The IESG has received a request from the IPv6 Maintenance WG (6man) to consider the following document: - 'Neighbor Unreachability Detection is too impatient' <draft-ietf-6man-impatient-nud-06.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2013-05-09. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract IPv6 Neighbor Discovery includes Neighbor Unreachability Detection. That function is very useful when a host has an alternative neighbor, for instance when there are multiple default routers, since it allows the host to switch to the alternative neighbor in short time. This time is 3 seconds after the node starts probing by default. However, if there are no alternative neighbors, this is far too impatient. This document specifies relaxed rules for Neighbor Discovery retransmissions that allow an implementation to choose different timeout behavior based on whether or not there are alternative neighbors. This document updates RFC 4861. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-6man-impatient-nud/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-6man-impatient-nud/ballot/ No IPR declarations have been submitted directly on this I-D.
