Inter-area TE and L1/L2 ISIS routers

Unanswered Question
Jul 15th, 2007

I am a little bit confused when we talked about inter-area TE and L1/L2 ISIS routers.

I have 8 L1/L2 routers in a partial mesh, these routers belong to different ISIS areas.

As I understand ISIS implements a topology table for the L2 routes and thus a TE Tunnel is always possible between L1/L2 routers even if they belong to different area ids.

Inter-area TE only solves the issue for tunnels between L1 only routers belongging to different areas.

Am I correct? Can I go forward and configure a TE tunnel between L1/L2 routers in different areas?

Thanks, Roque

I have this problem too.
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r.gagliano Thu, 07/19/2007 - 17:51

So I guess what you mean is that I do not have to worry about setting up inter-area Tunnels because L1/L2 routers knows the core topology?

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