Dell S3100 EMC Command Line Reference Guide for the Series 9.14.1.5 - Page 1763

Version 6.2.1.1 Description Introduced on the E-Series. Usage Information Enable spanning tree group 0 prior to using this command. The following describes the show spanning-tree 0 command shown in the example. Field "Bridge Identifier..." "Configured hello..." "We are..." "Current root..." "Topology flag..." "Number of..." Description Lists the bridge priority and the MAC address for this STP bridge. Displays the settings for hello time, max age, and forward delay. States whether this bridge is the root bridge for the STG. Lists the bridge priority and MAC address for the root bridge. States whether the topology flag and the detected flag were set. Displays the number of topology changes, the time of the last topology change, and on what interface the topology change occurred. "Timers" "Times" Lists the values for the following bridge timers: hold time, topology change, hello time, max age, and forward delay. List the number of seconds since the last: • hello time • topology change • notification • aging "Port 1..." "Port path..." "Designated root..." "Designated port..." Displays the Interface type slot/port information and the status of the interface (Disabled or Enabled). Displays the path cost, priority, and identifier for the interface. Displays the priority and MAC address of the root bridge of the STG that the interface belongs. Displays the designated port ID. Example DellEMC# show spann 0 Executing IEEE compatible Spanning Tree Protocol Bridge Identifier has priority 32768, Address 0001.e800.0a56 Configured hello time 2, max age 20, forward delay 15 We are the root of the spanning tree Current root has priority 32768 address 0001.e800.0a56 Topology change flag set, detected flag set Number of topology changes 1 last change occurred 0:00:05 ago from GigabitEthernet 1/3 Timers:hold 1, topology change 35 hello 2, max age 20, forward_delay 15 Times:hello 1, topology change 1, notification 0, aging 2 Port 26 (GigabitEthernet 1/1) is Forwarding Port path cost 4, Port priority 8, Port Identifier 8.26 Designated root has priority 32768, address 0001.e800.0a56 Designated bridge has priority 32768, address 0001.e800.0a56 Designated port id is 8.26, designated path cost 0 Timers: message age 0, forward_delay 0, hold 0 Number of transitions to forwarding state 1 BPDU: sent:18, received 0 Spanning Tree Protocol (STP) 1763