RFC 6938 PROPOSED STANDARD BGP · IANA

Deprecation of BGP Path Attributes: DPA, ADVERTISER, and RCID_PATH / CLUSTER_ID

IANA deprecates three unused BGP path attribute values.

On rfc-editor.org ↗
PUBLISHED
May 2013
AUTHORS
J. Scudder
STREAM
IETF
DOI
10.17487/RFC6938

RFC text

Contents
Original text · RFC Editor View on rfc-editor.org ↗
Internet Engineering Task Force (IETF)                        J. Scudder
Request for Comments: 6938                              Juniper Networks
Category: Standards Track                                       May 2013
ISSN: 2070-1721


          Deprecation of BGP Path Attributes: DPA, ADVERTISER,
                       and RCID_PATH / CLUSTER_ID

Abstract

   This document requests IANA to deprecate the following BGP path
   attributes: DPA, ADVERTISER, and RCID_PATH / CLUSTER_ID, associated
   with an abandoned Internet-Draft and a Historic RFC.

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/rfc6938.

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   described in the Simplified BSD License.

1.  Introduction

   As of this writing, the BGP Path Attributes registry maintained by
   IANA contains entries for DPA, ADVERTISER, and RCID_PATH /
   CLUSTER_ID.  The first of these is associated with [BGPDPA], an
   Internet-Draft that was abandoned in 1996.  The latter are associated
   with [RFC1863], an RFC that was reclassified as Historic by [RFC4223]
   in 2005.  Neither specification is currently in use, nor have they
   ever been.

   Note that the deprecated CLUSTER_ID is distinct from CLUSTER_LIST
   [RFC4456].  CLUSTER_LIST is not being deprecated.

2.  IANA Considerations

   Per this document, IANA has marked the BGP Path Attributes registry
   entries for DPA (Value 11), ADVERTISER (Value 12), and RCID_PATH /
   CLUSTER_ID (Value 13) as "deprecated".

3.  Security Considerations

   There are no meaningful security consequences arising from this
   registry update.

4.  Informative References

   [BGPDPA]   Chen, E. and T. Bates, "Destination Preference Attribute
              for BGP", Work in Progress, March 1996.

   [RFC1863]  Haskin, D., "A BGP/IDRP Route Server alternative to a full
              mesh routing", RFC 1863, October 1995.

   [RFC4223]  Savola, P., "Reclassification of RFC 1863 to Historic",
              RFC 4223, October 2005.

   [RFC4456]  Bates, T., Chen, E., and R. Chandra, "BGP Route
              Reflection: An Alternative to Full Mesh Internal BGP
              (IBGP)", RFC 4456, April 2006.

Author's Address

   John Scudder
   Juniper Networks
   1194 N. Mathilda Ave.
   Sunnyvale, CA  94089
   USA

   EMail: jgs@juniper.net

ISO Plain Language

On this page
PROBLEMThe IANA BGP Path Attributes registry included attributes associated with an abandoned Internet-Draft and a Historic RFC.
MECHANISMIANA marks DPA (11), ADVERTISER (12), and RCID_PATH / CLUSTER_ID (13) as deprecated.
THE DISTINCTIONThe RFC explicitly distinguishes CLUSTER_ID from CLUSTER_LIST; CLUSTER_LIST is not deprecated.

§1Attributes to Deprecate

The BGP Path Attributes registry contained DPA, ADVERTISER, and RCID_PATH / CLUSTER_ID. DPA was associated with an Internet-Draft abandoned in 1996; the other attributes were associated with RFC 1863, which RFC 4223 reclassified as Historic. RFC 6938 states that neither specification was in use at the time, nor had they ever been.

Three registry entries came from work that was abandoned or later classified as Historic. The RFC says neither specification had been used.

§2Registry Changes

IANA marked DPA, value 11; ADVERTISER, value 12; and RCID_PATH / CLUSTER_ID, value 13, as deprecated in the BGP Path Attributes registry. The RFC makes clear that this CLUSTER_ID is distinct from CLUSTER_LIST, which is not being deprecated.

IANA marks values 11, 12, and 13 as deprecated. CLUSTER_LIST is a different attribute and remains outside this change.

§3Security Considerations

The RFC says that no meaningful security consequences arise from this registry update. It changes the status of the three named entries in the BGP Path Attributes registry.

The RFC says the registry update has no meaningful security consequences.