Cisco 4500M Command Reference Manual page 419

Chapter2 Cisco IOS Commands for the Catalyst 4500 Series Switches
This example shows how to display spanning tree information for a specific bridge group:
Switch# show spanning-tree vlan 1
UplinkFast is disabled
BackboneFast is disabled
This example shows how to display a summary of port states:
Switch# show spanning-tree summary
Root bridge for:VLAN1, VLAN2.
PortFast BPDU Guard is disabled
EtherChannel misconfiguration guard is enabled
UplinkFast is disabled
BackboneFast is disabled
Default pathcost method used is short
Name
-------------------- -------- --------- -------- ---------- ----------
VLAN1
VLAN2
-------------------- -------- --------- -------- ---------- ----------
Switch#
This example shows how to display the total lines of the spanning tree state section:
Switch#
Root bridge for:VLAN1, VLAN2.
PortFast BPDU Guard is disabled
EtherChannel misconfiguration guard is enabled
UplinkFast is disabled
BackboneFast is disabled
Default pathcost method used is short
Name
-------------------- -------- --------- -------- ---------- ----------
Switch#
This example shows how to determine whether any ports are in root inconsistent state:
Switch#
Name
-------------------- -------------------- ------------------
VLAN1
Number of inconsistent ports (segments) in the system:1
Switch#
78-16201-01
Blocking Listening Learning Forwarding STP Active
0
0
2 VLANs 0 0
show spanning-tree summary totals
Blocking Listening Learning Forwarding STP Active
2 VLANs 0 0
show spanning-tree inconsistentports
Interface
FastEthernet3/1
Catalyst4500 Series SwitchCiscoIOS Command Reference—Release 12.2(18)EW
0 0 1
0 0 1
0 2
0 2
Inconsistency
Root Inconsistent
show spanning-tree
1
1
2
2
2-387