The MPLS WG Archive

[Shirish <sindurka@cisco.com>]

Hi Sandeep,

Usually this encapsulation is used in ATM  at Adaptaion
layer 5 for Classical IP over Atm traffic and  Lan Emulation.
So ATM comes into the play instead of Ethernet ,

This encap may occur in MPLS deployed ATM networks ,
and may not be with ethernet.But I am also not sure whether
any Service provider does support  IP traffic on IEEE 802.3 LLC SNAP.

Thanks.

Shirish








Sandeep Relan wrote:

> Dear Friends,
>
>  I had a question : Does any Vendor actively use IP
>                     over IEEE 802.3 LLC/SNAP ..??
>
>  In my knowledge, IP traffic over Ethernet has always
>  been Ethernet Type II. I am not sure if any vendor
>  sends IP traffic on IEEE 802.3 LLC SNAP.
>
>  The implication is that MPLS encapsulation with
>  802.3 LLC/SNAP may not practically occur with any
>  LSR..!!
>
>  Appreciate any insight into this issue..especially
>  why IEEE 802.3 LLC/SNAP is not that popular..??
>
>  Thanks,
>  Sandeep
>
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