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.
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CONTENTS Supplying Power to the Switch 20 Checking for Correct Operation 21 Using SFP Tranceivers 22 Approved SFP Transceivers 22 Inserting an SFP Transceiver 22 Removing an SFP Transceiver 23 Performing Spot Checks 23 ABOUT THIS GUIDE Conventions 7 Documentation Comments Product Registration 8 1 8 INTRODUCING THE BASELINE SWITCH Overview of the Baseline Switch 9 Features and Capabilities 9 Autosensing of MDI/MDIX Connections 9 Autonegotiating 10/100 Mbps Ports 9 Power-over-Ethernet Capability 10 Gigab
Automatic IP Configuration 37 IP Setup 38 Backup Configuration 38 Restore Configuration 39 Firmware Upgrade 39 Reset 40 System Access 40 System Name 43 System Time 43 SNMP 43 Configuring VLANs 44 VLAN 45 Forwarding Tagged/Untagged Frames Sample VLAN Configurations 49 Spanning Tree 51 IGMP Snooping & Query 54 Broadcast Storm 55 QoS VoIP Traffic Settings 56 PoE (3CBLSF26-PWR only) 59 Configuring Port Settings 60 Administration 60 Link Aggregation 63 Statistics 66 Security 66 RADIUS Client 66 802.
PC-AT Serial Cable 88 Modem Cable 88 Ethernet Port RJ-45 Pin Assignments D 89 3COM CLI REFERENCE GUIDE Getting Started with the Command Line Interface 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 NOTICES GLOSSARY INDEX 91
ABOUT THIS GUIDE This guide describes how to install your 3Com Switch and perform initial management configurations. It covers the following switches: If release notes are shipped with your product and the information there differs from the information in this guide, follow the instructions in the release notes.
ABOUT THIS GUIDE Table 2 Text Conventions Convention Description The words “enter” and “type” When you 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.” Keyboard key names Words in italics If you must press two or more keys simultaneously, the key names are linked with a plus sign (+). Example: Press Ctrl+Alt+Del Italics are used to: ■ Emphasize a point.
1 INTRODUCING THE BASELINE SWITCH This chapter provides an overview of the features and capabilities of the 3Com Baseline Switch 2226-SFP Plus, 3Com Baseline Switch 2426-PWR Plus, and 3Com Baseline Switch 2250-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 2226-SFP Plus is a versatile, easy-to-use configurable switch.
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 compliant device attached to a port can directly draw power from the Switch over the Ethernet cable without requiring its own separate power source.
Physical Features Figure 3 3CBLSF50 Front and Rear Panels Front Panel The front panel of the Switch contains a series of indicator lights (LEDs) that help describe the state of various networking and connection operations. (1) RJ-45 10/100 Ports WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot be used as standard traditional telephone sockets, or to connect the unit to a traditional PBX or public telephone network.
INTRODUCING THE BASELINE SWITCH network devices, such as IP phones or wireless access points, and automatically supply the required DC power, up to a maximum of 29.6 W measured at the PD, assuming 100 m Cat 5E cable connected between the PD and the Switch 2426-PWR, subject to power being available from the overall power budget.
Physical Features (4) 10/100BASE-TX Link/Activity Status LEDs The top row (3CBLSF50) and the first (top) and third rows (3CBLSF26/3CBLSF26PWR) of LEDs, which are colored yellow or green, show the link, activity and speed status of the related ports: (5) 10/100BASE-TX Duplex Status LEDs (3CBLSF26 and 3CBLSF26PWR Only) The second and fourth row of LEDs, which are colored yellow, show the duplex status of the related ports: Table 2 Table 1 10/100BASE-TX Link/Activity Status LEDs Status Meaning Green Th
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. 1000BASE-T only operates in full-duplex mode. 10/100BASE-TX can operate in half- or full-duplex mode.
Physical Features Table 6 SFP Mode SFP/Duplex Status LEDs SFP/Duplex Meaning Green The SFP module is inserted, regardless of the link status. Off The SFP 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 power, POST, or loopback test has failed.
INTRODUCING THE BASELINE SWITCH Package Contents Before installing and using the Switch, verify that your Switch package is complete. The Switch comes with: ■ One power 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 immediately.
