Internet Engineering Task Force (IETF)                         W. George
Request for Comments: 6547                             Time Warner Cable
Obsoletes: 3627                                            February 2012
Updates: 6164
Category: Informational
ISSN: 2070-1721


                     RFC 3627 to Historic Status

Abstract

  This document moves "Use of /127 Prefix Length Between Routers
  Considered Harmful" (RFC 3627) to Historic status to reflect the
  updated guidance contained in "Using 127-Bit IPv6 Prefixes on Inter-
  Router Links" (RFC 6164).  A Standards Track document supersedes an
  informational document; therefore, guidance provided in RFC 6164 is
  to be followed when the two documents are in conflict.  This document
  links the two RFCs so that the IETF's updated guidance on this topic
  is clearer.

Status of This Memo

  This document is not an Internet Standards Track specification; it is
  published for informational purposes.

  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).  Not all documents
  approved by the IESG are a candidate for any level of Internet
  Standard; see 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/rfc6547.















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RFC 6547                  RFC 3627 Is Historic             February 2012


Copyright Notice

  Copyright (c) 2012 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.

Table of Contents

  1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
  2.  Security Considerations . . . . . . . . . . . . . . . . . . . . 3
  3.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 3
  4.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 4
    4.1.  Normative References  . . . . . . . . . . . . . . . . . . . 4
    4.2.  Informative References  . . . . . . . . . . . . . . . . . . 4

1.  Introduction

  This document moves "Use of /127 Prefix Length Between Routers
  Considered Harmful" [RFC3627] to Historic status in accordance with
  RFC 2026 [RFC2026].  RFC 3627 has been superseded by "Using 127-Bit
  IPv6 Prefixes on Inter-Router Links" [RFC6164].  A Standards Track
  document supersedes an informational document; therefore, guidance
  provided in RFC 6164 is to be followed when the two documents are in
  conflict.  This may not have been clear to casual readers who are not
  familiar with the differences in IETF document types.  This document
  adds the necessary link between the two RFCs so that users referring
  to RFC 3627 for guidance will see that it has been obsoleted by
  updated guidance on the matter, thus hopefully eliminating any
  confusion that may be present.

2.  Security Considerations

  This document introduces no new security considerations.

3.  Acknowledgements

  Thanks to Brian Carpenter, Bob Hinden, and Ron Bonica for guidance on
  the matter, and to Pekka Savola and Miya Kohno and the other authors
  of 6164 for their support.



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RFC 6547                  RFC 3627 Is Historic             February 2012


4.  References

4.1.  Normative References

  [RFC3627]  Savola, P., "Use of /127 Prefix Length Between Routers
             Considered Harmful", RFC 3627, September 2003.

  [RFC6164]  Kohno, M., Nitzan, B., Bush, R., Matsuzaki, Y., Colitti,
             L., and T. Narten, "Using 127-Bit IPv6 Prefixes on Inter-
             Router Links", RFC 6164, April 2011.

4.2.  Informative References

  [RFC2026]  Bradner, S., "The Internet Standards Process -- Revision
             3", BCP 9, RFC 2026, October 1996.

Author's Address

  Wesley George
  Time Warner Cable
  13820 Sunrise Valley Drive
  Herndon, VA  20171
  US

  Phone: +1 703-561-2540
  EMail: [email protected]

























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