Internet-Draft draft-ietf-lsr-igp-ureach-prefix-announce-11.txt is now
available. It is a work item of the Link State Routing (LSR) WG of the IETF.
Title: IGP Unreachable Prefix Announcement
Authors: Peter Psenak
Clarence Filsfils
Daniel Voyer
Shraddha Hegde
Gyan Mishra
Name: draft-ietf-lsr-igp-ureach-prefix-announce-11.txt
Pages: 17
Dates: 2025-09-25
Abstract:
Summarization is often used in multi-area or multi-domain networks to
improve network efficiency and scalability. With summarization in
place, there is a need to signal loss of reachability to an
individual prefix covered by the summary. This enables fast
convergence by steering traffic, when aplicable, away from the node
which owns the prefix and is no longer reachable.
This document specifies protocol mechanisms in IS-IS and OSPF,
together with two new flags, to advertise such prefix reachability
loss.
The term OSPF in this document is used to refer to both OSPFv2 and
OSPFv3.
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-lsr-igp-ureach-prefix-announce/
There is also an HTMLized version available at:
https://datatracker.ietf.org/doc/html/draft-ietf-lsr-igp-ureach-prefix-announce-11
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-lsr-igp-ureach-prefix-announce-11
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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