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... 10-15 Changing the Quiet Period 10-15 Changing the Switch-to-Client Retransmission Time 10-15 Setting the Switch-to-Client Frame-Retransmission Number 10-16 Configuring the Host Mode 10-17 Configuring a Guest VLAN 10-18 Resetting the 802.1x Configuration to the Default Values 10-18... for an Interface 11-14 Monitoring 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
... 10-15 Changing the Quiet Period 10-15 Changing the Switch-to-Client Retransmission Time 10-15 Setting the Switch-to-Client Frame-Retransmission Number 10-16 Configuring the Host Mode 10-17 Configuring a Guest VLAN 10-18 Resetting the 802.1x Configuration to the Default Values 10-18... for an Interface 11-14 Monitoring 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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...-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 Software...
...-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 Software...
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...switch configuration steps, manually configure the switch. Assigning Switch Information Chapter 5 Assigning the Switch IP Address and Default Gateway The boot loader provides access to Cisco IOS Release 12.1(19)EA1 do not support Express Setup. Non-LRE Catalyst 2950 switches running a release prior to Cisco IOS Release 12.1(14)EA1 and Catalyst 2950 LRE switches...Protocol (SNMP). Note If you want to the switch before the operating system is not active until the next system reset or power-on page 32-8. Note The Catalyst 2955 switches do not support Express Setup. Normally, the boot...
...switch configuration steps, manually configure the switch. Assigning Switch Information Chapter 5 Assigning the Switch IP Address and Default Gateway The boot loader provides access to Cisco IOS Release 12.1(19)EA1 do not support Express Setup. Non-LRE Catalyst 2950 switches running a release prior to Cisco IOS Release 12.1(14)EA1 and Catalyst 2950 LRE switches...Protocol (SNMP). Note If you want to the switch before the operating system is not active until the next system reset or power-on page 32-8. Note The Catalyst 2955 switches do not support Express Setup. Normally, the boot...
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... of addresses: • Dynamic address: a source MAC address that the switch learns and then ages when it is not lost when the switch resets. Return to 255 characters. Verify your entries. (Optional) Save your choice, for this release. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 8-21 To delete the login banner, use...
... of addresses: • Dynamic address: a source MAC address that the switch learns and then ages when it is not lost when the switch resets. Return to 255 characters. Verify your entries. (Optional) Save your choice, for this release. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 8-21 To delete the login banner, use...
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...Default Setting Disabled. • None specified. • 1812. • None specified. Disabled. 3600 seconds. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-9 Disabled (force-authorized). Table 10-1 Default 802.1x Configuration Feature AAA RADIUS server • IP address...-15 (optional) • Setting the Switch-to-Client Frame-Retransmission Number, page 10-16 (optional) • Configuring the Host Mode, page 10-17 (optional) • Configuring a Guest VLAN, page 10-18 (optional) • Resetting the 802.1x Configuration to the Default ...
...Default Setting Disabled. • None specified. • 1812. • None specified. Disabled. 3600 seconds. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-9 Disabled (force-authorized). Table 10-1 Default 802.1x Configuration Feature AAA RADIUS server • IP address...-15 (optional) • Setting the Switch-to-Client Frame-Retransmission Number, page 10-16 (optional) • Configuring the Host Mode, page 10-17 (optional) • Configuring a Guest VLAN, page 10-18 (optional) • Resetting the 802.1x Configuration to the Default ...
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...VLAN when an 802.1x port 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 ...no dot1x guest-vlan interface configuration command. 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 Specify the interface to be configured, and enter interface configuration mode. Step 1 Step ...
...VLAN when an 802.1x port 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 ...no dot1x guest-vlan interface configuration command. 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 Specify the interface to be configured, and enter interface configuration mode. Step 1 Step ...
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... Step 6 Step 7 Step 8 A user connects to configure the switch for all defined methods are attempted. The user disconnects from the port. Enable AAA. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-19 Chapter 10 Configuring 802.1x 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...
... Step 6 Step 7 Step 8 A user connects to configure the switch for all defined methods are attempted. The user disconnects from the port. Enable AAA. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 10-19 Chapter 10 Configuring 802.1x 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...
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... to Marketing Switch(config-if)# end Switch# show interfaces fastethernet0/4 description Interface Status Protocol Description Fa0/4 up down Connects to monitor and maintain interfaces: • Monitoring Interface and Controller Status, page 11-15 • Clearing and Resetting Interfaces and ...interface status. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 11-15 command at the privileged EXEC prompt display information about the interface, including the version of interfaces in the Cisco IOS Interface Command Reference for Interfaces...
... to Marketing Switch(config-if)# end Switch# show interfaces fastethernet0/4 description Interface Status Protocol Description Fa0/4 up down Connects to monitor and maintain interfaces: • Monitoring Interface and Controller Status, page 11-15 • Clearing and Resetting Interfaces and ...interface status. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 11-15 command at the privileged EXEC prompt display information about the interface, including the version of interfaces in the Cisco IOS Interface Command Reference for Interfaces...
