Cisco 6500 Series Software Configuration Manual page 218

Configuring STP
Command
Step 5
Router# show spanning-tree interface {type
slot/port} | {port-channel port_channel_number}
Router# show spanning-tree vlan vlan_ID
1. type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
This example shows how to configure the STP port priority of Fast Ethernet port 4/4:
Router# configure terminal
Router(config)# interface fastethernet 4/4
Router(config-if)# spanning-tree port-priority 160
Router(config-if)# end
Router#
This example shows how to verify the configuration of Fast Ethernet port 4/4:
Router# show spanning-tree interface fastethernet 4/4
Vlan
---------------- ---- --- --------- -------- --------------------------------
VLAN0001
VLAN0006
...
VLAN0198
VLAN0199
VLAN0200
Router#
Fastethernet 4/4 is a trunk. Several VLANs are configured and active as shown in the example. The port
priority configuration applies to all VLANs on this interface.
The show spanning-tree interface command only displays information if the port is connected and
Note
operating. If this condition is not met, enter a show running-config interface command to verify the
configuration.
This example shows how to configure the VLAN port priority of Fast Ethernet port 4/4:
Router# configure terminal
Enter configuration commands, one per line.
Router(config)# interface fastEthernet 4/4
Router(config-if)# spanning-tree vlan 200 port-priority 64
Router(config-if)# ^Z
Router#
The configuration entered in the example only applies to VLAN 200. All VLANs other than 200 still
have a port priority of 160.
This example shows how to verify the configuration:
Router# show spanning-tree interface fastethernet 4/4
Vlan
---------------- ---- --- --------- -------- --------------------------------
VLAN0001
VLAN0006
...
VLAN0199
VLAN0200
Router#
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
15-28
Purpose
1
Verifies the configuration.
Role Sts Cost Prio.Nbr Status
Back BLK 200000 160.196
Back BLK 200000 160.196
Back BLK 200000 160.196
Back BLK 200000 160.196
Back BLK 200000 160.196
Role Sts Cost Prio.Nbr Status
Back BLK 200000 160.196
Back BLK 200000 160.196
Back BLK 200000 160.196
Desg FWD 200000 64.196
Chapter 15 Configuring STP and IEEE 802.1s MST
P2p
P2p
P2p
P2p
P2p
End with CNTL/Z.
P2p
P2p
P2p
P2p
78-14099-04