3Com 3CBLSF50 User Guide

3Com 3CBLSF50 - Baseline Switch 2250 Manual

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  • 3Com 3CBLSF50 | User Guide - Page 1
    Baseline Switch 2226-SFP Plus Baseline Switch 2426-PWR Plus Baseline Switch 2250-SFP Plus Installation and User Guide Installations- und Bedienungsanleitung 3CBLSF26 3CBLSF26PWR 3CBLSF50 www.3Com.com Part No. 10016622 Published May 2008
  • 3Com 3CBLSF50 | User Guide - Page 2
    or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide. Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries
  • 3Com 3CBLSF50 | User Guide - Page 3
    25 Using the Console Command Line Interface (CLI) 25 Logging On to the Web Interface 27 Navigating the Web Interface 28 Menu 28 Buttons 31 Port Status 31 Accessing the Switch using the 3Com Switch Detect Application 31 Running the 3Com Switch Detect Application 32 4 CONFIGURING THE SWITCH FROM THE
  • 3Com 3CBLSF50 | User Guide - Page 4
    72 5 TROUBLESHOOTING Resetting to Factory Defaults 75 Forgotten Static IP Address 76 Solving LED Issues 76 If the Problem Persists 77 A OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product 79 Purchase Value-Added Services 79 Troubleshoot Online 79 Access Software Downloads 79 Telephone
  • 3Com 3CBLSF50 | User Guide - Page 5
    Assignments 89 D 3COM CLI REFERENCE GUIDE Getting Started with the Command Line Interface 91 Console Port 91 Logging on to the CLI 91 Automatic Logout 92 Concurrent CLI Sessions 92 CLI Commands 92 ? 93 Ping 94 Summary 94 ipSetup 95 Upgrade 96 Initialize 97 Reboot 97 Logout 98 Password 98 REGULATORY
  • 3Com 3CBLSF50 | User Guide - Page 6
  • 3Com 3CBLSF50 | User Guide - Page 7
    ABOUT THIS GUIDE This guide describes how to install your 3Com Switch and perform initial management configurations. It covers the following switches: Baseline Switch 2226-SFP Plus (3CBLSF26) Baseline Switch 2426-PWR Plus (3CBLSF26PWR) Baseline Switch 2250-SFP Plus (3CBLSF50) Unless noted otherwise
  • 3Com 3CBLSF50 | User Guide - Page 8
    number (if appropriate) Example: ■ Baseline Switch 2426-PWR Plus User Guide ■ Part number: 10016622 ■ Page 25 Please note that we can only respond to comments and questions about 3Com product documentation at this e-mail address. Questions related to technical support or sales should be directed in
  • 3Com 3CBLSF50 | User Guide - Page 9
    a versatile, easy-to-use configurable switch. The 3Com® Baseline Switch 2426-PWR Plus is a versatile, easy-to-use configurable Power-over-Ethernet (PoE) Switch. The 3Com® Baseline Switch 2250-SFP Plus is a versatile, easy-to-use configurable switch. Each Switch is ideal for users who want the high
  • 3Com 3CBLSF50 | User Guide - Page 10
    10 INTRODUCING THE BASELINE SWITCH 10/100 Mbps ports can operate in either half-duplex or full-duplex mode. Power-over-Ethernet Capability The Switch 2426-PWR Plus (3CBLSF26PWR) provides 24 front panel RJ-45 ports that support the IEEE 802.3af Power-over-Ethernet (PoE) standard. Any 802.3af
  • 3Com 3CBLSF50 | User Guide - Page 11
    werden. The Switch has 24 or 48 10/100 Mbps auto-negotiating ports. Each port supports automatic MDI/ port, the speed and duplex mode (half duplex or full duplex for 10BASE-T and 100BASE-TX) are automatically determined by the capabilities of the connected device. The 3CBLSF26PWR Switch also supports
  • 3Com 3CBLSF50 | User Guide - Page 12
    use to reset the Switch to factory defaults, change the IP address that is assigned to the Switch, set the admin password, reboot the Switch, or upgrade the Switch firmware via TFTP. To connect to the Console Port, you need the following: ■ The console cable provided in the Switch package, connected
  • 3Com 3CBLSF50 | User Guide - Page 13
    in full duplex mode. Off The link is operating in half duplex mode. ■ The duplex status of the ports on 3CBLSF50 (and 3CBLSF26/3CBLSF26PWR) can also be monitored from the user interface. (6) Gigabit Combo Port and Duplex Status LEDs Each Gigabit combo port has two status LEDs which indicate
  • 3Com 3CBLSF50 | User Guide - Page 14
    14 INTRODUCING THE BASELINE SWITCH 1000BASE-T Mode Table 3 1000BASE-T Link/Activity Status LEDs Link/Activity Meaning Green The link is operating at 1000 Mbps. Yellow The link is operating at 10 or 100 Mbps. Flashing Green Packets are being received or transmitted on the port at 1000 Mbps.
