Baseline Switch 2226-SFP Plus Baseline Switch 2426-PWR Plus Baseline Switch 2250-SFP Plus User Guide 3CBLSF26H 3CBLSF26PWRH 3CBLSF50H Part No.: 10017022 Manual Version: 6W104 www.3com.
Copyright © 2008-2009, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation. 3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
About This Manual Organization 3Com Baseline Switch User Guide is organized as follows: Chapter Contents 1 Getting Started This chapter contains introductory information about the installation of the switch and how they can be used in your network. 2 Connecting To the Web Interface This chapter introduces the setting the menu items and buttons that are available on the Web interface. 3 Configuring the Switch This chapter introduces how to configure the switch in detail.
Convention # Description A line starting with the # sign is comments. GUI conventions Convention Description Boldface Window names, button names, field names, and menu items are in Boldface. For example, the New User window appears; click OK. > Multi-level menus are separated by angle brackets. For example, File > Create > Folder. Symbols Convention Description Means reader be careful. Improper operation may cause data loss or damage to equipment. Means a complementary description.
Table of Contents 1 Getting Started···········································································································································1-1 Introducing the Switch·····························································································································1-1 Overview of the Switch ····················································································································1-1 Summary of Hardware Features ···········
Creating VLANs·····························································································································3-19 Modifying VLAN·····························································································································3-19 Modifying Port VLAN Settings ·······································································································3-20 Renaming VLANs ········································································
Save Configuration ························································································································3-78 Resetting the Switch······················································································································3-79 Managing System Files·························································································································3-79 Managing System Logs ·························································
Contact Us ··············································································································································6-2 7 Safety Information ·····································································································································7-1 Important Safety Information···················································································································7-1 8 Regulatory Notices ·····························
1 Getting Started z This manual applies to the Baseline Switch 2250-SFP Plus, Baseline Switch 2226-SFP Plus, and Baseline Switch 2426-PWR Plus, which are hereinafter referred to as the switch. z This manual takes the Web interfaces of the Baseline Switch 2426-PWR Plus as an example. This chapter contains introductory information about the installation of the switch and how they can be used in your network.
Feature Description Forwarding Modes Store and Forward. Duplex Modes Half and full duplex on all front panel ports. Auto MDI/MDIX Supported on all ports. If fiber SFP transceivers are used, Auto MDIX is not supported. Flow Control In full duplex operation all ports are supported. Traffic Prioritization Four traffic queues per port. 10/100 Mbps ports.
Figure 1-3 Baseline Switch 2250-SFP Plus 50-Port—front panel. LED Status Indicators The Switch provides LED indicators on the front panel for your convenience to monitor the switch. Table 1-2 describes the meanings of the LEDs. Table 1-2 Description on the LEDs of the Switch LED Status Green The switch starts normally. The LED flashes when the system is performing Power-On Self-Test (POST). Yellow The system has failed the POST. OFF The switch is powered off.
LED Status Description The link has not been established, either nothing is connected to the port, or there is a problem: z z OFF z Check that the attached device is powered on. Check that the cable or fiber is the correct type and is not faulty. For fiber connections, ensure that the receive (RX) and transmit (TX) cable connectors are not swapped. If these checks do not identify the cause of the problem, it may be that the unit or the device connected to the port is faulty.
Specification 2226-SFP Operating humidity (noncondensing) 20% to 85% Storage humidity (noncondensing) 10% to 90% 2426-PWR 2250-SFP Installing the Switch This section contains information that you need to install and set up the switch.
z Air flow around the unit and through the vents on the side of the case is not restricted (3Com recommends that you provide a minimum of 25 mm (1 in.) clearance). z The air is as free from dust as possible. z Temperature operating limits are not likely to be exceeded. It is recommended that the unit is installed in a clean, air conditioned environment. It is always good practice to wear an anti-static wrist strap when installing network equipment, connected to a ground point.
Figure 1-4 Rack Mounting the Unit 4) Repeat steps 2 and 3 for the other side of the unit. 5) Insert the unit into the 19-inch rack and secure with suitable screws (not provided). 6) Reconnect the cables. Placing Units On Top of Each Other If the switch units are free-standing, up to six units can be placed one on top of the other. If you are mixing a variety of Baseline and Super Stack units, the smaller units must be positioned at the top.
Checking for Correct Operation After you power on the switch, it automatically performs a power-on self-test (POST). During POST, the Power LED on the front panel of the switch flashes green. When POST is complete, the Power LED turns green. If the Power LED turns yellow after POST, it means that POST failed and the switch has entered fail-safe mode. The following summarizes the possible colors for the Power LED after POST.
Approved SFP Transceivers The following list of approved SFP transceivers is correct at the time of publication: z 3CSFP91 SFP (SX) z 3CSFP92 SFP (LX) To access the latest list of approved SFP transceivers for the switch on the 3Com Web site, enter this URL into your Internet browser: http://www.3com.com 3Com recommends using 3Com SFPs on the switch. If you insert an SFP transceiver that is not supported, the switch will not recognize it.
SFP transceivers are keyed and can be properly inserted only one way. If the transceiver does not click when you insert it, remove it, turn it over, and reinsert it. 3) Remove the plastic protective cover, if fitted. 4) Connect the fiber cable. 5) Attach a male duplex LC connector on the network cable into the duplex LC connector on the transceiver. 6) Connect the other end of the cable to a device fitted with an appropriate Gigabit Ethernet connection.
Automatic IP Configuration using DHCP When you use the automatic IP configuration method, the switch tries to obtain its IP information without requesting user intervention from a DHCP server on the network. You should use the automatic IP configuration method if: z Your network uses DHCP to allocate IP information, or z Flexibility is needed.
2 Connecting To the Web Interface The switch has a built-in Web interface that you can use to set the user password, change the IP address that is assigned to the switch, and configure its advanced settings. This chapter introduces the setting the menu items and buttons that are available on the Web interface.
