The IESG has received a request from the Mobile Ad-hoc Networks WG (manet) to consider the following document: - 'An Optimization for the MANET Neighborhood Discovery Protocol (NHDP)' <draft-ietf-manet-nhdp-optimization-03.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 2014-11-03. 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 The link quality mechanism of the MANET Neighborhood Discovery Protocol (NHDP) enables "ignoring" some 1-hop neighbors if the measured link quality from that 1-hop neighbor is below an acceptable threshold, while still retaining the corresponding link information as acquired from HELLO message exchange. This allows immediate reinstatement of the 1-hop neighbor if the link quality later improves sufficiently. NHDP also collects information about symmetric 2-hop neighbors. However it specifies that if a link from a symmetric 1-hop neighbor ceases being symmetric, including while "ignored" as described above, then corresponding symmetric 2-hop neighbors are removed. This may lead to symmetric 2-hop neighborhood information being permanently removed (until further HELLO messages are received) if the link quality of a symmetric 1-hop neighbor drops below the acceptable threshold, even if only for a moment. This specification updates RFC6130 "Mobile Ad Hoc Network (MANET) Neighborhood Discovery Protocol (NHDP)", and RFC7181 "The Optimized Link State Routing Protocol version 2 (OLSRv2)" to permit retaining, but ignoring, symmetric 2-hop information when the link quality from the corresponding 1-hop neighbor drops below the acceptable threshold. This allows immediate reinstatement of the symmetric 2-hop neighbor if the link quality later improves sufficiently, thus making the symmetric 2-hop neighborhood more "robust". The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-manet-nhdp-optimization/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-manet-nhdp-optimization/ballot/ No IPR declarations have been submitted directly on this I-D.