2 INSTALLING THE SWITCH This chapter contains information that you need to install and set up the Switch. It covers the following topics: ■ Important Safety Information ■ Positioning the Switch ■ Rack-Mounting or Free-Standing ■ Supplying Power to the Switch ■ Using SFP Tranceivers ■ Performing Spot Checks Important Safety Information Information (Translation for this would be: Informações de Segurança e Regulatórias da Famila de Switches 3Com) incluido no produto.
INSTALLING THE SWITCH vorhanden ist. Sie können diese Sicherheitsanleitung auf der CD-ROM finden die im Lieferumfang Ihres Netzwerkschalters enthalten ist. Sie können die Anleitungsdatei auch von der 3Com Webseite: www.3Com.com herunterladen. Importante Avviso di Sicurezza Vi preghiamo di leggere attentamente e seguire le istruzioni indicate nel manuale di sicurezza "3Com Switch Family Safety and Regulatory Information", che troverete incluso a questo prodotto.
Rack-Mounting or Free-Standing It is always good practice to wear an anti-static wrist strap when installing network equipment, connected to a ground point. If one is not available, try to keep in contact with a grounded rack and avoid touching the unit's ports and connectors, if possible. Static discharge can cause reliability problems in your equipment. To rack-mount the Switch: 1 Place the unit the right way up on a hard, flat surface with the front facing towards you.
INSTALLING THE SWITCH Montagesatz Anweisungen Der Switch wird mit zwei Halterungen und vier Schrauben geliefert. Diese werden für den Einbau in einem Baugruppenträger benutzt. Bei der Montage der Baugruppe beachten Sie die Anweisungen aus “Positioning the Switch” auf page 18. Der Switch ist eine Baueinheit hoch und passt in einen Standard 19'' (Zoll) Baugruppenträger. ACHTUNG: Entfernen Sie alle Kabel, bevor Sie fortsetzen.
Supplying Power to the Switch CAUTION: The Switch has no ON/OFF switch. The only way to power on and power off the Switch is by connecting and disconnecting the power cord. This is called “power cycling”. Table 8 Power LED POST Indications Status Meaning Green The unit is powered on and ready to use. To power on the Switch: Yellow 1 Plug the power cord into the power socket on the rear panel of the Switch. Refer to “(9) Power Socket” on page 15 for more information.
INSTALLING THE SWITCH ■ 1000BASE-SX SFP transceiver Use this transceiver to connect the Switch directly to a multimode fiber-optic cable. ■ 1000BASE-LX SFP transceiver Use this transceiver to connect the Switch directly to a single mode fiber-optic cable or to multimode fiber using a conditioned launch cable. Using SFP Tranceivers The following sections describe how to insert an SFP transceiver into an SFP slot. SFP transceivers are hot-insertable and hot-swappable.
Performing Spot Checks Figure 5 Inserting an SFP Transceiver 6 Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection. 7 Check the Module Active LEDs on the front of the Switch to ensure that the SFP transceiver is operating correctly. 23 Removing an SFP Transceiver Removing an SFP transceiver does not require powering off the Switch. To remove an SFP transceiver: 2 Gently slide the transceiver into the SFP slot until it clicks into place.
INSTALLING THE SWITCH Table 9 Items to Check Cabling Check that all external cabling connections are secure and that no cables are pulled taut. 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 75.
3 CONNECTING TO THE WEB INTERFACE The Switch has a built-in Web interface that you 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 how to gain access to the Web interface using the Discovery application.
CHAPTER 3: CONNECTING TO THE WEB INTERFACE switch will try to obtain an IP address from a DHCP server (assuming the Switch is connected into a network where one is available). If there is no DHCP server available, or you are configuring the Switch in a stand-alone mode, the Switch will allocate itself an “Auto IP” address of 169.254.xx.yy. These last two numbers are taken from the last two numbers of the MAC address.
Logging On to the Web Interface summary to display the new IP settings. Figure 7 shows what you should expect to see. Note that when a manual IP address has been assigned it will not revert back to the DHCP mode on subsequent re-boots. You will now know either the DHCP or manual IP address and you can now move on to using the Web interface. IP address. After the Web interface loads in your Web browser, the first page that appears is the logon screen.
