voice vlans

Unanswered Question
Mar 7th, 2007

Hi all, quick question, if im using vlan 10 as my data vlan and vlan 11 for my voice, how do i make sure that the data vlan 10 is being used when i issue the voice vlan 11 command ?

I have this problem too.
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Brandon Buffin Wed, 03/07/2007 - 19:48

The configuration varies by switch. See below for variations.

Cat 4k/6k

set vlan 10 5/1

set port auxiliaryvlan 5/1 11

Catalyst 3500 and Etherswitch module

switchport mode trunk

switchport trunk encapsulation dot1q

switchport trunk native vlan 10

switchport voice vlan 11

Catalyst 3550/3560

switchport access vlan 10

switchport voice vlan 11

Hope this helps. If so, please rate the post.


carl_townshend Thu, 03/08/2007 - 01:15

Hi There, thanks for that, what if I have say 4 different data vlans on the same switch for each dept for example? what would i do here as they all cant be native ?

Brandon Buffin Thu, 03/08/2007 - 05:27

This is a per port configuration, so 1 vlan will be native on each port.

On a trunk port, you can set the vlans that are allowed with the following command.

switchport trunk allowed vlan

If you ? after this command, you will see that you have several options for allowing vlans.

Hope this helps.


carl_townshend Thu, 03/08/2007 - 05:39

So could I on my port have say

switchport access vlan 50

switchport voice vlan 10



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