3Com 2824 SFP User Guide

3Com 2824 SFP - Baseline Switch Plus Manual

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  • 3Com 2824 SFP | User Guide - Page 1
    Baseline Switch 2816-SFP/2824-SFP Plus User Guide 3C Number: 3C16485A/3C16487 www.3com.com Part No. DUA1648-5AAA03 Published August 2005
  • 3Com 2824 SFP | User Guide - Page 2
    3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time. If there is any software or delivered to you in conjunction with, this User Guide. Unless otherwise indicated, 3Com registered trademarks are registered in the United States and
  • 3Com 2824 SFP | User Guide - Page 3
    THIS GUIDE Naming Convention 5 Conventions 5 Related Documentation 6 Documentation Comments 6 Product Registration 6 1 INTRODUCING THE BASELINE SWITCH Overview of the Baseline Switch 7 Features and Capabilities 7 Autosensing of MDI/MDIX Connections 7 Autonegotiating 10/100/1000 Mbps Ports 7 SFP
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    Viewing Support Information 47 5 TROUBLESHOOTING Forgotten Password 49 Forgotten Static IP Address 49 Solving LED Issues 49 If the Problem Persists 52 A OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product 53 Purchase Value-Added Services 53 Troubleshoot Online 53 Access Software Downloads 53
  • 3Com 2824 SFP | User Guide - Page 5
    3Com World Wide Web site: www.3com.com Naming Convention Throughout this guide, the 3Com Baseline Switch 2816/2824-SFP Plus is referred to as the Switch "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."
  • 3Com 2824 SFP | User Guide - Page 6
    the text. ■ Identify menu names, menu commands, and software button names. Examples: From the Help menu, select Contents. Click OK. Related Documentation In addition to this guide, each 3Com Baseline Switch 2816-SFP/2824-SFP Plus documentation set includes the following: ■ Online Help - Accessible
  • 3Com 2824 SFP | User Guide - Page 7
    3Com® Baseline Switch 2816/2824-SFP Plus. It also identifies the contents of the Switch package and helps you get to know the physical features of the device. Overview of the Baseline Switch The 3Com Baseline Switch 2816-SFP/2824-SFP Plus switched connection. The 1000BASE-T ports also support
  • 3Com 2824 SFP | User Guide - Page 8
    Rear Panel" on page 11. Figure 1 Front and Rear Panels (2816-SFP) 1 1 9 8 4 5 12 13 Baseline Switch 2816-SFP Plus Module Present 8 16 Link/Activity : Green = 1000M, Yellow = 10 Datensteckdosen angeschlossen werden. The Switch has 16 (2816-SFP) or 24 (2824-SFP) 10/100/1000 Mbps auto-negotiating ports
  • 3Com 2824 SFP | User Guide - Page 9
    or ports 1 to 24 (2824-SFP) are auto-negotiating: their speed and duplex mode (half duplex or full duplex for 10BASE-T and 100BASE-TX, full duplex only for 1000BASE-T) are automatically determined by the capabilities of the connected device. CAUTION: The Switch supports full duplex auto-negotiation
  • 3Com 2824 SFP | User Guide - Page 10
    10 CHAPTER 1: INTRODUCING THE BASELINE SWITCH Table 1 10BASE-T/100BASE-TX Ports Flashing Port disabled or link loopback error. Yellow to Green Off The link has not been established, either nothing is connected to the port, or there is a problem: ■ Check that the attached device is powered on.
