578
3Com devices have support for VLAN display and configuration in 3Com Network Director. Switch 610/630 Switch 1100/3300 Switch 4200 Switch 4300 Switch 4400 Switch 49xx Switch 4050/4060/4070 Switch 4005 Switch 4007 Switch 7700 Corebuilder 3500 Switch 3900/9300 Switch 3800 Switch 9000 Switch 9100 Switch - 3Com 3C15500 | User Guide - Page 579
II Switch 610 3Com SuperStack II Switch 630 3Com SuperStack II/SuperStack 3 Switch 1100 family 3Com SuperStack II/SuperStack 3 Switch 3300 family 3Com SuperStack 3 Switch 4400 family 3Com SuperStack 3 Switch 4900 family 3Com Switch 4050/4060/4070 3Com Switch 4005 and modules 3Com Switch 4007 - 3Com 3C15500 | User Guide - Page 580
576 CHAPTER 13: VLAN MANAGEMENT Device Type 3Com CoreBuilder 9000 and modules 3Com Switch 7700/3Com Switch 7700R 3Com CoreBuilder Switch 3500 and modules 3Com SuperStack II Switch 3900/9300 family 3Com SuperStack 3 Switch 3200 family 3Com SuperStack 3 Switch 3800 family Maximum Number of VLANs 127 - 3Com 3C15500 | User Guide - Page 581
to ■ Issue a configuration change to one or more supported devices, of the same or different types, in a single operation A single configuration may be applied to multiple devices of different types. However, 3Com Network Director will only allow a configuration template to be applied to - 3Com 3C15500 | User Guide - Page 582
help make common changes to the software configuration of multiple devices in a 3Com Network Director is able to configure on supported 3Com switches. ■ Switch Ports - provides access to all of the port-level attributes that 3Com Network Director is able to configure on supported 3Com switches - 3Com 3C15500 | User Guide - Page 583
configuration feature, that once defined, will allow the user to visualize and configure the network in terms of device/port groups and configuration profiles. Saved selections are independent of Components This section describes how to use the Bulk Configuration feature of 3Com Network Director. - 3Com 3C15500 | User Guide - Page 584
to apply the configuration template to a device or port selection. Launch the Configuration Editor dialog box by choosing either the Switch Devices... or Switch Ports... option, from the Device > Configure submenu. Figure 314 Configuration Editor Dialog Box The dialog box represents the contents of - 3Com 3C15500 | User Guide - Page 585
does not contain any supported devices then an error will be displayed to indicate the problem. Configuration Summary Tree Features The following table shows the set of features contained in the 3Com Network Director Switch Device configuration template. Table 88 Switch Device configuration template - 3Com 3C15500 | User Guide - Page 586
are invalid. Navigate to the corresponding feature panel, by selecting the associated entry in the tree, for a detailed explanation of the problem. Invalid feature settings must be resolved before it is possible to apply a configuration template to a device or port selection. Feature Configuration - 3Com 3C15500 | User Guide - Page 587
a warning symbol will be displayed next to the feature's name in the summary tree. Also a warning dialog box will be displayed to indicate the problem when an attempt is made to navigate to the feature configuration panel from another panel, or when an attempt is made to save the configuration - 3Com 3C15500 | User Guide - Page 588
to be configured. For example, if the Configuration Editor dialog box was launched from the Device > Configure > Switch Devices menu option, then it will only allow Switch Device configuration templates to be opened. Selection Editor Dialog Box The Selection Editor dialog box allows the user to - 3Com 3C15500 | User Guide - Page 589
Components 585 Figure 316, above, shows an example of a port selection being edited. The Add Port, Remove Port and Add by type buttons are not visible when the dialog box is used to edit a device-only selection, as used with device-based configuration templates. If the Configuration Editor dialog - 3Com 3C15500 | User Guide - Page 590
will be updated to remove the chosen devices indicating that they are no longer selected. If a device is added to the selection that is not supported by the bulk configuration operation, the device appears in the selection editor with a brief note next to the device name indicating the reason that - 3Com 3C15500 | User Guide - Page 591
Components 587 The bulk configuration operation will not attempt to configure any ports that are not marked as selected by a green tick. For convenience, ports can also be added to the selection according to their type, e.g. all connected ports, using the Add Ports by Type dialog box. Figure 317 Add - 3Com 3C15500 | User Guide - Page 592
operation is performed on a selection that contains missing devices the missing devices will be ignored by the configuration operation. 3Com Network Director matches devices in a loaded selection with the corresponding devices in the map using a physical identifier based on the hardware - 3Com 3C15500 | User Guide - Page 593
. The Configuration Editor dialog box validates each of the feature configuration panels and ensures that the current selection includes at least one supported device or port before allowing you to continue. If the selection which the configuration template will be applied to has not been reviewed - 3Com 3C15500 | User Guide - Page 594
590 CHAPTER 14: BULK CONFIGURATION Figure 319 Configuration Progress Dialog Box The Configuration Progress dialog box shows the progress of the overall operation in the upper progress bar, and the progress of the operation in configuring the current device in the lower progress bar. - 3Com 3C15500 | User Guide - Page 595
on this device. Displayed at the beginning of the configuration process for a device, while the application checks that the device on the network has not been changed since it was selected. Displayed while the configuration template is being applied to the device. Displayed when the configuration - 3Com 3C15500 | User Guide - Page 596
was involved in the configuration operation and indicates whether any problems were encountered. The feature summary section provides information about checked. The table defines users who are able to login to the network devices. Each user account has the following parameters: Table 91 User Account - 3Com 3C15500 | User Guide - Page 597
Components 593 Account Access Level Community String Password Public Key(s) Parameter The level of permission that the user has when managing the device. Levels are: security, manager and monitor. Note: security has the highest level of management permission and monitor the lowest. The SNMP - 3Com 3C15500 | User Guide - Page 598
report associated with the operation. If the community strings that 3Com Network Director is using to manage a given device are changed or removed checkbox is checked. The setting specifies whether those devices that support RADIUS Authentication should use a RADIUS server to authenticate users who - 3Com 3C15500 | User Guide - Page 599
Add User Account Dialog Box Figure 321 Add User Account Dialog Box Components 595 The Add User Account dialog box allows the creation of a new user account. A username, community string and access level must be provided for the new account. Optionally a login password and a set of SSH client - 3Com 3C15500 | User Guide - Page 600
for each access level and access method from the associated drop down list. 3Com Network Director does not allow the user to disable SNMP access for the security access level as this would prevent 3Com Network Director from carrying out any further configuration of the device. Configuring Trusted IP - 3Com 3C15500 | User Guide - Page 601
are shown on the right of the panel. In a new configuration template the list contains a single default entry containing the IP address of the 3Com Network Director management station with a subnet mask of 255.255.255.255. Trusted IP addresses can be added to the list, one at a time, using the - 3Com 3C15500 | User Guide - Page 602
configuration template to a device selection will be prevented until the problem is corrected, as this would otherwise prevent 3Com Network Director from carrying out any further configuration of the device. Not all devices support as many trusted IP addresses as the configuration template allow to - 3Com 3C15500 | User Guide - Page 603
the authentication and accounting servers the network devices should use when authenticating users for device or network access. Figure 325 Radius Servers service is available and the shared secret for the RADIUS service. For the accounting server the action that should be taken if the service is - 3Com 3C15500 | User Guide - Page 604
network because the SNMP protocol that 3Com Network Director uses to configure the devices is unencrypted. It is possible that a user of the network an authentication and accounting server if desired. The port on which the RADIUS service is available. The port must be in the range 1-65535. The shared - 3Com 3C15500 | User Guide - Page 605
Figure 326 System Information Panel Components 601 The system information parameters will only be applied as part of the configuration template if the associated checkboxes are checked. To specify a string for the system name parameter choose Custom from the associated drop down list and enter the - 3Com 3C15500 | User Guide - Page 606
602 CHAPTER 14: BULK CONFIGURATION Figure 327 Trap Destinations Panel The trap destination table will only be applied as part of the configuration template if the associated checkbox is checked. The table defines the addresses to which the device will send SNMP traps, each entry has the following - 3Com 3C15500 | User Guide - Page 607
it is not added to the trap table in this feature panel. Consequently, this could prevent 3Com Network Director from successfully monitoring the network devices. Not all devices support as many trap destinations as the configuration template allows to be entered. In addition, the bulk configuration - 3Com 3C15500 | User Guide - Page 608
604 CHAPTER 14: BULK CONFIGURATION Figure 329 Spanning Tree Panel The Spanning Tree mode setting will only be applied as part of the configuration template if the associated checkbox is checked. The remaining parameters for this feature will only be applied as part of the configuration template if - 3Com 3C15500 | User Guide - Page 609
Enabled or Disabled. Configuring Broadcast Storm Control The Broadcast Storm Control feature allows the user to control the way in which the devices respond to a network broadcast storm. - 3Com 3C15500 | User Guide - Page 610
limit value must be in the range 0-262143. Port Configuration Panels Configuring Port Security The Port Security feature allows control of user access to the network through the ports on the devices. - 3Com 3C15500 | User Guide - Page 611
only be set when the secure mode is set to a value other than No security. The number of addresses that are authorized to access the network through this port must be in the range 1-5. The value for this parameter can only be set when the secure mode is set to either - 3Com 3C15500 | User Guide - Page 612
608 CHAPTER 14: BULK CONFIGURATION Configuring Spanning Tree The Spanning Tree feature allows configuration of the port spanning tree protocol settings on the network devices. Figure 333 Spanning Tree Panel The settings for each of the spanning tree parameters will only be applied as part of the - 3Com 3C15500 | User Guide - Page 613
Figure 334 Port Administration Panel Components 609 The settings for each of the port administration parameters will only be applied as part of the configuration template if the associated checkbox is checked. Configuring Autonegotiation The Autonegotiation feature allows the configuration of - 3Com 3C15500 | User Guide - Page 614
610 CHAPTER 14: BULK CONFIGURATION Figure 335 Autonegotiation Panel The settings for each of the autonegotiation parameters will only be applied as part of the configuration template if the associated checkbox is checked. In addition, the Advertised Capabilities parameter will only be enabled if - 3Com 3C15500 | User Guide - Page 615
Components 611 Configuring LACP The LACP feature allows the user to control whether ports should automatically attempt to join link aggregations between the network devices using the Link Aggregation Control Protocol. Figure 336 LACP Panel The settings for each of the LACP parameters will only be - 3Com 3C15500 | User Guide - Page 616
Configuration feature of 3Com Network Director. Configuring User Accounts Following an audit of network security, it network are present in the current map. If necessary run a network discovery. See "Launching a discovery" on page 106. 2 Launch the Configuration Editor dialog box using the Switch - 3Com 3C15500 | User Guide - Page 617
dialog box and click OK. Many 3Com devices keep an audit log of all management user sessions, providing a record of a variety of changes to their configuration. By creating a personal account for each user that requires access to the devices on the network, it is possible to identify the user - 3Com 3C15500 | User Guide - Page 618
614 CHAPTER 14: BULK CONFIGURATION If there are many network specialists, a decision may be made to create a single account that can be shared by all of them. Click the Save As button from the Configuration Editor dialog box and save the current switch configuration template with a suitable filename - 3Com 3C15500 | User Guide - Page 619
all supported 3Com devices on the network according to the user accounts defined in the configuration template. It is strongly recommended that any unsupported 3Com or 3rd party devices on the network are manually configured to suit the applicable network security policy. Configuring Network Login - 3Com 3C15500 | User Guide - Page 620
to start the bulk configuration operation immediately. Once the bulk configuration operation has successfully setup the RADIUS Server details on all of the selected switches 3Com Network Director will be ready to configure the appropriate switch ports to use the network login port security mode. - 3Com 3C15500 | User Guide - Page 621