CHAPTER 3: CONNECTING TO THE WEB INTERFACE Figure 10 3CBLSF26PWR Switch Screen Layout Navigating the Web Interface Sub-Menu Tabs The Web interface has 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 of the Web interface. When you click an item on the menu, the related screen appears in the main part of the interface. Some menu items will give you sub-menu tabs to choose from.
Navigating the Web Interface 29 Table 1 lists the available items on the menu. Figure 11 3CBLSF50 Switch Screen Layout LWP Sub-Menu Tabs Table 1 Available Menu Items Menu Item Device Summary Description Contains tabs that allow you to: Provide a summary of the Switch’s basic settings and versions of current components. ■ Set the polling interval in seconds. ■ Display the description for each color coded port. ■ Menu System Information Save Configuration Saves the Switch’s configuration.
CHAPTER 3: CONNECTING TO THE WEB INTERFACE Menu Item SNMP Device VLAN Spanning Tree Description Menu Item Contains tabs that allow you to: ■ Set SNMP Agent Status. ■ Add community strings. ■ Remove community strings. VoIP Trafic Setting Contains tabs that allow you to: ■ Display spanning tree information for every port. ■ Modify spanning tree global settings. ■ Modify spanning tree settings for ports. IGMP Snooping & Query Enables or disables IGMP snooping and IGMP query mode.
Accessing the Switch using the 3Com Switch Detect Application Menu Item 802.1X Settings Monitoring Address Table Port Mirroring Cable Diagnostics Description Contains tabs that allow you to: ■ Display an authentication summary for all ports. ■ Configure system authentication settings. 31 Port Status There is an image of the Switch’s front panel in the Device View page, which indicates ports that are currently in use. Display Switch monitoring information.
CHAPTER 3: CONNECTING TO THE WEB INTERFACE Running the 3Com Switch Detect Application Figure 12 The 3Com Switch Detect Welcome Screen The 3Com Baseline Switch CD-ROM contains, in addition to the documentation, the 3Com Switch Detect Application. To use 3Com Switch Detect to connect to the Web interface of your Switch, do the following: 1 On the computer that is connected to your Switch (either directly or on a network that is on the same subnet), insert the CD-ROM into its CD drive.
Accessing the Switch using the 3Com Switch Detect Application Figure 13 The 3Com Switch Detect Search Screen 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 browser will open and connect to the home page of the Switch.
CHAPTER 3: CONNECTING TO THE WEB INTERFACE
4 CONFIGURING THE SWITCH FROM THE WEB INTERFACE This chapter provides information on how to configure the Switch’s advanced features. Topics include: ■ Device Summary Information ■ Administration Settings ■ Configuring VLANs ■ Configuring Port Settings ■ Security ■ Monitoring Configuration Overview The Switch is shipped ready for use. 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.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Device View Polling Interval Contains fields that display the system, switch, and management information to identify the Switch. The fields include Product Description, System Location, System Contact, Serial Number, Product 3C Number, MAC Address, Software Version, Unit Uptime, Bootroom Version, and Hardware Version. Enter the interval in seconds you would like the Switch to refresh. (Range: 10 to 180 seconds; 0 to disable polling).
Administration Settings Color Key ■ System Name Description of the color coding. ■ System Time ■ SNMP Figure 17 Color Key 37 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 assigning a static IP address.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE To determine the exact IP address that the Switch assigns to itself during auto IP configuration, refer to the label on the top cover of the Switch. This label contains the MAC address and default IP address of the Switch. If you change the IP address of the Switch it will be necessary to use this new address in the web browser in order to access the Switch at it's new IP address.
Administration Settings Restore Configuration 39 Figure 21 Upgrade Screen To reload configuration settings that you previously saved to a file: 1 Click Administration, Backup & Restore, then the Restore Configuration tab. The Restore Configuration screen appears. Figure 20 Restore Configuration 1 Click Administration, then Firmware Upgrade on the menu. The Firmware Upgrade screen appears.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE A progress screen displays while the upgrade is taking place. The upgrade procedure can take a few minutes, and is complete when the progress bar has finished running and the Power LED has stopped flashing and is permanently green. CAUTION: Do not interrupt power to the Switch during the upgrade procedure. If you do, the firmware may be corrupted and the Switch may not start up properly afterwards.
