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IETF RFC 5125
Reclassification of RFC 3525 to Historic
Last modified on Wednesday, February 6th, 2008
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Network Working Group T. Taylor
Request for Comments: 5125 Nortel
Obsoletes: 3525 February 2008
Category: Informational
Reclassification of RFC 3525 to Historic
 Status of This Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Abstract
This document reclassifies RFC 3525, Gateway Control Protocol Version
1, to Historic Status. This memo also obsoletes RFC 3525.
1. Introduction
The purpose of this document is to reclassify RFC 3525, Gateway
Control Protocol Version 1, to Historic Status.
2. Reclassification of RFC 3525 to Historic
The protocol defined by RFC 3525 [RFC 3525] was developed jointly by
the IETF Megaco Working Group and ITU-T Study Group 16. The ITU-T
published ITU-T Recommendation H.248.1 (originally H.248) with the
same contents as RFC 3525. Since that initial development, the ITU-T
has taken ownership of the protocol and has continued to work on it.
The protocol as originally defined in RFC 3525 underwent a series of
corrections and clarifications. H.248.1 version 1 [h248v1] was
republished in March, 2002, incorporating all changes agreed upon up
to that date. Since then, further corrections have been agreed upon.
The accumulated set of corrections to H.248.1 (03/2002) is available
in the Implementors' Guide for Recommendation H.248.1 Version 1 (03/
2002) ("Media Gateway Control Protocol") [impgdv1], which is
available at no charge on the ITU-T web site.
RFC 3525 has been rendered even more obsolete as a specification of
the Megaco/H.248 protocol by the publication of further versions of
ITU-T Recommendation H.248.1. Version 2 [h248v2] was published in
May, 2002, and is the version most widely deployed at present. It is
also the version that other standards bodies such as 3GPP are
currently using as the basis for their own profile specifications.
Version 3 [h248v3] was published more recently, in September, 2005.
Taylor Informational PAGE 1 
RFC 5125 RFC 3525 to Historic February 2008
In short, RFC 3525 may serve as an introduction to the Megaco/H.248
protocol, but it is misleading as a description of the protocol as
currently standardized or deployed. It is appropriate to reclassify
RFC 3525 to Historic status, as described in RFC 2026 [RFC 2026].
3. Security Considerations
Reclassifying RFC 3525 has no security implications.
4. IANA Considerations
This document does not require any new actions by the IANA. The IANA
registries established by RFC 3525 and extended by successive
versions of ITU-T H.248.1 remain in force, along with the requirement
for expert review by an IESG-designated expert.
5. References
5.1. Normative References
[RFC 2026] Bradner, S., "The Internet Standards Process -- Revision
3", BCP 9, RFC 2026, October 1996.
[RFC 3525] Groves, C., Ed., Pantaleo, M., Ed., Anderson, T., Ed., and
T. Taylor, Ed., "Gateway Control Protocol Version 1", RFC
3525, June 2003.
5.2. Informative References
[h248v1] International Telecommunication Union, "Gateway control
protocol: Version 1", ITU-T Recommendation H.248.1, March
2002.
[h248v2] International Telecommunication Union, "Gateway control
protocol: Version 2", ITU-T Recommendation H.248.1, May
2002.
[h248v3] International Telecommunication Union, "Gateway control
protocol: Version 3", ITU-T Recommendation H.248.1,
September 2005.
[impgdv1] International Telecommunication Union, "Implementors'
Guide for Recommendation H.248.1 Version 1 (03/2002)
("Media Gateway Control Protocol")", ITU-T Recommendation
H.248.1, April 2006.
Taylor Informational PAGE 2
RFC 5125 RFC 3525 to Historic February 2008
Author's Address
Tom Taylor
Nortel
1852 Lorraine Ave
Ottawa, Ontario K1H 6Z8
Canada
EMail: taylor@nortel.com
Taylor Informational PAGE 3
RFC 5125 RFC 3525 to Historic February 2008
Full Copyright Statement
Copyright © The IETF Trust (2008).
This document is subject to the rights, licenses and restrictions
contained in BCP 78, and except as set forth therein, the authors
retain all their rights.
This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND
THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF
THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
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Taylor Informational PAGE 4
Reclassification of RFC 3525 to Historic
RFC TOTAL SIZE: 6646 bytes
PUBLICATION DATE: Wednesday, February 6th, 2008
LEGAL RIGHTS: The IETF Trust (see BCP 78)
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