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rfc:rfc6547

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.

George Informational [Page 1] 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.

George Informational [Page 2] 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: wesley.george@twcable.com

George Informational [Page 3]

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