Protocol Action: 'RNFD: Fast border router crash detection in RPL' to Proposed Standard (draft-ietf-roll-rnfd-07.txt)

The IESG <iesg-secretary@ietf.org> Tue, 11 March 2025 14:01 UTC

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From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Subject: Protocol Action: 'RNFD: Fast border router crash detection in RPL' to Proposed Standard (draft-ietf-roll-rnfd-07.txt)
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Message-ID: <174170167885.528569.9649025632716178234@dt-datatracker-775fc5cbb8-824tp>
Date: Tue, 11 Mar 2025 07:01:18 -0700
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CC: The IESG <iesg@ietf.org>, draft-ietf-roll-rnfd@ietf.org, mcr+ietf@sandelman.ca, rfc-editor@rfc-editor.org, roll-chairs@ietf.org, roll@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/ietf-announce/qGQsy0P-G8xRCIXIUozZqgVFZl4>

The IESG has approved the following document:
- 'RNFD: Fast border router crash detection in RPL'
(draft-ietf-roll-rnfd-07.txt) as Proposed Standard

This document is the product of the Routing Over Low power and Lossy networks
Working Group.

The IESG contact persons are Gunter Van de Velde, Jim Guichard and John
Scudder.

A URL of this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-roll-rnfd/

Technical Summary

By and large, a correct operation of a RPL network requires border
routers to be up. In many applications, it is beneficial for the
nodes to detect a crash of a border router as soon as possible to
trigger fallback actions. This document describes RNFD, an extension
to RPL that expedites border router failure detection, even by an
order of magnitude, by having nodes collaboratively monitor the
status of a given border router. The extension introduces an
additional state at each node, a new type of RPL Control Message
Options for synchronizing this state among different nodes, and the
coordination algorithm itself.

Working Group Summary

The shepherd writeup notes "consensus was not rough". There is
an IOTDIR review which notes "not ready", however the author
responded in https://mailarchive.ietf.org/arch/msg/iot-directorate/M1AarDGI7qHpvDgz3zqiz2N1TRw/
and although the reviewer hasn't followed up to that reply,
it appears as though their concerns have been addressed.

Document Quality

There were several detailed reviews, including one by Victoria
Pritchard (https://mailarchive.ietf.org/arch/msg/rtg-dir/XXA90ID24LnIm8Rc2pKZFCmQQAA/)
which I (John) found especially helpful.

Personnel

The Document Shepherd for this document is Michael Richardson. The
Responsible Area Director is John Scudder.

Protocol Action: 'RNFD: Fast border router crash … The IESG