: 1 Launch the Configuration Editor dialog box using the Switch Ports option from the Device > Configure menu. 2 Select type option and select the Switch 4400 device type from the drop down list, and click Find. Highlight the Switch 4400 devices that provide the network connections for the new hot- - 3Com 3C15500 | User Guide - Page 622
618 CHAPTER 14: BULK CONFIGURATION Figure 342 Selection Editor Dialog Box - Port Selection 6 Click the Add by Type button, and use the Add Ports By Type dialog box to add all of the edge ports belonging to the highlighted devices to the port selection. It is possible to expand the devices and units - 3Com 3C15500 | User Guide - Page 623
of 3Com Network Director. Supported Devices For information on the devices supported by instructions on how to update the agent software on the device. ■ Not Supported - one or more units in the device are not supported. Please ensure that the latest service pack available has been downloaded - 3Com 3C15500 | User Guide - Page 624
device to allow the feature to be fully supported on this device. 5 3Com Network Director is unable to configure the non-default user account on the Switch 4005 device. This account must be configured manually on the device, see the Switch 4005 User Guide for details of how to configure the non - 3Com 3C15500 | User Guide - Page 625
Bulk Configuration The Bulk Configuration feature is capable of effecting significant changes to the software configuration of the devices on the network. It is possible to severely disrupt the operation of the network through accidental misuse of this feature. It is strongly recommended that you - 3Com 3C15500 | User Guide - Page 626
622 CHAPTER 14: BULK CONFIGURATION - 3Com 3C15500 | User Guide - Page 627
TRAFFIC Overview This chapter describes how 3Com Network Director is used to prioritize network traffic on the 3Com devices on your network. By enabling prioritization, you can specify the importance of certain types of network traffic (such as traffic to and from database servers or NBX phone - 3Com 3C15500 | User Guide - Page 628
to be dropped if there is congestion on the network. ■ To prevent traffic that has been blocked from flowing on the network. In order to achieve the aims of traffic prioritization across the network, each Switch in the network must provide facilities for: ■ Performing identification of the most - 3Com 3C15500 | User Guide - Page 629
For example, this can mean that while one device in your network is able to identify traffic to and from your database server using the priority of the packet. IETF RFC 2474 - defines the use of the Differentiated Services (DiffServ) field in the IP header. This field can take one of sixty-four - 3Com 3C15500 | User Guide - Page 630
marking schemes at different locations in the network 3Com recommends that, if possible, one is selected and used throughout the network. ■ Packets sent across the network must first pass through a complex classification device (such as a 3Com SuperStack 3 Switch 4400) so that they can be marked - 3Com 3C15500 | User Guide - Page 631
to the particular queue servicing mechanism that is in place. A device may support one or more of the various queue servicing mechanisms that are results of a queuing servicing mechanism is illustrated in Figure 344. It shows how important traffic flows through the network quicker than the less - 3Com 3C15500 | User Guide - Page 632
35643254312211 Queuing Mechanism Packets Transmitted Out of Port Queue 1 2 3 1 2 3 1 2 4 5 3 4 5 Servicing Mechanism 123 12345 12345 Queue full! 6 Sixth bronze packet is dropped. If these queuing operations are performed on all devices in the network then the overall effect is to speed up the - 3Com 3C15500 | User Guide - Page 633
of dropping allows the device to prevent blocked traffic from flowing on the network. This is achieved by discarding (dropping) packets that are identified via classification as traffic that should be blocked. Service Levels The overall set of actions that are performed as a result of a particular - 3Com 3C15500 | User Guide - Page 634
, it would be possible to say that database traffic is treated as business critical throughout the network. Settings within a service level may vary from device to device depending upon the device's capabilities. One device, for example, may have four queues whilst another device may have - 3Com 3C15500 | User Guide - Page 635
describes the principles of traffic prioritization using 3Com Network Director. Prioritize Network The Prioritize Network Traffic Wizard enables you to simplify traffic Traffic Wizard prioritization configuration on your network without the need to manually set up classifiers, dropping, queuing and - 3Com 3C15500 | User Guide - Page 636
transmitted out of these ports. See "Vlan Management" on page 499 for more information on configuring VLANs using 3Com Network Director. Configuration Type Step You can select which of the supported 3Com devices in your network you wish to configure as follows (See Figure 345): Figure 345 Prioritize - 3Com 3C15500 | User Guide - Page 637
which of the supported 3Com devices in your network that the wizard should apply the selected configuration to. 3Com recommends that you NBX network call processor then 3Com Network Director will detect this and automatically select NBX phone traffic for prioritization. 3Com Network Director will - 3Com 3C15500 | User Guide - Page 638
phone traffic by 3Com Network Director. Traffic that matches these classifier rules is also mapped to the Voice service level. See "3Com Network Director Service Levels" on page 655 for definitions of the service levels used by 3Com Network Director. When you are configuring 3Com devices that are - 3Com 3C15500 | User Guide - Page 639
. Traffic that matches these classifier rules is mapped to the Business Critical service level. See "3Com Network Director Service Levels" on page 655 for definitions of the service levels used by 3Com Network Director. When you are configuring devices that are not capable of classifying traffic - 3Com 3C15500 | User Guide - Page 640
TRAFFIC There are several servers that 3Com Network Director will not allow you to select for blocking. In addition, there are various problems that may arise due to selecting servers for blocking. For more information see "Potential Hazards When Blocking Traffic To and From Servers" on page 659 - 3Com 3C15500 | User Guide - Page 641
is mapped to the Drop service level. See "3Com Network Director Service Levels" on page 655 for definitions of the service levels used by 3Com Network Director. 3Com Network Director imposes restrictions on the blocking of SNMP traffic. In addition, there are various problems that may arise due to - 3Com 3C15500 | User Guide - Page 642
, the Prioritize Network Traffic Wizard configures each of the supported 3Com devices in the map to prioritize network traffic according to you of this problem and subsequently generate an Agent Upgrades Required for Prioritization report. For each device that the wizard cannot support due to its - 3Com 3C15500 | User Guide - Page 643
network has been configured to block. ■ The devices in the network that were successfully configured. ■ The devices in the network that the wizard failed to configure. 3Com Network Director classifiers that are in use on each port ■ The service levels that the classifiers map to ■ The details of - 3Com 3C15500 | User Guide - Page 644
. This is particularly useful if you have decided to manually configure your devices. Whenever you run the Prioritization Configuration report, 3Com Network Director retrieves the configuration information directly from the supported 3Com devices in your network. As this report must poll each of the - 3Com 3C15500 | User Guide - Page 645
wish to ensure that the phone calls made using the system are of high quality, even when the network is congested. To do this: 1 Ensure the NBX network call processor has been discovered by 3Com Network Director and is present in the map. See "NBX Phone Detection" on page 95 for more information on - 3Com 3C15500 | User Guide - Page 646
the Configuration Summary step, select Finish to apply the updated configuration to the supported 3Com devices in the map. Prioritizing Traffic To and From a SAP Server You have noticed that during periods of network congestion, several of your users have had difficulties accessing your SAP server - 3Com 3C15500 | User Guide - Page 647
Examples 643 Figure 351 Setup Servers - Prioritizing Traffic To and From a SAP Server Example 4 In the Setup Servers dialog, select Add to display the Add Server dialog (as shown in Figure 352) enabling you to add the SAP server. Figure 352 Add Server - Prioritizing Traffic To and From a SAP Server - 3Com 3C15500 | User Guide - Page 648
Summary step, select Finish to apply the updated configuration to the supported 3Com devices in the map. Blocking Access to a Streaming Audio Server to the Setup Servers step. If you have entered a DNS name then 3Com Network Director will resolve the DNS name to an IP address for you. 6 Click - 3Com 3C15500 | User Guide - Page 649
the updated configuration to the supported 3Com devices in the map. Prioritizing a Video Conferencing Application The CEO is holding a video conference with direct reports over the corporate intranet. Previous conferences like this have been affected by network congestion causing intermittent loss - 3Com 3C15500 | User Guide - Page 650
646 CHAPTER 15: PRIORITIZING NETWORK TRAFFIC Figure 353 Applications - Prioritizing a Video Conferencing Application Example 4 To add the video conferencing application to the list of applications, select Setup Applications from the - 3Com 3C15500 | User Guide - Page 651
Examples 647 Figure 354 Add Applications - Prioritizing a Video Conferencing Application Example 6 To specify the application definition, type the name of the application in the Name field. 7 To add each of the classifiers to the application, click Add to display the Add Classifier dialog as shown - 3Com 3C15500 | User Guide - Page 652
step, click Finish to apply the updated configuration to the supported 3Com devices in the map. Restricting Access to For security purposes you wish to restrict the use of SNMP in your SNMP network to the PCs used by the network managers. 1 In the Introduction step, click Next. The wizard will - 3Com 3C15500 | User Guide - Page 653
Examples 649 3 To add the first network manager's PC to the list of servers, select Setup Servers from the Servers step to display the Setup Servers dialog in In the Setup Servers dialog, click Add to display the Add Server dialog in Figure 358, enabling you to add the first network manager's PC. - 3Com 3C15500 | User Guide - Page 654
DNS name/IP address: field. Click OK to add the PC and return to the Setup Servers screen. If you have entered a DNS name then 3Com Network Director will resolve the DNS name to an IP address for you. 6 Repeat steps 4 and 5 to add in the other - 3Com 3C15500 | User Guide - Page 655
651 Figure 359 Applications - Restricting Access to SNMP Example 9 Select the application Network Management (SNMP) from the Normal or Prioritized list. Select Set Blocked and the Configuration Summary step, click Finish to apply the updated configuration to the supported 3Com devices in the map. - 3Com 3C15500 | User Guide - Page 656
TRAFFIC Useful Information The following section provides useful information and references when and References using 3Com Network Director. User Priority Field The user priority field (and the tagged header that it is present in) allows information about the priority level of a packet to - 3Com 3C15500 | User Guide - Page 657
field, defined in the IETF (Internet Engineering Task Force) RFC 2474, allows information about the quality of service requirements of a packet to be carried with the packet as it traverses the network. There are no restrictions on what any of the codepoint values mean as it is the choice of the - 3Com 3C15500 | User Guide - Page 658
the field values that their applications use either in the application manual or on the vendor's website to aid firewall configuration. This the known IP protocol numbers. 3Com Network Director Classifier Rules for NBX Phone Traffic When 3Com Network Director configures devices that are capable - 3Com 3C15500 | User Guide - Page 659
service level does not perform any remarking and sends all packets to queue 0 (Low). Configuration Levels The Prioritize Network Traffic Wizard configures devices based upon their for Supported 3Com capabilities. These capabilities are dependent upon the device type and Devices the agent software - 3Com 3C15500 | User Guide - Page 660
15: PRIORITIZING NETWORK TRAFFIC Table 105 Configuration Levels for Supported 3Com Devices Classify Servers Classify Applications Drop Traffic Number of Queues Mark 802.1p Mark DSCP Device Type Agent Version SuperStack 3 Switch 4200 Family Any ✕✕✕ 2 ✕✕ SuperStack 3 Switch 4400 Family Any - 3Com 3C15500 | User Guide - Page 661
when configuring traffic prioritization on your network: Resource Warnings Resource warnings occur for then it may not be possible to configure all of the supported devices to match the configuration exactly as the configuration may require problem that has been detected as shown in Table 106. - 3Com 3C15500 | User Guide - Page 662
NETWORK TRAFFIC Table 106 Resource Warnings Resource Warning Content The type of devices that are affected by this problem A description of the problem A list of all devices that are affected by this problem Details of the problem and update all devices whose agent software version is out of date. - 3Com 3C15500 | User Guide - Page 663
