Last Call: <draft-ietf-manet-nhdp-optimization-03.txt> (An Optimization for the MANET Neighborhood Discovery Protocol (NHDP)) to Proposed Standard

The IESG <iesg-secretary@ietf.org> Mon, 20 October 2014 14:45 UTC

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From: The IESG <iesg-secretary@ietf.org>
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Subject: Last Call: <draft-ietf-manet-nhdp-optimization-03.txt> (An Optimization for the MANET Neighborhood Discovery Protocol (NHDP)) to Proposed Standard
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Date: Mon, 20 Oct 2014 07:21:18 -0700
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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.

Last Call: <draft-ietf-manet-nhdp-optimization-03… The IESG