Multipoint L2TPv3 (LAN-to-LAN extension)

[Jason Fraioli]

Scenario:  extend multiple layer 2 vlans to multiple locations (at least 3) over IPSEC.

I used L2TPv3 to accomplish this goal for a single vlan.  The solution works great, but I’ve been given a new requirement to extend multiple vlans over the same physical links (point-to-point fiber).

Question:  Is it possible to trunk vlans over L2TPv3?  If so, is it possible to do so with sub interfaces (on the LAN side of the router), or will I need physical ports for the pseudowires/xconnects?  If I can’t trunk the vlans or use sub interfaces, then I’ll end up having to use physical ports to create the pseudowire mesh (which is how I originally implemented this scenario for the single vlan).  That brings me to my next, and probably most important, question:

Question: Is there a better way to approach this scenario?

Thanks for any help you can offer.

Jason

[Peter Koltl]

You can replicate 802.1q tagged frames from one physical interface to another site or choose to use xconnect on a subinterface. It's up to you, both works.