following occur: ■ 3Com Network Director was unable to contact any of the configured DNS servers when it was started. ■ 3Com Network Director was only able To and From Servers be blocked then this can cause severe problems on your network. Whenever you attempt to block traffic to and from a server - 3Com 3C15500 | User Guide - Page 664
block this server 3Com Network Director would no longer be able to contact your network. This would prevent it from configuring the devices on your network. ■ Any device in the map that forms part of the network infrastructure, such as a switch, hub or router. 3Com Network Director will not prevent - 3Com 3C15500 | User Guide - Page 665
wrong application definitions are used for blocking an application this can cause severe problems on your network. There are two reasons why blocking a particular application definition may cause problems on your network: ■ The application definition may not be narrow enough to prevent accidental - 3Com 3C15500 | User Guide - Page 666
devices may dynamically allocate to an application it could cause intermittent problems on your network. Whenever an application is dynamically allocated a port that is 3Com Network Director from functioning correctly and prevent you from manually accessing these devices. 3Com Network Director - 3Com 3C15500 | User Guide - Page 667
3Com Network Director can be used to manage the agent software on 3Com devices across your network and to ensure that the 3Com devices on your network are running the latest agent software available to you. You can use the Agent Update feature to: ■ Upgrade all supported 3Com devices on your network - 3Com 3C15500 | User Guide - Page 668
3Com Network Director contains a built in TFTP server that is started when you begin an Agent Update operation. The server is responsible for transferring agent software in the current Agent Update operation. ■ Only requests for file downloads are permitted. ■ The TFTP server only runs for the - 3Com 3C15500 | User Guide - Page 669
3Com Network Director. Agent Update Wizard The Agent Update Wizard guides you through the process of upgrading devices in the network. This step also allows you to import a new agent that may have been downloaded from the 3Com website or provided on a product CD. To import an agent, click Agent - 3Com 3C15500 | User Guide - Page 670
all 3Com devices - updates all devices in the network that meet the following criteria: ■ Supported by Agent Update ■ Not running the latest version of available agent software already down list shown. For example, selecting a Switch 4900 will match the 4900, the 4900 SX, 4924 and 4950 units. - 3Com 3C15500 | User Guide - Page 671
, they are listed separately in the Update by type to latest list box. The Switch 610s and 630s are not listed separately, but will appear when you select all by type for 1100 and 3300 respectively. 3Com Network Director does not distinguish between the 610/1100 and 630/3300. ■ Custom - allows full - 3Com 3C15500 | User Guide - Page 672
Name - specifies the name or IP address of the 3Com device. ■ Type - specifies the 3Com family name of the listed device. ■ Units - specifies supported by Agent Update, but has no suitable agent software available. ■ Not Supported - displays if Agent Update does not support the device. See "Supported - 3Com 3C15500 | User Guide - Page 673
Components 669 Change Agent Version Step Click Change Version on the Specify Devices and Agent Versions wizard step to launch the dialog box shown in Figure 363. The dialog box will list all agent versions that Agent Update has imported for the selected device using the Agent Import tool. Figure 363 - 3Com 3C15500 | User Guide - Page 674
670 CHAPTER 16: UPGRADING DEVICE SOFTWARE Scheduling Step You can specify a time to carry out the operation. The default option in this step is Now which will perform the Agent Update - 3Com 3C15500 | User Guide - Page 675
selected on the Specify Devices and Agent Versions step. Devices can also be removed from the list by 3Com Network Director for the following reasons: ■ The device is not supported - any unsupported devices are removed. ■ Downgrading the device is not allowed - if the list contains devices that - 3Com 3C15500 | User Guide - Page 676
672 CHAPTER 16: UPGRADING DEVICE SOFTWARE The Progress Dialog Box The Progress dialog box displays when an Agent Update operation is stages of each update. These are: ■ Preparing device ■ Verifying the device properties ■ Contacting device ■ Loading agent software to unit x of y ■ Verifying update - 3Com 3C15500 | User Guide - Page 677
download was successful, Agent Update will read the device details at the end of the update and check that the new software and suggests possible resolutions to the problem. Agent Update Reports The following reports 3Com Network Director will also report a reason for the failure and - 3Com 3C15500 | User Guide - Page 678
3Com devices on your network that are running up-to-date agent software. ■ A list of the 3Com devices on your network that are not supported by Agent Update. ■ A list of the 3Com devices on your network for which there are no supported type radio button and click 3Com Switch 4400 from the drop-down - 3Com 3C15500 | User Guide - Page 679
report. Once it appears, check that all entries in the report indicate that all of the Switch 4400s were successfully upgraded to the new agent version. Detecting and There is a problem device on the network. You want to see if anything Downgrading a has changed recently and, if so, undo the changes - 3Com 3C15500 | User Guide - Page 680
676 CHAPTER 16: UPGRADING DEVICE SOFTWARE Useful Information The following section provides assistance when using Agent Update on and References your network. Supported Devices Some types of devices are supported only from a minimum agent version onwards. If you want to upgrade the agent of a - 3Com 3C15500 | User Guide - Page 681
or cleared. ■ An interruption in the TFTP transfer of the agent file has left the device in a non-operational state. 3Com recommends that you use your usual network monitoring tools to check that there are no general problems with your network before trying to troubleshoot problems with the device. - 3Com 3C15500 | User Guide - Page 682
a device to return to an operational state following an update of the agent software. Therefore: ■ If the device appears to be in an operational state, try case, most 3Com devices will try to download the agent image from your management station indefinitely. However, 3Com Network Director will not - 3Com 3C15500 | User Guide - Page 683
Considerations 679 To alter the time-out and retry values: 1 Close down 3Com Network Director. 2 Open the AUProperties.XML file using Notepad or another text editor. 3 the value to increase the number of TFTP retries. 5 Restart 3Com Network Director and try to update the problem device again. - 3Com 3C15500 | User Guide - Page 684
680 CHAPTER 16: UPGRADING DEVICE SOFTWARE - 3Com 3C15500 | User Guide - Page 685
3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Overview This chapter describes how to use 3Com Network Director to discover, monitor and manage multi-site networks Concepts Multi-Site Networks A multi-site network is a network whose components (for example, switches, hubs, routers, servers and end - 3Com 3C15500 | User Guide - Page 686
between sites may be installed, owned and managed by a service provider, leaving you with little or no control over them. 3Com Network Director Support for Multi-Site Networks 3Com Network Director monitors and manages the devices in your network from a single PC. As a result, when running in - 3Com 3C15500 | User Guide - Page 687
monitor thresholds More details of each of these features are provided below. In addition, if you manage your WAN routers directly, 3Com Network Director will discover the WAN links in your network and add them to the map, allowing you to monitor the usage of your WAN. Configurable Timeouts - 3Com 3C15500 | User Guide - Page 688
, requests to or responses from that remote site may be dropped by the routers at either end of the oversubscribed links. By increasing the number of retries you can increase the number of attempts 3Com Network Director will make with each request before concluding that the device it is destined to - 3Com 3C15500 | User Guide - Page 689
WAN links. This may result in higher latency on these links, and may even lead to the links becoming oversubscribed. To avoid this situation, 3Com Network Director allows you to control the rate at which actively monitored devices are polled. By decreasing the poll rate you can reduce the amount of - 3Com 3C15500 | User Guide - Page 690
slower to requests than local devices. By increasing the threshold for a service monitor you can increase the range of response times that 3Com Network Director considers to be normal, which will prevent 3Com Network Director from incorrectly reporting these devices as having slow response times. - 3Com 3C15500 | User Guide - Page 691
discover a device. When 3Com Network Director discovers a router in your network it determines which, if any, of the active interfaces on the router are WAN interfaces. The supported interface types are listed in "Supported WAN Interface Types" on page 748. 3Com Network Director then creates links - 3Com 3C15500 | User Guide - Page 692
688 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Manual Layout of WAN Topology If you have further details of the WAN topology in your network, such as which interfaces on which routers correspond to each other for point-to-point connections, then you may wish to correct the - 3Com 3C15500 | User Guide - Page 693
Manual Layout of WAN Topology" on page 691 for details of how to restore these WAN interface representations. 2 Link the two routers together: a Select the two routers in the map or the tree. b Select Edit > Add Link to link the two routers the two routers. 3Com Network Director automatically - 3Com 3C15500 | User Guide - Page 694
3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK . 2 Remove the logically connected routers' links to the "Default WAN" cloud: a Locate the routers that contain the WAN interfaces that interfaces. See "Restoring WAN Interface Representations after a Manual Layout of WAN Topology" on page 691 for - 3Com 3C15500 | User Guide - Page 695
connections only and so cannot be monitored. Restoring WAN Interface Representations after a Manual Layout of WAN Topology During the manual layout of WAN topology, you may have had to delete a link between a router and the Default WAN cloud that represented other WAN interfaces in addition to the - 3Com 3C15500 | User Guide - Page 696
whose representation has been removed from the map, or other routers on the same subnet as the router that the link was connected to, then it is recommended by the discovery operation. Manual Layout of WAN Topology and Rediscovery 3Com Network Director assumes that manual modifications made to the - 3Com 3C15500 | User Guide - Page 697
router for the WAN interface that you wish to monitor then 3Com Network Director will only be able to provide partial monitoring information. Please refer to the user guide for your router allowed by the service level agreement and so take appropriate action. 3Com Network Director allows you to - 3Com 3C15500 | User Guide - Page 698
694 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK For example, the service level agreement for a particular link may provide better-than-best effort service to traffic up to 1Mbps, and then best effort service to all traffic above that. You may decide that it is acceptable to have - 3Com 3C15500 | User Guide - Page 699
sent to that device. Unless explicitly overridden at the device level, devices that appear in more than one subnet, such as routers and layer-3 switches, inherit the whole map settings directly rather than inheriting them from one of their subnets. Specifying Retries and Timeout Periods at the - 3Com 3C15500 | User Guide - Page 700
number of retries and the timeout period for all DNS requests, and lists the DNS servers that will be used for handling these requests. 3Com Network Director uses DNS requests during the discovery process to try to determine the names of discovered IP devices. See "DNS Name Resolution " on page 95 - 3Com 3C15500 | User Guide - Page 701
of Network Discovery. See "IP Ping " on page 93 for more details of this Network Discovery stage. ■ SNMP requests: 3Com Network Director uses Network Discovery stage. Changes made in the Retry/Timeout tab of the Tools > Options dialog box have no effect on service monitors such as the IP Ping Service - 3Com 3C15500 | User Guide - Page 702
698 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 369 Retry/Timeout Tab By default all subnets will inherit their settings from the Tools > Options subsequently discovered either by double-clicking the subnet or by selecting the subnet and selecting Tools > Network Discovery. - 3Com 3C15500 | User Guide - Page 703
/Timeout tab of the Properties dialog box only allows you to change the number of retries and timeout period for the type of requests that 3Com Network Director uses to manage and monitor the device. For example, if a device has SNMP capabilities then you will be able to configure the number of - 3Com 3C15500 | User Guide - Page 704
most end stations, cannot be managed directly by 3Com Network Director and so do not have configurable settings for numbers of retries and timeout periods. Specifying Retries and Timeout Periods in the Network Discovery Wizard By default the Network Discovery wizard uses the numbers of retries and - 3Com 3C15500 | User Guide - Page 705
a subnet in the Retry/Timeout information frame are retained by the subnet after Network Discovery has completed. As a result, subsequent requests used to monitor and manage of time that it will take before 3Com Network Director concludes that a device is not responding. This can slow down the - 3Com 3C15500 | User Guide - Page 706
