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Internet Engineering Task Force (IETF)                        J. ScudderRequest for Comments: 6938                              Juniper NetworksCategory: Standards Track                                       May 2013ISSN: 2070-1721Deprecation of BGP Path Attributes: DPA, ADVERTISER,and RCID_PATH / CLUSTER_IDAbstract   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 inSection 2 of RFC 5741.   Information about the current status of this document, any errata,   and how to provide feedback on it may be obtained athttp://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 toBCP 78 and the IETF Trust's Legal   Provisions Relating to IETF Documents   (http://trustee.ietf.org/license-info) in effect on the date of   publication of this document.  Please review these documents   carefully, as they describe your rights and restrictions with respect   to this document.  Code Components extracted from this document must   include Simplified BSD License text as described in Section 4.e of   the Trust Legal Provisions and are provided without warranty as   described in the Simplified BSD License.Scudder                      Standards Track                    [Page 1]

RFC 6938                Deprecation of DPA et al.               May 20131.  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 ofRFC 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.Scudder                      Standards Track                    [Page 2]

RFC 6938                Deprecation of DPA et al.               May 2013Author's Address   John Scudder   Juniper Networks   1194 N. Mathilda Ave.   Sunnyvale, CA  94089   USA   EMail: jgs@juniper.netScudder                      Standards Track                    [Page 3]