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Is “VLAN double-tagged” the same thing as ‘VLAN stacked’?

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Is a packet having 2 '802.1Q' headers equivalent to that?

Or can anyone provide me an example packet demonstrating double-tagged vs. stacked?

asked 14 Feb '14, 16:55

techynewbie's gravatar image

techynewbie
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One Answer:

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Yes it's the same, also called Q-in-Q, according to the standard 802.1ad.

Is a packet having 2 '802.1Q' headers equivalent to that?

If it adheres to the standard: yes.

See the following question about double VLAN tags.

http://ask.wireshark.org/questions/15682/wrong-vlan-outer-tag-shown

There is also a cloudshark link to a VLAN double tagged (stacked) frame in that question.

Regards
Kurt

answered 15 Feb '14, 10:50

Kurt%20Knochner's gravatar image

Kurt Knochner ♦
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accept rate: 15%

edited 15 Feb '14, 11:28