to respond. If you increase the number of retries to 4 and the timeout period to 6 seconds then this will increase the length of time before 3Com Network Director concludes that an IP address is not going to respond to 30 seconds, five times longer than before. If a large number of the IP addresses - 3Com 3C15500 | User Guide - Page 707
30000 ms. In such situations it is recommended that you do not specify a timeout period less than 6000 ms. 3Com Network Director can generate historical reports on devices in your network. These reports will include IP Ping response times and, for DNS servers, DNS response times. While these provide - 3Com 3C15500 | User Guide - Page 708
identify the local and remote sites with regards to the PC that 3Com Network Director is running on. Where possible, each site should be identified by the only to each subnet that covers that site, but also to each router and layer-3 switch that is located at that site. If you have determined that - 3Com 3C15500 | User Guide - Page 709
device. However, you will double the amount of time it will take before 3Com Network Director determines if there is a problem with the device. Details of how to configure the poll rates used across your network are provided in "Controlling Monitoring Type and Polling Rates" on page 296. Change - 3Com 3C15500 | User Guide - Page 710
you will reduce the number of monitors that state is retrieved for to one (the IP Ping Service monitor), vastly reducing the amount of traffic generated by the monitoring of that device. However, 3Com Network Director will no longer be able to monitor links using that device, will not be able to - 3Com 3C15500 | User Guide - Page 711
3Com recommends that, when monitoring a multi-site network, you do not use automatic monitoring mode. Instead it is recommended that you manually tune the monitoring of your network a problem with the device. However, SNMP traps only monitoring mode does not allow 3Com Network Director to determine - 3Com 3C15500 | User Guide - Page 712
USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK In site, to the network as a whole or to the business. These may include WAN and LAN routers, core switches and critical servers. any monitors on the device other than the IP Ping Service monitor and the monitors that are relevant to the link you - 3Com 3C15500 | User Guide - Page 713
the monitoring modes and poll rates hierarchy, it is important to correctly identify the local and remote sites with regards to the PC that 3Com Network Director is running on. Where possible, each site should be identified by the IP subnets that are unique to that site. If you have determined - 3Com 3C15500 | User Guide - Page 714
710 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK In order to cope with this situation the settings not only to each subnet that covers that site, but also to each router and layer-3 switch that is located at that site. If you have determined that the appropriate monitoring modes - 3Com 3C15500 | User Guide - Page 715
a day-to-day basis, or that are not your direct responsibility, you can simplify navigation. In addition, 3Com Network Director has a limit of 5,000 devices within a single map. If you have a large network then it may not be possible to display all of the important devices in a single map unless you - 3Com 3C15500 | User Guide - Page 716
oversubscribe the WAN links. This could not only cause problems for the Network Discovery process, but could also affect any other applications be discovered, the latency and reliability of the paths between 3Com Network Director and the devices being discovered and the complexity of the devices - 3Com 3C15500 | User Guide - Page 717
you rediscover your network, the more requests 3Com Network Director will make to the devices on your network. It is important that you take this into consideration when determining the scheduling of network discoveries. If you are running 3Com Network Director on a single site network, or if your - 3Com 3C15500 | User Guide - Page 718
714 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Discovery you can do so by canceling the Network Discovery from within the Network Discovery Progress dialog box. Configuring Monitor Thresholds 3Com Network Director can monitor various services on devices, including FTP, HTTP, - 3Com 3C15500 | User Guide - Page 719
Grouping Frame Relay Interfaces Together Your network contains three WAN interfaces that are all connected to the same frame relay cloud. Your service provider, Acme Services, provides the frame relay cloud, but you manage the WAN routers. One of the WAN routers connected to this WAN cloud has - 3Com 3C15500 | User Guide - Page 720
716 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 373 Find Dialog Box - Default WAN 5 Click Find. 6 When the search completes, double-click on the entry for the Default WAN cloud in the - 3Com 3C15500 | User Guide - Page 721
Figure 375 Map Zoomed into Default WAN Cloud Examples 717 8 To view the devices surrounding the Default WAN cloud, zoom out from the map by clicking the Zoom out button in the toolbar, repeatedly. 9 Launch the Add Map Item dialog box by selecting Edit > Add Map Item. 10 Locate the cloud icon in - 3Com 3C15500 | User Guide - Page 722
718 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 376 Adding a Cloud by Drag and Drop 11 Close the Add Map Item dialog box. 12 Select the new cloud in the map. 13 - 3Com 3C15500 | User Guide - Page 723
Figure 377 Properties Dialog Box - General Tab Examples 719 15 Close the Properties dialog box by clicking OK. 16 Locate the three routers that contain the WAN interfaces that are connected to the frame relay cloud. 17 Select their links to the Default WAN cloud. Ensure that nothing - 3Com 3C15500 | User Guide - Page 724
720 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 378 Map - Links Selected 18 Select Edit > Delete, and confirm the deletion. Figure 379 Map - Links Deleted - 3Com 3C15500 | User Guide - Page 725
Examples 721 19 Select one of the routers and the new cloud in the map. Figure 380 Map - Router and New Cloud Selected 20 Select Edit > Add Link to link the router and the new cloud together. - 3Com 3C15500 | User Guide - Page 726
722 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 381 Map - Router and New Cloud Linked 21 Select the new link. 22 Launch the Properties dialog box for that link by selecting Properties from the right-click menu of the link. 23 Select the Ports tab. - 3Com 3C15500 | User Guide - Page 727
Figure 382 Properties Dialog Box - Ports Tab Examples 723 24 Determine whether the router is shown in the From Port frame or the To Port frame. 25 Click the Set button in the frame that shows the router to launch the Set Port dialog box. 26 In the Set Port dialog box select - 3Com 3C15500 | User Guide - Page 728
724 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK 27 Close the Set Port dialog box by clicking OK. 28 Close the Properties dialog Figure 384 Map Showing Labelled Cloud 30 Repeat steps 11 - 20 for each of the other routers that have WAN interfaces connected to the frame relay cloud. - 3Com 3C15500 | User Guide - Page 729
longer shows the other WAN interfaces for the WAN router that has multiple active WAN interfaces. To rectify this, run a rediscovery of one of the subnets that the router is on by selecting the subnet in the map and selecting Tools > Network Discovery. This recreates the representations of the other - 3Com 3C15500 | User Guide - Page 730
726 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 386 Rediscovered Map 32 Finally, relayout the map by selecting View > Relayout Map. - 3Com 3C15500 | User Guide - Page 731
within 3Com Network Director. 1 You examine your network information in order to identify the remote site and find that the remote network is divided into three VLANs, with a subnet associated with each one: ■ The default VLAN contains the network infrastructure devices, including a layer-3 switch - 3Com 3C15500 | User Guide - Page 732
728 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK first VLAN, the database server on the second VLAN and the NBX call processor on the third VLAN. 2 Your network information also indicates that the remote site has a particularly slow connection to the rest of your company's - 3Com 3C15500 | User Guide - Page 733
Figure 389 Network Discovery Wizard Examples 729 5 Click Next to move onto the Specify Subnets step. 6 In the Specify Subnets step, click Add. This launches the Add Subnet dialog box. - 3Com 3C15500 | User Guide - Page 734
730 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 390 Add Subnet Dialog Box 7 In the Add Subnet dialog box enter the subnet address and mask of the subnet associated with the first VLAN. - 3Com 3C15500 | User Guide - Page 735
Examples 731 Figure 391 Add Subnet Dialog Box - Subnet Address and Mask 8 Select the Discover custom ranges: radio button. 9 Click Add to launch the Add Range dialog box. Figure 392 Add Range Dialog Box 10 Edit the Start IP address, setting it to the first IP address in the subnet. - 3Com 3C15500 | User Guide - Page 736
732 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 393 Add Range - Start 11 Edit the End IP address, setting it to the tenth IP address in the subnet. Figure 394 Add Range - End 12 Click OK to add the new range to the list of ranges to discover on the subnet. - 3Com 3C15500 | User Guide - Page 737
Examples 733 Figure 395 Add Subnet Dialog Box - Discover Custom Ranges Selected 13 The Start IP address is already set to the first IP address in the subnet, so edit the End IP address so that it is set to the tenth IP address in the subnet. - 3Com 3C15500 | User Guide - Page 738
734 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 396 Add Subnet Dialog Box - End IP Address Edited 14 Uncheck the Use defaults from Tools > Options dialog box option. - 3Com 3C15500 | User Guide - Page 739
Examples 735 Figure 397 Add Subnet Dialog Box - Use Defaults Option Unchecked 15 Enter the appropriate values in the retries and ms timeout fields, from the numbers of retries and timeout periods that you determined for the various request types. - 3Com 3C15500 | User Guide - Page 740
736 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 398 Add Subnet Dialog Box - Retries and MS Timeouts 16 Click OK to add the subnet to the list of subnets to discover - 3Com 3C15500 | User Guide - Page 741
Examples 737 Figure 399 Network Discovery Wizard - Subnet Added 17 Click Add to launch the Add Subnet dialog box again. 18 In the Add Subnet dialog box enter the subnet - 3Com 3C15500 | User Guide - Page 742
738 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK different devices. See "Configuring Monitoring for a Remote Office" on page 309 for an example of how to configure monitoring for a remote site. Figure 400 Network Discovery Wizard - Monitor Core Devices and Links 28 Click Next to - 3Com 3C15500 | User Guide - Page 743
or password of your NBX call processor from the factory defaults then select the Custom option and enter the appropriate username and password. Figure 402 Network Discovery Wizard - NBX Call Processors 34 Click Next to move onto the Discovery Options step. - 3Com 3C15500 | User Guide - Page 744
740 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 403 Network Discovery Wizard - Discovery Options 35 To simplify the display of the remote site you decide that you do not wish MAC-only devices to be - 3Com 3C15500 | User Guide - Page 745
Examples 741 Figure 405 Network Discovery Wizard - Only IP Devices Checked 37 Click Next twice to move through the rest of the wizard to the Summary step. Figure 406 Network Discovery Wizard - Summary Step 38 Check that the details of the discovery are correct before clicking Finish to discover your - 3Com 3C15500 | User Guide - Page 746
742 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Configuring Service Monitoring Thresholds Using Historical Reports The event log for your network shows that the mail server at one of your remote sites has been consistently slow to respond to queries. After investigation you - 3Com 3C15500 | User Guide - Page 747
Figure 408 Find Dialog Box - Fields Populated Examples 743 5 Click Find. 6 When the search completes, double-click on the entry corresponding to the mail server in the results list. The map zooms to the mail server. Figure 409 Find Dialog Box - Results - 3Com 3C15500 | User Guide - Page 748
744 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK 7 Close the Find dialog box. Figure 410 Map Zoomed to Search Results 8 Launch a historical report for the mail server by selecting Historical Report from the - 3Com 3C15500 | User Guide - Page 749
Minute Average) Examples 745 10 Examine the weekly graphs in the historical report to determine the normal response time range for each of the three services that you are monitoring on the mail server. For example, looking at the SMTP Response time graph in detail shows that the normal response - 3Com 3C15500 | User Guide - Page 750
746 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Figure 412 SMTP Response Time Similar checks Figure 413 Live Graphs Dialog Box 12 In the Live Graphs dialog box, select the IP Ping Service monitor, if it is not already selected. 13 Launch the Threshold Settings dialog box for the - 3Com 3C15500 | User Guide - Page 751
high threshold is set to 2000ms, any future occurrences of the network event that caused the response time of the mail server to increase to problem when it is still occurring. 15 Close the Threshold Settings dialog box by clicking OK. 16 Repeat steps 12 - 15 for the SMTP Service and POP3 Service - 3Com 3C15500 | User Guide - Page 752
748 CHAPTER 17: USING 3COM NETWORK DIRECTOR ON A MULTI-SITE NETWORK Useful Information and References Supported WAN Interface Types 3Com Network Director provides support for several different families of WAN interface types. These are detailed in the table below: Table 109 WAN Interface Types - 3Com 3C15500 | User Guide - Page 753