Default User and Password If you intend to manage the switch or to change the default password, you must log in with a valid user name and password. The switch has one default user name. The default user is listed in Table 2-2.
Figure 2-2 Switch Screen Layout Table 2-3 Available Menu Items Menu Item Description Contains tabs that allow you to: z Device Summary z Save Configuration Provide a summary of the switch’s basic settings and versions of current components. Display the description for each color coded port. Saves the switch’s configuration IP Setup Allows you to setup, modify, or view the IP configuration parameters.
Menu Item Description Contains tabs that allow you to: z z VLAN z z z z z Create a VLAN. Modify a VLAN. Modify VLAN membership for a port. Rename a VLAN. Remove a VLAN. Display VLAN membership for a port. Display VLAN information. Allows you to configure a Spanning Tree Protocol. Contains tabs that allow you to: Spanning Tree z z z Device Display selected spanning tree information for every port. Display individual port spanning tree information. Modify the spanning tree settings for a port.
Menu Item Description Contains tabs that allow you to: Administration z z z Display selected port information for the entire switch. Display individual port information. Modify the port settings. Contains tabs that allow you to: z Link Aggregation Port z z z Display link aggregation summary. Create an aggregation group. Modify the port memberships. Remove an aggregation group. LACP Configures the LACP. Statistics Display statistics for a selected port.
3 Configuring the Switch Configuring System Access Network administrators can define user name, password, and access level for users using the System Access Interface. The Multi-Session Web feature is enabled on switch and allows 10 users to be created and access the switch concurrently. Access levels provide read or read/write permissions to users for configuring the switch. Login information is managed in the local database. A unique password is required of each user.
The System Access Setup Page contains the following fields: Table 3-1 System Access Setup Page item description Item User Name Description Defines the user name. The default value is admin. Defines the user access level. The lowest user access level is Monitor and the highest is Management. Access Level z z Management: Provides the user with read and write access rights. This is the default. Monitor: Provides the user with read access rights. Password Defines the local user password.
Removing System Access The System Access Remove Page allows network administrators to remove users from the System Access Interface. The last user with management access may not be deleted. Click Administration > System Access > Remove. The System Access Remove Page opens. Figure 3-3 System Access Remove Page Viewing System Access Settings The System Access Summary Page displays the current users and access levels defined on the switch. Click Administration > System Access > Summary.
Table 3-3 System Access Summary Page item description Item Description User Name Displays the user name. Access Level Displays the user access level.
Configuring ARP Settings The Address Resolution Protocol (ARP) converts IP addresses into physical addresses, and maps the IP address to a MAC address. ARP allows a host to communicate with other hosts when only the IP addresses of its neighbors are known. This section includes the following topics: z Defining ARP Settings z Removing ARP Entries z Viewing ARP Settings Defining ARP Settings The ARP Settings Setup Page allows network managers to define ARP parameters for specific interfaces.
Figure 3-7 ARP Entries Remove Page The ARP Entries Remove Page contains the following fields: Table 3-6 ARP Entries Remove Page item description Item Description Specifies the types of ARP entries that are cleared. The possible values are: Clear ARP Table Entries z z z z None: Maintains the ARP entries. All: Clears all ARP entries. Dynamic: Clears only dynamic ARP entries. Static: Clears only static ARP entries. Interface Indicates the VLAN for which ARP parameters are defined.
Figure 3-8 ARP Settings Summary Page The ARP Settings Summary Page contains the following fields: Table 3-7 ARP Settings Summary Page item description Item Description Interface Indicates the VLAN for which ARP parameters are defined. IP Address Indicates the IP address, which is associated with the MAC Address. MAC Address Displays the station MAC address, which is associated in the ARP table with the IP address. Displays the ARP table entry type.
Adding MAC Addresses to the Address Table The Address Table Add Page allows the network manager to assign MAC addresses to ports with VLANs. Click Monitoring > Address Table > Add. The Address Table Add Page opens. Figure 3-9 Address Table Add Page The Address Table Add Page contains the following fields: Table 3-8 Address Table Add Page item description Item Description VLAN ID Selects a VLAN ID. MAC Address Defines a MAC address to be assigned to the specific port and VLAN ID.
Figure 3-10 Address Table Aging Time Setup Page Removing MAC Addresses for the specific port The Port Remove Page allows the network manager to remove MAC Addresses for the specific port from the Address Table. Click Monitoring > Address Table > Port Remove. The Port Remove Page opens. Figure 3-11 Port Remove Page 1) Select a port to remove MAC Addresses. 2) Select entries from the address table to be removed. 3) Click Remove.
1) Select entries from the address table to be removed. 2) Click Remove. Viewing Address Table Settings The Address Table Summary Page displays the current MAC address table configuration. Click Monitoring > Address Table > Summary. The Address Table Summary Page opens.
Figure 3-14 Port Summary Page The Port Summary Page contains the following fields: Table 3-10 Port Summary Page item description Item Description Filters the list of MAC addresses displayed according to the type of MAC address configuration. Possible values are: State z z z All: Displays all MAC addresses. Static: Displays the statically configured MAC addresses. Dynamic: Displays the dynamically learned MAC addresses.
Defining Port Settings The Port Setup Page allows network managers to configure port parameters for specific ports. Click Port > Administration > Setup. The Port Setup Page opens. Figure 3-15 Port Setup Page The Port Setup Page contains the following fields: Table 3-11 Port Setup Page item description Item Description Enables and disables the port. The possible field values are: Port State z z z Flow Control No Change: Retains the current port status. Enabled: Enables the port.
z Before manually setting a port to full-duplex mode, verify that the device connected to the port is also manually set to the same speed and duplex setting. If connecting link partners are left to autonegotiate for a link manually set on this switch to full-duplex, they will always negotiate to half-duplex, resulting in a duplex mismatch. This can result in a significant reduction in network performance.
