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Network Working Group                                           J. Flick
Request for Comments: 3638                       Hewlett-Packard Company
Obsoletes: 1643                                                 C. Heard
Category: Informational                                       Consultant
                                                          September 2003

            Applicability Statement for Reclassification of
                      RFC 1643 to Historic Status

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.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   This memo recommends that RFC 1643 be reclassified as an Historic
   document and provides the supporting motivation for that
   recommendation.

1.  Details

   STD 50, RFC 1643 [RFC 1643], "Definitions of Managed Objects for the
   Ethernet-like Interface Types", and its SMIv2 equivalent, RFC 1650
   [RFC 1650], are applicable to half-duplex 10 Mb/s Ethernet interfaces
   only.  Subsequent to the 1994 publication of these documents, 100
   Mb/s, 1000 Mb/s, and 10 Gb/s Ethernet interface types have been
   developed, and full-duplex operation at 10 Mb/s has been
   standardized.  Updates to RFC 1650 have been produced to accommodate
   these new technologies [RFC 2358] [RFC 2665] [RFC 2666] [RFC 3635].
   These updates define new MIB objects to supplement those defined in
   RFC 1643 and RFC 1650 and in addition deprecate some of the objects
   in RFC 1643 and RFC 1650 that are no longer considered useful.  They
   also levy a requirement for implementations of the EtherLike-MIB to
   support the MAU-MIB [RFC 2239] [RFC 2668] [RFC 3636] as well.

Flick & Heard                Informational                      [Page 1]
RFC 3638 RFC 1643 to Historic Status September 2003 RFC 1643 is an obsolete specification, overtaken by events. Its SMIv2 equivalent, RFC 1650, was officially retired in 1998. New implementations -- even those that support only half-duplex 10 Mb/s interfaces -- should comply with in the latest version of the specification, currently RFC 3635 [RFC 3635] and RFC 2666 [RFC 2666], instead of RFC 1643. It is therefore recommended that RFC 1643 be reclassified as an Historic document. 2. Effect on Other Standards Track Documents Reclassification of RFC 1643 will have no impact on the status of any standards track RFC because no standards track RFC cites it as a normative reference. An RFC content search made with the tools available at http://www.rfc-editor.org reveals the following standards track documents that cite RFC 1643: Document Title -------- ----- RFC 2020 IEEE 802.12 Interface MIB RFC 2358 Definitions of Managed Objects for the Ethernet-like Interface Types RFC 2665 Definitions of Managed Objects for the Ethernet-like Interface Types RFC 2720 Traffic Flow Measurement: Meter MIB RFC 3635 Definitions of Managed Objects for the Ethernet-like Interface Types RFC 2020 [RFC 2020] contains DOT12-IF-MIB, which is the MIB module for managing IEEE 802.12 100VG-AnyLAN interfaces. It refers to RFC 1643 in the context of an admonition not to implement the EtherLike-MIB for any interface where the DOT12-IF-MIB is implemented. RFC 2358 [RFC 2358], RFC 2665 [RFC 2665], and RFC 3635 [RFC 3635] all contain updated versions of the EtherLike-MIB. They refer to RFC 1643 in the context of explaining the history of the EtherLike-MIB, and the citation in RFC 3635 is explicitly listed as a non-normative reference. RFC 2720 [RFC 2720] contains the FLOW-METER-MIB. It refers to RFC 1643 only in an ASN.1 comment in the MIB module. Omission of that comment would not preclude correct implementation of the MIB module. Clearly, none of these citations are normative. Flick & Heard Informational [Page 2]
RFC 3638 RFC 1643 to Historic Status September 2003 3. Security Considerations Reclassification of RFC 1643 will not, in and of itself, have any effect on the security of the Internet. 4. Normative References [RFC 1643] Kastenholz, F., "Definitions of Managed Objects for the Ethernet-like Interface Types", STD 50, RFC 1643, July 1994. [RFC 1650] Kastenholz, F., "Definitions of Managed Objects for the Ethernet-like Interface Types using SMIv2", RFC 1650, August 1994. [RFC 2020] Flick, J., "IEEE 802.12 Interface MIB", RFC 2020, October 1996. [RFC 2239] de Graaf, K., Romascanu, D., McMaster, D., McCloghrie, K. and S. Roberts, "Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs) using SMIv2", RFC 2239, November 1997. [RFC 2358] Flick, J. and J. Johnson, "Definitions of Managed Objects for the Ethernet-like Interface Types", RFC 2358, June 1998. [RFC 2665] Flick, J. and J. Johnson, "Definitions of Managed Objects for the Ethernet-like Interface Types", RFC 2665, August 1999. [RFC 2666] Flick, J., "Definitions of Object Identifiers for Identifying Ethernet Chip Sets", RFC 2666, August 1999. [RFC 2668] Smith, A., Flick, J., deGraaf, K., Romascanu, D., McMaster, D., McCloghrie, K. and S. Roberts, "Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs)", RFC 2668, August 1999. [RFC 2720] Brownlee, N., "Traffic Flow Measurement: Meter MIB", RFC 2720, October 1999. [RFC 3635] Flick, J., "Definitions of Managed Objects for the Ethernet-like Interface Types", RFC 3635, September 2003. Flick & Heard Informational [Page 3]
RFC 3638 RFC 1643 to Historic Status September 2003 [RFC 3636] Flick, J., "Definitions of Managed Objects for IEEE 802.3 Medium Attachment Units (MAUs)", RFC 3636, September 2003. 5. Authors' Addresses John Flick Hewlett-Packard Company 8000 Foothills Blvd. M/S 5557 Roseville, CA 95747-5557 USA Phone: +1 916 785 4018 Fax: +1 916 785 1199 EMail: johnf@rose.hp.com C. M. Heard 600 Rainbow Dr. #141 Mountain View, CA 94041-2542 USA Phone: +1 650 964 8391 EMail: heard@pobox.com Flick & Heard Informational [Page 4]
RFC 3638 RFC 1643 to Historic Status September 2003 6. Full Copyright Statement Copyright (C) The Internet Society (2003). All Rights Reserved. This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English. The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assignees. This document and the information contained herein is provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIMS 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 WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society. Flick & Heard Informational [Page 5]