  • 3Com 3CBLSF50 | User Guide - Page 15
    module is not inserted. The SFP module will only disable the 1000BASE-T interface once there is a valid link on the module. (7) Power LED The Power LED shows the power status of the Switch. Table 7 Power Status LED Status Meaning Green The unit is powered on and ready for use. Yellow Internal
  • 3Com 3CBLSF50 | User Guide - Page 16
    cord ■ One console cable ■ Four standard height, self-adhesive rubber pads ■ One mounting kit (part number 123193-104) ■ Installation CD ■ This User Guide ■ Warranty flyer The Switch is powered from the AC supply. If any of the above items are damaged or missing, contact your 3Com network supplier
  • 3Com 3CBLSF50 | User Guide - Page 17
    this would be: Informações de Segurança e Regulatórias da Famila de Switches 3Com) incluido no produto. Este manual pode ser encontrado no CD-ROM incluido com o seu switch ou no site da 3Com: www.3Com.com Viktig säkerhets information Vänligen hänför till säkerhets informationen som är inkluderad med
  • 3Com 3CBLSF50 | User Guide - Page 18
    Family Safety and Regulatory Information, incluido en este producto. Puede encontrar el manual en el CD-ROM adjunto a su switch.Alternativamente lo puede bajar de la web de 3Com: www.3Com.com Istotne informacje dot. bezpieczeństwa Informacje dotyczące bezpieczeństwa są umieszczone w Instrukcji
  • 3Com 3CBLSF50 | User Guide - Page 19
    problems in your equipment. Rack-Mounting or Free-Standing The unit can be mounted in a 19-inch equipment rack using the mounting kit, or it can be free standing. Do not place objects on top of the unit or stack. CAUTION: If installing the Switch in a free-standing stack of different size Baseline
  • 3Com 3CBLSF50 | User Guide - Page 20
    are mixing a variety of Baseline and SuperStack units, the smaller units must be positioned at the top. If you are placing Switch units one on top of up 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 network
  • 3Com 3CBLSF50 | User Guide - Page 21
    the Switch. See "Resetting to Factory Defaults" on page 75. CAUTION: Resetting the Switch to its factory defaults erases all your settings. You will need to reconfigure the Switch after you reset it. If these do not resolve the issue: ■ Check the 3Com Knowledgebase for a solution. To visit the 3Com
  • 3Com 3CBLSF50 | User Guide - Page 22
    Switch on the 3Com Web site, enter this URL into your Internet browser: http://www.3Com.com 3Com recommends using 3Com SFPs in the Switch. If you insert an SFP transceiver that is not supported, the Switch operate within the Switch. See "Troubleshooting" on page 75. To activate the SFP port: 1 Hold
  • 3Com 3CBLSF50 | User Guide - Page 23
    . 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 9.
