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Catalyst 3750 Metro Switch Command Reference
OL-9645-10
Chapter 2 Catalyst 3750 Metro Switch Cisco IOS Commands
show spanning-tree
Command Modes User EXEC; indicated keywords available only in privileged EXEC mode.
Command History
Usage Guidelines If the vlan-id variable is omitted, the command applies to the spanning-tree instance for all VLANs.
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 (GigabitEthernet1/0/1)
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
---------------- ---- --- --------- -------- --------------------------------
Gi1/0/1 Root FWD 3019 128.24 P2p
<output truncated>
Release Modification
12.1(14)AX This command was introduced.
12.2(25)SEG The digest keyword was added, and new digest and transmit hold count
fields appear.
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