Extensions to OSPF for Advertising Optional Router Capabilities (RFC7770)
Original Publication Date: 2016-Feb-01
Included in the Prior Art Database: 2016-Feb-09
Internet Society Requests For Comment (RFCs)
A. Lindem: AUTHOR [+5]
It is useful for routers in an OSPFv2 [OSPF] or OSPFv3 [OSPFv3] routing domain to know the capabilities of their neighbors and other routers in the routing domain. This can be useful for both the advertisement and discovery of OSPFv2 and OSPFv3 capabilities. Throughout this document, OSPF will be used when the specification is applicable to both OSPFv2 and OSPFv3. Similarly, OSPFv2 or OSPFv3 will be used when the text is protocol specific.
Internet Engineering Task Force (IETF) A. Lindem, Ed. Request for Comments: 7770 N. Shen Obsoletes: 4970 JP. Vasseur Category: Standards Track Cisco Systems ISSN: 2070-1721 R. Aggarwal Arktan S. Shaffer Akamai February 2016
Extensions to OSPF for Advertising Optional Router Capabilities
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. The Router Information (RI) Link State Advertisement (LSA) is defined for this purpose. In OSPFv2, the RI LSA will be implemented with an Opaque LSA type ID. In OSPFv3, the RI LSA will be implemented with a unique 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)). This document obsoletes RFC 4970 by providing a revised specification that includes support for advertisement of multiple instances of the RI LSA and a TLV for functional capabilities.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Further information on Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc7770.
al. Standards Track [Page 1]
RFC 7770 OSPF Capability Extensions February 2016
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