Administration Settings To ensure that unauthorized users do not access the Web interface, 3Com recommends that you set an admin password when you first configure the Switch. Create User Even if you do not intend to actively manage the Switch, 3Com recommends that you change the password to prevent unauthorized access to your network. Figure 23 Create User Screen The password can be up to 8 characters long and is case-sensitive.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Modify User Remove User This page allows you to modify a user’s access level and password. To remove a user from the Switch, click on the user name, then click Remove.
Administration Settings System Name Use these user definable fields to help identify your switch. Figure 26 System Name Screen 43 SNMP Simple Network Management Protocol (SNMP) is a communication protocol designed specifically for managing devices on a network. Equipment commonly managed with SNMP includes switches, routers and host computers.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE SNMP Add SNMP Remove This page allows you to create community strings for management access. This page allows you to remove community strings. Figure 30 SNMP Remove Screen Figure 29 SNMP Add Screen Configuring VLANs A virtual LAN (VLAN) is a collection of network nodes that share the same collision domain, regardless of their physical location or connection point in the network.
Configuring VLANs You can use the Switch to create VLANs to organize any group of ports into separate broadcast domains. VLANs confine broadcast traffic to the originating group and help eliminate broadcast storms in large networks. This also provides for a more secure and cleaner network environment. You can create up to 256 VLANs, 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.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Setup Use the Setup screen to create VLANs on the Switch. To propagate information about VLAN groups used on this Switch to external devices, you must specify a VLAN ID for each VLAN. Figure 31 Setup Screen interface. If this happens, you will need to reset the Switch to factory settings. By default, all ports belong to VLAN 1 as untagged members. However, they can belong to multiple VLANs as tagged members.
Configuring VLANs 1 Enter a set of VLANs or select all VLANs to configure, then click Select. 2 From the drop down menu, select a VLAN to modify. 3 Select a membership use. Available options for each port include (only one option can be associated with a single port): 1 Select a membership use. Available options for each port include (only one option can be associated with a single port): ■ Not a member ■ Tagged ■ Untagged ■ Tagged 2 Select a port to associate with the membership.
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 Port Detail Choose a port to display the tagged and untagged VLAN memberships it is associated with. rename. Enter a new VLAN name and click Apply. Figure 36 Port Detail Screen Remove Use the Remove screen to remove a VLAN.
Configuring VLANs VLAN Detail ■ When a port receives a tagged frame with a VLAN ID and the port is a member (untagged or tagged) of that VLAN, the frame is accepted. Otherwise the if the port is not a member of that VLAN, the frame is discarded. ■ When a port receives an untagged frame and the port is an untagged member of a VLAN, the frame is accepted and assigned to that VLAN ID. Otherwise if the port is not an untagged member of any VLAN, the frame is discarded.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Setting Up Two VLANs on the Same Switch Figure 38 illustrates how you can set up a simple VLAN on the Switch using desktop connections. Figure 38 Desktop VLAN Configuration Endstations in VLAN 1 Endstations in VLAN 2 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.
Configuring VLANs Figure 39 Tagged VLAN Configuration 51 2 On Switch 1, set the ports that you want to be part of VLAN2 to Untagged. Set one port (for example, port 16) to Tagged. Click Apply. 3 On Switch 2, set the ports that you want to be part of VLAN2 to Untagged. Set one port (for example, port 8) to Tagged. Click Apply. 4 Connect the Tagged port on Switch 1 (in this example, port 16) to the Tagged port on Switch 2 (in this example, port 8).
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE tree network. The bridging device, known as the Root Bridge, generates bridge protocol data units (BPDUs) on all ports at a regular interval, known as the Hello Time. All other spanning tree-compliant devices on the network have a designated Root Port. This is the Port nearest the Root Bridge and it is used for receiving the BPDUs initiated by the Root Bridge.
