RFC 4970

Extensions to OSPF for Advertising Optional Router Capabilities, July 2007

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Obsoleted by:
RFC 7770
A. Lindem, Ed.
N. Shen
JP. Vasseur
R. Aggarwal
S. Shaffer
ospf (rtg)

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DOI:  10.17487/RFC4970

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It is useful for routers in an OSPFv2 or OSPFv3 routing domain to know the capabilities of their neighbors and other routers in the routing domain. This document proposes extensions to OSPFv2 and OSPFv3 for advertising optional router capabilities. A new Router Information (RI) Link State Advertisement (LSA) is proposed for this purpose. In OSPFv2, the RI LSA will be implemented with a new opaque LSA type ID. In OSPFv3, the RI LSA will be implemented with a new LSA type function code. In both protocols, the RI LSA can be advertised at any of the defined flooding scopes (link, area, or autonomous system (AS)). [STANDARDS-TRACK]

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.

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