Useful Information and References 749 WAN Family xDSL FDDI Frame Relay ISDN MPLS PPP SMDS SONET ifType adsl(94) radsl(95) sdsl(96) vdsl(97) msdsl(143) idsl(154) hdsl2(168) shdsl(169) mvl(191) reachDSL(192) fddi(15) frameRelay(32) frameRelayService(44) frameRelayInterconnect(58) frameRelayMPI(92) - 3Com 3C15500 | User Guide - Page 754
above, then it will not be identified as a WAN interface by 3Com Network Director. Key Considerations Problems with Discovering Remote Sites In order to discover a remote site successfully, 3Com Network Director must be configured with appropriate numbers of retries and timeout periods to - 3Com 3C15500 | User Guide - Page 755
appropriate values for the remote site then the problem may be caused by the amount of router, or only shows the WAN router as a MAC-only device in the map. There are various reasons why this may occur: ■ If the WAN router is owned and managed by your service provider then 3Com Network Director - 3Com 3C15500 | User Guide - Page 756
any unauthorized devices. If the PC that 3Com Network Director is running on is not listed in the ACL then 3Com Network Director will be unable to fully discover the router. Please refer to the user guide of your WAN router for details of whether it supports ACL security and how to configure it if - 3Com 3C15500 | User Guide - Page 757
18 NBX SUPPORT Overview This chapter describes how to administer a 3Com NBX voice system using 3Com Network Director. 3Com Network Director gives you the option to discover equipment from the 3Com SuperStack3 NBX and 3Com NBX 100 networked telephony solutions. Once the voice equipment has been - 3Com 3C15500 | User Guide - Page 758
18: NBX SUPPORT Key Concepts This section outlines the key concepts of managing an NBX system using 3Com Network Director. How 3Com Network Director Discovers the Phone Network In the 3Com Network Director Network Discovery, you can specify if you have a NBX system on your network. If you - 3Com 3C15500 | User Guide - Page 759
NBX PcXSet PC The NBX chassis is not displayed directly on the 3Com Network Director map. Instead, NBX Call Processors and line cards are represented individually as described below: NBX Call Processor 3Com Network Director shows the NBX Call Processor on the map. The NBX Call Processor is shown - 3Com 3C15500 | User Guide - Page 760
756 CHAPTER 18: NBX SUPPORT Analog Terminal Adapter and Analog Terminal Card Each high severity event is logged against the phone. ■ IP Phones: 3Com Network Director checks the availability of IP phones using the IP Ping Service monitor. Whenever the phone stops responding, it becomes red on the - 3Com 3C15500 | User Guide - Page 761
following section describes how to discover and manage an NBX system using 3Com Network Director. Discovering the NBX Voice Network NBX Voice Network Step After you specified the community strings on your network within the Network Discovery Wizard you can specify whether or not you have an NBX - 3Com 3C15500 | User Guide - Page 762
you do not know the IP address of the NBX Call Processors on your network, and all NBX Call Processors use the same custom username/password. During the discovery process, when 3Com Network Director finds an NBX Call Processor on the network, it will try the following username/password combinations: - 3Com 3C15500 | User Guide - Page 763
defaults Add NBX Call Processor/Modify NBX Call Processor Click on the Add button to specify the settings for an NBX Call Processor on your network, as shown in Figure 418: Figure 418 Add NBX Call Processor Click on the Modify button to alter the settings for an NBX Call Processor - 3Com 3C15500 | User Guide - Page 764
760 CHAPTER 18: NBX SUPPORT Figure 419 Modify NBX Call Processor The Add NBX Call Processor and Modify NBX Call Processor is not in the IP address ranges for this discovery. 3Com Network Director will only attempt to communicate with NBX Call Processors which it considers to be part of the current - 3Com 3C15500 | User Guide - Page 765
the incoming and outgoing phone calls on your voice system, when the NBX Call Processor stops responding to the IP Ping Service and its icon on the map turns red, 3Com Network Director will also turn the icons for all monitored phones on the map managed by this processor to red, to indicate that - 3Com 3C15500 | User Guide - Page 766
762 CHAPTER 18: NBX SUPPORT ■ IP Ping Service: 3Com Network Director checks the availability of the phone using the ICMP Ping echo. Note that this monitor is only available for IP phones. Because 3Com Network Director polls the NBX Call Processor rather than the phone itself to retrieve the phone - 3Com 3C15500 | User Guide - Page 767
Components 763 Figure 420 Context Menu for the NBX Call Processor This will select all phones and line cards on the map that this NBX Call Processor manages. If several NBX Call Processors are selected, and the Select Related Phones option is used, all phones and line cards managed by the selected - 3Com 3C15500 | User Guide - Page 768
764 CHAPTER 18: NBX SUPPORT Finding out Which NBX Call Processor is Associated with a Phone 3Com Network Director allows you to find 422 Context Menu for the Phone or Line Card As a result, the 3Com Network Director map will navigate and zoom into the NBX Call Processor that manages this phone - 3Com 3C15500 | User Guide - Page 769
Phone Understanding Voice-related 3Com Network Director Events 3Com Network Director notifies you of network problems that might affect the resolves when the NBX Call Processor becomes available again. If the HTTP service becomes unavailable on the NBX Call Processor, an event will be generated - 3Com 3C15500 | User Guide - Page 770
applies to phones that have an IP address assigned. This event resolves when the phone responds to the IP Ping Service again. ■ The phone status has changed to Offline: 3Com Network Director polled the NBX Call Processor and found that the phone Status is now Offline. This event resolves when the - 3Com 3C15500 | User Guide - Page 771
instead of the home page. Launching NetSet for a phone or line card There are several ways to launch NetSet for a phone or line card using 3Com Network Director: By selecting the phone or line card icon on the map, then selecting the Device > Web Management menu option on the main menu. ■ By right - 3Com 3C15500 | User Guide - Page 772
768 CHAPTER 18: NBX SUPPORT Examples Discovering Several You want to discover several NBX Call Processors on your network NBX Call Processors simultaneously or discover your whole NBX system at once, where each Simultaneously NBX Call Processor uses a different password. To discover multiple NBX - 3Com 3C15500 | User Guide - Page 773
the alert types of your choice. Useful Information and References NBX system The 3Com NBX communications system delivers robust call-processing features coupled with telephony applications over your network. 3Com NBX systems are designed for: ■ Small to midsize businesses and branch offices with - 3Com 3C15500 | User Guide - Page 774
SUPPORT NBX Call Processor The NBX Call Processor is at the heart of your telephony system. It manages incoming and outgoing calls to and from the phones on your network the client software you Considerations Troubleshooting Some manually. ■ The phone is not managed by the NBX Call Processor anymore. - 3Com 3C15500 | User Guide - Page 775
Key Considerations 771 The phone was added manually If you added a phone on the map using the the NBX Call Processor. ■ There is a problem with the HTTP service for the NBX Call Processor. ■ The NBX Call Processor stopped responding during the network discovery. The display of end stations in the - 3Com 3C15500 | User Guide - Page 776
and password is the cause of the problem, select the NBX Call Processor icon on the map and call the Device > Web management menu option. This will launch NetSet in your default browser. If you are not required to log in, this means 3Com Network Director is using the correct username and password - 3Com 3C15500 | User Guide - Page 777
complete, the phones should be visible. There is a problem with the HTTP service for the NBX Call Processor 3Com Network Director uses the HTTP protocol to communicate with the NBX Call Processor. If this service is malfunctioning, 3Com Network Director could fail to retrieve the list of phones for - 3Com 3C15500 | User Guide - Page 778
a lot of unconnected phones on the map? 3Com Network Director successfully discovered your NBX network, but a number of phones are displayed at the top-left corner of the map, unconnected. This means 3Com Network Director did not find any network node, router, switch, or hub, connected to that phone - 3Com 3C15500 | User Guide - Page 779
network but is unconnected, this means that none of the network nodes on the network (routers, switches 3Com Network Director map. The network device the phone is connected to has not been discovered If the network device that the phone is connected to has not been discovered by 3Com Network Director - 3Com 3C15500 | User Guide - Page 780
776 CHAPTER 18: NBX SUPPORT For phones that are using the default user name, 3Com Network Director will show a label using the extension number, rather than showing a label of New User, which could cause a number of phones to use the same label. - 3Com 3C15500 | User Guide - Page 781
Overview This chapter describes how 3Com Network Director can be used to manage the software configuration of the 3Com devices on your network. You can use Backup, Restore and Setup to: ■ Save the software configuration of your 3Com devices. ■ Apply a software configuration, saved in the backup - 3Com 3C15500 | User Guide - Page 782
The Backup feature is designed to help you store the software configuration of your 3Com devices. The Backup feature associates each saved backup with the The Setup feature enables you to apply a software configuration from either a saved backup or a 'live' network device to a set of target devices - 3Com 3C15500 | User Guide - Page 783
. Backup Components This section describes how to use the Backup feature of 3Com Network Director. Device Backup You can create and manage backup files for any of the supported 3Com Wizard devices on your network. Select Device > Backup to open the Device Backup Wizard. Within the Device Backup - 3Com 3C15500 | User Guide - Page 784
type after adding and configuring a large number of devices of a particular type on your network. ■ Custom - which allows you to choose which of the supported 3Com devices in your network you wish to back up. 3Com recommends that you backup any major change you make to the configuration of your - 3Com 3C15500 | User Guide - Page 785
step of the wizard is only displayed if you have selected the Custom option on the Backup Type step. If you selected devices in the network before starting the Device Backup, those devices are listed on this page by default as shown in Figure 425 Figure 425 Specify Devices to Backup - 3Com 3C15500 | User Guide - Page 786
782 CHAPTER 19: BACKING UP DEVICE CONFIGURATIONS Figure 426 Specify Telnet Login Information Step If this step is displayed, you will need to provide the Telnet username and password for the device you have selected to backup. ■ Username - specifies the username used to log in to the selected - 3Com 3C15500 | User Guide - Page 787
Backup Components 783 Figure 427 Device Backup Wizard - Backup Identification You must provide a label, using a maximum of 20 characters, to be associated with all backups created by the current backup operation. You can, if you wish, provide a longer description of the backups in the comments field - 3Com 3C15500 | User Guide - Page 788
784 CHAPTER 19: BACKING UP DEVICE CONFIGURATIONS Figure 428 Device Backup Wizard - Scheduling You can review or cancel a scheduled Device Backup operation from the Scheduled Tasks dialog box which can be launched from Tools > Scheduled Tasks. Summary Step and Progress Unless you have chosen to - 3Com 3C15500 | User Guide - Page 789
backup file for each device is created. See "Backup Files" on page 786 for more details. ■ The devices that could not be backed up. 3Com Network Director reports a reason for each failure. You can view the Backup Summary report at any time after the operation has completed from the History tab of - 3Com 3C15500 | User Guide - Page 790
is provided, see "Backup Files" on page 786 for more information. ■ The 3Com devices on your network that have no backups associated with them. For devices that are not supported by Backup, Restore and Setup, 3Com Network Director provides further details on the reason why. Backup Files The Device - 3Com 3C15500 | User Guide - Page 791
Restore Components 787 Restore Components This section describes how to use the Restore feature of 3Com Network Director. Device Restore You can apply a saved backup to either the device from which the backup Wizard was taken or to a replacement device that has the - 3Com 3C15500 | User Guide - Page 792
788 CHAPTER 19: BACKING UP DEVICE CONFIGURATIONS Figure 429 Device Restore Wizard - No Backups Found If your target device is not a replacement for another device and there are no backup files associated with your target device, the Device Restore Wizard cannot continue. The Restore operation can - 3Com 3C15500 | User Guide - Page 793
Restore Components 789 Figure 430 Device Restore Wizard - Specify Device Being Replaced The table shows the name of all devices that have one or more existing backups and have the same physical configuration as your target device. The list of devices is taken from the saved backup files. The device - 3Com 3C15500 | User Guide - Page 794
790 CHAPTER 19: BACKING UP DEVICE CONFIGURATIONS Figure 431 Device Restore Wizard - Specify Backup To Use The table provides the following information about each backup to help you identify the one to apply to the target device: ■ Date - the date on which the backup was created. ■ Label - the label - 3Com 3C15500 | User Guide - Page 795
