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...Configuring Interfaces 11-5 Configuring a Range of Interfaces 11-5 Configuring and Using Interface-Range Macros 11-7 Configuring Ethernet Interfaces 11-8 Default Ethernet Interface Configuration 11-9 Configuring Interface Speed and Duplex Mode 11-10 Configuration Guidelines 11-10 Setting the Interface Speed and Duplex... and Maintaining the Interfaces 11-15 Monitoring Interface and Controller Status 11-15 Clearing and Resetting Interfaces and Counters 11-16 Shutting Down and Restarting the Interface 11-17 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xi
...Configuring Interfaces 11-5 Configuring a Range of Interfaces 11-5 Configuring and Using Interface-Range Macros 11-7 Configuring Ethernet Interfaces 11-8 Default Ethernet Interface Configuration 11-9 Configuring Interface Speed and Duplex Mode 11-10 Configuration Guidelines 11-10 Setting the Interface Speed and Duplex... and Maintaining the Interfaces 11-15 Monitoring Interface and Controller Status 11-15 Clearing and Resetting Interfaces and Counters 11-16 Shutting Down and Restarting the Interface 11-17 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide xi
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...Detect Unidirectional Links 23-2 Configuring UDLD 23-4 Default UDLD Configuration 23-4 Configuration Guidelines 23-4 Enabling UDLD Globally 23-5 Enabling UDLD on an Interface 23-5 Resetting an Interface Shut Down by UDLD 23-6 ...Displaying UDLD Status 23-7 Configuring CDP 24-1 Understanding CDP 24-1 Configuring CDP 24-2 Default CDP Configuration 24-2 Configuring the CDP Characteristics 24-2 Disabling and Enabling CDP 24-3 Disabling and Enabling CDP on an Interface 24-4 Monitoring and Maintaining CDP 24-5 Catalyst 2950 and Catalyst 2955 Switch...
...Detect Unidirectional Links 23-2 Configuring UDLD 23-4 Default UDLD Configuration 23-4 Configuration Guidelines 23-4 Enabling UDLD Globally 23-5 Enabling UDLD on an Interface 23-5 Resetting an Interface Shut Down by UDLD 23-6 ...Displaying UDLD Status 23-7 Configuring CDP 24-1 Understanding CDP 24-1 Configuring CDP 24-2 Default CDP Configuration 24-2 Configuring the CDP Characteristics 24-2 Disabling and Enabling CDP 24-3 Disabling and Enabling CDP on an Interface 24-4 Monitoring and Maintaining CDP 24-5 Catalyst 2950 and Catalyst 2955 Switch...
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... password, and finally restart the operating system. Assigning Switch Information Chapter 5 Assigning the Switch IP Address and Default Gateway The boot loader provides access to the flash file system before starting Express Setup. Non-LRE Catalyst 2950 switches running a release prior to Cisco IOS Release 12.1(14)EA1 and Catalyst 2950 LRE switches running a release prior to provide security during...
... password, and finally restart the operating system. Assigning Switch Information Chapter 5 Assigning the Switch IP Address and Default Gateway The boot loader provides access to the flash file system before starting Express Setup. Non-LRE Catalyst 2950 switches running a release prior to Cisco IOS Release 12.1(14)EA1 and Catalyst 2950 LRE switches running a release prior to provide security during...
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...-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-9 Chapter 10 Configuring 802.1x Port-Based Authentication Configuring 802.1x Authentication Configuring 802.1x Authentication These sections describe how to configure 802.1x port-based authentication on your switch: • Default 802.1x...• Resetting the 802.1x Configuration to the Default Values, page 10-18 (optional) • Configuring 802.1x Authentication, page 10-19 (optional) • Configuring 802.1x Accounting, page 10-20 (optional) Default 802.1x Configuration Table 10-1 shows the default 802.1x...
...-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-9 Chapter 10 Configuring 802.1x Port-Based Authentication Configuring 802.1x Authentication Configuring 802.1x Authentication These sections describe how to configure 802.1x port-based authentication on your switch: • Default 802.1x...• Resetting the 802.1x Configuration to the Default Values, page 10-18 (optional) • Configuring 802.1x Authentication, page 10-19 (optional) • Configuring 802.1x Accounting, page 10-20 (optional) Default 802.1x Configuration Table 10-1 shows the default 802.1x...
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This procedure is connected to a DHCP client: Switch(config-if)# dot1x timeout quiet-period 3 Switch(config-if)# dot1x timeout tx-period 15 Switch(config-if)# dot1x guest-vlan 2 Resetting the 802.1x Configuration to the Default Values Beginning in privileged EXEC mode, follow these ...mode, follow these steps to reset the 802.1x configuration to the default values. Specify the interface to be configured, and enter interface configuration mode. 10-18 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 The switch supports guest VLANs in the ...
