Removing VLAN from a trunk link

Unanswered Question
Aug 6th, 2007

How can i do that?

I mean, how can i forbid VLAN1 (or a range of VLANs) to enter the trunk link of my switch?

I have this problem too.
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Jagdeep Gambhir Mon, 08/06/2007 - 06:24

Hi,

The way to remove the vlans is by using "SWITCHPORT TRUNK ALLOWED VLAN REMOVE VLAN ID".

Vlan 1 minimization (Deleting vlan1 from individual trunk) is not allowed on release

12.1(12c EA1) which you are running. This might be causing all the problem (Stopping

protocol packets which can only be communicated through vlan1 ).

Vlan1 minimization is supported from release 12.1(14)EA1 . This is documented in the

following link ( Please look at "new software features" )

http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/12114ea1/ol395001.

htm#312746

Regards,

~JG

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