Cisco WS-SUP32-GE-3B - Supervisor Engine 32 Software Configuration Manual page 255

Chapter 17 Configuring STP and MST
Command
Step 5
Router# show spanning-tree interface
{gigabitethernet 1/port} | {port-channel
port_channel_number}
Router# show spanning-tree vlan vlan_ID
This example shows how to configure the STP port priority of Gigabit Ethernet port 1/4:
Router# configure terminal
Router(config)# interface gigabitethernet 1/4
Router(config-if)# spanning-tree port-priority 160
Router(config-if)# end
Router#
This example shows how to verify the configuration of Gigabit Ethernet port 1/4:
Router# show spanning-tree interface gigabitethernet 1/4
Vlan
---------------- ---- --- --------- -------- --------------------------------
VLAN0001
VLAN0006
...
VLAN0198
VLAN0199
VLAN0200
Router#
Gigabit Ethernet port 1/4 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 Gigabit Ethernet port 1/4:
Router# configure terminal
Enter configuration commands, one per line.
Router(config)# interface gigabitethernet 1/4
Router(config-if)# spanning-tree vlan 200 port-priority 64
Router(config-if)# end
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 gigabitethernet 1/4
Vlan
---------------- ---- --- --------- -------- --------------------------------
VLAN0001
VLAN0006
...
VLAN0199
VLAN0200
Router#
OL-11439-03
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
Catalyst Supervisor Engine 32 PISA Cisco IOS Software Configuration Guide, Release 12.2ZY
Purpose
Verifies the configuration.
P2p
P2p
P2p
P2p
P2p
End with CNTL/Z.
P2p
P2p
P2p
P2p
Configuring STP
17-31