  • 3Com 2824 SFP | User Guide - Page 11
    unit. (9) Recovery button The recovery button reinitializes the Switch. This returns the Switch to the factory default settings if, for example, you have forgotten the default IP address, or forgotten your user name or password. CAUTION: 3Com recommends that you back up your configuration settings
  • 3Com 2824 SFP | User Guide - Page 12
    12 CHAPTER 1: INTRODUCING THE BASELINE SWITCH
  • 3Com 2824 SFP | User Guide - Page 13
    SFP Transceivers ■ Performing Spot Checks Before You Begin WARNING: Safety Information. Before installing or removing any components from the Switch or carrying out any maintenance procedures, read the safety information provided in Appendix C of this guide componente dal product o di eseguire
  • 3Com 2824 SFP | User Guide - Page 14
    in the side of the case is not restricted (3Com recommends that you provide a minimum of 25 mm possible. Static discharge can cause reliability problems in your equipment. Rack-Mounting or CAUTION: If installing the Switch in a free-standing stack of different size Baseline or Superstack® 3 units
  • 3Com 2824 SFP | User Guide - Page 15
    3 Insert the two screws supplied in the mounting kit, and the fully tighten with a suitable screwdriver. Figure 2 Inserting the Screws Baseline Switch 2816-SFP Plus 4 Repeat the two previous steps for the other side of the unit. 5 Insert the unit into the 19-inch rack and secure with suitable screws
  • 3Com 2824 SFP | User Guide - Page 16
    with the recesses of the lower unit. Supplying Power to the Switch Power problems can be the cause of serious failures and downtime in your Power LED turns yellow after POST, it means that POST failed and the Switch has entered fail-safe mode. Table 5Table 5 summarizes the possible colors for
  • 3Com 2824 SFP | User Guide - Page 17
    m (328 ft). Figure 3 Connecting Devices to the Switch Baseline 10/100 Switch Endstations on switched 100 Mbps connections Baseline 10/100 Switch Endstations on switched 100 Mbps connections BaselineBSawsietclihne28S1w6i/t2ch82242-5S0FP Plus 1000 Mbps copper or F iber connection to backbone or
  • 3Com 2824 SFP | User Guide - Page 18
    transceiver is faulty, it will not operate within the Switch. See "Troubleshooting" starting on page 49. To insert an SFP transceiver: 1 Hold the transceiver so that the fiber connector is toward you and the product label is visible, as shown in Figure 4. Ensure the wire release lever is closed (in
  • 3Com 2824 SFP | User Guide - Page 19
    . Performing Spot Checks At frequent intervals, you should visually check the Switch. Regular checks can give you an early warning of a possible failure; any problems can then be attended to when there will be least effect on users. 3Com recommends periodically checking the items listed in Table 6.
  • 3Com 2824 SFP | User Guide - Page 20
    20 CHAPTER 2: INSTALLING THE SWITCH Table 6 Items to Check Item Verify That Cabling All external cabling connections are secure and that on the right side of the unit (when viewed from the front). If you experience any problems operating the Switch, refer to "Troubleshooting" on page 49.
  • 3Com 2824 SFP | User Guide - Page 21
    application, which is included on 3Com Baseline Switch 2816-SFP/2824-SFP Plus CD-ROM that is supplied with your Switch ■ A computer that is connected to the Switch and that has a Web browser Running the Discovery Application The 3Com Baseline Switch 2816-SFP/2824-SFP Plus CD-ROM contains, among
  • 3Com 2824 SFP | User Guide - Page 22
    devices. 3 On the Discovered Devices screen, click Baseline Switch 2816-SFP/2824-SFP Plus, and then click Next. The Completing the 3Com Discovery Application screen appears. 4 Click Finish. The page, you need to enter the administration user name and password to gain access to the Web interface.
  • 3Com 2824 SFP | User Guide - Page 23
    The logon page also displays the IP address that the Switch is currently using. Figure 7 Logon Page Navigating Buttons To log on to the Web interface: 1 In Username, type admin. 2 Leave the Password field blank. 3 Click OK. Navigating Around the Web Interface The Web interface has been designed
  • 3Com 2824 SFP | User Guide - Page 24
    to perform various system maintenance tasks, such as upgrading the firmware, resetting the Switch, backing up and restoring configuration, and enabling 802.11p prioritization. Menu Item Support Log Out Description Displays 3Com contact information and describes how to use the online help system
  • 3Com 2824 SFP | User Guide - Page 25
    on page 29. To determine the IP address that the Switch will assign to itself during auto IP configuration, check the sticker on the base of the Switch. This sticker contains the MAC address and default IP address of the Switch. DHCP Assigned IP Address If you set the IP address mode to DHCP, check
  • 3Com 2824 SFP | User Guide - Page 26
    26 CHAPTER 3: CONNECTING TO THE WEB INTERFACE
  • 3Com 2824 SFP | User Guide - Page 27
