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Catalyst 3560 Switch Command Reference
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Chapter 2 Catalyst 3560 Switch Cisco IOS Commands
show spanning-tree
Command Modes User EXEC
Command History
Usage Guidelines If the vlan-id variable is omitted, the command applies to the spanning-tree instance for all VLANs.
Expressions are case sensitive. For example, if you enter | exclude output, the lines that contain output
do not appear, but the lines that contain Output appear.
Examples This is an example of output from the show spanning-tree active command:
Switch# show spanning-tree active
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32768
Address 0001.42e2.cdd0
Cost 3038
Port 24 (GigabitEthernet0/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 49153 (priority 49152 sys-id-ext 1)
Address 0003.fd63.9580
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
Uplinkfast enabled
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Gi0/1 Root FWD 3019 128.24 P2p
<output truncated>
| begin (Optional) Display begins with the line that matches the expression.
| exclude (Optional) Display excludes lines that match the expression.
| include (Optional) Display includes lines that match the specified expression.
expression Expression in the output to use as a reference point.
Release Modification
12.2(25)SEC The digest keyword was added, and new digest and transmit hold count
fields appear.
12.1(19)EA1 This command was introduced.
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