Concise MIB definitions
RFC 1212

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Network Working Group                                           M. Rose
Request for Comments: 1212            Performance Systems International
                                                          K. McCloghrie
                                                     Hughes LAN Systems
                                                                Editors
                                                             March 1991

                        Concise MIB Definitions
Status of this Memo

   This memo defines a format for producing MIB modules.  This RFC
   specifies an IAB standards track document 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.

Table of Contents

   1. Abstract..............................................    2
   2. Historical Perspective ...............................    2
   3. Columnar Objects .....................................    3
   3.1 Row Deletion ........................................    4
   3.2 Row Addition ........................................    4
   4. Defining Objects .....................................    5
   4.1 Mapping of the OBJECT-TYPE macro ....................    7
   4.1.1 Mapping of the SYNTAX clause ......................    7
   4.1.2 Mapping of the ACCESS clause ......................    8
   4.1.3 Mapping of the STATUS clause ......................    8
   4.1.4 Mapping of the DESCRIPTION clause .................    8
   4.1.5 Mapping of the REFERENCE clause ...................    8
   4.1.6 Mapping of the INDEX clause .......................    8
   4.1.7 Mapping of the DEFVAL clause ......................   10
   4.1.8 Mapping of the OBJECT-TYPE value ..................   11
   4.2 Usage Example .......................................   11
   5. Appendix: DE-osifying MIBs ...........................   13
   5.1 Managed Object Mapping ..............................   14
   5.1.1 Mapping to the SYNTAX clause ......................   15
   5.1.2 Mapping to the ACCESS clause ......................   15
   5.1.3 Mapping to the STATUS clause ......................   15
   5.1.4 Mapping to the DESCRIPTION clause .................   15
   5.1.5 Mapping to the REFERENCE clause ...................   16
   5.1.6 Mapping to the INDEX clause .......................   16
   5.1.7 Mapping to the DEFVAL clause ......................   16
   5.2 Action Mapping ......................................   16
   5.2.1 Mapping to the SYNTAX clause ......................   16
   5.2.2 Mapping to the ACCESS clause ......................   16

SNMP Working Group                                              [Page 1]
RFC 1212                Concise MIB Definitions               March 1991

   5.2.3 Mapping to the STATUS clause ......................   16
   5.2.4 Mapping to the DESCRIPTION clause .................   16
   5.2.5 Mapping to the REFERENCE clause ...................   16
   6. Acknowledgements .....................................   17
   7. References ...........................................   18
   8. Security Considerations...............................   19
   9. Authors' Addresses....................................   19

1.  Abstract

   This memo describes a straight-forward approach toward producing
   concise, yet descriptive, MIB modules.  It is intended that all
   future MIB modules be written in this format.

2.  Historical Perspective

   As reported in RFC 1052, IAB Recommendations for the Development of
   Internet Network Management Standards [1], a two-prong strategy for
   network management of TCP/IP-based internets was undertaken.  In the
   short-term, the Simple Network Management Protocol (SNMP), defined in
   RFC 1067, was to be used to manage nodes in the Internet community.
   In the long-term, the use of the OSI network management framework was
   to be examined.  Two documents were produced to define the management
   information: RFC 1065, which defined the Structure of Management
   Information (SMI), and RFC 1066, which defined the Management
   Information Base (MIB).  Both of these documents were designed so as
   to be compatible with both the SNMP and the OSI network management
   framework.

   This strategy was quite successful in the short-term: Internet-based
   network management technology was fielded, by both the research and
   commercial communities, within a few months.  As a result of this,
   portions of the Internet community became network manageable in a
   timely fashion.

   As reported in RFC 1109, Report of the Second Ad Hoc Network
   Management Review Group [2], the requirements of the SNMP and the OSI
   network management frameworks were more different than anticipated.
   As such, the requirement for compatibility between the SMI/MIB and
   both frameworks was suspended.  This action permitted the operational