Item Description Displays the configured rate for the port. The port type determines what speed setting options are available. Port speeds can only be configured when auto negotiation is disabled. The possible field values are: Speed z z z z Auto: Use to automatically configure the port. 10M: Indicates the port is currently operating at 10 Mbps. 100M: Indicates the port is currently operating at 100 Mbps. 1000M: Indicates the port is currently operating at 1000 Mbps. Displays the port duplex mode.
Defining Port PoE The Port PoE Setup Page allows the network manager to configure port PoE settings. Click Port > PoE > Setup. The Port PoE Setup Page opens. Figure 3-18 Port PoE Setup Page The Port PoE Setup Page contains the following fields: Table 3-13 Port PoE Setup Page item description Item Description Defines the port PoE state. The possible values are: PoE State z z PoE Mode for selected & enabled ports Enable: Enables the port for PoE. Disable: Disables the port for PoE.
Figure 3-19 Port PoE Summary Page The Port PoE Summary Page contains the following fields: Table 3-14 Port PoE Summary Page item description Item Description Indicates the power source status. The possible field values are: z State z z Device Power Display On: Indicates that the power supply unit is functioning. Off: Indicates that the power supply unit is not functioning. Faulty: Indicates that the power supply unit is functioning, but an error has occurred.
Click Port > Statistics > Summary. The Port Statistics Summary Page opens. Figure 3-20 Port Statistics Summary Page The Port Statistics Summary Page contains the following fields: Table 3-15 Port Statistics Summary Page item description Item Description Defines the amount of time that passes before the interface statistics are refreshed. The possible field values are: Refresh Rate z z z z No Refresh: Indicates that the port statistics are not refreshed.
Item Description Jabbers Displays the total number of received packets that were longer than 9216 octets. This number excludes frame bits, but includes FCS octets that had either a bad Frame Check Sequence (FCS) with an integral number of octets (FCS Error) or a bad FCS with a non-integral octet (Alignment Error) number. The field range to detect jabbers is between 20 ms and 150 ms. Collisions Displays the number of collisions received on the interface since the switch was last refreshed.
Viewing VLAN Port Details z Creating VLANs The VLAN Setup Page allows the network administrator to create or rename VLANs. Click Device > VLAN > Setup. The VLAN Setup Page opens. Figure 3-21 VLAN Setup Page The VLAN Setup Page contains the following fields: Table 3-16 VLAN Setup Page item description Item Description Create VLANs Enter ID of configured VLANs. Create Creates the VLAN ID(s). ID Displays the VLAN ID. Name Displays the user-defined VLAN name.
Figure 3-22 Modify VLAN Page The Modify VLAN Page contains the following fields: Table 3-17 Modify VLAN Page item description Item Select a VLAN to modify Description Selects a VLAN to modify its settings. Selects the membership type for each port on the VLAN. The possible field values are: z Select membership type z z z Untagged: Indicates the interface is an untagged member of the VLAN. Tagged: Indicates the interface is a tagged member of a VLAN. VLAN tagged frames are forwarded by the interface.
Figure 3-23 Modify Port VLAN Page The Modify Port VLAN Page contains the following fields: Table 3-18 Modify Port VLAN Page item description Item Description Selects the membership type for each port on the VLAN. The possible field values are: z Select membership type z z z VLAN ID Untagged: Indicates the interface is an untagged member of the VLAN. Tagged: Indicates the interface is a tagged member of a VLAN. VLAN tagged frames are forwarded by the interface. The frames contain VLAN information.
Figure 3-25 VLAN Remove Page Viewing VLAN Details The VLAN Detail Page provides information and global parameters on VLANs configured on the system. Click Device > VLAN > VLAN Detail. The VLAN Detail Page opens.
Table 3-19 VLAN Detail Page item description Item Select a VLAN to Display Description Selects a VLAN to be display its settings Displays the membership type for each VLAN. The possible field values are: z z z Untagged: Indicates the interface is an untagged member of the VLAN. Tagged: Indicates the interface is a tagged member of a VLAN. VLAN tagged frames are forwarded by the interface. The frames contain VLAN information.
Table 3-20 VLAN Port Detail Page item description Item Description Untagged Membership Indicates the port is an untagged member of the VLAN. Tagged membership Indicates the port is a tagged member of a VLAN. VLAN tagged frames are forwarded by the interface. The frames contain VLAN information. Aggregating Port Overview Link aggregation aggregates multiple physical Ethernet ports into one logical link, called a Link Aggregation Group (LAG).
z Among the ports in an aggregation group that are in up state, the system determines the mater port with one of the following settings being the highest (in descending order) as the master port: full duplex/high speed, full duplex/low speed, half duplex/high speed, half duplex/low speed. The ports with their rate, duplex mode and link type being the same as that of the master port are selected ports, and the rest are unselected ports.
Click Port > Link Aggregation > Create. The Link Aggregation Create Page opens. Figure 3-28 Link Aggregation Create Page The Link Aggregation Create Page includes the following fields: Table 3-21 Link Aggregation Create Page item description Item Description Enter Aggregation Group ID Defines the group ID. Manual Defines Manual Aggregation Static Defines Static LACP Aggregation To create a new link aggregation group: 1) Enter a LAG ID in the box field.
Figure 3-29 Link Aggregation Modify Page Removing Link Aggregation The Link Aggregation Remove Page allows the network manager to remove group IDs containing member ports. Click Port > Link Aggregation > Remove. The Link Aggregation Remove Page opens. Figure 3-30 Link Aggregation Remove Page Viewing Link Aggregation The Link Aggregation Summary Page displays the state of the current link aggregation. Click Port > Link Aggregation > Summary. The Link Aggregation Summary Page opens.
