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Extensions to OSPF for Advertising Optional Router Capabilities (RFC7770)

IP.com Disclosure Number: IPCOM000245111D
Original Publication Date: 2016-Feb-01
Included in the Prior Art Database: 2016-Feb-09
Document File: 30 page(s) / 33K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

A. Lindem: AUTHOR [+6]

Abstract

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.

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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

Abstract

   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.

Lindem, et al.               Standards Track                    [Page 1]
 RFC 7770               OSPF Capability Extensions          February 2016

 Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the    document authors.  All rights...