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Extensions to OSPF for Advertising Prefix/Link Administrative Tags

Document Type Replaced Internet-Draft (individual)
Expired & archived
Authors Acee Lindem , Peter Psenak
Last updated 2020-09-23
Replaced by draft-ietf-lsr-ospf-admin-tags
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-lsr-ospf-admin-tags
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


It is useful for routers in an OSPFv2 or OSPFv3 routing domain to be able to associate tags with prefixes and links. Previously, OSPFv2 and OSPFv3 were relegated to a single tag for AS External and Not-So- Stubby-Area (NSSA) prefixes. With the flexible encodings provided by OSPFv2 Prefix/Link Attribute Advertisement and OSPFv3 Extended LSAs, multiple administrative tags may advertised for all types of prefixes and links. These administrative tags can be used for many applications including route redistribution policy, selective prefix prioritization, selective IP Fast-ReRoute (IPFRR) prefix protection, and many others. The ISIS protocol supports a similar mechanism that is described in RFC 5130.


Acee Lindem
Peter Psenak

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)