Table 3-22 Link Aggregation Summary Page item description Item Description Group ID Displays the Link Aggregated Group ID. The field range is 1-6. Type Displays the type of link aggregation for the Group ID. The possible field value is Static or LACP. Ports Displays the member ports included in the specified LAG.
Figure 3-33 LACP Summary Page The LACP Summary Page contains the following fields: Table 3-24 LACP Summary Page item description Item Port-Priority Description Displays the LACP priority value for the port. Displays the administrative LACP timeout. The possible field values are: LACP Timeout z z Group ID Long: Specifies the long timeout value. This is the default. Short: Specifies the short timeout value. Display LAG ID which the port belongs to. N/A: unassigned.
network segment. All other ports are blocked, which means that they are prevented from forwarding traffic. The device supports the following STP versions: z Classic STP: Provides a single path between end stations, avoiding and eliminating loops. z Rapid STP: Detects and uses network topologies that provide faster convergence of the spanning tree, without creating forwarding loops.
Table 3-25 STP Global Setup Page item description Item Spanning Tree State Description Defines whether STP is enabled on the switch. The possible field values are: z z z Global Settings BPDU Handling Disable: Disables STP and RSTP on the switch. Classic: Enables STP on the switch. RSTP: Enables RSTP on the switch. Determines how BPDU packets are managed when STP is disabled on the port or switch. BPDUs are used to transmit spanning tree information.
Modifying STP Interface Parameters The STP Interface Parameters Modify Page allows network managers to modify STP parameters to specific interfaces. Click Device > Spanning Tree > Modify. The STP Interface Parameters Modify Page opens. Figure 3-35 STP Interface Parameters Modify Page The STP Interface Parameters Modify Page contains the following fields: Table 3-26 STP Interface Parameters Modify Page item description Item Description Specifies if STP is enabled on the port.
Item Path Cost Description Defines the port contribution to the root path cost. When Default Path Cost is disabled, you can configure it; when Default Path Cost is enabled, you can not configure it , and the possible field values are: z z Port Priority 65535: Indicates Path Cost Default Values is short. This is the default value. 200000000: Indicates Path Cost Default Value is long. Defines the priority value of the port.
Item Root Guard Description Indicates if the interface is acting as the root port of the switch. The possible field values are: z z Enabled: Indicates Root Guard is enabled on the port Disabled: Indicates Root Guard is disabled on the port. Displays the current STP state of a port. If enabled, the port state determines what action is taken on traffic. Possible port states are: z z Port State z z z z Disable: Indicates that STP is currently disabled on the port.
Configuring IGMP Snooping This section contains information for configuring IGMP Snooping. When IGMP Snooping is enabled, all IGMP packets are forwarded to the CPU. The CPU analyzes the incoming packets and determines: z Which ports want to join which Multicast groups. z Which ports have Multicast routers generating IGMP queries. z Which routing protocols are forwarding packets and Multicast traffic.
Item Select VLAN ID IGMP Snooping Status Description Specifies the VLAN ID Defines whether IGMP snooping is enabled on the VLAN. The possible field values are: z z IGMP Query Status Enabled: Enables IGMP Snooping on the VLAN. Disabled: Disables IGMP Snooping on the VLAN. This is the default value. Defines whether IGMP query is enabled on the VLAN. The possible field values are: z z Enabled: Enables IGMP Query on the VLAN. Disabled: Disables IGMP Query on the VLAN. This is the default value.
Table 3-29 MAC Based ACL Setup Page item description Item Selection ACL Description Selects an existing MAC-based ACL to which rules are to be added. Defines a new user-defined MAC-based Access Control List. The options are as follows: Create ACL z z ACL Priority: Sets the ACL priority. The possible field values are 1-100. Rule Priority Type: Sets the rule priority type. CONFIG: You will have to configure the ACL rule priority by yourself, AUTO: the ACL rule priority will be configured automatically.
To define a new MAC-based ACL rule: 1) Select Selection ACL. 2) Select the ACL from the list. 3) Define the fields for the new ACL rule. 4) Click Apply. Modifying MAC Based ACL The MAC Based ACL Modify Page allows the network administrator to modify an existing MAC-based ACL rule. Click Device > ACL > MAC Based ACL > Modify. The MAC Based ACL Modify Page opens. Figure 3-39 MAC Based ACL Modify Page The description of parameters in the page refers to Defining MAC Based ACL.
Table 3-30 MAC Based ACL Remove Page item description Item Description ACL Name Selects a MAC-based ACL for removal. Remove ACL Enables the ACL to be removed. To remove MAC-based ACL: 1) Select the ACL Name to be removed 2) Check Remove ACL. 3) Click Remove. To remove MAC-based ACL rules: 1) Select the ACL Name containing the rules to be deleted. 2) For each rule to be removed, check the box to the left of the row in the rules table. To remove all rules, the topmost box may be checked.
Item Description CoS Classifies traffic based on the CoS tag value. CoS Mask Displays the CoS mask used to filter CoS tags. Ethertype Provides an identifier that differentiates between various types of protocols. Action Indicates the ACL forwarding action. In addition, the port can be shut down, a trap can be sent to the network administrator, or packet is assigned rate limiting restrictions for forwarding. The possible field values are: z z Permit: Forwards packets which meet the ACL criteria.
Item Description Defines the protocol in the rule to which the packet is matched. The possible fields are: Protocol z z Select from List: Selects a protocol from a list by which packets are matched to the rule. Protocol ID: Selects a protocol ID from a list by which packets are matched to the rule. Source Port Defines the source port that is used for matched packets. Enabled only when TCP or UDP are selected in the Protocol list. The field value is either user defined or Any.
1) Select Selection ACL. 2) Select the ACL from the list. 3) Define the fields for the new ACL rule. 4) Click Apply. Modifying IP Based ACL The IP Based ACL Modify Page allows the network administrator to modify IP Based ACL rules. Click Device > ACL > IP Based ACL > Modify. The IP Based ACL Modify Page opens. Figure 3-43 IP Based ACL Modify Page The description of parameters in the page refers to Defining IP Based ACL. 1) Selects the ACL to be modified. 2) Selects the Rule to be modified.