    Viewing Switch Information ■ Changing the Admin Password ■ Modifying the IP Address Settings ■ Configuring Port Settings ■ Configuring VLANs ■ Configuring Link Aggregation ■ Viewing Statistics ■ Mirroring Port Traffic ■ Running Cable Diagnostic ■ Using the System Tools ■ Viewing Support Information
  • 3Com 2824 SFP | User Guide - Page 28
    (board) on the Switch ■ Management Software Information - Shows the versions of the loader (firmware), boot ROM, and code. If you request for technical assistance from 3Com Support, you may be asked to print out the information on this page. Changing the Admin Password To prevent unauthorized users
  • 3Com 2824 SFP | User Guide - Page 29
    Password" on page 48 for information on how to regain access to the Web interface. Modifying the IP Address Settings To enable devices on the network to communicate with the Switch, you need to assign an IP address to it - either by DHCP or by manually assigning a static IP address. By default
  • 3Com 2824 SFP | User Guide - Page 30
    default IP address is already in use on the network, then the Switch detects this, and increments the last byte of the MAC address by one to generate its IP address. The IP address would therefore become 169.254.1.3. 3 The Switch repeats step 2 until an unused IP address is found. 3Com recommends
  • 3Com 2824 SFP | User Guide - Page 31
    Web interface can be accessed. By default, all ports belong to VLAN 1. If you create other VLANs, you will only be able to access that Web interface from a computer that belongs to VLAN 1. IP Address Mode Specify how the Switch will get its IP address. Available options include: ■ DHCP - Select
  • 3Com 2824 SFP | User Guide - Page 32
    , see See "Speed/Duplex for 1000 Mbps Connections" on page 32. Auto (or autonegotiation), which is enabled by default, sets the optimum combination of speed and duplex that can be supported by both ends of the link. ■ Priority - Set the priority for the traffic that passes through this port
  • 3Com 2824 SFP | User Guide - Page 33
    or aggregated link. Supported SFP transceivers only operate at 1000Mbps full-duplex. Inserting an SFP transceiver into a gigabit VLANs 33 Figure 13 Advanced Port Configuration Page Default Port Settings If you do not configure the Switch's port settings, the ports will use the following default
  • 3Com 2824 SFP | User Guide - Page 34
    to the originating group and help eliminate broadcast storms in large networks. This also provides for a more secure and cleaner network environment. Using the Switch, you can create up to 64 VLANs, add specific ports to a chosen VLAN (so that the port can only communicate with other ports on the
  • 3Com 2824 SFP | User Guide - Page 35
    happens, you will need to reset the Switch to factory settings. To create a VLAN: 1 On the menu, click VLANs. The VLANs page appears. 2 In VLAN ID, click Create New VLAN. 3 In VLAN ID (1-4094), type an unused ID number for the VLAN that you are creating. VLAN IDs range from 1 to 4094. Figure 15
  • 3Com 2824 SFP | User Guide - Page 36
    THE SWITCH Figure 16 Desktop VLAN Configuration Endstations in VLAN 1 Endstations in VLAN 2 Baseline Switch 2824-SFP Plus add another port to the VLAN or change the port configuration. Setting Up VLAN Across Two Switches This example explains how you can set up a VLAN across two Switches using
  • 3Com 2824 SFP | User Guide - Page 37
    Endstation in VLAN 2 (Desktop) Server in VLAN 2 (Desktop) Endstation in VLAN 1 (Desktop) To set up the configuration shown in Figure 17, do the following: 1 Create VLAN2 on both Switch 1 and Switch 2, and assign the same name to it. You need not create VLAN1 since it exists by default. Configuring
  • 3Com 2824 SFP | User Guide - Page 38
    device in order to achieve higher network throughput. For link aggregation to work, the trunks must be configured on both ends (switches). The Switch does not support the Link Aggregation Control Protocol (LACP), which is specified in IEEE 802.3ad. Guidelines for Creating Aggregated Links ■ Any of
  • 3Com 2824 SFP | User Guide - Page 39
    tab, modify any of the following settings: ■ Name - Allows you to label an interface (up to characters) ■ Flow Control - Allows automatic or manual selection of flow control. ■ Speed Duplex - Allows auto-negotiation to be enabled or disabled. When autonegotiation is disabled, you can force the
  • 3Com 2824 SFP | User Guide - Page 40
    40 CHAPTER 4: CONFIGURING THE SWITCH Figure 20 Summary Tab Figure 21 Statistics Page Viewing Statistics The Statistics page shows a summary of traffic statistics for all ports, as shown in Figure
  • 3Com 2824 SFP | User Guide - Page 41
    should have a higher bandwidth than the monitor port. Otherwise, the Switch may not be able to copy all traffic effectively during periods of the latest statistics for the port, click Refresh. Mirroring Port Traffic The Switch allows you to monitor traffic going in and out of a particular port.