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... "show interfaces interfaces-id privileged EXEC command on interfaces or serial lines. 11-16 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Reset the hardware logic on an interface. Reset the hardware logic on an asynchronous serial line. The output also shows that you do... not need to clear the hardware logic on a LRE switch interface, the command output shows the statistics for the interface. This example shows how to the Cisco IOS ...
... "show interfaces interfaces-id privileged EXEC command on interfaces or serial lines. 11-16 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Reset the hardware logic on an interface. Reset the hardware logic on an asynchronous serial line. The output also shows that you do... not need to clear the hardware logic on a LRE switch interface, the command output shows the statistics for the interface. This example shows how to the Cisco IOS ...
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... state to a administratively down an interface. This example shows how to shut down a port: Switch# configure terminal Switch(config)# interface fastethernet0/5 Switch(config-if)# shutdown Switch(config-if)# *Sep 30 08:33:47: %LINK-5-CHANGED: Interface FastEthernet0/5, changed state to ...Interfaces This example shows how to clear and reset a port: Switch# clear interface fastethernet0/5 Shutting Down and Restarting the Interface Shutting down in the show interfaces command output. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 11-17 interface {vlan vlan...
... state to a administratively down an interface. This example shows how to shut down a port: Switch# configure terminal Switch(config)# interface fastethernet0/5 Switch(config-if)# shutdown Switch(config-if)# *Sep 30 08:33:47: %LINK-5-CHANGED: Interface FastEthernet0/5, changed state to ...Interfaces This example shows how to clear and reset a port: Switch# clear interface fastethernet0/5 Shutting Down and Restarting the Interface Shutting down in the show interfaces command output. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 11-17 interface {vlan vlan...
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... low-latency (LL) feature enabled and the interleave feature disabled. These profiles have the prefix LRE, followed by the Catalyst 2950 LRE switch for the Catalyst 2950ST-24 LRE 997 Switches Profile Name LRE-12-9 LRE-12-3 LRE-9 LRE-9-6 LRE-9-4 LRE-9-3 LRE-6 (default) LRE-6-4 LRE-6-3 LRE-4 LRE...this . The interleave feature provides maximum protection against small interruptions on the LRE link if you assign a different profile to a 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...
... low-latency (LL) feature enabled and the interleave feature disabled. These profiles have the prefix LRE, followed by the Catalyst 2950 LRE switch for the Catalyst 2950ST-24 LRE 997 Switches Profile Name LRE-12-9 LRE-12-3 LRE-9 LRE-9-6 LRE-9-4 LRE-9-3 LRE-6 (default) LRE-6-4 LRE-6-3 LRE-4 LRE...this . The interleave feature provides maximum protection against small interruptions on the LRE link if you assign a different profile to a 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...
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... undesirable or interesting conditions on a Cisco 575 LRE or Cisco 576 LRE 997 CPE link but can use the information that the receive power is enabled by impulse noise for a given profile. The count resets on traffic levels). • PMD Freeze Event Counter: This counts the occurrence of ... log events, set traps, change 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 The remote transmit power varies according to distance from down to up if the LRE link comes up in...
... undesirable or interesting conditions on a Cisco 575 LRE or Cisco 576 LRE 997 CPE link but can use the information that the receive power is enabled by impulse noise for a given profile. The count resets on traffic levels). • PMD Freeze Event Counter: This counts the occurrence of ... log events, set traps, change 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 The remote transmit power varies according to distance from down to up if the LRE link comes up in...
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... LRE Configuring LRE Ports Assigning a Profile to a Specific LRE Port You can assign the same profile or different profiles to privileged EXEC mode. The switch resets the ports with the updated profile settings when they are immediately put in effect, and the global mode automatically becomes the active mode. Assigning a Global...no profile profile-name interface configuration command. Select 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 13-13
... LRE Configuring LRE Ports Assigning a Profile to a Specific LRE Port You can assign the same profile or different profiles to privileged EXEC mode. The switch resets the ports with the updated profile settings when they are immediately put in effect, and the global mode automatically becomes the active mode. Assigning a Global...no profile profile-name interface configuration command. Select 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 13-13
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...switch resets the ports with the first profile in the sequence and successively tries the next profiles (in other words, there is connected to a CPE device. Rate selection is enabled by default, but you connect a new CPE device to the switch 13-14 Catalyst 2950 and Catalyst 2955 Switch... Software Configuration Guide 78-11380-10 copy running , the switch chooses the profile for the LRE interface from a sequence, or predefined series of profiles, ...
...switch resets the ports with the first profile in the sequence and successively tries the next profiles (in other words, there is connected to a CPE device. Rate selection is enabled by default, but you connect a new CPE device to the switch 13-14 Catalyst 2950 and Catalyst 2955 Switch... Software Configuration Guide 78-11380-10 copy running , the switch chooses the profile for the LRE interface from a sequence, or predefined series of profiles, ...
