OSPFv2 Prefix/Link Attribute Advertisement
RFC 7684

Document Type RFC - Proposed Standard (November 2015; No errata)
Last updated 2015-11-24
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Stream WG state Submitted to IESG for Publication Dec 2015
Document shepherd Shraddha Hegde
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IESG IESG state RFC 7684 (Proposed Standard)
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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              OSPFv2 Prefix/Link Attributes        November 2015

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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   This document may contain material from IETF Documents or IETF
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   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1. Introduction ....................................................3
      1.1. Requirements Notation ......................................3
   2. OSPFv2 Extended Prefix Opaque LSA ...............................3
      2.1. OSPFv2 Extended Prefix TLV .................................5
   3. OSPFv2 Extended Link Opaque LSA .................................8
      3.1. OSPFv2 Extended Link TLV ...................................9
   4. Backward Compatibility .........................................10
   5. Security Considerations ........................................10
   6. IANA Considerations ............................................11
      6.1. OSPFv2 Extended Prefix Opaque LSA TLVs Registry ...........11
      6.2. OSPFv2 Extended Prefix TLV Sub-TLVs Registry ..............12
      6.3. OSPFv2 Extended Prefix TLV Flags Registry .................12
      6.4. OSPFv2 Extended Link Opaque LSA TLVs Registry .............12
      6.5. OSPFv2 Extended Link TLV Sub-TLVs Registry ................13
   7. References .....................................................13
      7.1. Normative References ......................................13
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