Installation guide

Cisco HWIC-4ESW and HWIC-D-9ESW EtherSwitch Interface Cards
How to Configure EtherSwitch HWICs
28
Cisco IOS Release 12.3(8)T4
OL-6454-01
DETAILED STEPS
Verifying Spanning Tree Port Priority
Use the show spanning-tree interface to verify spanning-tree interface and the spanning-tree port priority
configuration, as illustrated below:
Router# show spanning-tree interface fastethernet 0/1/6
Port 264 (FastEthernet0/1/6) of VLAN200 is forwarding
Port path cost 19, Port priority 100, 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 Spanning Tree Port Cost
Beginning in global configuration mode, follow these steps to configure the spanning tree port cost of
an interface.
SUMMARY STEPS
1. interface {{ethernet | fastethernet} interface-id
2. [no] spanning-tree cost port _ cost
3. [no] spanning-tree vlan vlan _ ID cost port _ cost
4. end
Command Purpose
Step 1
Router(config)# interface {{ethernet |
fastethernet} interface-id
Selects an interface to configure.
Step 2
Router(config-if)# [no] spanning-tree
port-priority port _ priority
Configures the port priority for an interface. The of
port_priority value can be from 4 to 252 in increments of 4.
Use the no form of this command to restore the defaults.
Step 3
Router(config-if)# [no] spanning-tree vlan
vlan _ ID port-priority port _ priority
Configures the VLAN port priority for an interface. The
port_priority value can be from 4 to 252 in increments of 4.
Use the no form of this command to restore the defaults.
Step 4
Router(config-if)# end
Exits configuration mode.