  • 3Com 2824 SFP | User Guide - Page 42
    Running Cable Diagnostic The Switch provides cable diagnostic, which helps you detect and resolve issues with the attached cables. The Switch can run four types Spanning Tree and 802.1p Prioritization. Restart Pressing the Restart the Switch button has the same effect as power cycling the unit. No
  • 3Com 2824 SFP | User Guide - Page 43
    firmware becomes corrupted, you can reset the Switch to its factory defaults. CAUTION: Resetting the Switch to its factory defaults erases all your settings. You will need to reconfigure the Switch after you reset it. To reset the Switch to factory defaults, click Reset. The Switch LAN IP address
  • 3Com 2824 SFP | User Guide - Page 44
    configuration does not change the password. Upgrade The Upgrade facility allows you to install on the Switch any new releases of system software that 3Com may make available. The newer version of software can be downloaded via HTTP and once copied to the Switch; the Switch will restart and apply the
  • 3Com 2824 SFP | User Guide - Page 45
    ; if you do, the software may be corrupted and the Switch may not start up properly afterwards. If the Power LED continues to flash after a failed upgrade, refer to "Troubleshooting" on page 49. Spanning Tree This administrative tool supports the configuration of the Switch to forward, or block and
  • 3Com 2824 SFP | User Guide - Page 46
    Switch is configured to comply with 802.1p, VLAN tagged frames. Traffic prioritization ensures that high priority data is forwarded through the Switch . This ensures that time-sensitive traffic gets the highest level of service. The 802.1D standard specifies eight distinct levels of priority (0
  • 3Com 2824 SFP | User Guide - Page 47
    Switch allows you to choose between using IP Precedence or DSCP (Differentiated Services Code Point) priority. When either of these services is enabled, the priorities are mapped to a Class of Service value by the Switch, and the traffic then sent to the corresponding output queue. Viewing Support
  • 3Com 2824 SFP | User Guide - Page 48
    48 CHAPTER 4: CONFIGURING THE SWITCH Figure 30 Support Page
  • 3Com 2824 SFP | User Guide - Page 49
    how to obtain support for your Switch, refer to Appendix A. Forgotten Password If you forget the password to the Web interface after you set it, you will need to reset the Switch to regain access. See "Resetting to Factory Defaults" on page 43 for instructions. After resetting the Switch, log on to
  • 3Com 2824 SFP | User Guide - Page 50
    SFP module is correctly inserted. ■ A 3Com SFP module is being used. Refer to "Approved SFP Transceivers" on page 18 for details. ■ The equipment at the far end is installed and correctly configured. The Link/Activity LED is lit but the network performance of the Switch is poor The Switch supports
  • 3Com 2824 SFP | User Guide - Page 51
    follow the on-screen instructions to upgrade the Switch to the required version of firmware. Alternatively, click RESET to return the Switch to its factory default settings. CAUTION: Before recovering the Switch, save the Switch's current configuration. Recovering the Switch will cause the current
  • 3Com 2824 SFP | User Guide - Page 52
    52 CHAPTER 5: TROUBLESHOOTING 4 Click on the RESTART THE SWITCH button. 5 Restore the configuration file that you backed up in step 1. Refer to "Configuration" on page 43 for details. If the Problem Persists If the problem persists and the unit still does not operate successfully, contact your
  • 3Com 2824 SFP | User Guide - Page 53
    Web site at www.3com.com/ 3Com Knowledgebase helps you troubleshoot 3Com products. This query-based interactive tool is located at http://knowledgebase.3com.com and contains thousands of technical solutions written by 3Com support engineers. Access Software Downloads Software Updates are the bug
  • 3Com 2824 SFP | User Guide - Page 54
    for a user name and password. A link to software downloads can be found at http://eSupport.3com.com/, or under the Product Support heading at www.3com.com/ Software Upgrades are the software releases that follow the software version included with your original product. In order to access upgrades
  • 3Com 2824 SFP | User Guide - Page 55
    9469 800 810 3033 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 2824 SFP | User Guide - Page 56
    56 APPENDIX A: OBTAINING SUPPORT FOR YOUR PRODUCT Country Antigua Argentina Aruba Bahamas Barbados Belize 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
  • 3Com 2824 SFP | User Guide - Page 57
    B TECHNICAL INFORMATION Related Standards The 3Com Baseline Switch 2816/2824-SFP Plus has been designed to the following Voltage Current Rating Maximum Power Consumption Maximum Power Dissipation 3C16485A: 1.83 kg (4.03 lb) 3C16487: 1.89 (4.17 lb) Free standing, or 19 in. rack mounted using the