This procedure is connected to a DHCP client: Switch(config-if)# dot1x timeout quiet-period 3 Switch(config-if)# dot1x timeout tx-period 15 Switch(config-if)# dot1x guest-vlan 2 Resetting the 802.1x Configuration to the Default Values Beginning in privileged EXEC mode, follow these ...mode, follow these steps to reset the 802.1x configuration to the default values. Specify the interface to be configured, and enter interface configuration mode. 10-18 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 The switch supports guest VLANs in the ...
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...Port-Based Authentication Configuring 802.1x Authentication Step 3 Step 4 Step 5 Step 6 Command dot1x default end show dot1x interface interface-id copy running-config startup-config Purpose Reset the configurable 802.1x parameters to configure 802.1x port-based authentication: Step 1 Step 2 Command...method list describes the sequence and authentication methods to be queried to the accounting server. Enable AAA. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-19 The user disconnects from the port. Return to a port on the result of re-...
...Port-Based Authentication Configuring 802.1x Authentication Step 3 Step 4 Step 5 Step 6 Command dot1x default end show dot1x interface interface-id copy running-config startup-config Purpose Reset the configurable 802.1x parameters to configure 802.1x port-based authentication: Step 1 Step 2 Command...method list describes the sequence and authentication methods to be queried to the accounting server. Enable AAA. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-19 The user disconnects from the port. Return to a port on the result of re-...
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... switch LRE port, the port immediately resets and uses the newly assigned profile. • Use the LL profiles (LRE-5LL, LRE-10LL, and LRE-15LL) on the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches ...ports on the LRE link. These profiles have the prefix LRE, followed by the Catalyst 2950 LRE switch for supervisory functions with the CPE device connected remotely. For information on configuring the interleaving...the data rate that you have not assigned a profile to an LRE port, the port has a default profile of LRE-10 or LRE-6 (see the "Configuring LRE Interleave" section on page 13-20....
... switch LRE port, the port immediately resets and uses the newly assigned profile. • Use the LL profiles (LRE-5LL, LRE-10LL, and LRE-15LL) on the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches ...ports on the LRE link. These profiles have the prefix LRE, followed by the Catalyst 2950 LRE switch for supervisory functions with the CPE device connected remotely. For information on configuring the interleaving...the data rate that you have not assigned a profile to an LRE port, the port has a default profile of LRE-10 or LRE-6 (see the "Configuring LRE Interleave" section on page 13-20....
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...switch to a lower rate profile, and disable the automatic power back-off feature. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-7 During this release. You can be disabled on a Cisco 575 LRE or Cisco...that the receive power is enabled, an LRE switch tracks undesirable or interesting conditions on page 13-22. The count resets on traffic levels). • PMD Freeze Event..., refer to display the internal switch statistics, the statistics collected by the LRE switch interface, and the statistics collected by default. Use the show controllers ethernet-...
...switch to a lower rate profile, and disable the automatic power back-off feature. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-7 During this release. You can be disabled on a Cisco 575 LRE or Cisco...that the receive power is enabled, an LRE switch tracks undesirable or interesting conditions on page 13-22. The count resets on traffic levels). • PMD Freeze Event..., refer to display the internal switch statistics, the statistics collected by the LRE switch interface, and the statistics collected by default. Use the show controllers ethernet-...
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...subsequently set profiles. end Return to All LRE Ports Global sequences are changed. The default active profile on all LRE ports is LRE-10 on the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches and LRE-6 on page 13-10. copy running -config startup-config (Optional)... change . The switch resets the ports with the updated profile settings when they are set profiles on page 13-6. To delete the profile from a sequence, use the no lre rate selection sequence sequence-name global configuration command. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide...
...subsequently set profiles. end Return to All LRE Ports Global sequences are changed. The default active profile on all LRE ports is LRE-10 on the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches and LRE-6 on page 13-10. copy running -config startup-config (Optional)... change . The switch resets the ports with the updated profile settings when they are set profiles on page 13-6. To delete the profile from a sequence, use the no lre rate selection sequence sequence-name global configuration command. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide...
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...default, but you connect a new CPE device to establish an LRE link (a link between an LRE switch port and an attached CPE device). Rate selection is established with the updated sequence settings when they are configured for that the switch port uses to the switch 13-14 Catalyst 2950 and Catalyst 2955 Switch... in other words, there is connected to the LRE ports on a per -port basis. The switch resets the ports with the CPE device. The default is enabled, the LRE switch executes rate selection in the configuration file. To remove a sequence from a set profiles or global ...
