Command
Show Spanning-Tree Vlan
Use
Shows the spanning tree information for a specific VLAN on the switch.
Syntax
Switch#show spanning-tree vlan <number>
Example
In this example, the spanning tree configuration for VLAN 1 is displayed on SW3.
SW3#show spanning-tree vlan 1VLAN0001 Spanning tree enabled protocol ieee Root ID Priority 32769 Address 0018.b973.fc80 Cost 19 Port 25 (FastEthernet0/23) Hello Time 2 sec Max Age 20 sec Forward Delay 15 secBridge ID Priority 32769 (priority 32768 sys-id-ext 1) Address 0019.060c.9400 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 Interface Role Sts Cost Prio.Nbr Type —————- —- — ——— ——– ——————————– Fa0/10 Desg FWD 19 128.12 P2p Fa0/11 Desg FWD 19 128.13 P2p Fa0/12 Desg FWD 19 128.14 P2p Fa0/13 Desg FWD 19 128.15 P2p Fa0/19 Altn BLK 19 128.21 P2p Fa0/20 Altn BLK 19 128.22 P2p Fa0/23 Root FWD 19 128.25 P2p Interface Role Sts Cost Prio.Nbr Type —————- —- — ——— ——– ——————————– Fa0/24 Altn BLK 19 128.26 P2p SW3#