Device Restore operation displays a warning dialog box. The dialog box advises you to ensure that the target device is isolated from your network before proceeding. You must acknowledge this warning before continuing. See "Key Considerations" on page 808 for further information. During the Device - 3Com 3C15500 | User Guide - Page 796
> Reports. Setup Components The following section describes how to use the Device Setup feature of 3Com Network Director. Device Setup Wizard You can apply a software configuration to one or more target devices. The software configuration you choose to apply to the target device can be either the - 3Com 3C15500 | User Guide - Page 797
shown in Figure 433. Figure 433 Device Setup Wizard - Configuration Source Type Specify Source Device Step When you choose to use a live device on your network as the source software configuration, the Device Setup Wizard shows the Specify Source Device step as shown in Figure 434: - 3Com 3C15500 | User Guide - Page 798
Device Setup Wizard - Specify Source Device From this step you can select any one of the supported devices in the current map. The device you select here will be used as the source of the software configuration applied to your target devices. Specify Source Backup Step When you choose to use an - 3Com 3C15500 | User Guide - Page 799
. The backup you select here will be applied to your target devices. Specify Devices to Setup Step This step presents all the supported devices in your current map that have the same physical configuration as the source of the software configuration you have chosen to apply as shown in Figure 436: - 3Com 3C15500 | User Guide - Page 800
BACKING UP DEVICE CONFIGURATIONS Figure 436 Device Setup Wizard - Specify Devices To Setup Select the target devices that you wish to apply the chosen software configuration to. Summary Step and Progress The Device Setup operation is ready to begin once you select Finish on the Summary step as shown - 3Com 3C15500 | User Guide - Page 801
Device Setup operation displays a warning dialog box. The dialog box advises you to ensure that the target devices are isolated from your network before proceeding. You must acknowledge this warning before continuing. See "Key Considerations" on page 808 for further information. During the Device - 3Com 3C15500 | User Guide - Page 802
of the source device or backup that provided the software configuration. ■ The devices that were successfully configured by the Device Setup operation. ■ The devices that could not be configured by the Device Setup operation. 3Com Network Director reports a reason for each failure. You can view the - 3Com 3C15500 | User Guide - Page 803
you have decided that you need a backup of the software configuration of all devices on your network. You decide to schedule the operation to take place 424 3 Select the Backup all 3Com devices radio button to back up all of the supported 3Com devices in the network, then select Next. 4 The wizard - 3Com 3C15500 | User Guide - Page 804
select Finish to schedule the Device Backup to start later in the evening. When the Device Backup operation runs, it will attempt to backup the software configuration of all the supported devices that are in the map. - 3Com 3C15500 | User Guide - Page 805
do this: 1 If possible, keep the replacement device isolated from your network in a staging area. Configure the replacement device with an IP address either a direct Ethernet connection or a connection through a simple hub or switch. 3 Create a new map and select Add Device to add the replacement - 3Com 3C15500 | User Guide - Page 806
Now that the replacement device has a suitable software configuration to be swapped in to the network, you can configure it with the IP Devices You have decided to upgrade a large number of legacy switches at the edge of your network to Fast Ethernet devices. All of the new devices require the - 3Com 3C15500 | User Guide - Page 807
to find the source device more easily when using the Device Setup Wizard. 3 Connect the management station to all of the new switches using an Ethernet connection through a hub or switch. 4 Using the Add Device option or by importing the IP addresses from a CSV file, create a new map and add the new - 3Com 3C15500 | User Guide - Page 808
port security and VLAN settings, you can configure each of the switches with any individual settings that they require. You should also give each device the IP address that you will use to manage it once it has been added to your network. 10 Finally, disconnect the new devices from your management - 3Com 3C15500 | User Guide - Page 809
this feature in the agent software. Refer to the software user documentation for details on how to obtain a License Key. ■ Not Supported - one or more units in the device list are not supported. Please ensure that you have downloaded and installed the latest service pack, if available, using Live - 3Com 3C15500 | User Guide - Page 810
Supported Parameters by Device Family Device Family Switch 610/630 Switch 1100 Family Switch 3300 Family Switch 4300 Switch 4400 Family Switch 4005 Switch 4007/4007R Wireless LAN Access Point 8000 Supported of the software parameters that are supported. The following network interface settings - 3Com 3C15500 | User Guide - Page 811
of Backup File (Body Section) Switch 610/630 Switch 1100 Family Switch 3300 Family Switch 4300 The entire software configuration of the device saved in a readable XML format. The software configuration can be applied to a device only using 3Com Network Director. Switch 4400 Family A reference to - 3Com 3C15500 | User Guide - Page 812
are discarded are not deleted from your hard disk but are moved to the following directory: \backups\lost The default install location of 3Com Network Director is: C:\Program Files\3Com\3Com Network Director - 3Com 3C15500 | User Guide - Page 813
software configuration. The initialization of a device that is connected to your network can cause network loops. It is particularly likely that a network 3Com strongly recommends that you isolate target devices from the rest of the network simple unmanaged hub or switch. If the restored - 3Com 3C15500 | User Guide - Page 814
810 CHAPTER 19: BACKING UP DEVICE CONFIGURATIONS - 3Com 3C15500 | User Guide - Page 815
Update checks the 3Com server for available software updates and filters the updates so that only files that apply will be downloaded. Live Update also manages the download of these files. By downloading and installing 3Com Network Director updates, you can ensure that 3Com Network Director is up-to - 3Com 3C15500 | User Guide - Page 816
the Internet. Service Packs A Service Pack is an installable software component that keeps 3Com Network Director and related applications such as 3Com® Router Manager and 3Com® Switch Manager up-to-date. It provides updates such as: ■ Latest bug fixes. ■ Day-one management support for the latest - 3Com 3C15500 | User Guide - Page 817
the available updates and lets you choose the ones you want to download. Live Update Setup The Live Update Setup Wizard is launched the first time you use Live Wizard Update. You can choose the way 3Com Network Director connects to the Internet and specify the proxy settings. Connection Type Step - 3Com 3C15500 | User Guide - Page 818
information on web browsers supported by 3Com Network Director see "Web Browser" on page 859. 3Com Network Director can only detect your other web browsers. If 3Com Network Director cannot detect the default web browser settings then you can configure the proxy settings manually by selecting the Use - 3Com 3C15500 | User Guide - Page 819
server requires authentication. If this option is not selected, the Username and Password fields will be ignored. ■ Username - enter the username that 3Com Network Director should use to access the proxy server. This field can only be edited if the My proxy server requires authentication checkbox is - 3Com 3C15500 | User Guide - Page 820
server to connect to the Internet ■ or if you selected Use custom proxy settings in the Connection Type step. ■ Proxy Port - the port that 3Com Network Director will connect to on the proxy server. This information is displayed if: ■ you selected Use Web browser settings and your default browser is - 3Com 3C15500 | User Guide - Page 821
requires authentication checkbox in the Use Custom Settings step. ■ Password - the password that 3Com Network Director will use to connect to the proxy server. This information is displayed only if you types of updates File Groups Dialog that are available to download as shown in Figure 445. Box - 3Com 3C15500 | User Guide - Page 822
the initial transaction between your PC and the Live Update server. The Status field will show one of the following: ■ Searching for available updates - 3Com Network Director is connecting to the Live Update server and looking for the updates that are relevant to you. ■ Available updates retrieved - 3Com 3C15500 | User Guide - Page 823
of file group available for download. 3Com Network Director supports the following file groups: ■ 3Com Network Director Update - this group contains the latest software updates for 3Com Network Director, this can be a Service Pack or a main release. ■ Latest 3Com Product News - this group contains - 3Com 3C15500 | User Guide - Page 824
the Load column to select which files you want to download. Figure 446 Live Update - Select File Groups - Group Name The title of the dialog box corresponds to the file group selected. For example, if the file group selected is 3Com Network Director Update, the title of the dialog box will be Select - 3Com 3C15500 | User Guide - Page 825
group as follows: ■ If the file group is 3Com Network Director Update, this is the version of the update as well as the main version it applies to. If the file group is Latest 3Com Product News, 3Com Router Manager Updates or 3Com Switch Manager Updates, the version is not applicable (N/A). ■ File - 3Com 3C15500 | User Guide - Page 826
and Settings\My Profile\Local Settings\Temp). The 3Com Router Manager Updates and 3Com Switch Manager Updates files are downloaded to the patches folder in the 3Com Network Director install directory (usually C:\Program Files\3Com\Network Director\patches). Changing the The Internet tab in the - 3Com 3C15500 | User Guide - Page 827
setting if the default browser on your PC is supported by 3Com Network Director. ■ Direct connection to the Internet - 3Com Network Director connects directly to the Internet through the LAN. ■ Custom proxy settings - 3Com Network Director uses a proxy server that you specify to connect to - 3Com 3C15500 | User Guide - Page 828
uses to connect to the Internet. This field is only available when Custom proxy settings is selected. ■ Proxy Port - the port that 3Com Network Director uses to connect to the proxy server. This field is only available when Custom proxy settings is selected. ■ My proxy server requires authentication - 3Com 3C15500 | User Guide - Page 829
449 Options - General Components 825 Live Update Activity The Live Update Activity report can be used to review the download Report status of all the software updates downloaded using Live Update. To view the report: 1 Select the Tools > Reports menu option. 2 In the Generate Reports tab, select - 3Com 3C15500 | User Guide - Page 830
your version of 3Com Network Director to ensure it supports Supported these devices. To do this: 1 Click Live Update on the toolbar. 2 In the Live Update Setup Wizard, select Use Browser Settings and click Next. 3 Click Finish. 3Com Network Director will check for available software updates on the - 3Com 3C15500 | User Guide - Page 831
that this update adds support for your new 3Com devices. 7 Click OK to return to the Live Update -Select File Groups dialog box. 8 Click OK to download the update. 9 When the download is complete you will be asked to restart 3Com Network Director. Click Yes to restart. The downloaded update will be - 3Com 3C15500 | User Guide - Page 832
LIVE UPDATE Solution 1 - Automatic Configuration using the Live Update Setup Wizard This is the preferred method if your default browser is supported by 3Com Network Director and is configured to use the proxy server. 1 Select the Tools > Options... menu option. 2 Click the General tab. 3 Click Show - 3Com 3C15500 | User Guide - Page 833
Examples 829 Solution 2 - Manual Configuration using the Options Dialog Box This is the preferred method if your default browser is not supported by 3Com Network Director or if your browser is not configured to use the proxy server. 1 Select the Tools > Options... menu option. 2 Click the Internet - 3Com 3C15500 | User Guide - Page 834
Next. 3 Click Finish. 3Com Network Director will check for available software updates on the Live Update server. 4 The Live Update - Select File Groups dialog box will display any available updates. If there is an update available for 3Com Router Manager, the 3Com Router Manager Updates file group - 3Com 3C15500 | User Guide - Page 835
Live Update. The Proxy Settings are not Retrieved A description of this problem is as follows: ■ Your browser is using a proxy server to The most likely reason for this is that your browser is not supported by 3Com Network Director. A suggested solution is as follows: 1 Open your browser and - 3Com 3C15500 | User Guide - Page 836
in the Live Update Select File Groups dialog box until the total download size files into the free disk space. Cannot Find the Downloaded 3Com Router Manager Updates on Disk A description of this problem is as follows: After downloading a 3Com Router Manager update, you did not make a note of the - 3Com 3C15500 | User Guide - Page 837
column. Once you know the file name, you can find the update in the folder where 3Com Router Manager updates are located. The 3Com Router Manager Updates files are downloaded to the patches folder in the 3Com Network Director install directory (usually C:\Program Files\3Com\Network Director\patches) - 3Com 3C15500 | User Guide - Page 838
834 CHAPTER 20: LIVE UPDATE - 3Com 3C15500 | User Guide - Page 839
