A new Request for Comments is now available in online RFC libraries.
RFC 9866
Title: Root Node Failure Detector (RNFD):
Fast Detection of Border Router Crashes
in the Routing Protocol for Low-Power
and Lossy Networks (RPL)
Author: K. Iwanicki
Status: Standards Track
Stream: IETF
Date: October 2025
Mailbox: [email protected]
Pages: 22
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-roll-rnfd-07.txt
URL: https://www.rfc-editor.org/info/rfc9866
DOI: 10.17487/RFC9866
By and large, correct operation of a network running the Routing
Protocol for Low-Power and Lossy Networks (RPL) requires border
routers to be up. In many applications, it is beneficial for the
nodes to detect a failure of a border router as soon as possible to
trigger fallback actions. This document specifies the Root Node
Failure Detector (RNFD), an extension to RPL that expedites detection
of border router crashes 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
Option for synchronizing this state among different nodes, and the
coordination algorithm itself.
This document is a product of the Routing Over Low power and Lossy networks
Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
memo is unlimited.
This announcement is sent to the IETF-Announce and rfc-dist lists.
To subscribe or unsubscribe, see
https://www.ietf.org/mailman/listinfo/ietf-announce
https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist
For searching the RFC series, see https://www.rfc-editor.org/search
For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk
Requests for special distribution should be addressed to either the
author of the RFC in question, or to [email protected]. Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.
The RFC Editor Team
_______________________________________________
rfc-dist mailing list -- [email protected]
To unsubscribe send an email to [email protected]
http://www.rfc-editor.org
