untagged vlans

Unanswered Question
Jun 5th, 2007

Hi all, can anyone tell me why would we want to untag a vlan ?

I have this problem too.
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mohammedmahmoud Tue, 06/05/2007 - 05:45


In 802.1Q trunking, all VLAN packets are tagged on the trunk link, except the native VLAN. The native VLAN packets are sent untagged on the trunk link. Therefore, the native VLAN should be the same on both switches configured for trunking. This way, you can deduce to which VLAN a frame belongs when you receive a frame with no tag. By default, VLAN 1 is the native VLAN on all switches.

HTH, please do rate all helpful replies,

Mohammed Mahmoud.


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