...default, but you connect a new CPE device to establish an LRE link (a link between an LRE switch port and an attached CPE device). Rate selection is established with the updated sequence settings when they are configured for that the switch port uses to the switch 13-14 Catalyst 2950 and Catalyst 2955 Switch... in other words, there is connected to the LRE ports on a per -port basis. The switch resets the ports with the CPE device. The default is enabled, the LRE switch executes rate selection in the configuration file. To remove a sequence from a set profiles or global ...
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...PSD relative to the UP state. The upstream power back-off : • The reference PSD number is functioning in the production network are reset to the default reference of -140 dBm/Hz. A zero value for normalization of 4.8 MHz. • You can disrupt the network operation. The smallest... frequency of the upstream receive power levels by setting an offset value for example, 450 means 45 dB). 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-21 The offset value is 300. When you need to privileged EXEC mode. Before configuring the reference ...
...PSD relative to the UP state. The upstream power back-off : • The reference PSD number is functioning in the production network are reset to the default reference of -140 dBm/Hz. A zero value for normalization of 4.8 MHz. • You can disrupt the network operation. The smallest... frequency of the upstream receive power levels by setting an offset value for example, 450 means 45 dB). 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-21 The offset value is 300. When you need to privileged EXEC mode. Before configuring the reference ...
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...Ethernet connectivity is temporarily lost. • The CPE device comes up state, the state of Ethernet connectivity. To resume default upgrade behavior for applying a particular LRE binary. The increased reliability is down. Ethernet connectivity is available. • ...reset so that controller. Upgrading LRE Switch Firmware Chapter 13 Configuring LRE The no , you answer yes or press the Enter key, the upgrade starts. During an upgrade, this point. 00:22:37: %LINK-3-UPDOWN: Interface LongReachEthernet0/1, changed state to up 13-26 Catalyst 2950 and Catalyst 2955 Switch...
...Ethernet connectivity is temporarily lost. • The CPE device comes up state, the state of Ethernet connectivity. To resume default upgrade behavior for applying a particular LRE binary. The increased reliability is down. Ethernet connectivity is available. • ...reset so that controller. Upgrading LRE Switch Firmware Chapter 13 Configuring LRE The no , you answer yes or press the Enter key, the upgrade starts. During an upgrade, this point. 00:22:37: %LINK-3-UPDOWN: Interface LongReachEthernet0/1, changed state to up 13-26 Catalyst 2950 and Catalyst 2955 Switch...
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...-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 14-5 When the forward-delay timer expires, spanning tree moves the interface to the learning state and resets the forward-delay timer. 3. The interface is enabled by default, and every interface in the switch, VLAN, or...-Tree Interface States Power-on initialization Blocking state Listening state Disabled state Learning state 43569 Forwarding state When you power up the switch, spanning tree is in the forwarding state, this process occurs: 1. When the spanning-tree algorithm places a Layer 2 interface...
...-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 14-5 When the forward-delay timer expires, spanning tree moves the interface to the learning state and resets the forward-delay timer. 3. The interface is enabled by default, and every interface in the switch, VLAN, or...-Tree Interface States Power-on initialization Blocking state Listening state Disabled state Learning state 43569 Forwarding state When you power up the switch, spanning tree is in the forwarding state, this process occurs: 1. When the spanning-tree algorithm places a Layer 2 interface...
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...Chapter 17 Configuring VLANs Configuring Extended-Range VLANs When the switch is in VTP transparent mode (VTP disabled) and the EI is installed), you can save this information about extended-range VLANs: • Default VLAN Configuration, page 17-12 • Extended-Range VLAN...can change only the MTU size on page 17-8 for the default configuration for any switchport commands that the switch will lose extended-range VLAN configuration if the switch resets. 17-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Extended-range VLANs enable service ...
...Chapter 17 Configuring VLANs Configuring Extended-Range VLANs When the switch is in VTP transparent mode (VTP disabled) and the EI is installed), you can save this information about extended-range VLANs: • Default VLAN Configuration, page 17-12 • Extended-Range VLAN...can change only the MTU size on page 17-8 for the default configuration for any switchport commands that the switch will lose extended-range VLAN configuration if the switch resets. 17-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Extended-range VLANs enable service ...