  • 3Com 3CBLSF50 | User Guide - Page 24
    . Cooling fan (3CBLSF26PWR only) Where possible, check that the cooling fan is operating by listening to the unit. The fan is fitted near to the front right hand side of the unit (when viewed from the front). If you experience any problems operating the Switch, refer to "Troubleshooting" on page
  • 3Com 3CBLSF50 | User Guide - Page 25
    can use to set the admin password, change the IP address that is assigned to the Switch, and configure its advanced settings. If you only want the Switch to function as a basic layer 2 switch, you do not need to access the Web interface and configure the Switch. This chapter provides information on
  • 3Com 3CBLSF50 | User Guide - Page 26
    or to manually assign one, it is necessary to use the console interface. The CLI Command Reference Guide is covered in Appendix D. Connect the supplied console cable to the console socket, located on the front panel of the Switch. This should be connected to a COM port on your PC (or MAC). Configure
  • 3Com 3CBLSF50 | User Guide - Page 27
    manual IP address and you can now move on to using the Web interface. Figure 7 CLI Summary with Assigned IP Address Logging On to the Web Interface 27 IP user name and password to gain access to the Web interface. The browser's address bar also displays the IP address that the Switch is
  • 3Com 3CBLSF50 | User Guide - Page 28
    been designed to enable you to easily perform advanced configuration tasks and view information about the Switch. Menu The menu is located on the left side from. Figure 9 3CBLSF26 Switch Screen Layout Sub-Menu Tabs Figure 10 3CBLSF26PWR Switch Screen Layout Sub-Menu Tabs Menu System Information
  • 3Com 3CBLSF50 | User Guide - Page 29
    device. IP Setup Allows you to setup, modify, or view the IP configuration parameters. Backup & Restore Allows you to backup and restore the Switch's configuration. Firmware Upgrade Upgrades the current firmware via HTTP. Reset Performs a system reboot and resets the Switch to factory default
  • 3Com 3CBLSF50 | User Guide - Page 30
    , or disable rate limiting. Configures Quality of Service. Menu Item Description VoIP Trafic Setting Contains tabs that allow you to: ■ Display a summary of Voice VLAN settings. ■ Enable Voice VLANs. ■ Configure Voice VLAN port settings. ■ Display Voice VLAN port details. ■ Display the OUI
  • 3Com 3CBLSF50 | User Guide - Page 31
    detailed port information ■ Configure the port settings ■ View port statistics Accessing the Switch using the 3Com Switch Detect Application The 3Com Switch Detect application works by automatically locating your Switch, establishing what IP address it is using and then launching your default web
  • 3Com 3CBLSF50 | User Guide - Page 32
    of the CD-ROM. Select the 3Com Detect Application link to install the utility. Follow the onscreen instructions. If the auto-run program does not start, you should browse to your CD-ROM drive, go to the /switch detect directory and double click on setup.exe. Follow the prompts that will take
  • 3Com 3CBLSF50 | User Guide - Page 33
    the Switch using the 3Com Switch Detect Application 33 Figure 14 The 3Com Switch Detect Discovered Devices 4 Once your Switch or Switches have been located, you will be presented with a list (Figure 14). Select the switch to which you want to connect and click on "Open." Your default Web
  • 3Com 3CBLSF50 | User Guide - Page 34
    34 CHAPTER 3: CONNECTING TO THE WEB INTERFACE
  • 3Com 3CBLSF50 | User Guide - Page 35
    to access the Web interface if you want to: ■ Set the administration password to the Web interface ■ Assign an IP address to the Switch ■ Configure the Switch's advanced features ■ Upgrade the firmware Device Summary Information The Device Summary screen, which automatically loads after you log
  • 3Com 3CBLSF50 | User Guide - Page 36
    Version. Figure 15 Device View If you request for technical assistance from 3Com Support, you may be asked to print out the information on this screen. Polling Interval Enter the interval in seconds you would like the Switch to refresh. (Range: 10 to 180 seconds; 0 to disable polling). Figure 16
  • 3Com 3CBLSF50 | User Guide - Page 37
    server (default operation), or if this is not successful, will allocate itself an IP address. You can use the console interface or the 3Com Switch Detect application (with certain limitations) to see what IP address the Switch will use. Automatic IP Configuration When you power on the Switch for
