Can not see trunk status when using command show interface trunk Catlyst 6500

[eigrpy]

Hi, I can not see some trunk when using command show interface trunk in switch 6500. The output of show ip interface brief and show run interface gx/x are up and trunk configured. Anyone can give me some suggestion ? Thank you

[InayathUlla Sharieff · Accepted solution]

HI,

Can you share the interface configuration?  I hope you have configured switchport mode trunk on the interface.

what is the output do you see when you run the command:

show int trunk

show int X/x capability

show int x/x switchport

HTH

Regards

Inayath

[eigrpy]

Thanks for your reply. Now I noticed the difference between port that show trunk and not show trunk when I use command show run int gx/y. Please see below. The first one show trunk and second does not. Do you think if the reason is using channel-group ? 

interface GigabitEthernet5/5
 switchport
 switchport trunk allowed vlan 3
 switchport mode trunk
 spanning-tree portfast
 

interface GigabitEthernet6/6
  switchport
 switchport access vlan 3
 switchport trunk allowed vlan 9
 switchport mode trunk
 channel-group 9 mode active

[InayathUlla Sharieff · Accepted solution]

Hi,

There is the culprit the config of port-channel:-

interface GigabitEthernet6/6
  switchport
 switchport access vlan 3
 switchport trunk allowed vlan 9
 switchport mode trunk
 channel-group 9 mode active  >>>> When you configure this command the port goes into the PO hence you dont see this under the show int trunk command were as this will be not represented as Po9 under the show int trunk.

HTH

Regards

Inayath

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[Dennis Mink]

Try show int Gix/y switchport instead

[paul driver]

Hello

Are you using CatIos by any chance?

try

show trunk

res

paul