may not be supported unless you have installed the latest Service Pack. Bulk Configuration Table 113 Bulk Configuration: Supported 3Com Devices and Minimum Agent Versions Device Type 3Com SuperStack II Switch 610 Minimum Agent Version 2.60 3Com SuperStack II Switch 630 2.60 3Com SuperStack II - 3Com 3C15500 | User Guide - Page 840
836 APPENDIX A: SUPPORTED DEVICES VLAN Configuration Device Type 3Com SuperStack 3 Switch 4300 3Com SuperStack 3 Switch 4400 family 3Com SuperStack 3 Switch 4900 family 3Com Switch 4050 3Com Switch 4060 3Com Switch 4070 3Com Switch 4005 and modules Minimum Agent Version 1.10 3.0 3.0 3.0 3.0 3.0 - 3Com 3C15500 | User Guide - Page 841
, Restore and Setup Device Type 3Com Switch 4005 and modules 3Com Switch 4007 and modules 3Com CoreBuilder 9000 and modules 3Com Switch 7700 3Com Switch 7700R Minimum Agent Version 1.22 3.00 3.00 1.0 1.0 The 3Com Switch 4007 and 3Com CoreBuilder 9000 do not support VLAN configuration on the EME - 3Com 3C15500 | User Guide - Page 842
838 APPENDIX A: SUPPORTED DEVICES Device Type 3Com Wireless Access Point 8750 3Com Network Jack family 3Com Switch 7700 3Com Switch 7700R 3Com Router 3012 3Com Router 3013 3Com Router 3015 3Com Router 3016 3Com Router 3018 3Com Router 5009 3Com Router 5231 3Com Router 5640 3Com Router 5680 Minimum - 3Com 3C15500 | User Guide - Page 843
may fail if the target device has multiple IP addresses, but not all of these addresses have been detected by 3Com Network Director. This can occur if the device is allocated additional IP addresses after the network map is discovered. To prevent this from occurring, please ensure that the - 3Com 3C15500 | User Guide - Page 844
5 In order to prevent loss of communication between Network Director and the target device, the Device Restore operation will not change the IP address, subnet mask or default gateway being used by the device prior to the operation being started. 6 Switch 1100/3300 - The Device Restore operation may - 3Com 3C15500 | User Guide - Page 845
the restore, manually reboot the device. Agent Update Table 116 shows the devices that are supported by the Agent Update operation. Table 116 Agent Update: Supported 3Com Devices and Minimum Agent Versions Device Type Minimum Agent Version 3Com SuperStack II Switch 610 - 3Com SuperStack II - 3Com 3C15500 | User Guide - Page 846
SuperStack 3 Webcache 3000 3Com Network Jack family 3Com Router 3012 3Com Router 3013 3Com Router 3015 3Com Router 3016 3Com Router 3018 3Com Router 5009 3Com Router 5231 3Com Router 5640 3Com Router 5680 3Com SuperStack 3 Switch 3200 family 3Com SuperStack 3 Switch 4800 family 3Com SuperStack II PS - 3Com 3C15500 | User Guide - Page 847
the agent software. In particular, when updating 3Com SuperStack II Switch 1100/3300 a problem, then you should use the Software Update Utility to update the device directly. 6 Switch 4900 when the network is less busy. 7 Webcache 1000/3000 - Agent update is only supported from software version 2.00 - 3Com 3C15500 | User Guide - Page 848
To prevent this problem from occurring, you should ensure that the unit in which the Layer 3 module resides has an IP address. 11 The Agent Update operations may fail if the target device has multiple IP addresses, but not all of these addresses have been detected by 3Com Network Director. This can - 3Com 3C15500 | User Guide - Page 849
where you installed 3Com Network Director. Table 117 RMON: Supported 3Com Devices Device Type 3Com SuperStack II/SuperStack 3 Switch 1100 family 3Com SuperStack II/SuperStack 3 Switch 3300 family 3Com SuperStack 3 Switch 4200 family 3Com SuperStack 3 Switch 4300 3Com SuperStack 3 Switch 4400 family - 3Com 3C15500 | User Guide - Page 850
provided by any specific device in this list, consult the User Guide for the device itself. There are known issues with RMON support in agent version 1.10 of the 3Com Router 3000 and 3Com Router 5000 families. Please upgrade to at least version 1.20 if you wish to use RMON monitoring. Devices - 3Com 3C15500 | User Guide - Page 851
Supported Devices 3Com SuperStack II 9300 3Com SuperStack II Desktop Switch 3Com SuperStack II Dual Speed Hub 3Com SuperStack II Hub 10 3Com SuperStack II Hub 100 3Com SuperStack II PS Hub 3Com SuperStack II Switch 1000 3Com SuperStack II Switch 1100 3Com SuperStack II Switch 2200 3Com SuperStack - 3Com 3C15500 | User Guide - Page 852
Switch 7700 Router Manager The devices supported by the Router Manager feature are shown in Table 120: Table 120 Router Manager: Supported Devices Supported Devices 3Com Router 5009 3Com Router 5231 3Com Router 5640 3Com Router 5680 3Com Router 3012 3Com Router 3013 3Com Router 3015 3Com Router - 3Com 3C15500 | User Guide - Page 853
Device Warranty 849 Supported Devices 3Com LinkSwitch 1000 3Com LinkSwitch 2200 3Com LinkSwitch 3000 3Com NetBuilder II, SuperStack II NetBuilder 20x, SuperStack II NetBuilder 42x 3Com Network Jack 200 3Com OfficeConnect Hub 8/TPM 3Com OfficeConnect Switch 140M 3Com SuperStack 3 Server Load Balancer - 3Com 3C15500 | User Guide - Page 854
9000 and modules 3Com Switch 4050 3Com Switch 4060 3Com Switch 4070 3Com Wireless LAN Access Point 8000/8200 General Restrictions with Supported Devices By default, SNMP is disabled on the 3Com Switch 7700. To allow full identification and topology by 3Com Network Director, enable SNMP V1 - 3Com 3C15500 | User Guide - Page 855
B 3COM DEVICE VIEW This appendix describes how 3Com Device View enables you to monitor and set up the 3Com hubs, switches, bridges/routers and remote access devices on your network. The following is covered in this appendix: ■ About Device View ■ Management Support Matrix - 3Com 3C15500 | User Guide - Page 856
device and port parameters and collect detailed statistics. Device View manages 3Com small office, system and multi-function hubs, switches, remote access devices and power systems. For a list of supported devices in this release of 3Com Network Director refer to Appendix A on page 851. Management - 3Com 3C15500 | User Guide - Page 857
Support Matrix 853 Monitor status Setup device Use SuperStack groups Upgrade agent software Manage ports Manage console port Manage bridging Create resilient links Create VLANs View statistics Set up traps Manage security ✓✓ ✓✓ ✓ 3Com OfficeConnect Remote 531 3Com OfficeConnect Switch - 3Com 3C15500 | User Guide - Page 858
software Manage ports Manage console port Manage bridging Create resilient links Create VLANs View statistics Set up traps Manage security 854 APPENDIX B: 3COM DEVICE VIEW 3Com SuperStack 3 Switch 3300 3Com SuperStack 3 Switch 4400-24 3Com SuperStack 3 Switch 4400-48 3Com Superstack 3 Switch - 3Com 3C15500 | User Guide - Page 859
, contact 3Com or your authorized 3Com reseller. Value-added services can include 24x7 telephone technical support, software upgrades, onsite assistance or advance hardware replacement. Experienced engineers are available to manage your installation with minimal disruption to your network. Expert - 3Com 3C15500 | User Guide - Page 860
helps you install, configure and troubleshoot 3Com desktop and server NICs, wireless cards and Bluetooth devices. This diagnostic software is located at: http://www.3com.com/prodforms/software/connection_assistan t/ca_thankyou.html Access Software Downloads Software Updates are the bug fix - 3Com 3C15500 | User Guide - Page 861
or 00800 0638 3266 800 6161 463 080 333 3308 00801 611 261 001 800 611 2000 You can also obtain support in this region using the following e-mail: [email protected] Or request a repair authorization number (RMA) by fax using this number: + 65 543 6348 Europe, Middle East, and Africa - 3Com 3C15500 | User Guide - Page 862
Tobago Uruguay Venezuela Virgin Islands You can also obtain support in this region using the following: Spanish speakers, enter the URL: http://lat.3com.com/lat/support/form.html Portuguese speakers, enter the URL: http://lat.3com.com/br/support/form.html English speakers in Latin America should - 3Com 3C15500 | User Guide - Page 863
Explorer 4.x and above There is no support for any version of Netscape 6. There may be restrictions on the web browsers supported by WebHelp. Additional Software Adobe Acrobat Reader is required to view the PDF files installed with Required 3Com Network Director. This is included on the CD. - 3Com 3C15500 | User Guide - Page 864
■ 512MB RAM ■ 250MB free hard disk space ■ 1024 x 768 graphics capabilities with 256 colors ■ CD-ROM drive ■ Network adapter card The recommended hardware specifications for 3Com Network Director is: ■ IBM PC or compatible, with 1GHz Pentium III processor, or above ■ 1GB RAM or more ■ 1Gb free - 3Com 3C15500 | User Guide - Page 865
E REPORT EXAMPLES Overview This appendix contains examples of the following type of report: ■ Discovery Report ■ Misconfigurations and Optimizations Report - 3Com 3C15500 | User Guide - Page 866
Report This section contains two Discovery Report examples. Discovery Report 3Com Network Director Example Discovery Report This report lists any problems that 3Com Network Director encountered whilst discovering devices on your network. Report created: February 5, 2002 12:06 PM Map: edin-test - 3Com 3C15500 | User Guide - Page 867
with an unknown version of the management agent software The application could not determine the agent software version. It is therefore likely that it is segments Port Switch Hub 40 and 50 allowed the separation of groups of ports into segments. 3Com Network Director does not support this scenario - 3Com 3C15500 | User Guide - Page 868
problem that has occurred earlier such as losing communication with one of the switches, or possibly if no MAC addresses were obtained for the device. 3Com Network Director is not supported by 3Com Network Director This was originally added when support was included for the switch 4007. Because - 3Com 3C15500 | User Guide - Page 869
device. This implies there is a loop in the network. 3Com Network Director may not represent the topology of the network accurately. Device Learned On Multiple Ports Switch4400-6 Switch 3300 00-30-1e-c6-40-38 Learned By Device Switch 3300 Switch4400-6 Switch4400-6 Ports Learned On Port 24 Port - 3Com 3C15500 | User Guide - Page 870
866Appendix E: REPORT EXAMPLES Network Configuration 1 Bridging between VLANs can cause the same MAC address to appear on different ports. See example below. If the host on VLAN1 sends a packet to the server on VLAN2, the packet first goes to the switch and is learned on port X in VLAN1. The packet - 3Com 3C15500 | User Guide - Page 871
Configuration 2 Spanning Tree has been disabled on this network and instead VLANs are used to avoid a network loop. This means a user can run traffic over all the links on their network as opposed to having some blocked by Spanning Tree. However, this means that the MAC address of the PC can appear - 3Com 3C15500 | User Guide - Page 872
legal configuration and the VLAN will still work, it is good practice to use the same VLAN ID consistently when configuring a VLAN. 3Com Network Director will treat these as three separate VLANs. As a result, the Show VLANs toolbar and the Find dialog will list three separate VLANs: Accounts - 3Com 3C15500 | User Guide - Page 873
If the same VLAN ID had been used on all three switches, for example ID=4, then 3Com Network Director would only list one VLAN in the Show VLANs toolbar and the Find dialog: Accounts (ID=4) A more likely use of inconsistent VLANs is shown below: One router is using VLAN ID=2 for subnet A, the other - 3Com 3C15500 | User Guide - Page 874
EXAMPLES For example, the configuration below would be reported as a misconfiguration: The same VLAN (ID=2) is configured on three switches with three different names. 3Com Network Director will choose one of the configured names to represent the VLAN. This name will be used to display the VLAN in - 3Com 3C15500 | User Guide - Page 875
switches in the XRN Distributed Fabric to act as a single logical router. This provides router resiliency in the event of failure in one of the interconnected switches protocol can automatically resolve network loops and increase support LACP, and must be manually enabled. Note that manually - 3Com 3C15500 | User Guide - Page 876
Web Cache Redirection The Webcache Redirection feature of 3Com switches allows web traffic passing through the switch to be transparently redirected to a Webcache on the network. If a switch can support Webcache Redirection, 3Com Network Director provides the ability to enable Redirection via the - 3Com 3C15500 | User Guide - Page 877
to be enabled. As an example, if a Switch 4400 and a Webcache were discovered but there were Redirection - device not directly connected to router This report will be generated when a in the stacked device either ■ do not have the supporting firmware ■ the units in the stack have different versions - 3Com 3C15500 | User Guide - Page 878
. To take advantage of inline mode, the Webcache must have both the LAN and WAN ports connected. For this network configuration, you are recommended to change the Webcache to transparent mode instead of inline mode, and enable Layer Redirection on your Layer 4 capable device so - 3Com 3C15500 | User Guide - Page 879
. Already Redirecting to Webcache Redirection is already enabled from this switch to this Webcache. This will result in the following status is working but redirection is not being performed. Please consult your Webcache user guide. This may be due to the Webcache being attached to a port that - 3Com 3C15500 | User Guide - Page 880
community strings have been changed on the switch and 3Com Network Director can no longer write to the device. This will result in the following response being returned to the client browser: Unable to configure Webcache redirection. There was a problem communicating with the device. Click the back - 3Com 3C15500 | User Guide - Page 881
. If the status of this MIB object could not be determined, for example, the community strings have been changed on the Webcache and 3Com Network Director can no longer read from the device. This will result in the following response being returned to the client browser: Unable to determine the - 3Com 3C15500 | User Guide - Page 882