  • 3Com 3CBLSF50 | User Guide - Page 38
    network devices. IP Setup Use these settings to change the IP addressing mode and the IP address of the Switch. Be default, the IP address configuration method will be DHCP. In this mode the Switch will obtain an IP address from a DHCP server. The IP address, subnet mask and default gateway details
  • 3Com 3CBLSF50 | User Guide - Page 39
    back to the Switch. For security purposes, restoring the configuration does not change the password. Firmware Upgrade The Upgrade facility allows you to install on the Switch any new releases of system firmware that 3Com may make available. Newer versions of firmware can be downloaded via HTTP and
  • 3Com 3CBLSF50 | User Guide - Page 40
    IP setting will return the Switch to the factory default configuration, including the IP address mode which shall be returned to DHCP enabled. The Switch shall be reset. Selecting any of the 3 options above will result in the Switch resetting. During this period any users connected to the Switch
  • 3Com 3CBLSF50 | User Guide - Page 41
    actively manage the Switch, 3Com recommends that you change the password to prevent unauthorized access to your network. The password can be up to 8 characters long and is case-sensitive. If you forget the administration password after you set it, refer to "Resetting to Factory Defaults" on page 75
  • 3Com 3CBLSF50 | User Guide - Page 42
    42 CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Modify User This page allows you to modify a user's access level and password. Figure 24 Modify User Screen Remove User To remove a user from the Switch, click on the user name, then click Remove. Figure 25 Remove User Screen
  • 3Com 3CBLSF50 | User Guide - Page 43
    these user definable fields to help identify your switch. configure these devices for proper operation in a network environment, as well as to monitor them to evaluate performance or detect potential problems. Click Administration, then SNMP on the menu. A screen appears with three tabs: ■ Setup
  • 3Com 3CBLSF50 | User Guide - Page 44
    CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE SNMP Add This page allows you to create community strings for management access. Figure 29 SNMP Add Screen SNMP Remove This page allows you to remove community strings. Figure 30 SNMP Remove Screen Configuring VLANs A virtual LAN (VLAN) is
  • 3Com 3CBLSF50 | User Guide - Page 45
    add specific ports to a chosen VLAN (so that the port can only communicate with other ports on the VLAN), or configure a port make it a member of multiple or even all VLANs. Communication between different VLANs can only take place if they are all connected to a router or layer 3 switch. The Device
  • 3Com 3CBLSF50 | User Guide - Page 46
    VLAN Configurations". CAUTION: At least one port must always be an untagged member of VLAN 1 (the management VLAN). If you choose to connect all ports to VLANs other than VLAN 1, you will no longer be able to access the Web interface. If this happens, you will need to reset the Switch to factory
  • 3Com 3CBLSF50 | User Guide - Page 47
    to associate with the membership, then click Apply. Modify Port Use the Modify Port screen to modify the VLAN membership of a port. Figure 33 Modify Port Screen Configuring VLANs 47 1 Select a membership use. Available options for each port include (only one option can be associated with a single
  • 3Com 3CBLSF50 | User Guide - Page 48
    CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE 1 Enter a set of VLANs or select all VLANs to add to the rename list, then click Select. 2 From the list of selected VLANs, choose a VLAN to rename. Enter a new VLAN name and click Apply. Remove Use the Remove screen to remove a VLAN. Figure
  • 3Com 3CBLSF50 | User Guide - Page 49
    be stripped of the VLAN tag and forwarded as untagged. However, if the port is a tagged member, the egress frame is forwarded as tagged. Sample VLAN Configurations To illustrate how you can segment network devices that are connected to the Switch, the following sample configurations are provided.
  • 3Com 3CBLSF50 | User Guide - Page 50
    38 Desktop VLAN Configuration Endstations in VLAN 1 Endstations in VLAN 2 Baseline Switch 3 Click Apply. Ports 1, 3, and 26 now belong to VLAN2, and will not communicate with any other ports, unless you add other ports to the VLAN or change the port configuration. Setting Up VLAN Across Two
  • 3Com 3CBLSF50 | User Guide - Page 51