Table 3-33 IP Based ACL Remove Page item description Item Description ACL Name Selects an IP-based ACL for removal. Remove ACL Enables the ACL to be removed. To remove an IP-based ACL: 1) Select an ACL Name to be removed. 2) Check Remove ACL. 3) Click Remove. To remove IP-based ACL rules: 1) Select an ACL Name. 2) For each rule to be removed, check the box to the left of the row in the rules table. To remove all rules, the topmost box may be checked. 3) Click Remove.
Item Description Source IP Address Matches the source IP address to which packets are addressed to the ACL. Source Mask Indicates the source IP address mask. Destination IP Address Matches the destination IP address to which packets are addressed to the ACL. Destination Mask Indicates the destination IP address mask. DSCP Matches the packet DSCP value to the ACL. Either the DSCP value or the IP Precedence value is used to match packets to ACLs.
Removing ACL Binding The ACL Binding Remove Page allows the network administrator to remove user-defined ACLs from a selected interface. Click Device > ACL > ACL Binding > Remove. The ACL Binding Remove Page opens. Figure 3-47 ACL Binding Remove Page The ACL Binding Remove Page contains the following fields: Table 3-36 ACL Binding Remove Page item description Item Description Remove All Port Binding By ACL Remove all the port binding according to the current ACL.
Table 3-37 ACL Binding Summary Page item description Item Description MAC-based ACL Displays the MAC based ACL to which the interface is assigned. IP-based ACL Displays the IP based ACL to which the interface is assigned Configuring QoS Quality of Service (QoS) provides the ability to implement QoS and priority queuing within a network.
Table 3-38 CoS Setup Page item description Item Description Specifies if QoS is enabled on the switch. The possible values are: QoS Mode z z Disabled: Restores the switch factory defaults for QoS values and disables configure QoS values on the switch. Enabled: Enables configure QoS values on the switch. Set Default Sets the default user priority. The possible field values are 0-7, where 0 is the lowest and 7 is the highest priority.
Figure 3-51 Queue Setup Page The Queue Setup Page contains the following fields: Table 3-40 Queue Setup Page item description Item Description HQ-WRR This highest queue is transmitted first if any packets are in the highest queue. When the highest queue is exhausted, the remaining queues are served by WRR. WRR(ratio 1:2:10:15) This queue algorithm specifies which port queue that each packet should be sent to.
Table 3-41 CoS to Queue Setup Page item description Item Description Restore Defaults Restores the switch factory defaults for mapping CoS values to forwarding queues. Class of Service Specifies the CoS priority tag values, where 0 is the lowest and 7 is the highest. Queue Defines the traffic forwarding queue to which the CoS priority is mapped. Viewing CoS to Queue The CoS to Queue Summary Page contains a table that displays the CoS values mapped to traffic queues.
Figure 3-54 DSCP to Queue Setup Page The DSCP to Queue Setup Page contains the following fields: Table 3-43 DSCP to Queue Setup Page item description Item Description Restore Defaults Restores the switch factory defaults for mapping DSCP values to a traffic forwarding queue. DSCP Displays the incoming packet’s DSCP value. CoS Specifies the CoS value forwarding queue to which the DSCP priority is mapped.
Table 3-44 DSCP to Queue Summary Page item description Item Description DSCP Displays the incoming packet’s DSCP value. CoS Indicates the CoS value forwarding queue to which the DSCP priority is mapped. The possible field values are 0-7. Configuring Trust Mode The Trust Setup Page contains information for configuring trust mode on the switch. Click Device > QoS > Trust > Setup. The Trust Setup Page opens.
Figure 3-57 Bandwidth Setup Page The Bandwidth Setup Page contains the following fields: Table 3-46 Bandwidth Setup Page item description Item Ingress Rate Limit Egress Shaping Rates Description Enable Ingress Rate Limit Enables setting an Ingress Rate Limit. Ingress Rate Limit Defines the ingress traffic limit for the port. The field range of nomal port is 3500 - 100,000 kbits per second, and the field range of combo port is 3500 - 1,000,000 kbits per second.
Figure 3-58 Bandwidth Summary Page The Bandwidth Summary Page contains the following fields: Table 3-47 Bandwidth Summary Page item description Item Description Indicates the ingress rate limiting status on the interface. The possible field values are: Ingress Rate Limit Status z z Rate Limit Enabled: Ingress rate limiting is enabled on the interface. Disabled: Ingress rate limiting is disabled on the interface. This is the default. Indicates the ingress traffic limit for the port.
There are two operational modes for IP Phones: z IP phones are configured with VLAN-mode as enabled, ensuring that tagged packets are used for all communications. z If the IP phone’s VLAN-mode is disabled, the phone uses untagged packets. The phone uses untagged packets while retrieving the initial IP address through DHCP. The phone eventually uses the Voice VLAN and starts sending tagged packets.
Defining Voice VLAN Global Settings The Voice VLAN Setup Page provides information for enabling and defining Voice VLAN globally on the switch. Click Device > QoS > VoIP Traffic Setting > Setup. The Voice VLAN Setup Page opens. Figure 3-60 Voice VLAN Setup Page The Voice VLAN Setup Page contains the following fields: Table 3-49 Voice VLAN Setup Page item description Item Description Voice VLAN State Enables or disables Voice VLAN is enabled on the switch.
Table 3-50 Voice VLAN Port Setup Page item description Item Description Specifies the Voice VLAN mode. The possible field values are: z z Voice VLAN Port Mode Voice VLAN Port Security z z No Changes: Maintains the current Voice VLAN port settings. None: Indicates that the selected port will not be added to a Voice VLAN. This is the default value. Manual: Adding a selected port to a Voice VLAN.