to the Misconfigurations and Optimizations report. Unsuccessful Configuration There was some problem which prevented 3Com Network Director writing the new cache mode to the device. For example, the community strings that 3Com Network Director has for the device are no longer valid - the device - 3Com 3C15500 | User Guide - Page 883
If the cache mode is discovered to be transparent inline mode, the cache mode will not be changed by any requests from 3Com Network Director Misconfigurations and Optimizations report. The following response will be returned to the client browser: The Webcache is operating in an inline configuration - 3Com 3C15500 | User Guide - Page 884
Webcache Redirection is enabled on the Switch 4924, there will be no redirection Software Releases Version 1.0 of the Webcache agent supports only two caching modes ■ proxyMode(1) ■ transparentMode(2) however, subsequent agent releases support . Therefore 3Com Network Director does not wait for - 3Com 3C15500 | User Guide - Page 885
Network Director. If the traffic server restart fails, the Webcache internal recovery mechanism will attempt to restore the device. 3rd Party Devices Webcache Redirection will only be offered between 3Com devices capable of redirection and 3Com Webcaches. There are no plans at present to support - 3Com 3C15500 | User Guide - Page 886
882 Appendix E: REPORT EXAMPLES If Layer 4 Redirection is not enabled the following sections can be generated: ■ Enable Layer 4 Redirection OR Can't enable Layer 4 Redirection - no free cache entries. ■ Webcache operating in transparent mode (as opposed to forward proxy) - 3Com 3C15500 | User Guide - Page 887
F ADDING TRAP DECODES You can add your own SNMP trap decodes to 3Com Network Director by editing the file: \templates.ini 3Com Network Director reads this file when it starts, and any trap decodes it contains are added to the built-in trap decodes. If any errors are found - 3Com 3C15500 | User Guide - Page 888
trap decode example given below. specifies the severity to be assigned to events generated by the receipt of this trap. The supported severities are, from least to most important: ·info ·warning ·high ·critical See "Event Severities" on page 321 for more details on event - 3Com 3C15500 | User Guide - Page 889
following manner: {n} will be replaced with the nth varbind of the trap, where n is numbered from 0 upwards. The Java ChoiceFormat specification is also supported for generating text based upon the nth varbind of the trap, where n is numbered from 0 upwards. Some examples of this format are shown in - 3Com 3C15500 | User Guide - Page 890
= This trap is sent when the software versions on two units \ in the stack do not match.\ Update the agents running on the units in the stack so they are \ running the same version severity= warning ;a3ComPsePortCurrentStatusTrap - For Switch 4400 PWR [1.3.6.1.4.1.43.0.142] name - 3Com 3C15500 | User Guide - Page 891
ADDRESS VENDOR TRANSLATIONS 3Com Network Director can convert the first six digits of a raw twelve digit MAC address into a vendor name. You can enable this feature by checking the Translate MACs option in the General tab of the Tools > Options dialog box. Network Director includes many hundreds - 3Com 3C15500 | User Guide - Page 892
the and fields. For example, 3Com-Corporation is valid, but 3Com--Corporation is not (where "-" indicates a space character). is a field where you can provide your own description of the translation. Network Director does not use this field. Lines beginning with - 3Com 3C15500 | User Guide - Page 893
= This trap is sent when the software versions on two units \ in the stack do not match.\ Update the agents running on the units in the stack so they are \ running the same version severity= warning ;a3ComPsePortCurrentStatusTrap - For Switch 4400 PWR [1.3.6.1.4.1.43.0.142] name - 3Com 3C15500 | User Guide - Page 894
890 APPENDIX G: ADDING MAC ADDRESS VENDOR TRANSLATIONS - 3Com 3C15500 | User Guide - Page 895
any default support for devices which support SSH (Secure SHell) administration. However, you can integrate your own SSH client into Network Director by doing the following: 1 Locate the following file on your disk: \SSHClient.properties 2 Follow the instructions at the - 3Com 3C15500 | User Guide - Page 896
892 APPENDIX H: INTEGRATING AN SSH CLIENT For example, if your client expects to be called using: myClient -ip -verbose, your batch file might contain: myClient -ip %1% -verbose - 3Com 3C15500 | User Guide - Page 897
664 Agent Update 663, 805 agent update components 665 examples 674 progress dialog box 672 scheduling 664, 670 summary 671 summary report 673 supported devices 676, 841 troubleshooting device problems 677 wizard 665 agent update events 673 agent update reports 673 aggregated link device tree 235 - 3Com 3C15500 | User Guide - Page 898
terminal card 756 application field values prioritizing network traffic 637 applications prioritizing network traffic 636 attach alerts dialog box 364 specify backup 789 specify devices 781 summary and progress 784, 791 supported device parameters 806 type 779 backup audit report 786 backup files 786 - 3Com 3C15500 | User Guide - Page 899
supported 3Com devices 805 supported devices 841 useful Information and references 805 backups none found devices 619 supported features by device family 619 buttons toolbar, zoom 183 C capacity report 457 cause of high errors 392 change agent version 669 changes network 131 changes report 133, 536 - 3Com 3C15500 | User Guide - Page 900
LACP 611 network login 615 the 3Com Guide 32 create VLAN wizard 537 adding an IP routing interface 547 checking the VLAN limit 546 checking VLAN connectivity 543 configuring unsupported devices 546 entering the new VLAN ID and name 538 launching the wizard 537 modifying the list of selected switches - 3Com 3C15500 | User Guide - Page 901
description filter 343 detailed graph dialog box 287 detecting problem device 675 detecting NBX phones 95 device 230 device tree 234 groups 157 icons 158 router manager 475 switch manager 475 view 475 device backup events 784 reports 785 supported device parameters 806 wizard 779 device monitors 389 - 3Com 3C15500 | User Guide - Page 902
796 wizard 792 device sizing 96 device table name 668 new 668 not supported 668 SW not available 668 type 668 units 668 device tree 233 aggregated 92 groups 230 labels and address translation 175 menu 161 not supported 805 physical configuration 778 physical identification 778 dialog about 48 dialog - 3Com 3C15500 | User Guide - Page 903
dialog box 350 disabling and enabling events 349 discovering the NBX voice network 757 discovering the network 91 components 106 discovery clouds 100 device resolution 99 errors and live graphs 282 displayed path changing 189 downgrading considerations 677 problem device 675 download progress - 3Com 3C15500 | User Guide - Page 904
live update 821 download settings changing 822 dropping prioritizing network traffic 629 E edit VLANs wizard 552 empty historical list menu 329 list table 327 list toolbar 329 list update was stopped 382 manually resolving 334 monitor-based 320 navigating to sources in the map 332 NBX call processor related - 3Com 3C15500 | User Guide - Page 905
discovery examples 134 generating reports on historical data 392 main window 88 NBX call processor 768 product activation 52 reports 861 RMON support 450 VLAN support 561 working with device properties 264 working with events 370 working with the map 212 export reports to CSV 456 exporting a graph - 3Com 3C15500 | User Guide - Page 906
items 192 finding links 197 finding NBX telephony components 198 finding on network 192 free ports 457 G Generating Reports On Historical Data 385 Started 35 graph exporting 290 zooming into 291 graphing errors on core switch links 450 utilization on a specific VLAN 451 graphs not available for - 3Com 3C15500 | User Guide - Page 907
405 how backup files are discarded discarding backup files 808 HTTP hazards of blocking 662 I icons 153 device 158 end station 161 network infrastructure 159 subnets 169 telephony solution 160 IfIndex device tree 235 IGMP configuring 605 inconsistent VLAN configuration on link 535 inconsistent VLAN - 3Com 3C15500 | User Guide - Page 908
284 tree 281 Live Update 811 live update activity report 825 components 813 connection type 812 direct connection to the Internet 812 download progress 821 download settings changing 822 key concepts 812 key considerations 831 select file groups dialog box 817 status 818 table of available updates - 3Com 3C15500 | User Guide - Page 909
components 156 creation 133 default location 207 deleting items and links 204 icons 153 keeping up-to-date 205 linking items 204 manual layout 201 manually modifying 202 modifying the layout 200 navigating to event sources 332 navigation 182 saved maps files associated with 226 saving and opening - 3Com 3C15500 | User Guide - Page 910
313 IP Ping monitoring 277 items suitable for 279 line card 762 link 279 NBX call processor 761 non-3Com devices 279 phone 761 phone network 761 problems starting 315 service polling 278 SNMP MIB data retrieval 277 SNMP trap receipt 278 starting and stopping 293 techniques 276 monitoring history - 3Com 3C15500 | User Guide - Page 911
monitoring 761 no correct username/password specified 772 phone not managed anymore 771 problem with the HTTP service 773 selecting the associated phones 762 stopped responding during the network discovery 773 troubleshooting 770 NBX NetSet 770 NBX phones attendant consoles 756 detection 95 NBX step - 3Com 3C15500 | User Guide - Page 912
out-of-date report information 470 P password 815, 817 phone 230 added manually 771 phone network how 3Com Network Director discovers the 754 how 3Com Network Director monitors the 756 how 3Com Network Director represents the 754 monitoring 761 phones events related 766 monitoring 761 not managed - 3Com 3C15500 | User Guide - Page 913
623 prioritizing network traffic application field values 637 applications 636 classification 624 configuration levels 655 dropping 629 NBX step 633 NBX voice 641 queuing 627 reports 638 resource warnings 657 restricting access to SNMP 648 SAP server 642 service levels 629 wizard 631 problem device - 3Com 3C15500 | User Guide - Page 914
250 multiple selection 251 node 236 phone 242 structure 231 supported device 238 tabs 232 tabs for a node 236 tabs proxy settings custom 812 Q queuing prioritizing network traffic 627 R RADIUS client configuring the refreshing the events list 336 registering 3Com devices for warranty 483, 494 - 3Com 3C15500 | User Guide - Page 915
799 summary report 792 restoring to a replacement device 801 retry periods and timeouts changing 304 RMON 3Com Switch 4007 424 definition 452 history data for a device 423 history data for a link 425 history group 423 host view dialog box 436 support for 407 viewing data from the Host group 431 - 3Com 3C15500 | User Guide - Page 916
menu bar 408 options menu 410 toolbar 414 update menu 413 view menu 409 window menu 414 router manager supported devices 848 RRD database 400 RRD tool 395 S SAP server prioritizing network traffic 642 saved maps files associated with 226 scaling to thresholds 290 scheduled discovery 106 scheduling - 3Com 3C15500 | User Guide - Page 917
635, 659 cannot be selected 660 prioritized 635 servers step prioritize network traffic 635 service pack 812 service polling 278 setting thresholds for monitor-based events 356 setup 777 examples controlling 354 SNMP trap receipt 278 SNMP Traps 376 software additional required 859 Spanning Tree 98 - 3Com 3C15500 | User Guide - Page 918
report agent update 673 support for RMON 407 supported 3Com devices backup, restore and setup 805 Supported Devices 835, 883, 887, 891 supported devices agent update 676, 841 backup, restore and setup 841 bulk configuration 619 device view 846 router manager 848 switch manager 848 SW not available - 3Com 3C15500 | User Guide - Page 919
191 traffic prioritization configuring the network for end-to-end Traffic 630 translation MAC Addresses 177 trap destinations configuring 601 trap filtering 325 tree 154 device 233 navigation 187 selecting items 180 working with 151 troubleshooting agent update device problems 677 NBX call processor - 3Com 3C15500 | User Guide - Page 920
109 undiscovered subnets 170 ungrouped network view 158 unit device tree IDs 84 VLAN concepts 508 VLAN names 517 VLAN routing button 527 VLAN Support 499 VLANs 802.1Q 502 about 500 adding an IP routing interface 547 new VLAN on the selected switches and ports 551 discovering 508 edit VLANs wizard 552 - 3Com 3C15500 | User Guide - Page 921
502 protocol details button 526 protocol-based 507 restrictions on support 513 routing button 527 show VLANs 514 show VLANs VLAN-unaware devices 530 tagged and untagged membership 503 trace path 537 troubleshooting 570 viewing 188 VLAN IDs 523 W WAN clouds 104 web browser network discovery 107 - 3Com 3C15500 | User Guide - Page 922
prioritizing network traffic 631 trace path 191 Working with Events 319 working with events 332 working with the map 151 examples 212 X XRN fabric 871 Z zoom 182 buttons 183 zooming graph 291 - 3Com 3C15500 | User Guide - Page 923
PRODUCT. IT CONTAINS SOFTWARE, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION ("3COM") TO ITS CUSTOMERS FOR Software and supporting documentation for each such workstation or 3Com internetworking product on which the Software is used as permitted hereunder. Otherwise, the Software and supporting - 3Com 3C15500 | User Guide - Page 924
understanding and agreement between you and 3Com, supersedes all prior agreements, whether written or oral, with respect to the Software, and may be amended only in a writing signed by both parties. 3Com is a registered trademark of 3Com Corporation. 3Com Corporation, 350 Campus Drive Marlborough MA
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 |
 |
Part No. DUA1550-0AAA01
Published May 2004
3Com
®
Network Director
User Guide
3C15500