    Figure 39 Tagged VLAN Configuration To set up the configuration shown in Figure 39, do the following: 1 Create VLAN2 on both Switch 1 and Switch 2. You need not create VLAN1 since it exists by default. Configuring VLANs 51 2 On Switch 1, set the ports that you want to be part of VLAN2 to Untagged
  • 3Com 3CBLSF50 | User Guide - Page 52
    that they are prevented from forwarding traffic. Three tabs are available on the Spanning Tree page: ■ Summary ■ Setup ■ Port Setup Summary Use the Summary tab to display Status, Edged Port, Link Type, Path Cost, State, or Port Priority for all the ports. Figure 40 Spanning Tree Summary Screen
  • 3Com 3CBLSF50 | User Guide - Page 53
    tab and choose Enabled from the State drop down menu, fill in the setup parameters, and click Apply. Figure 41 Spanning Tree Setup Screen Port Setup This administrative tool supports the configuration of the Switch to forward, or block and discard 802.1D spanning tree BPDU packets. Spanning tree
  • 3Com 3CBLSF50 | User Guide - Page 54
    54 CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE ■ Status - Enables and disables spanning tree for the port. ■ Edged Port - Enables and disables edged port for the port. ■ Link Type - Choose between Point-to-Point, Shared, or Auto for the link type. ■ Path Cost - The path cost is used
  • 3Com 3CBLSF50 | User Guide - Page 55
    over again. Broadcast storms use substantial network bandwidth and may cause network time-outs. Two tabs are available on the Broadcast Storm page: ■ Summary ■ Modify Configuring VLANs 55 Summary Use the Summary tab to display the broadcast mode and rate for all the
  • 3Com 3CBLSF50 | User Guide - Page 56
    Storm Modify Screen ■ Setup ■ Port Setup ■ Port Detail ■ OUI Summary ■ OUI Modify Summary Use the Summary tab to display the Voice VLAN settings for all the ports. Figure 46 QoS VoIP Summary Screen QoS VoIP Traffic Settings Using the Web interface, you can configure the Voice over Internet
  • 3Com 3CBLSF50 | User Guide - Page 57
    . 2 Select the ports you would like to apply these settings to. 3 Click Apply. Figure 48 QoS Port Setup Screen Port Setup Use the Port Setup tab to configure the port or trunk setting for Voice VLAN. The following options are available: ■ Voice VLAN Port Mode- Select between None, Manual, or Auto.
  • 3Com 3CBLSF50 | User Guide - Page 58
    58 CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Port Detail Use the Port Detail tab to display the Voice VLAN information for selected ports. Figure 49 QoS Port Detail Screen OUI Summary Use the OUI Summary tab to display the list of Organizational Unique Identifier for a company and
  • 3Com 3CBLSF50 | User Guide - Page 59
    that include: ■ Summary ■ Setup Setup Use the Setup tab to configure the device and port PoE settings. The settings include: ■ PoE State - Enables and disables PoE for the switch. ■ Auto - Allows the switch to manage the PoE budget for selected ports. ■ Guarantee - Manually input the maximum power
  • 3Com 3CBLSF50 | User Guide - Page 60
    down or disable ports. The Port menu includes three items: ■ Administration ■ Link Aggregation ■ Statistics Administration Three tabs are available on the Port Administration page: ■ Summary ■ Detail ■ Setup Summary Use the Summary tab to display Port State, Flow Control, Speed, Default VLAN ID, and
  • 3Com 3CBLSF50 | User Guide - Page 61
    Administration Detail Screen Setup Use the Setup tab to configure the port settings. The following options are available: ■ Port State - Enables and disables the port. ■ Flow Control - Enables and disables flow control on the port. When flow control is enabled for the port, the Switch regulates the
  • 3Com 3CBLSF50 | User Guide - Page 62
    62 CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE disabled, packets may be dropped under certain periods of high traffic. Flow control is disabled by default. ■ Speed - Sets the speed mode of the port. Available options include auto, 10, 100, and 1000. For 1000 Mbps connections, see "
  • 3Com 3CBLSF50 | User Guide - Page 63
    for Creating Trunks ■ Any port on the Switch can be used for creating a trunk. ■ The Switch supports a maximum of four trunks. ■ Each trunk may contain up to eight members. ■ A port may only be a member of one trunk at any one time. ■ All ports in a trunk must be configured in an identical
  • 3Com 3CBLSF50 | User Guide - Page 64
    CONFIGURING THE SWITCH FROM THE WEB INTERFACE Summary Use the Summary tab to display a list of configured link aggregation Group IDs and the associated member Ports. Figure 57 Link Aggregation Summary Screen Create Use the Create tab to add ports to a group membership. Figure 58 Link Aggregation