Figure 3-63 Voice VLAN OUI Summary Page Viewing Voice VLAN The Voice VLAN Summary Page contains information about the Voice VLAN currently enabled on the switch, including the ports enabled and included in the Voice VLAN. Click Device > QoS > VoIP Traffic Setting. The Voice VLAN Summary Page opens.
Configuring SNMP Simple Network Management Protocol (SNMP) provides a method for managing network devices. The switch supports the following SNMP versions: z SNMP version 1 z SNMP version 2c The SNMP agents maintain a list of variables, which are used to manage the switch. The variables are defined in the Management Information Base (MIB). The SNMP agent defines the MIB specification format, as well as the format used to access the information over the network.
Item Description Selects pre-defined community strings. The possible field values are: Standard z z User Defined Public: Displays the pre-defined public community string name. Private: Displays the pre-defined private community string name. Defines a user-defined community string name. Defines the access rights of the community. The possible field values are: z Access Mode z Read Only: Management access is restricted to read-only, and changes cannot be made to the community.
Figure 3-67 SNMP Traps Setup Page The SNMP Traps Setup Page contains the following fields: Table 3-53 SNMP Traps Setup Page item description Item Description Recipients IP Address Defines the IP address to which the traps are sent. Community String Defines the community string of the trap manager. Trap Version z Defines the trap type. The possible field values are: z SNMP V1: Indicates that SNMP Version 1 traps are sent. SNMP V2c: Indicates that SNMP Version 2 traps are sent.
Configuring LLDP LLDP Overview The Link Layer Discovery Protocol (LLDP) operates on the data link layer. With LLDP, a device can store and maintain information about itself and the directly-connected neighbor devices for network administrators to check link status. LLDP Operating Mode LLDP can operate in one of the following modes: z TxRx: A port in this mode sends and receives LLDPDUs. z Tx: A port in this mode only sends LLDPDUs. z Rx: A port in this mode only receives LLDPDUs.
Item Description Set the interval for sending LLDPDUs. Transmit Interval A port operating in TxRx mode or Tx mode sends LLDPDUs to its directly connected device periodically. By default, the interval is 30 seconds. Set the TTL multiplier. TLL Hold Multiplier You can configure the TTL of locally sent LLDPDUs to determine how long they can be saved on a neighbor device by setting the TTL hold multiplier.
The Port-Level LLDP Parameters Page contains the following fields: Table 3-55 Port-Level LLDP Parameters Page item description Item Description Enable/disable LLDP on a port. Two options are available: LLDP z z Enabled: Enables LLDP on the port. Disabled: Disables LLDP on the port. By default, LLDP is enabled on a port. Set the LLDP operating mode. z z Administrator Status z z Port Basic Settings Send Only: Sets the port LLDP to operate in Tx mode to send LLDPDUs only.
Item Description The IEEE 802.3 defined LLDP TLVs supported by the device include the following: z z z IEEE 802.3 z MAC/PHY: The rate, duplex mode, and speed auto-negotiation state of the port. POE Power: Power supply capability of the port. Link Aggregation: Indicates the support of the port for link aggregation, and the aggregation status (whether the link is in an aggregation). Maximum Frame Size: Supported maximum frame size. Currently, it takes the MTU of the port.
Table 3-56 Global LLDP Information and Received LLDP Information Page item description Item Description Added Neighbor Total number of discovered neighbors Deleted Neighbor Total number of deleted neighbors Discarded LLDP's Packet Total number of dropped LLDPDUs Aginged Neighbor Total number of aged LLDP neighbor entries Neighbor index Index of each discovered neighbor Local Port Local port name of each neighbor Chassis ID type, including: z z Chassis type z z z z z Chassis ID Chassis compo
Figure 3-72 Port-Level LLDP Information Page Select a port, and then the LLDP information of the port will be displayed in the Summary box. The displayed information includes LLDP status and statistics of the port and the status of the TLVs sent by the port. Managing Switch Security The Management Security section provides information for defining RADIUS authentication and port-based authentication. This section includes the following topics: z Defining Port-Based Authentication (802.
Defining 802.1X Authentication The 802.1X Setup Page contains information for configuring 802.1X global settings on the switch and defining specific 802.1X setting for each port individually. Click Security > 802.1X > Setup. The 802.1X Setup Page opens. Figure 3-73 802.1X Setup Page The 802.1X Setup Page contains the following fields: Table 3-57 802.1X Setup Page item description Item Port Based Authentication State Description Specifies if Port Authentication is enabled on the switch.
Item Description Specifies whether the Guest VLAN is enabled on the port. The possible field values are: Guest VLAN z z Enabled: Enables using a Guest VLAN for unauthorized ports. If a Guest VLAN is enabled, the unauthorized port automatically joins the VLAN selected from the Guest VLAN ID dropdown list. Disabled: Disables Guest VLAN on the port. This is the default. Enables periodic reauthentication on the port.
Item Reauthentication Period Description Displays the time span (in seconds) in which the selected port is reauthenticated. The field default is 3600 seconds. Defining Radius Client Remote Authentication Dial-in User Service (Radius) is a logon authentication protocol that uses software running on a central server to control access to Radius-aware devices on the network.
Configuring LDB If your switch is not enabled with an advanced authentication method, like RADIUS, for authentication, you can use the local database (LDB) feature to perform local authentication (port-based authentication).After the switch is enabled with the LDB feature and related access rights are configured, a user trying to access an address through the switch will be authenticated. After successful authentication, the switch allows the user to use the corresponding port.
Item Description Set the authentication sleep period. 5 minutes by default Sleep Period Note: Within the authentication sleep period, no users on this port are allowed to try to pass authentication. Set the aging time. 1 hour by default Aging time Ldb Note: If there is no traffic of authenticated users through a port within the aging time, the port will be aged out and enters the Block state. Enable/disable the LDB feature on a port.
