The show spanning-tree vlan command provides Spanning Tree Protocol (STP) information on the root switch, including the bridge ID, root path, and root cost, as well as information on the local switch. The output of the command is as follows:
Switch#show spanning-tree vlan 10 VLAN0010 Spanning tree enabled protocol rstp Root ID Priority 24586 Address 0015.63f6.b700 Cost 19 Port 107 (FastEthernet3/0/1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 32778 (priority 32768 sys-id-ext 10) Address 000f.f794.3d00 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 Interface Role Sts Cost Prio.Nbr Type --------- ---- --- ---- -------- ---- Fa3/0/1 Root FWD 19 128.107 P2p Fa3/0/2 Altn BLK 19 128.108 P2p -----------------------------------------