Multiple vlans on a single port on a core switch

Unanswered Question
Jul 10th, 2007

Good afternoon to everyone. I ask your fogiveness ahead of time, as I am new to the networking department. My question is this: We have a Cisco 6509 core switch which of course, has trunking enabled. Is it possible to have a port on the switch enabled for multiple vlans? I believe the commands would be:

config t

interface gigabit x/x

switchport mode multi x,y

Your help is greatly appreciated!

I have this problem too.
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Collin Clark Tue, 07/10/2007 - 10:32

Here's an example-


switchport trunk encapsulation dot1q

switchport trunk allowed vlan 601,604,606,609,610,613,751

switchport mode trunk

no ip address

speed 1000

duplex full

HTH and please rate.

mohammedmahmoud Tue, 07/10/2007 - 10:35


Please check the following link:

But please note that a multi-VLAN port and trunk port cannot coexist on the same switch.

[edit] The multi-VLAN port feature is supported only on Catalyst 2900XL/3500XL Series Switches. This feature is not supported on Catalyst 4500/4000, 5500/5000, or 6500/6000 Series Switches or any other Catalyst switches.


Mohammed Mahmoud.

Swade22mo Tue, 07/10/2007 - 10:39

I certainly appreciate the expedient response everyone! I was hoping there was a way around having a trunk port and multi-VLAN port on the same switch, but it appears not to be the case. Best regards to everyone and thank you again!


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