  • 3Com 2824 SFP | User Guide - Page 58
    58 APPENDIX B: TECHNICAL INFORMATION
  • 3Com 2824 SFP | User Guide - Page 59
    following safety information carefully before installing the Baseline Switch 2816-SFP/2824-SFP Plus. WARNING: Installation and removal of the unit must be carried out by qualified personnel only. ■ If installing the Switch unit in a stack with other units, the Switch unit must be installed below the
  • 3Com 2824 SFP | User Guide - Page 60
    Canada ■ The cord set must be UL-approved and CSA certified. ■ The minimum specifications for the flexible cord are: No. 18 AWG Type SV or SJ 3-conductor information de la sécurité suivante avant d'installer le Baseline Switch 2816-SFP/2824-SFP Plus. AVERTISSEMENT: L'installation et la dépose de ce
  • 3Com 2824 SFP | User Guide - Page 61
    vor dem Einbauen des Baseline Switch 2816-SFP/2824-SFP Plus die folgenden Sicherheitsanweisungen durchlesen. WARNUNG: Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. ■ Wenn der Baseline Switch 2816-SFP Plus mit anderen 3Com Hubs oder Switche gestapelt werden soll
  • 3Com 2824 SFP | User Guide - Page 62
    62 APPENDIX C: SAFETY INFORMATION angeschlossenen Geräte unter SELV-Bedingungen betrieben werden. Stromkabel. Dies muss von dem Land, in dem es benutzt wird geprüft werden: Schweiz ■ Dieser Stromstecker muß die SEV/ASE 1011Bestimmungen einhalten. Europe ■ Das Netzkabel muß vom Typ HO3VVF3GO.75
  • 3Com 2824 SFP | User Guide - Page 63
    of 50/125 or 62.5/125 micron core multimode fiber cable. 1000BASE-T IEEE 802.3ab specification for Gigabit Ethernet over 100-ohm Category 5, 5e or 6 twisted-pair cable (using all packet that ensures that data is efficiently exchanged between Switches in a LAN. BPDU messages detect loops in a
  • 3Com 2824 SFP | User Guide - Page 64
    . Windows 95, Windows 98 and Windows NT 4.0 contain software that assigns IP addresses to workstations on a network. These assignments are made by the DHCP server software that runs on Windows NT Server. Ethernet A LAN specification developed jointly by Xerox, Intel and Digital Equipment Corporation
  • 3Com 2824 SFP | User Guide - Page 65
    not at the same time. Half duplex is not supported for 1000 Mbps. Contrast with full duplex. IEEE VLANs to communicate across switched networks. IEEE 802.1p An IEEE standard for providing quality of service providing engineering solutions for TCP/IP networks. In the network management area,
  • 3Com 2824 SFP | User Guide - Page 66
    identifier for a device attached to a network using TCP/IP. The address is written as four octets separated with periods (full-stops), and is made up of a network section, an optional subnet section and a host section. ISP Internet Service Provider. An ISP is a business that provides connectivity
  • 3Com 2824 SFP | User Guide - Page 67
    with access to shared network services such as computer files and printer queues. 67 SFP Small From Factor Pluggable (SFP) Connectors are based on an IP address numbers recognized by the Internet, which must assigned by InterNIC). Subnets A network that is a component of a larger network. Switch
  • 3Com 2824 SFP | User Guide - Page 68
    for the interconnection of networks. Originally a UNIX standard, TCP/IP is now supported on almost all platforms, and is the protocol of the Internet Switch. Trunking A method which specifies how to create a single high-speed logical link that combines several lower-speed physical links. VLAN
  • 3Com 2824 SFP | User Guide - Page 69
    and used in accordance with the instructions, may cause harmful interference to radio to Identify and Resolve Radio-TV Interference Problems This booklet is available from the U.S. comply with IEEE 802.3. CE Statement (Europe) This product complies with the European Low Voltage Directive 73/23/EEC
  • 3Com 2824 SFP | User Guide - Page 70
    70 CHAPTER : REGULATORY NOTICES
  • 3Com 2824 SFP | User Guide - Page 71
    protocol 64 E Ethernet 64 F Fast Ethernet 65 FCC statement 69 Feedback about this User Guide 6 firmware upgrading 44 forgotten default IP address 51 password 51 user name 51 forgotten IP address 49 forgotten password 49 front panel diagram 8 full duplex 65 G Gigabit Ethernet 65 Glossary 63 H half
  • 3Com 2824 SFP | User Guide - Page 72
    subnet mask 67 support 47 Switch positioning 13 restarting 42 switch defined 67 system tools 42 T TCP/IP 66 defined 68 technical specifications 57 traffic 68 traffic prioritization 46 troubleshooting LED-related issues 49 POST failed 17 U upgrading firmware 44 user name default 28 V VCCI statement
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www.3com.com
Part No. DUA1648-5AAA03
Published August 2005
Baseline Switch
2816-SFP/2824-SFP Plus
User Guide
3C Number: 3C16485A/3C16487