  • 3Com 3CBLSF50 | User Guide - Page 65
    Use the Modify tab to reassign member ports of a link aggregation group. Figure 59 Link Aggregation Modify Screen Configuring Port Settings 65 Remove Use the Remove tab to delete a link aggregation group. Figure 60 Link Aggregation Remove Screen To modify a link aggregation group: 1 Select the
  • 3Com 3CBLSF50 | User Guide - Page 66
    Counters to set all port statistic counters back to zero. Security Using the Web interface, you can configure the RADIUS Client and 802.1X settings. The Security menu includes two items: ■ RADIUS Client ■ 802.1X Settings RADIUS Client Remote Authentication Dial-in User Service (RADIUS) is a logon
  • 3Com 3CBLSF50 | User Guide - Page 67
    to save your changes. Security 67 Figure 62 RADIUS Client Configure Screen 802.1X Settings The IEEE 802.1X standard defines a port-based access control procedure that prevents unauthorized access to a network by requiring users to first submit credentials for authentication. The 802.1X settings
  • 3Com 3CBLSF50 | User Guide - Page 68
    authentication settings for all the ports. Figure 63 802.1X Summary Screen Setup Use the Setup tab to configure the 802.1X authenticaion settings. The following fields are available: ■ System Authentication - Sets the global setting for 802.1X. (Default: Disabled) ■ Operation Mode - Allows single
  • 3Com 3CBLSF50 | User Guide - Page 69
    seconds; Default: 3600 seconds) ■ Quiet Period - Sets the time that a switch port waits after switch waits before re-transmitting an EAP packet. (Range: 1-65535; Default: 30 seconds) After you have filled in the parameters, click Apply to save your changes. Monitoring 69 Figure 64 802.1X Setup
  • 3Com 3CBLSF50 | User Guide - Page 70
    70 CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE entering the Switch. You can display the address table to find specific MAC addresses, or view MAC addresses associated with a specific port or VLAN. The Address Table menu includes two tabs: ■ Summary ■ Port Summary Summary Use the
  • 3Com 3CBLSF50 | User Guide - Page 71
    than the mirror port. Otherwise, the Switch may not be able to copy all traffic effectively during periods of high traffic. Two tabs are available on the Port Mirroring page: ■ Setup ■ Remove Setup Use the Setup tab to create a port mirror session. Figure 67 Port Mirroring Setup Screen Monitoring
  • 3Com 3CBLSF50 | User Guide - Page 72
    72 CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE To remove a port mirror session: 1 From the port mirror session list, select the session to remove. 2 Click Remove. Cable Diagnostics The Switch provides a cable diagnostic utility, which helps you detect and resolve issues with the
  • 3Com 3CBLSF50 | User Guide - Page 73
    Diagnostics Use the Diagnostics tab to display individual port information on Test Result, Cable Fault Distance (in meters), and Last Update. Figure 70 Cable Diagnostic Screen In the example: "0,0", the first digit refers to
  • 3Com 3CBLSF50 | User Guide - Page 74
    74 CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE
  • 3Com 3CBLSF50 | User Guide - Page 75
    how to obtain support for your Switch, refer to Appendix A. Resetting to Factory Defaults If the Switch does not operate normally or if the firmware becomes corrupted, you can reset the Switch to factory defaults. Connect to the console interface, as detailed elsewhere in this user guide. During the
  • 3Com 3CBLSF50 | User Guide - Page 76
    76 CHAPTER 5: TROUBLESHOOTING The Switch will perform automatic IP configuration after you reset it. See "Automatic IP Configuration" on page 37 for more information. Forgotten Static IP Address If you have forgotten the static IP address that you have assigned to the Switch and you need to
  • 3Com 3CBLSF50 | User Guide - Page 77
    -duplex, the Switch will configure the link as half-duplex, causing a mismatch that will reduce network performance when data is transmitting and receiving simultaneously on the same link. Ensure that the connected device has either: ■ Autonegotiation enabled, or ■ The ports are configured for half
  • 3Com 3CBLSF50 | User Guide - Page 78
    78 CHAPTER 5: TROUBLESHOOTING
  • 3Com 3CBLSF50 | User Guide - Page 79