Figure 3-79 Configure a user account z To add a user account, click Add. z To modify the password of a user, select the user, enter a new password in the Password text box, and click Modify. Displaying LDB On this page, you can view the LDB mode, state and user passing authentication on each port. Select Security > LDB > Summary. The LDB Related Information Page Opens.
Item Description Current Port State Displays the current state of the port. NORMAL: The user on the port passed the authentication. z BLOCK: The port is in the initial state after the LDB feature is enabled or the port is aged out. z SLEEP: The number of the user’s authentication attempts exceeded the preset maximum value. User Displays the user passing the authentication. MAC Displays the MAC address of the user passing the authentication.
Table 3-62 Broadcast Storm Setup Page item description Item Description Defines whether forwarding broadcast packet type is enabled on the interface. The possible field values are: z Broadcast Mode z z Broadcast Rate Threshold Disabled: Disables broadcast control on the selected port. This is the default. Broadcast: Enables broadcast control on the selected port. Broadcast&Multicast: Enables broadcast and multicast control on the selected port.
z Configuring System Time z Save Configuration z Resetting the Switch Viewing Basic Settings The Device Summary Page, which automatically loads after you log on to the Web interface, provides a snapshot of the switch’s basic settings and versions of current components.
Item Description Enables polling the ports for port information including speed, utilization and port status. Poll Now Viewing Color Keys The Color Key Page provides information regarding the RJ45 or SFP port status on the switch. The various colors key indicate the port status, speed and link of a selected port. Click Device Summary > Color Key. The Color Key Page opens.
Figure 3-85 System Name Page The System Name Page includes the following fields: Table 3-66 System Name Page item description Item Description System Name Defines the user-defined switch name. The field length is 0-30 characters System Location Defines the location where the system is currently running. The field length is 0-80 characters. System Contact Defines the name of the contact person. The field length is 0-80 characters.
Figure 3-86 System Time Setup Page The System Time Setup Page contains the following fields: Table 3-67 System Time Setup Page item description Item Description Current Time Displays the current time in Mon-Day-Year Hour:Min:Sec. Time zone Local Time zone from GMT in which switch is operating. Configure Daylight Saving Time Manually When day light saving is enabled, one hour will be added to time zone offset value. Radio option for user to set switch on using NTP/SNTP Time.
Click Save Configuration. The Save Configuration Page opens. Figure 3-87 Save Configuration Page Click OK. The configuration is saved. Resetting the Switch The Reset Page restores the switch factory defaults. To prevent the current configuration from being lost, use the Save Configuration Page to save all user-defined changes to the flash memory before resetting the switch. Click Administration > Reset. The Reset Page opens.
z Running Configuration File: Contains all configuration file commands, as well as all commands entered during the current session. After the switch is powered down or rebooted, all commands stored in the Running Configuration file are lost. z Image files: Software upgrades are used when a new version file is downloaded. The file is checked for the right format, and that it is complete. After a successful download, the new version is marked, and is used after the switch is reset.
Figure 3-90 Restore Files Page The Restore Files Page contains the following fields: Table 3-69 Restore Files Page item description Item Description Download via TFTP Enables to download files via TFTP. Download via HTTP Enables to download files via HTTP. TFTP Server IP Address Specifies the TFTP Server IP Address from which the configuration files are downloaded.
Item Description TFTP Server IP Address Specifies the TFTP Server IP Address from which the image files are downloaded. Source File Name Specifies file name for the downloaded image file. Click Browse to locate the image file on your computer. Activating Image Files The Active Image Page allows network managers to select and reset the Image files. Click Administration > Firmware Upgrade > Active Image. The Active Image Page opens.
Table 3-72 System Log Severity Levels Severity Level Message Emergency Highest (0) The system is not functioning. Alert 1 The system needs immediate attention. Critical 2 The system is in a critical state. Error 3 A system error has occurred. Warning 4 A system warning has occurred. Notice 5 The system is functioning properly, but a system notice has occurred. Informational 6 Provides device information. Debug 7 Provides detailed information about the log.
Table 3-73 Logging Setup Page item description Item Description Specifies if device local logs for Cache and servers are enabled. Console logs are enabled by default. Severity level: Specifies the minimum severity level for which a message will be logged. When a severity level is selected, all severity level choices above the selection are selected automatically. The possible field values are: z z Enable Logging z z z z z z Emergency: The highest warning level.
Table 3-74 Logging Display Page item description Item Description Save Preview Saves the displayed Log table to a Web (html) page. Clear Logs Clears all logs Log Time Displays the time at which the log was generated. Severity Displays the log severity. Description Displays the log message text.
Table 3-75 Port Mirroring Setup Page item description Item Description Defines the monitor port (destination port) or mirror port (source port). The possible values are: z Select port type z Monitor: Defines the port as the monitor port. Mirror: Defines the port as the mirrored port to be monitored and indicates the traffic direction to be monitored. If selected, the possible values are: Mirror In (Enables port mirroring on the port RX), Mirror Out (Enables port mirroring on the port TX).
Figure 3-97 Cable Diagnostic Page 2) Select a port to be tested. 3) Click Apply. The test results of the port are displayed in the textbox. Viewing Cable Diagnostics The Cable Diagnostics Summary Page displays information on Test Result, Cable Fault Distance, or Last Update for every port on the switch. Click Monitoring > Cable Diagnostics > Summary. The Cable Diagnostics Summary Page opens.
4 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. 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.
Configure a new user You can use localuser command to configure a new user through the Console Port (see CLI Reference Guide). Forgotten Static IP Address If you forget the static IP address that you assigned to the switch, you can use display ip command through the Console Port (see CLI Reference Guide). Solving LED Issues This section lists some issues that are related to the LEDs on the front panel of the switch.
