Entity MIB (Version 2)
RFC 2737

Document Type RFC - Proposed Standard (December 1999; Errata)
Obsoleted by RFC 4133
Obsoletes RFC 2037
Last updated 2013-03-02
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Network Working Group                                      K. McCloghrie
Request for Comments: 2737                           Cisco Systems, Inc.
Obsoletes: 2037                                               A. Bierman
                                                     Cisco Systems, Inc.
                                                           December 1999

                         Entity MIB (Version 2)

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

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

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   In particular, it describes managed objects used for managing
   multiple logical and physical entities managed by a single SNMP
   agent.

Table of Contents

   1 The SNMP Management Framework ...............................    2
   2 Overview ....................................................    3
   2.1 Terms .....................................................    4
   2.2 Relationship to Community Strings .........................    5
   2.3 Relationship to SNMP Contexts .............................    5
   2.4 Relationship to Proxy Mechanisms ..........................    6
   2.5 Relationship to a Chassis MIB .............................    6
   2.6 Relationship to the Interfaces MIB ........................    6
   2.7 Relationship to the Other MIBs ............................    7
   2.8 Relationship to Naming Scopes .............................    7
   2.9 Multiple Instances of the Entity MIB ......................    7
   2.10 Re-Configuration of Entities .............................    8
   2.11 Textual Convention Change ................................    8
   2.12 MIB Structure ............................................    8
   2.12.1 entityPhysical Group ...................................    9
   2.12.2 entityLogical Group ....................................   10
   2.12.3 entityMapping Group ....................................   10

McCloghrie & Bierman        Standards Track                     [Page 1]
RFC 2737                 Entity MIB (Version 2)            December 1999

   2.12.4 entityGeneral Group ....................................   11
   2.12.5 entityNotifications Group ..............................   11
   2.13 Multiple Agents ..........................................   11
   2.14 Changes Since RFC 2037 ...................................   11
   2.14.1 Textual Conventions ....................................   11
   2.14.2 New entPhysicalTable Objects ...........................   12
   2.14.3 New entLogicalTable Objects ............................   12
   2.14.4 Bugfixes ...............................................   12
   3 Definitions .................................................   13
   4 Usage Examples ..............................................   38
   4.1 Router/Bridge .............................................   38
   4.2 Repeaters .................................................   44
   5 Intellectual Property .......................................   51
   6 Acknowledgements ............................................   51
   7 References ..................................................   51
   8 Security Considerations .....................................   53
   9 Authors' Addresses ..........................................   55
   10 Full Copyright Statement ...................................   56

1.  The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

   o  An overall architecture, described in RFC 2571 [RFC2571].

   o  Mechanisms for describing and naming objects and events for the
      purpose of management. The first version of this Structure of
      Management Information (SMI) is called SMIv1 and described in STD
      16, RFC 1155 [RFC1155], STD 16, RFC 1212 [RFC1212] and RFC 1215
      [RFC1215].  The second version, called SMIv2, is described in STD
      58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC
      2580 [RFC2580].

   o  Message protocols for transferring management information. The
      first version of the SNMP message protocol is called SNMPv1 and
      described in STD 15, RFC 1157 [RFC1157]. A second version of the
      SNMP message protocol, which is not an Internet standards track
      protocol, is called SNMPv2c and described in RFC 1901 [RFC1901]
      and RFC 1906 [RFC1906]. The third version of the message protocol
      is called SNMPv3 and described in RFC 1906 [RFC1906], RFC 2572
      [RFC2572] and RFC 2574 [RFC2574].
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