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+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
+   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.
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+Scudder                      Standards Track                    [Page 1]
+
+RFC 6938                Deprecation of DPA et al.               May 2013
+
+
+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.
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+Scudder                      Standards Track                    [Page 2]
+
+RFC 6938                Deprecation of DPA et al.               May 2013
+
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+Author's Address
+
+   John Scudder
+   Juniper Networks
+   1194 N. Mathilda Ave.
+   Sunnyvale, CA  94089
+   USA
+
+   EMail: jgs@juniper.net
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+Scudder                      Standards Track                    [Page 3]
+