Configuring VLANs Setup To use spanning tree, use the Setup tab and choose Enabled from the State drop down menu, fill in the setup parameters, and click Apply. Figure 41 Spanning Tree Setup Screen 53 that the optimal path is maintained between spanning tree-compliant networked devices by: ■ Disabling redundant paths when the main paths are operational. ■ Enabling redundant paths if the main paths fail.
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 to determine the best path between devices. The path cost method is used to determine the range of values that can be assigned to each interface.
Configuring VLANs Broadcast Storm A broadcast storm occurs when an incorrect packet is sent out on a network, causing most hosts to respond all at once and typically with wrong answers that start the process 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 Summary Use the Summary tab to display the broadcast mode and rate for all the ports.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Modify ■ Setup Use the Modify tab to set the Switch’s broadcast storm control and threshold limits. ■ Port Setup ■ Port Detail The settings include: ■ OUI Summary ■ OUI Modify ■ Status – Enables and disables broadcast storm control. ■ Packet Rate Threshold – Sets the broadcast storm threshold (64 to 1000000 kilobits per second).
Configuring VLANs ■ Setup Use the Setup tab to configure the global settings for the Voice VLAN. The following options are available: ■ ■ ■ Voice VLAN Status – Enable or disable Voice VLAN for the switch. Voice VLAN ID – Input the Voice VLAN ID for the switch. Voice VLAN Aging Time – Input the aging time. You must first create a VLAN from the VLAN Setup page before you can assign and configure a Voice VLAN.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Port Detail OUI Add Use the Port Detail tab to display the Voice VLAN information for selected ports. Use the OUI Modify tab to add to the list of Organizational Unique Identifier. The following options are available: Figure 49 QoS Port Detail Screen ■ Telephony OUI – Input a new company identifier to add to the list. ■ Description – Input a description for the new company identifier.
Configuring VLANs Figure 51 QoS OUI Modify Screen 59 Summary Use the Summary tab to display the device and port PoE settings. Figure 52 PoE Summary Screen PoE (3CBLSF26-PWR only) Click Device, then PoE on the menu. A screen appears with two tabs 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.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Note that the Switch operates a port based PoE priority scheme. Lower numbered ports have priority over higher numbered ones. If you need to ensure that critical devices get power where you are likely to exceed the total power budget available, you should connect these to low port numbers and ensure these ports have their Guarantee power set.
Configuring Port Settings Figure 54 Port Administration Summary Screen 61 Detail Use the Detail tab to display detailed port setting information for a port. Figure 55 Port 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.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE ■ disabled, packets may be dropped under certain periods of high traffic. If you modify any of these settings, click Apply to save your changes. Flow control is disabled by default. Figure 56 Port Administration Setup Screen Speed – Sets the speed mode of the port. Available options include auto, 10, 100, and 1000. For 1000 Mbps connections, see “Speed/Duplex for 1000 Mbps Connections” below.
Configuring Port Settings 63 1000 Mbps connections are always full-duplex. Half-duplex connections are only available for 10 Mbps and 100 Mbps settings. switch or to an Internet backbone, you can aggregate links on the Switch to increase throughput and prevent packet loopback between switches. CAUTION: Before manually setting a port to full-duplex, verify that the device connected to the port is also manually set to the same speed and duplex setting.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Summary Create Use the Summary tab to display a list of configured link aggregation Group IDs and the associated member Ports. Use the Create tab to add ports to a group membership. Figure 58 Link Aggregation Create Screen Figure 57 Link Aggregation Summary Screen To create a new link aggregation group: 1 Enter a link aggregation group ID in the text box. 2 Select the ports to add to the goup. 3 Click Apply.
Configuring Port Settings 65 Modify Remove Use the Modify tab to reassign member ports of a link aggregation group. Use the Remove tab to delete a link aggregation group. Figure 60 Link Aggregation Remove Screen Figure 59 Link Aggregation Modify Screen To remove a link aggregation group: 1 From the link aggregation group list, select the aggregated group to remove. 2 Click Remove. To modify a link aggregation group: 1 Select the aggregation group to modify, then click Select.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Statistics The Switch allows you to display detailed statistics of one, several, or all ports. Click Select None to remove all ports statistics. Click Clear All Counters to set all port statistic counters back to zero. Figure 61 Port Statistics Screen Security Using the Web interface, you can configure the RADIUS Client and 802.1X settings. The Security menu includes two items: ■ RADIUS Client ■ 802.
