Internet-Draft draft-ietf-lsr-ospf-ls-link-infinity-07.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-07.txt
Pages: 17
Dates: 2025-08-22
Abstract:
In certain scenarios, it is necessary to advertise unreachable links
in OSPF, which should be explicitly excluded from the related SPF
calculation. This document specifies using LSLinkInfinity(0xffff) to
advertise an OSPF link as unreachable.
Stub Router Advertisement (RFC 6987) defines MaxLinkMetric (0xffff)
to indicate a router-LSA link should not be used for transit traffic.
This document updates RFC 6987 and RFC 8770. When an OSPFv2 router
supports the Unreachable Link support capability defined in this
document, the OSPFv2 stub router MaxLinkMetric(0xffff) MUST be
updated to MaxReachableLinkMetric(0xfffe).
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-07.html
A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-ietf-lsr-ospf-ls-link-infinity-07
Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts
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