QinQ tunnel over L2TPv3

Unanswered Question
May 26th, 2010


I am curious if the feature QinQ tunnel over L2TPv3 (which eventually crosses over WAN). I am able to see this feature in Cisco FN but only available under GSR routers. Would like to know if this feature is available in other platforms.



I have this problem too.
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Giuseppe Larosa Wed, 05/26/2010 - 04:37

Hello Arun,

by adding two switches capable of QinQ tunneling and connecting their core facing interface to a L2TPV3 capable router you should be able to achieve this.

you need to take in account possible MTU issues

L2 CE --- tunnel-port --- switch ---- core trunk ---  router interface with per vlan L2TPv3 ===== IP WAN ===== router interface --per vlan L2tpv3 --- core trunk --- switch --- tunnel-port --- L2 CE

be aware that L2TPv3 provides point  to point L2 transport services and performance are limited by router capabilities and WAN speed.

Hope to help



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