Security Configure 67 Figure 62 RADIUS Client Configure Screen The following parameters are available: ■ Max Retries – Sets the number of retries of sending authentication requests. ■ Timeout – Sets the interval between sending authentication requests. ■ IP Address – The IP address of the RADIUS server. ■ UDP port – The RADIUS server UDP port used for authentication messages. ■ Key – Sets the RADIUS encryption key.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE Summary ■ Use the Summary tab to display the 802.1X 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 or multiple hosts (clients) to connect to an 802.1X-authorized port.
Monitoring used to detect if a new device is plugged into a switch port. (Default: Disabled) ■ Max Count – The maximum number of hosts that can connect to a port when the Multi-Host operation mode is selected. (Range: 1-1024; Default: 5) ■ Reauthentication Period – Sets the time period after which a connected client must be re-authenticated.
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 Port Summary Use the Port Summary tab to display the address table information for selected ports. Figure 66 Address Table Port Summary Screen Summary Use the Summary tab to display the address table information for all ports.
Monitoring Switch takes all the traffic going in or out of the mirror port and copies it to the monitor port. CAUTION: The monitor port should have a higher bandwidth 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.
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. Summary Use the Summary tab to display information on Test Result, Cable Fault Distance, or Last Update for every port on the switch. Figure 69 Cable Diagnostic Summary Screen Cable Diagnostics The Switch provides a cable diagnostic utility, which helps you detect and resolve issues with the attached cables.
Monitoring 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 the length of the transmit pairs. The second digit the length of the receive pairs.
CHAPTER 4: CONFIGURING THE SWITCH FROM THE WEB INTERFACE
5 TROUBLESHOOTING This chapter lists some issues that you may encounter while installing, using, and managing the Switch, with suggested courses of corrective action to take. Do as instructed and wait for the remainder of the switch initialization to complete. If you encounter an issue that is not listed here and you cannot solve it, check the 3Com Knowledgebase at http://knowledgebase.3com.com before contacting your local technical support representative.
CHAPTER 5: TROUBLESHOOTING The Switch will perform automatic IP configuration after you reset it. See “Automatic IP Configuration” on page 37 for more information. A link is connected, but the Link/Activity LED for the port is off. There is a problem with this connection. Verify that: ■ The device being connected to is powered on and operating correctly. ■ The cable is connected at both ends. ■ The cable is not damaged.
If the Problem Persists The Link/Activity LED is on, but network performance is poor The Switch supports full-duplex autonegotiation. If the connected device does not support autonegotiation, ensure that it is configured for half-duplex operation only.
CHAPTER 5: TROUBLESHOOTING
A OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product Warranty and other service benefits start from the date of purchase, so it is important to register your product quickly to ensure you get full use of the warranty and other service benefits available to you. Warranty and other service benefits are enabled through product registration. Register your product at http://eSupport.3com.com/. 3Com eSupport services are based on accounts that you create or have authorization to access.
APPENDIX A: OBTAINING SUPPORT FOR YOUR PRODUCT Updates you must first register your product on the 3Com Web site at http://eSupport.3com.com/. ■ A list of system hardware and software, including revision level First time users will need to apply 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.
Contact Us 81 . Country Telephone Number Asia, Pacific Rim Telephone Technical Support and Repair Australia Hong Kong India Indonesia Japan Malaysia New Zealand Philippines PR of China Singapore South. Korea Taiwan Thailand 1800 075 316 2907 0456 000 800 440 1193 001 803 852 9825 03 3507 5984 1800 812 612 0800 450 454 1800 144 10220 or 029003078 800 810 0504 800 448 1433 080 698 0880 00801 444 318 001 800 441 2152 Pakistan Call the U.S.
