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 [email protected] mailing lists by 2014-11-03. Exceptionally, comments may be sent to [email protected] 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.
