[c-nsp] IP LFA in ring topology

Adam Vitkovsky adam.vitkovsky at swan.sk
Thu Nov 29 09:24:03 EST 2012


> At R3 the label would be popped, and forwarded based on original [P1,
VPNn] stack, which is also unaffected by the fault, from R3 POV.

But what if R3 still sees the best path towards P1 via R5 direction (leg of
the ring)
R5 would have to impose a label stack to get all the way to R1 or basically
to a node on the ring that can be used to forward the traffic to the
destination loop free

adam




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