Hi, Not useful for router-router link. However it is very useful for first-hop redundancy in data center environment - if you cannot implement VRRP for some reason. Best Regards, Janos Mohacsi Head of HBONE+ project Network Engineer, Director Network and Multimedia NIIF/HUNGARNET, HUNGARY Co-chair of Hungarian IPv6 Forum Key 70EF9882: DEC2 C685 1ED4 C95A 145F 4300 6F64 7B00 70EF 9882 On Thu, 3 May 2012, S, Somasundaram (Somasundaram) wrote:
Hi Everyone, Would like to hear from you on the significance of IPV6 "Neighbor Unreachability detection (NUD)" specifically on the Router-Router link. While quick failure detection protocols like BFD are already present to detect the liveliness of the neighbor, does the providers/operators find NUD to be useful?
Rgds/ Somasundaram