Dell PowerEdge M520 Dell Converged Enhanced Ethernet Command Reference - Page 191

show spanning-tree brief 11 show spanning-tree brief Displays the status and parameters of the Spanning Tree Protocol. Synopsis show spanning-tree brief Operands none Defaults There are no default configurations for this command. Command EXEC mode Modes Description Use this command to display the status and parameters of the Spanning Tree Protocol. It includes the port roles and port states. The following describes the port roles and states: • Port roles-root port, designated port, alternate port and backup port. • Port states-discarding, learning, and forwarding. • Port types-edge port (PortFast), point-to-point, and shared port. Usage There are no usage guidelines for this command. Guidelines Examples To display the status and parameters of the Spanning Tree Protocol: switch#show spanning-tree brief Spanning-tree Mode: Rapid Spanning Tree Protocol Root ID Priority 32768 Address 0005.1e76.1aa0 Hello Time 2, Max Age 20, Forward Delay 15 Bridge ID Priority 32768 Address 0005.1e76.1aa0 Hello Time 2, Max Age 20, Forward Delay 15, Tx-HoldCount 6 Migrate Time 3 sec Interface Role Sts Cost Prio Link-type Boundary Edge Te 0/0 DIS DSC 2000 128 P2P Yes No Te 0/1 ALT BLK 2000 128 P2P Yes No Te 0/2 RTPT BLK 2000 128 P2P Yes No Te 0/3 DIS BLK 2000 128 P2P Yes No Te 0/8 DIS DSC 2000 128 P2P Yes No Te 0/19 DIS DSC 2000 128 P2P Yes No Te 0/20 DIS DSC 2000 128 P2P Yes No See Also show spanning-tree interface Dell Converged Enhanced Ethernet Command Reference 175 53-1002115-01