Cisco Catalyst 3030 Command Reference Manual page 426

show spanning-tree
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:
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
<output truncated>
This is an example of output from the show spanning-tree interface interface-id command:
Switch# show spanning-tree interface gigabitethernet0/1
Vlan
---------------- ---- --- --------- -------- --------------------------------
VLAN0001
Switch# show spanning-tree summary
Switch is in pvst mode
Root bridge for: none
EtherChannel misconfiguration guard is enabled
Extended system ID
Portfast
PortFast BPDU Guard
Portfast BPDU Filter is disabled by default
Loopguard
UplinkFast
BackboneFast
Pathcost method used is short
Name
---------------------- -------- --------- -------- ---------- ----------
VLAN0001
VLAN0002
VLAN0004
VLAN0006
VLAN0031
VLAN0032
<output truncated>
---------------------- -------- --------- -------- ---------- ----------
37 vlans
Station update rate set to 150 packets/sec.
UplinkFast statistics
-----------------------
Number of transitions via uplinkFast (all VLANs)
Number of proxy multicast addresses transmitted (all VLANs) : 0
Cisco Catalyst Blade Switch 3030 Command Reference
2-398
hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Role Sts Cost
Root FWD 3019
is enabled
is disabled by default
is disabled by default
is disabled by default
is enabled
is enabled
Blocking Listening Learning Forwarding STP Active
1
3
3
3
3
3
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Chapter 2 Cisco Catalyst Blade Switch 3030 Cisco IOS Commands
Prio.Nbr Type
128.24 P2p
0 0 11
0 0 1
0 0 1
0 0 1
0 0 1
0 0 1
0 0 47
12
4
4
4
4
4
156
: 0
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