APPENDIX A: OBTAINING SUPPORT FOR YOUR PRODUCT Country Telephone Number Latin America Telephone Technical Support and Repair From the Caribbean, Central and South America, call: Antigua Argentina Aruba Bahamas Barbados Belize Bermuda Bonaire Brazil Cayman Chile Colombia Costa Rica Curacao Ecuador Dominican Republic Guatemala Haiti Honduras Jamaica Martinique Mexico Nicaragua Panama Paraguay Peru Puerto Rico Salvador Trinidad and Tobago Uruguay Venezuela Virgin Islands 1 800 988 2112 0 810 444 3COM 1
B TECHNICAL INFORMATION 3CBLSF26 Related Standards The Baseline Switch 2226-SFP Plus has been designed to the following standards: Functional MAC Address Safety IEEE 802.3 (Ethernet), IEEE 802.3u (Fast Ethernet), IEEE 802.3ab and IEEE 802.3z (Gigabit Ethernet), IEEE 802.3x (Flow Control), IEEE 802.1D 1993 (Bridging), IEEE 802.1Q 1998 (Virtual LAN) 8192 UL 60950-1, EN 60950-1, CSA 22.
APPENDIX B: TECHNICAL INFORMATION 3CBLSF26PWR Related Standards The Baseline Switch 2426-PWR Plus has been designed to the following standards: Functional MAC Address Safety IEEE 802.3 (Ethernet), IEEE 802.3u (Fast Ethernet), IEEE 802.3ab and IEEE 802.3z (Gigabit Ethernet), IEEE 802.3x (Flow Control), IEEE 802.1D 1993 (Bridging), IEEE 802.3af (Power over Ethernet), IEEE 802.3at (Power over Ethernet Plus) 8192 UL 60950-1, EN 60950-1, CSA 22.
3CBLSF50 Related Standards 3CBLSF50 Related Standards The Baseline Switch 2250-SFP Plus has been designed to the following standards: Functional MAC Address Safety ISO 8802-3, IEEE 802.3 (Ethernet), IEEE 802.3u (Fast Ethernet), IEEE 802.3ab and IEEE 802.3z (Gigabit Ethernet), IEEE 802.3x (Flow Control), IEEE 802.1D (Bridging) UL 60950-1, EN 60950-1, CSA 22.
APPENDIX B: TECHNICAL INFORMATION
C PIN-OUTS Table 1 Console Cable A Console cable is an 8-conductor RJ45-to-DB9 cable. 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.
APPENDIX C: PIN-OUTS Null Modem Cable Modem Cable RJ-45 to RS-232 25-pin Cable connector: RJ-45 female RJ-45 to RS-232 25-pin PC/Terminal Cable connector: 25-pin male/female Screen TxD RxD Ground RTS CTS Shell 3 2 5 7 8 1 3 2 7 4 20 Screen RxD TxD Ground RTS DTR DSR DCD DTR 6 1 4 5 6 8 CTS DSR DCD only required if screen always required required for handshake PC-AT Serial Cable RJ-45 to 9-pin Cable connector: RJ-45 female PC-AT Serial Port Cable connector: 9-pin female Screen DTR TxD R
Ethernet Port RJ-45 Pin Assignments Ethernet Port RJ-45 Pin Assignments Table 2 RJ-45 MDI Pin Assignments Pin Number 10/100 Table 3 RJ-45 MDIX Pin Assignments Pin Number 10/100 1000 Ports configured as MDIX 1000 Ports configured as MDI 1 Receive Data + Bidirectional Data B+ 2 Receive Data - Bidirectional Data B- 1 Transmit Data + Bidirectional Data A+ 3 Transmit Data + Bidirectional Data A+ 2 Transmit Data - Bidirectional Data A- 4 Not assigned Bidirectional Data D+ 3 Receive
APPENDIX C: PIN-OUTS
D 3COM CLI REFERENCE GUIDE This section describes using the Command Line Interface (CLI) to manage the device. The device is managed through the CLI from a direct connection to the device console port. 6 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.
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 message is displayed: Session closed by automatic logout. Concurrent CLI Sessions The command line interface supports one CLI session.
CLI Commands ? The ? command displays a list of CLI commands on the device. Syntax ? Default Configuration This command has no default configuration. User Guidelines There are no user guidelines for this command. Example The following displays the list presented for the ? command: Select menu option#? This command line console allows you to configure and manage your system by making selections from the displayed menu.