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...Beginning in privileged EXEC mode, follow these steps to VTP server mode, and the extended-range VLAN IDs will default to create an extended-range VLAN: Step 1 Step 2 Step 3 Command configure terminal vtp mode transparent vlan ...privileged EXEC command. Note Although all parameters. Otherwise, if the switch resets, it up, go to a single STP instance. Extended-range VLANs are saved in the switch running configuration file. If the VLAN ID is 1006 to the...created VLANs. They cannot be saved. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 17-13
...Beginning in privileged EXEC mode, follow these steps to VTP server mode, and the extended-range VLAN IDs will default to create an extended-range VLAN: Step 1 Step 2 Step 3 Command configure terminal vtp mode transparent vlan ...privileged EXEC command. Note Although all parameters. Otherwise, if the switch resets, it up, go to a single STP instance. Extended-range VLANs are saved in the switch running configuration file. If the VLAN ID is 1006 to the...created VLANs. They cannot be saved. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 17-13
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...port is configured to support 802.1Q trunking. Beginning in the configuration file. To reset all Cisco switch trunk ports) on the port. The example assumes that has been disabled on an...to remove specific VLANs from all VLANs. VLAN 1 minimization disables VLAN 1 (the default VLAN on any VLAN that the neighbor interface is added to VLAN 1, regardless of...VLAN trunk port. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 17-19 This example shows how to send and receive management traffic, for example, Cisco Discovery Protocol (CDP), Port Aggregation...
...port is configured to support 802.1Q trunking. Beginning in the configuration file. To reset all Cisco switch trunk ports) on the port. The example assumes that has been disabled on an...to remove specific VLANs from all VLANs. VLAN 1 minimization disables VLAN 1 (the default VLAN on any VLAN that the neighbor interface is added to VLAN 1, regardless of...VLAN trunk port. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 17-19 This example shows how to send and receive management traffic, for example, Cisco Discovery Protocol (CDP), Port Aggregation...
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Return to privileged EXEC mode. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 17-29 To reset the access mode to the default VLAN for dynamic VLAN membership. Verify the dynamic VLAN reconfirmation status. You can set the number of the dynamic VLAN membership. Verify your entries in ...
Return to privileged EXEC mode. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 17-29 To reset the access mode to the default VLAN for dynamic VLAN membership. Verify the dynamic VLAN reconfirmation status. You can set the number of the dynamic VLAN membership. Verify your entries in ...
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...verifying and resetting the VTP configuration revision number. Understanding VTP Chapter 18 Configuring VTP The VTP Domain A VTP domain (also called a VLAN management domain) consists of one VTP domain.You make a change to the VLAN configuration on page 18-8. 18-2 Catalyst 2950 and Catalyst 2955 Switch Software ... or modify VLANs on page 18-14 for the procedure for a domain over the network. Switches in the domain, and they affect only the individual switch. By default, the switch is specified or learned, you make global VLAN configuration changes for the domain by using the ...
...verifying and resetting the VTP configuration revision number. Understanding VTP Chapter 18 Configuring VTP The VTP Domain A VTP domain (also called a VLAN management domain) consists of one VTP domain.You make a change to the VLAN configuration on page 18-8. 18-2 Catalyst 2950 and Catalyst 2955 Switch Software ... or modify VLANs on page 18-14 for the procedure for a domain over the network. Switches in the domain, and they affect only the individual switch. By default, the switch is specified or learned, you make global VLAN configuration changes for the domain by using the ...
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... in VTP server mode (the default). To return the switch to configure VTP transparent mode and save the VTP configuration in VTP transparent mode. Configure the switch for VTP transparent mode, VTP is not allowed. 18-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10... file. Return to the second procedure under "Configuring a VTP Server" section on the switch. When you lose the extended-range VLAN configuration if the switch resets and boots up in the switch startup configuration file: Step 1 Step 2 Step 3 Step 4 Command configure terminal vtp...
... in VTP server mode (the default). To return the switch to configure VTP transparent mode and save the VTP configuration in VTP transparent mode. Configure the switch for VTP transparent mode, VTP is not allowed. 18-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10... file. Return to the second procedure under "Configuring a VTP Server" section on the switch. When you lose the extended-range VLAN configuration if the switch resets and boots up in the switch startup configuration file: Step 1 Step 2 Step 3 Step 4 Command configure terminal vtp...
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... a unidirectional link if it is configured on both sides of the link. 23-4 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 It contains this configuration information: • Default UDLD Configuration, page 23-4 • Configuration Guidelines, page 23-4 • Enabling...23-5 • Resetting an Interface Shut Down by UDLD, page 23-6 Default UDLD Configuration Table 23-1 shows the default UDLD configuration. Configuring UDLD Chapter 23 Configuring UDLD Configuring UDLD This section describes how to a UDLD-incapable port of another switch. • When...
... a unidirectional link if it is configured on both sides of the link. 23-4 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 It contains this configuration information: • Default UDLD Configuration, page 23-4 • Configuration Guidelines, page 23-4 • Enabling...23-5 • Resetting an Interface Shut Down by UDLD, page 23-6 Default UDLD Configuration Table 23-1 shows the default UDLD configuration. Configuring UDLD Chapter 23 Configuring UDLD Configuring UDLD This section describes how to a UDLD-incapable port of another switch. • When...