Catalyst 2960-L not showing Trunk allowed Vlans

[karlmaestrado]

Hi Guys,

i would like to ask why my cisco catalyst 2960-L Version 15.2(6r)E is not showing the allowed vlans?

Thank you!

[balaji.bandi]

Trying to undersdtand the question, on the device config it was not allowing you to configure or after configuration not showing in teh running for that allowed VLAN ?

can you post the example config, and show version of the device.

[karlmaestrado]

Hi,

the switch allowing me to config the trunk allowed vlan but it happens that after configured the trunk allowed vlan in sh run cmd it's not showing in the trunk port of the switch.

[SamanBayat4424 · Accepted solution]

Hello karlmaestrado

If you want to verify the allowed Vlan you have to try this command:
show interfaces trunk

good luck

[karlmaestrado]

the allowed vlans showed in sh interfaces trunk but in sh run command it doesn't show.

[SamanBayat4424]

it will help if you post the output of show interfaces trunk

[Georg Pauwen]

Hello,

if you happen to run the Lite image, it supports only 64 Vlans. Which ones are you trying to allow ?

[karlmaestrado]

Hi Georg,
my catalyst 2960-L w/ version 15.2(6)E2b. I think im not running it to lite image. im trying to allow vlan 20-24 then in sh run command the allowed vlan was not showing in the trunk port.

[Alan Ng'ethe · Accepted solution]

show iterfaces trunk will give you the information you seek.

Try also show run all interface Gi0/26