[c-nsp] MPLS down to the CPE

[Adam Vitkovsky]

>Or IP FRR If you aren't in a ring scenario which breaks it. 
Not anymore, XR and XE and I believe the newest me-3600 code also does
support IP FRR with Remote-LFA which solves the LFA inequality problem in
ring topologies. And XR supports te-tunnel to be selected as backup
interface allowing you to take care of any corner cases that rLFA can't
cover. 

adam