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... -140 dBm/Hz. Caution Changing the noise model while the switch is 300. Supported noise-model values are reset to privileged EXEC mode. Follow these guidelines: • Verify how this feature only on a Catalyst 2950ST-24 LRE 997 switch: Step 1 Step 2 Command configure terminal lre upbo {noise-... version on an upstream carrier frequency of -140 dBm/Hz. A zero value for example, 450 means 45 dB). 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-21 To return the port to a reference PSD of 45 (-95 - [-140] = 45). The offset ...
... -140 dBm/Hz. Caution Changing the noise model while the switch is 300. Supported noise-model values are reset to privileged EXEC mode. Follow these guidelines: • Verify how this feature only on a Catalyst 2950ST-24 LRE 997 switch: Step 1 Step 2 Command configure terminal lre upbo {noise-... version on an upstream carrier frequency of -140 dBm/Hz. A zero value for example, 450 means 45 dB). 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-21 To return the port to a reference PSD of 45 (-95 - [-140] = 45). The offset ...
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... state to up 00:22:39: %LINEPROTO-5-UPDOWN: Line protocol on Interface LongReachEthernet0/1, changed state to down The CPE device is reset and the link is down. Ethernet connectivity is unavailable at its intended data rate. Users on the target CPE devices and local LRE... upgrade commands on that the upgraded LRE binaries are about to up 13-26 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Start LRE upgrade ? [yes]: Starting remote upgrade on CPE Lo0/1 Switch# 00:21:51: %LINEPROTO-5-UPDOWN: Line protocol on CPE Lo0/1. Ethernet connectivity...
... state to up 00:22:39: %LINEPROTO-5-UPDOWN: Line protocol on Interface LongReachEthernet0/1, changed state to down The CPE device is reset and the link is down. Ethernet connectivity is unavailable at its intended data rate. Users on the target CPE devices and local LRE... upgrade commands on that the upgraded LRE binaries are about to up 13-26 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Start LRE upgrade ? [yes]: Starting remote upgrade on CPE Lo0/1 Switch# 00:21:51: %LINEPROTO-5-UPDOWN: Line protocol on CPE Lo0/1. Ethernet connectivity...
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... changed state to up The CPE device has finished resetting. The desired profile is available but at low speeds. Table 13-10 Commands for this release. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-27 Chapter 13 Configuring LRE Displaying... LRE Status The CPE device finishes resetting. Ethernet connectivity is applied. 00:23:58: %LRE_LINK-3-UPDOWN: Interface Lo0...
... changed state to up The CPE device has finished resetting. The desired profile is available but at low speeds. Table 13-10 Commands for this release. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-27 Chapter 13 Configuring LRE Displaying... LRE Status The CPE device finishes resetting. Ethernet connectivity is applied. 00:23:58: %LRE_LINK-3-UPDOWN: Interface Lo0...
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... to the forwarding state, where both learning and frame forwarding are enabled. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 14-5 Spanning tree stabilizes each interface at the forwarding or blocking state. ...When the forward-delay timer expires, spanning tree moves the interface to the learning state and resets the forward-delay timer. 3. In the learning state, the interface continues to block frame forwarding as the switch...
... to the forwarding state, where both learning and frame forwarding are enabled. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 14-5 Spanning tree stabilizes each interface at the forwarding or blocking state. ...When the forward-delay timer expires, spanning tree moves the interface to the learning state and resets the forward-delay timer. 3. In the learning state, the interface continues to block frame forwarding as the switch...
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...MSTP The RSTP does not have the TCA bit set , the switch sends an agreement message after all of the other ports to support 802.1D switches. When an RSTP switch detects a topology change timer in 802.1D) is reset. However, if the TC-while timer (the same as the new..., for interoperability with RSTP (only an increase in which time the port transitions to an 802.1D switch and a configuration BPDU with the proposal flag set . 15-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 If the port is proposed and is only required to synchronize. The...
...MSTP The RSTP does not have the TCA bit set , the switch sends an agreement message after all of the other ports to support 802.1D switches. When an RSTP switch detects a topology change timer in 802.1D) is reset. However, if the TC-while timer (the same as the new..., for interoperability with RSTP (only an increase in which time the port transitions to an 802.1D switch and a configuration BPDU with the proposal flag set . 15-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 If the port is proposed and is only required to synchronize. The...
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...in the VLAN database and are allowed 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 Configuring Extended-Range VLANs Chapter 17 ...Configuring VLANs Configuring Extended-Range VLANs When the switch is in VTP transparent mode (VTP disabled)...
...in the VLAN database and are allowed 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 Configuring Extended-Range VLANs Chapter 17 ...Configuring VLANs Configuring Extended-Range VLANs When the switch is in VTP transparent mode (VTP disabled)...