    to access. First time users must apply for a user name and password that provides access to a number of eSupport features including Product Registration, Repair Services, and Service Request. If you have trouble registering your product, please contact 3Com Global Services for assistance. Purchase
  • 3Com 3CBLSF50 | User Guide - Page 80
    obtain an RMA number online at http://eSupport.3com.com/. First time users will need to apply for a user name and password. Contact Us 3Com offers telephone, e-mail and Internet access to technical support and repair services. To access these services for your region, use the appropriate telephone
  • 3Com 3CBLSF50 | User Guide - Page 81
    dialing 800 763 6780 You can also obtain non-urgent support in this region at this email address [email protected] Or request a return material authorization number (RMA) Support and Repair From anywhere in these +44 1442 435529 regions not listed below, call: Contact Us 81
  • 3Com 3CBLSF50 | User Guide - Page 82
    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 send e-mail to: [email protected] US and Canada Telephone Technical Support and Repair 1 800 876 3266
  • 3Com 3CBLSF50 | User Guide - Page 83
    B TECHNICAL INFORMATION 3CBLSF26 Related Standards The Baseline Switch 2226-SFP Plus has been designed to the following standards: Functional IEEE 802.3 (Ethernet), IEEE 802.3u (Fast Ethernet), IEEE 802.3ab and IEEE 802.3z (Gigabit Ethernet),
  • 3Com 3CBLSF50 | User Guide - Page 84
    84 APPENDIX B: TECHNICAL INFORMATION 3CBLSF26PWR Related Standards The Baseline Switch 2426-PWR Plus has been designed to the following standards: Functional IEEE 802.3 (Ethernet), IEEE 802.3u (Fast Ethernet), IEEE 802.3ab and IEEE 802.3z (Gigabit Ethernet),
  • 3Com 3CBLSF50 | User Guide - Page 85
    3CBLSF50 Related Standards The Baseline Switch 2250-SFP Plus has been designed to the following standards: Functional ISO 8802-3, IEEE 802.3 (Ethernet), IEEE 802.3u (Fast Ethernet), IEEE 802.3ab and IEEE 802.3z (
  • 3Com 3CBLSF50 | User Guide - Page 86
    86 APPENDIX B: TECHNICAL INFORMATION
  • 3Com 3CBLSF50 | User Guide - Page 87
    . One end of the cable has an RJ-45 plug for connecting to the switch's Console port, and the other end has a DB-9 socket connector for connecting to the serial port on the terminal, as shown in Figure 71. Figure 71 Console Cable Direction A Pos 9 Main label A Direction B 8B 1 Pos 1 Table
  • 3Com 3CBLSF50 | User Guide - Page 88
    RJ-45 to 9-pin Cable connector: RJ-45 female Screen Shell DTR 4 TxD 3 RxD 2 CTS 8 Ground 5 DSR 6 RTS 7 DCD 1 PC-AT Serial Port Cable connector: 9-pin female Shell Screen only required if screen 1 DCD Required for handshake 2 RxD Always required 3 TxD 4 DTR required for
  • 3Com 3CBLSF50 | User Guide - Page 89
    Pin Assignments Table 2 RJ-45 MDI Pin Assignments Pin Number 10/100 1000 Ports configured as MDI 1 Transmit Data + Bidirectional Data A+ 2 Transmit Data - Bidirectional Data A- 3 Receive Data + Bidirectional Data B+ 4 Not assigned Bidirectional Data C+ 5 Not assigned Bidirectional
  • 3Com 3CBLSF50 | User Guide - Page 90
    90 APPENDIX C: PIN-OUTS
  • 3Com 3CBLSF50 | User Guide - Page 91
    is for Terminal keys (not Windows keys). Logging on to the CLI The Login process requires a User Name and Password. The default user name for first time configuration is admin. No password is required. User names and passwords are case sensitive. To logon to the CLI Interface: 1 Press Enter without
  • 3Com 3CBLSF50 | User Guide - Page 92
    92 APPENDIX D: 3COM CLI REFERENCE GUIDE If the password is invalid, the following message appears and Login process restarts. Incorrect Password Automatic Logout The user session is automatically terminated after 30 minutes in which no device configuration activity has occurred. The following
  • 3Com 3CBLSF50 | User Guide - Page 93
    options: --------3Com Baseline Switch 2426-PWR Plus ? - Displays Help information initialize - Reset the device to factory default, except IP. ipSetup - Configures IP address. logout - Logout from this session. ping - Ping a remote station. password - Change password. reboot - Power
  • 3Com 3CBLSF50 | User Guide - Page 94
    intended for devices that support separate runtime and bootcode Images. Syntax Summary Default Configuration This command has no default configuration. User Guidelines There are no user guidelines for this command. Example The following displays current IP configuration and software versions running
  • 3Com 3CBLSF50 | User Guide - Page 95
