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Catalyst 6500 Series Switch Command Reference—Release8.1
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Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands show spantree summary
show spantree summary
To display a summary of spanning tree information, use the show spantree summary command.
show spantree summary [novlan]
show spantree summary {mistp-instance | mst} [noinstance]
Syntax Description
Defaults This command has no default settings.
Command Types Switch command.
Command Modes Normal.
Usage Guidelines If the switch is not the root for any VLANs, “none” is displayed in the “Root switch for vlans” field.
Examples This example shows how to display a summary of spanning tree in for matio n:
Console> show spantree summary
Spanning tree mode: RAPID-PVST+
MAC address reduction: enabled
Root switch for vlans: none.
Global loopguard is disabled on the switch.
Global portfast is disabled on the switch.
BPDU skewing detection disabled for the bridge.
BPDU skewed for vlans: none.
Portfast bpdu-guard disabled for bridge.
Portfast bpdu-filter disabled for bridge.
Uplinkfast disabled for bridge.
Backbonefast disabled for bridge.
Summary of connected spanning tree ports by vlan
VLAN Blocking Listening Learning Forwarding STP Active
----- -------- --------- -------- ---------- ----------
1 0 0 0 2 2
Blocking Listening Learning Forwarding STP Active
----- -------- --------- -------- ---------- ----------
Total 0 0 0 2 2
Console>
novlan (Optional) Displays non-VLAN-specific information only.
mistp-instance Displays MISTP instance-specific information only.
mst Displays MST instance-specific information only.
noinstance (Optional) Displays non-instance-specific information only.