All ports appear to show continual activity. There may be broadcast storms on the network. Remove port connections one at a time, waiting a few seconds between each port. If the LEDs go off after removing a port connection, the device that was connected to that port is introducing an excessive amount of broadcast frames to the network. Some pieces of network equipment operate by sending out broadcast frames regularly.
5 CLI Reference Guide This chapter describes using the Command Line Interface (CLI) to manage the switch. The switch is managed through the CLI from a direct connection to the switch console port. Getting Started with the Command Line Interface Using the CLI, network managers enter configuration commands and parameters to configure the switch. Prerequisites z A workstation with terminal emulation software installed, such as Microsoft HyperTerminal.
CLI Features Online Help CLI provides two types of online help: complete online help and partial online help. They assist you with your configuration. Complete online help Enter a "?" character in any view on your terminal to display all the commands available in the view and their brief descriptions. The following takes user view as an example.
the keywords that match the input characters will be displayed on the terminal screen if the input characters match more than one keyword. Command History CLI can store the latest executed commands as history commands so that users can recall and execute them again. By default, CLI can store 10 history commands for each user. Table 5-1 lists history command-related operations.
Error message found at '^' position. Description An error is found at '^' position. Command Edit The CLI provides basic command edit functions and supports multi-line editing. The maximum number of characters a command can contain is 254. Table 5-3 lists the CLI edit operations. Table 5-3 Edit operations Press… To… A common key If the command does not reach 254 characters, insert the character at the current cursor position and move the cursor one character to the right.
Example # Display the IP address information about the switch. display ip Vlan-interface1 current state: UP Line protocol current state : UP Hardware address is 0800-1234-5656 Internet address is 192.168.0.
display version Syntax display version View User view Parameter None Description Use the display version command to display the system information (such as the version information) about the switch. Example # Display the system information about the switch. display version ip address Syntax ip address ip-address net-mask undo ip address View User view Parameter ip-address: IP address to be assigned to the switch.
undo ip address dhcp-alloc View User view Parameter None Description Use the ip address dhcp-alloc command to configure the switch to obtain an IP address through DHCP. Use the undo ip address dhcp-alloc command to cancel the configuration. Example # Configure the switch to obtain an IP address through DHCP. ip address dhcp-alloc ip gateway Syntax ip gateway gateway-address undo ip gateway View User view Parameter gateway-address: gateway address to be assigned to the switch.
Parameter name: Web user name, which ranges from 1 to 8. password: Web user password, which ranges from 1 to 8. level: Web user level, which ranges from 0 to 1.0 is guest, 1 is admin. Description Use the localuser command to configure a Web user for the switch. Use the undo localuser command to remove the Web user. Example # Configure a Web admin user for the switch.
View User view Parameter interface-number: Ethernet port number Description Use the management-vlan port command to add Ethernet ports of the switch to the management VLAN. By default, all Ethernet ports of a switch belong to management VLAN 1. Example # Configure VLAN 10 as the management VLAN, and add Ethernet 0/1 through Ethernet 0/5 of the switch to the management VLAN.
Example # Check the reachability of the host with IP address 192.168.0.100. ping 192.168.0.100 PING 192.168.0.100: 56 data bytes, press CTRL_C to break Reply from 192.168.0.100 : bytes=56 sequence=1 ttl=255 time = 1ms Reply from 192.168.0.100 : bytes=56 sequence=2 ttl=255 time = 2ms Reply from 192.168.0.100 : bytes=56 sequence=3 ttl=255 time = 1ms Reply from 192.168.0.100 : bytes=56 sequence=4 ttl=255 time = 3ms Reply from 192.168.0.100 : bytes=56 sequence=5 ttl=255 time = 2ms --- 192.168.
Parameter None Description Use the reboot command to restart the switch. Example # Restart the switch. reboot This will reboot device. Continue? [Y/N] restore Syntax restore default View User view Parameter None Description Use the restore command to reset the switch to factory defaults. Example # Reset the switch to factory defaults.
Example # Save current configuration of the switch. save This will save the configuration in the FLASH memory Are you sure?[Y/N]y Now saving current configuration to FLASH memory Please wait for a while... Current configuration saved to FLASH memory successfully tftp update Syntax tftp update ip-address filename View User view Parameter ip-address: IP address of the TFTP server filename: Name of the upgrade file Description Use the tftp update command to upgrade the switch software.
6 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.
z Product model name, part number, and serial number. z Proof of purchase, if you have not pre-registered your product. z A list of system hardware and software, including revision level. z Diagnostic error messages. z Details about recent configuration changes, if applicable. To send a product directly to 3Com for repair, you must first obtain a return authorization number (RMA).
7 Safety Information Important Safety Information Please refer to the safety information found in the 3Com Switch Family Safety and Regulatory Information manual included with this product. You can find the 3Com Switch Family Safety and Regulatory Information manual that was included with your switch. You can also download the safety manual from the 3Com Web site: www.3Com.com.
8 Regulatory Notices FCC Statement This equipment has been tested and found to comply with the limits for a Class 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.
VCCI Statement 8-2
9 Glossary Table 9-1 Glossary Item Description 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. 1000BASE-SX IEEE 802.3z specification for Gigabit Ethernet over two strands of 50/125 or 62.5/125 micron core multimode fiber cable.
Item Description Category 6 Cables One of five grades of Twisted Pair (TP) cabling defined by the EIA/TIA-568-B standard. Category 6 can be used in Ethernet (10BASE-T), Fast Ethernet (100BASE-TX) and Gigabit Ethernet (1000BASE-T) networks, and can transmit data at speeds of up to 1000 Mbps. Client The term used to describe the desktop PC that is connected to your network. DHCP Dynamic Host Configuration Protocol.
Item Description LAN Local Area Network. A network of end stations (such as PCs, printers, servers) and network devices (hubs and 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 meters). Layer 2 Data Link layer in the ISO 7-Layer Data Communications Protocol.
Item Description 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. 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.
