Network Working Group                                       J. Reynolds
Request for Comments: 1239                                          ISI
Updates: RFCs 1229, 1230, 1231, 1232, 1233                    June 1991
           Reassignment of Experimental MIBs to Standard MIBs
Status of this Memo
   This RFC specifies an IAB standards track protocol for the Internet
   community, and requests discussion and suggestions for improvements.
   Please refer to the current edition of the "IAB Official Protocol
   Standards" for the standardization state and status of this protocol.
   Distribution of this memo is unlimited.
   In the past, MIBs have been assigned arcs in the experimental MIB
   namespace early in their development and then were not assigned arcs
   in the standard MIB namespace until they reached Full Standard
   status.  This practice required vendors to revise their
   implementations when a MIB went from Draft to Full Standard status,
   even though there was probably no substantive technical change in the
   definitions.  This practice could also engender operational problems
   in the field at an undesirably late stage of the standardization
   process.  It was also observed that this practice could discourage
   implementation until the Full Standard stage and that this, too,
   would be undesirable.  So, a preferable practice is to assign arcs in
   the standard MIB namespace at the earliest phase of standardization
   and to preserve these assignments as the standard progresses.
   This memo specifically updates:
      RFC 1229 - "Extensions to the Generic-Interface MIB"
      RFC 1230 - "IEEE 802.4 Token Bus MIB"
      RFC 1231 - "IEEE 802.5 Token Ring MIB"
      RFC 1232 - "Definitions of Managed Objects for the DS1 Interface
      RFC 1233 - "Definitions of Managed Objects for the DS3 Interface
   with new codes.  In the future, consult each MIB publication for new
   code assignments.
Reynolds                                                        [Page 1]

RFC 1239 Reassignment of Exp MIBs to Std MIBs June 1991 SMI Network Management Old Experimental Codes Prefix: (experimental) Decimal Name Description ------- ---- ----------- 2 T1-Carrier T1 Carrier Objects 4 IEEE802.5 Token Ring-like Objects 6 Interface Generic Interface Extension Objects 7 IEEE802.4 Token Bus-like Objects 15 DS3 DS3 Interface Type SMI Network Management New Standard Codes Prefix: (standard-mib) Decimal Name Description ------- ---- ----------- 12 Generic IF Generic Interface Extension Objects Prefix: (transmission) Decimal Name Description ------- ---- ----------- 8 IEEE802.4 Token Bus-like Objects 9 IEEE802.5 Token Ring-like Objects 18 DS1 T1 Carrier Objects 30 DS3 DS3 Interface Type Security Considerations Security issues are not discussed in this memo. Author's Address Joyce K. Reynolds USC/Information Sciences Institute 4676 Admiralty Way Marina del Rey, CA 90292-6695 Phone: (213) 822-1511 EMail: jkrey@isi.edu Reynolds [Page 2]

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