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As I understand 802.1Q, the framework in 802.1Q allows an arbitrary number of tags to be in a frame.
Can you point me to specific text in 802.1Q that prohibits or limits support to 2 tags? -- Kevin A. Noll From: Glen Kramer <glen.kramer@xxxxxxxxxxxx> Kevin, This was not an arbitrary decision. Both 802.1Q and 1904.1 define frame formats and operations on double-tagged frames. There is no specification defining the format or processing operations
for triple- or quadruple-tagged frames. So, if a user classifies and manipulates the 3rd and 4th tag, what existing standard defines that processing? In 802.1, the ISS interface shows that frames can have just
two tags S-TAG and C-TAG (I am not taking about I-tagged frames, which are very different). -Glen From: Kevin Noll [mailto:kevin.noll@xxxxxxxxxxxx]
Currently the draft allows classification and manipulation on up to 2 VLAN tags. Recalling the discussion that settled on 2 tags, this was a somewhat arbitrary decision that was made to allow the discussion
to move on. It is common to have more than 2 tags.
How would a user classify on or manipulate a 3rd or 4th tag, or an arbitrary tag depth? --kan-- -- Kevin A. Noll To unsubscribe from the STDS-1904-2-TF list, click the following link:
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