Configuring The Bridge Priority Of A Vlan - Cisco NM-8B-U - HW ROUTERS L-M User Manual

16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
Command
Step 3
Router(config-if)# [no] spanning-tree vlan
vlan-id cost port-cost
Step 4
Router(config-if)# end
Verifying Spanning Tree Port Cost
Step 1 Use the show spanning-tree vlan command to verify the spanning-tree port cost configuration:
Router# show spanning-tree vlan 200
Port 264 (FastEthernet5/8) of VLAN200 is forwarding
Port path cost 17, Port priority 64, Port Identifier 129.8.
Designated root has priority 32768, address 0010.0d40.34c7
Designated bridge has priority 32768, address 0010.0d40.34c7
Designated port id is 128.1, designated path cost 0
Timers: message age 2, forward delay 0, hold 0
Number of transitions to forwarding state: 1
BPDU: sent 0, received 13513
Router#

Configuring the Bridge Priority of a VLAN

Exercise care when using this command. For most situations spanning-tree vlan vlan-id root primary
Caution
and the spanning-tree vlan vlan-id root secondary are the preferred commands to modify the bridge
priority.
To configure the spanning tree bridge priority of a VLAN, use the following commands in global
configuration mode:
Command
Step 1
Router(config)# [no] spanning-tree vlan
vlan-id priority bridge-priority
Step 2
Router(config)# end
Purpose
Configures the VLAN port cost for an interface. The value of
port-cost can be from 1 to 65,535.
Use the no form of this command to restore the defaults.
Exits configuration mode.
Purpose
Configures the bridge priority of a VLAN. The
bridge-priority value can be from 1 to 65535.
Use the no keyword to restore the defaults.
Exits configuration mode.
Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ
Configuration Tasks
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