    ipSetup The ipSetup command allows the user to define an IP address on the device either manually or via a DHCP server. Syntax ipSetup Default Configuration No default IP address is defined for interfaces. User Guidelines When the IP address is configured manually by the user, the address must be in
  • 3Com 3CBLSF50 | User Guide - Page 96
    D: 3COM CLI REFERENCE GUIDE Upgrade The Upgrade command starts a system download and thereby allowing a system upgrade. Syntax upgrade Default Configuration This command has no default configuration. User Guidelines The Upgrade command prompts the user for required information. The TFTP server IP
  • 3Com 3CBLSF50 | User Guide - Page 97
    resets the Switch to factory defaults: Select menu option: initialize WARNING: This command initializes the system to factory defaults (excluding Management IP configuration) and causes a reset reboot Default Configuration This command has no default configuration. User Guidelines There are no user
  • 3Com 3CBLSF50 | User Guide - Page 98
    APPENDIX D: 3COM CLI REFERENCE GUIDE Logout The Logout command terminates the CLI session. Syntax logout Default Configuration This command has no default configuration. User Guidelines There are no user guidelines for this command. Example Select menu option: logout Password The Password command
  • 3Com 3CBLSF50 | User Guide - Page 99
    copy of the signed Declaration of Conformity can be downloaded from the Product Support web page for the Baseline Switch 2226-SFP Plus, 2426-PWR Plus and 2250-SFP Plus at http://www.3Com.com. Also available at http://support.3com.com/doc/3CBLSF_EU_DOC.pdf VCCI Statement Pre-Standard IEEE 802.3at and
  • 3Com 3CBLSF50 | User Guide - Page 100
    100
  • 3Com 3CBLSF50 | User Guide - Page 101
    Auto-negotiation is where two devices sharing a link, automatically configure to use the best common speed. The Auto-negotiation must be enabled for the 1000BASE-T ports to operate at 1000 Mbps, full duplex. that data is efficiently exchanged between Switches in a LAN. BPDU messages detect loops in
  • 3Com 3CBLSF50 | User Guide - Page 102
    5 cabling is better to use for network cabling than Category 3, because it supports both Ethernet (10 Mbps) and Fast Ethernet (100 Mbps) speeds. Category to your network. DHCP Dynamic Host Configuration Protocol. This protocol automatically assigns an IP address for every computer on your network
  • 3Com 3CBLSF50 | User Guide - Page 103
    way for VLANs to communicate across switched networks. IEEE 802.3ad A standard that defines link aggregation. 802 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
  • 3Com 3CBLSF50 | User Guide - Page 104
    switches) that cover a relatively small geographic area (usually not larger than a floor or building). LANs are characterized by high transmission speeds over short distances (up to 1000 metres). Layer 2 Data Link Link Aggregation See Trunking. determine whether a particular IP address is online. It
  • 3Com 3CBLSF50 | User Guide - Page 105
    . Traffic Monitoring Enables the monitoring of port traffic by attaching a network analyzer to one switch port, in order to monitor the traffic of other ports on the Switch. Trunking A method which specifies how to create a single high-speed logical link that combines several lower-speed physical
  • 3Com 3CBLSF50 | User Guide - Page 106
    LAN is a collection of network nodes that share the same collision domain regardless of their physical location or connection point in the network. A VLAN serves as a logical workgroup with no physical barriers, and allows users to share information and resources as though located on the same LAN.
  • 3Com 3CBLSF50 | User Guide - Page 107
    100BASE-TX 101 10BASE-T 101 A auto IP configuration 37 B bandwidth 101 Baseline Switch 2848-SFP 83, 84 C category 3 cables 102 category 5 cables 102 category 5e cables 102 category 6 cables 102 client 102 configuration overview 35 conventions text, About This Guide 8 D DHCP 102 diagram front panel
  • 3Com 3CBLSF50 | User Guide - Page 108
    T TCP/IP 103 defined 105 technical specifications 83 traffic 105 monitoring 66, 70 troubleshooting 75 LED-related issues 76 POST failed 21 trunking See link aggregation U user name default 40 V viewing status information 35 VLANs 44 creating 51 maximum supported 45 sample configurations 49 W Web
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www.3Com.com
Part No. 10016622
Published May 2008
Baseline Switch 2226-SFP Plus
Baseline Switch 2426-PWR Plus
Baseline Switch 2250-SFP Plus
Installation and User Guide
Installations- und Bedienungsanleitung
3CBLSF26
3CBLSF26PWR
3CBLSF50