Cisco NM-8B-U User Guide - Page 70
Verifying the Bridge Priority of a VLAN, Configuring the Hello Time
UPC - 074632001001
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Configuration Tasks 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Verifying the Bridge Priority of a VLAN Step 1 Use the show spanning-tree vlan bridge command to verify the bridge priority: Router# show spanning-tree vlan 200 bridge brief Hello Max Fwd Vlan Bridge ID Time Age Delay VLAN200 33792 0050.3e8d.64c8 2 20 15 Protocol -------ieee Configuring the Hello Time To configure the hello interval for the spanning tree, use the following commands in global configuration mode: Step 1 Step 2 Command Purpose Router(config)# [no] spanning-tree vlan vlan-id Configures the hello time of a VLAN. The hello-time value can hello-time hello-time be from 1 to 10 seconds. Use the no form of this command to restore the defaults. Router(config)# end Exits configuration mode. Configuring the Forward-Delay Time for a VLAN To configure the forward delay for the spanning tree, use the following commands in global configuration mode: Step 1 Step 2 Command Router(config)# [no] spanning-tree vlan vlan-id forward-time forward-time Router(config)# end Purpose Configures the forward time of a VLAN. The value of forward-time can be from 4 to 30 seconds. Use the no form of this command to restore the defaults. Exits configuration mode. Configuring the Maximum Aging Time for a VLAN To configure the maximum age interval for the spanning tree, use the following commands in global configuration mode: Step 1 Step 2 Command Router(config)# [no] spanning-tree vlan vlan-id max-age max-age Router(config)# end Purpose Configures the maximum aging time of a VLAN. The value of max-age can be from 6 to 40 seconds. Use the no form of this command to restore the defaults. Exits configuration mode. Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 70