Internet-Draft draft-ietf-lsr-ospf-ls-link-infinity-17.txt is now available.
It is a work item of the Link State Routing (LSR) WG of the IETF.
Title: Advertising Unreachable Links in OSPF
Authors: Liyan Gong
Weiqiang Cheng
Changwang Lin
Acee Lindem
Ran Chen
Name: draft-ietf-lsr-ospf-ls-link-infinity-17.txt
Pages: 26
Dates: 2026-01-28
Abstract:
In certain scenarios, it is necessary to advertise OSPF links that
are not applicable to the default SPF (Shortest Path First)
calculation for other purposes. In order to advertise these links
and not use them in the base SPF calculation, the metric
LSLinkInfinity (0xffff) is used to specify that the link is
unreachable.
MaxReachableLinkMetric (0xfffe) is defined to provide backward
compatible reachability in specifications that previously specified
advertisement of MaxLinkMetric (0xffff). This document updates RFC
5443, RFC 6987, and RFC 8770 with respect to the advertisement of
MaxReachableLinkMetric (0xfffe) rather than MaxLinkMetric (0xffff).
The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-lsr-ospf-ls-link-infinity/
There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-lsr-ospf-ls-link-infinity-17.html
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-lsr-ospf-ls-link-infinity-17
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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