Cisco WS-C3560E-48PD-SF Command Reference - Page 554
show spanning-tree detail, show spanning-tree interface
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show spanning-tree Chapter 2 Catalyst 3560 Switch Cisco IOS Commands This is an example of output from the show spanning-tree detail command: Switch# show spanning-tree detail VLAN0001 is executing the ieee compatible Spanning Tree protocol Bridge Identifier has priority 49152, sysid 1, address 0003.fd63.9580 Configured hello time 2, max age 20, forward delay 15 Current root has priority 32768, address 0001.42e2.cdd0 Root port is 24 (GigabitEthernet0/1), cost of root path is 3038 Topology change flag not set, detected flag not set Number of topology changes 0 last change occurred 1d16h ago Times: hold 1, topology change 35, notification 2 hello 2, max age 20, forward delay 15 Timers: hello 0, topology change 0, notification 0, aging 300 Uplinkfast enabled Port 1 (GigabitEthernet0/1) of VLAN0001 is forwarding Port path cost 3019, Port priority 128, Port Identifier 128.24. Designated root has priority 32768, address 0001.42e2.cdd0 Designated bridge has priority 32768, address 00d0.bbf5.c680 Designated port id is 128.25, designated path cost 19 Timers: message age 2, forward delay 0, hold 0 Number of transitions to forwarding state: 1 Link type is point-to-point by default BPDU: sent 0, received 72364 This is an example of output from the show spanning-tree interface interface-id command: Switch# show spanning-tree interface gigabitethernet0/1 Vlan Role Sts Cost Prio.Nbr Type VLAN0001 Root FWD 3019 128.24 P2p Switch# show spanning-tree summary Switch is in pvst mode Root bridge for: none EtherChannel misconfiguration guard is enabled Extended system ID is enabled Portfast is disabled by default PortFast BPDU Guard is disabled by default Portfast BPDU Filter is disabled by default Loopguard is disabled by default UplinkFast is enabled BackboneFast is enabled Pathcost method used is short Name Blocking Listening Learning Forwarding STP Active VLAN0001 1 0 0 11 12 VLAN0002 3 0 0 1 4 VLAN0004 3 0 0 1 4 VLAN0006 3 0 0 1 4 VLAN0031 3 0 0 1 4 VLAN0032 3 0 0 1 4 37 vlans 109 0 0 47 156 Station update rate set to 150 packets/sec. UplinkFast statistics Number of transitions via uplinkFast (all VLANs) : 0 Number of proxy multicast addresses transmitted (all VLANs) : 0 2-522 Catalyst 3560 Switch Command Reference 78-16405-05