APPENDIX D: 3COM CLI REFERENCE GUIDE Ping Summary The Ping command sends ICMP echo request packets to another node on the network. Syntax ping [IP address | URL| hostname] Parameters ■ IP Address — IP address to ping. ■ URL — URL address to ping. ■ hostname — hostname to ping. (Range: 1 - 158 characters) The Summary command displays the current IP configuration and software versions running on the device. It is intended for devices that support separate runtime and bootcode Images.
CLI Commands ipSetup 95 Example 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. The following example displays an IP address configured manually: Select menu option: ipSetup Enter configuration method (auto,manual)[auto]: manual Enter IP Address [0.0.0.0 ]: 192.168.1.1 Enter Subnet Mask [255.255.0.0 ]: 255.255.255.0 Enter Default Gateway [192.168.1.
APPENDIX 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 address and the software image file name on the server must be specified. During the upgrade process, a series of dots appear representing the upgrade process in the CLI interface.
CLI Commands Initialize The Initialize command resets the device configuration to factory defaults, retaining the current IP configuration. Reboot The Reboot command simulates a power cycle of the device. Syntax Syntax reboot Initialize Default Configuration Default Configuration This command has no default configuration. This command has no default configuration. User Guidelines User Guidelines The system prompts for confirmation of the request.
APPENDIX D: 3COM CLI REFERENCE GUIDE Logout Password The Logout command terminates the CLI session. The Password command changes the user’s password. Syntax Syntax logout password Default Configuration Default Configuration This command has no default configuration. This command has no default configuration. User Guidelines User Guidelines There are no user guidelines for this command. The user needs to login to the session in order to change the password.
REGULATORY NOTICES FCC Statement CE Statements (Europe) This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commerical environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
GLOSSARY 10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE-TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twisted-pair cable. 1000BASE-LX IEEE 802.3z specification for Gigabit Ethernet over 9/125 micron core single-mode fiber cable. Auto-negotiation Auto-negotiation is where two devices sharing a link, automatically configure to use the best common speed.
GLOSSARY Category 3 Cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-568 standard. Category 3 is voice grade cable and can only be used in Ethernet networks (10BASE-T) to transmit data at speeds of up to 10 Mbps. Category 5 Cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-568 standard. Category 5 can be used in Ethernet (10BASE-T) and Fast Ethernet networks (100BASE-TX) and can transmit data at speeds of up to 100 Mbps.
Full Duplex IETF A system that allows packets to be transmitted and received at the same time and, in effect, doubles the potential throughput of a link. Internet Engineering Task Force. An organization responsible for providing engineering solutions for TCP/IP networks. In the network management area, this group is responsible for the development of the SNMP protocol. Half Duplex A system that allows packets to be transmitted and received, but not at the same time.
GLOSSARY 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). purpose of exchanging information or sharing resources. Networks vary in size, some are within a single room, others span continents. Ping Layer 2 Data Link layer in the ISO 7-Layer Data Communications Protocol.
Server A computer in a network that is shared by multiple end stations. Servers provide end stations with access to shared network services such as computer files and printer queues. SFP Small Form Factor Pluggable (SFP) Connectors are based on an open standard that enables hot swapping of various type of fiber optic and copper-based transceivers into the host equipment.
GLOSSARY VLAN A Virtual 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.
INDEX Numbers D I 1000BASE-LX 101 1000BASE-SX 101 1000BASE-T 101 100BASE-TX 101 10BASE-T 101 DHCP 102 diagram front panel 11 dynamic host control protocol 102 IEEE 103 IETF 103 IP address auto configuration 37 modifying 37 IP defined 103 ISP defined 103 A E Ethernet 102 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
INDEX P T password changing 40 default (blank) 40 setting 36 port settings configuring 56, 60, 66 positioning the Switch 18 POST 21 protocol defined 104 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 R U repair authorization number by FAX, Asia and Pacific Rim 81 resetting to factory defaults 75 RJ-45 defined 104 user name default 40 S server defined 105 SFP transceivers appr
