Hi,
I am reading now a little bit about NSF and NSR.
NSF is actually graceful restart or am I wrong? It waits first when a RP is shutdown and after the holdtime it clears the neighbor relationship?
NSR is a feature that does not tell the neighbor that a RP switchover is occuring and it does not communicated with other neighbors?
Please correct me if I am wrong and if you have some more information please be kind to write it down.
NSR looks like a better feature because a new neighbor adjacency is not needed.
Do I have to use NSR with NSF or just NSR?
Here is a link about HA
http://www.nanog.org/meetings/nanog42/presentations/Weissner_SSO.pdf