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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 trunk
Examples This example shows how to display trunking information for the switc h:
Console> show trunk
* - indicates vtp domain mismatch
# - indicates dot1q-all-tagged enabled on the port
Port Mode Encapsulation Status Native vlan
----- ------- -------------------- --------- ----------------
1/1 desirable dot1q trunking# 1
1/2 auto n-dot1q trunking 1
Console>
This example shows how to display detailed information about the specified trunk port:
Console> show trunk 1/1 detail
Port Mode Encapsulation Status Native vlan
-------- ----------- ------------- ------------ -----------
1/1 auto negotiate not-trunking 1
Port Peer-Port Mode Encapsulation Status
-------- --------- ----------- ------------- ------------
1/1 2/3 auto n-isl not-trunking
Port TrunkFramesTx TrunkFramesRx WrongEncap
-------- -------------------- -------------------- ----------
1/1 0 0 0
Port Vlans allowed on trunk
-------- ---------------------------------------------------------------------
1/1 1-1005
Port Vlans allowed and active in management domain
-------- ---------------------------------------------------------------------
1/1 1
Port Vlans in spanning tree forwarding state and not pruned
-------- ---------------------------------------------------------------------
1/1
Console>
This example shows how to display detailed information about the specified trunk port that has a VTP domain mismatch:
Console> show trunk 3/1 detail
Port Mode Encapsulation Status Native vlan
-------- ----------- ------------- ------------ -----------
3/1 auto negotiate not-trunking* 1
Port Peer-Port Mode Encapsulation Status
-------- --------- ----------- ------------- ------------
3/1 2/3 auto n-isl not-trunking
Port TrunkFramesTx TrunkFramesRx WrongEncap
-------- -------------------- -------------------- ----------
3/1 0 0 0
Port Vlans allowed on trunk
-------- ---------------------------------------------------------------------
3/1 1-1005