Network Working Group                 Editors of this version:
Request for Comments: 2578                                 K. McCloghrie
STD: 58                                                    Cisco Systems
Obsoletes: 1902                                               D. Perkins
Category: Standards Track                                       SNMPinfo
                                                        J. Schoenwaelder
                                                         TU Braunschweig
                                      Authors of previous version:
                                                                 J. Case
                                                           SNMP Research
                                                           K. McCloghrie
                                                           Cisco Systems
                                                                 M. Rose
                                                  First Virtual Holdings
                                                           S. Waldbusser
                                          International Network Services
                                                              April 1999


         Structure of Management Information Version 2 (SMIv2)


Status of this Memo(RFC1661に同じ)

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.


1.  Introduction

   Management information is viewed as a collection of managed objects,
   residing in a virtual information store, termed the Management
   Information Base (MIB).  Collections of related objects are defined
   in MIB modules.  These modules are written using an adapted subset of
   OSI's Abstract Syntax Notation One, ASN.1 (1988) [1].  It is the
   purpose of this document, the Structure of Management Information
   (SMI), to define that adapted subset, and to assign a set of
   associated administrative values.

   The SMI is divided into three parts:  module definitions, object
   definitions, and, notification definitions.

(1)  Module definitions are used when describing information modules.
     An ASN.1 macro, MODULE-IDENTITY, is used to concisely convey the
     semantics of an information module.

(2)  Object definitions are used when describing managed objects.  An
     ASN.1 macro, OBJECT-TYPE, is used to concisely convey the syntax
     and semantics of a managed object.

(3)  Notification definitions are used when describing unsolicited
     transmissions of management information.  An ASN.1 macro,
     NOTIFICATION-TYPE, is used to concisely convey the syntax and
     semantics of a notification.

1.1.  A Note on Terminology(以下，略)

14.  References

[1]  Information processing systems - Open Systems Interconnection -
     Specification of Abstract Syntax Notation One (ASN.1),
     International Organization for Standardization.  International
     Standard 8824, (December, 1987).