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 [RFC1643], "Definitions of Managed Objects for the
  Ethernet-like Interface Types", and its SMIv2 equivalent, RFC 1650
  [RFC1650], 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 [RFC2358] [RFC2665] [RFC2666] [RFC3635].
  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 [RFC2239] [RFC2668] [RFC3636] as well.










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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 [RFC3635] and RFC 2666 [RFC2666],
  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 [RFC2020] 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 [RFC2358], RFC 2665 [RFC2665], and RFC 3635 [RFC3635] 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 [RFC2720] 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.



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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

  [RFC1643]   Kastenholz, F., "Definitions of Managed Objects for the
              Ethernet-like Interface Types", STD 50, RFC 1643, July
              1994.

  [RFC1650]   Kastenholz, F., "Definitions of Managed Objects for the
              Ethernet-like Interface Types using SMIv2", RFC 1650,
              August 1994.

  [RFC2020]   Flick, J., "IEEE 802.12 Interface MIB", RFC 2020, October
              1996.

  [RFC2239]   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.

  [RFC2358]   Flick, J. and J. Johnson, "Definitions of Managed Objects
              for the Ethernet-like Interface Types", RFC 2358, June
              1998.

  [RFC2665]   Flick, J. and J. Johnson, "Definitions of Managed Objects
              for the Ethernet-like Interface Types", RFC 2665, August
              1999.

  [RFC2666]   Flick, J., "Definitions of Object Identifiers for
              Identifying Ethernet Chip Sets", RFC 2666, August 1999.

  [RFC2668]   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.

  [RFC2720]   Brownlee, N., "Traffic Flow Measurement: Meter MIB", RFC
              2720, October 1999.

  [RFC3635]   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


  [RFC3636]   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: [email protected]


  C. M. Heard
  600 Rainbow Dr. #141
  Mountain View, CA 94041-2542
  USA

  Phone: +1 650 964 8391
  EMail: [email protected]



























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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.



















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