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OSPFv2 Prefix/Link Attribute Advertisement (RFC7684)

IP.com Disclosure Number: IPCOM000245038D
Original Publication Date: 2015-Nov-01
Included in the Prior Art Database: 2016-Feb-06
Document File: 30 page(s) / 33K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

P. Psenak: AUTHOR [+6]

Abstract

OSPFv2 requires functional extension beyond what can readily be done with the fixed-format Link State Advertisements (LSAs) as described in RFC 2328 [OSPFV2]. This document defines OSPFv2 Opaque LSAs based on Type-Length-Value (TLV) tuples that can be used to associate additional attributes with prefixes or links. Depending on the application, these prefixes and links may or may not be advertised in the fixed-format LSAs. The OSPFv2 Opaque LSAs are optional and fully backward compatible. This is in contrast to the approach taken in OSPFv3 [OSPFv3-EXTEND] where the existing LSAs will be replaced by TLV-based extended LSAs.

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Internet Engineering Task Force (IETF)                         P. Psenak Request for Comments: 7684                                 Cisco Systems Category: Standards Track                                     H. Gredler ISSN: 2070-1721                                              Independent                                                                R. Shakir                                                Jive Communications, Inc.                                                            W. Henderickx                                                           Alcatel-Lucent                                                              J. Tantsura                                                                 Ericsson                                                                A. Lindem                                                            Cisco Systems                                                            November 2015

                OSPFv2 Prefix/Link Attribute Advertisement

Abstract

   OSPFv2 requires functional extension beyond what can readily be done    with the fixed-format Link State Advertisements (LSAs) as described    in RFC 2328.  This document defines OSPFv2 Opaque LSAs based on Type-    Length-Value (TLV) tuples that can be used to associate additional    attributes with prefixes or links.  Depending on the application,    these prefixes and links may or may not be advertised in the fixed-    format LSAs.  The OSPFv2 Opaque LSAs are optional and fully backward    compatible.

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/rfc7684.

 Psenak, et al.               Standards Track                    [Page 1]
 RFC 7684              OS...