Definitions of Managed Objects for Bridges
RFC 1286

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Network Working Group                                          E. Decker
Request for Comments: 1286                           cisco Systems, Inc.
                                                             P. Langille
                                           Digital Equipment Corporation
                                                          A. Rijsinghani
                                           Digital Equipment Corporation
                                                           K. McCloghrie
                                                Hughes LAN Systems, Inc.
                                                           December 1991

               Definitions of Managed Objects for Bridges

Status of this Memo

   This memo is an extension to the SNMP MIB.  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.

Table of Contents

   1. Abstract .............................................    2
   2. The Network Management Framework......................    2
   3. Objects ..............................................    2
   3.1 Format of Definitions ...............................    3
   4. Overview .............................................    3
   4.1 Structure of MIB ....................................    4
   4.1.1 The dot1dBase Group ...............................    7
   4.1.2 The dot1dStp Group ................................    7
   4.1.3 The dot1dSr Group .................................    7
   4.1.4 The dot1dTp Group .................................    7
   4.1.5 The dot1dStatic Group .............................    7
   4.2 Relationship to Other MIBs ..........................    7
   4.2.1 Relationship to the 'system' group ................    8
   4.2.2 Relationship to the 'interfaces' group ............    8
   4.3 Textual Conventions .................................    9
   5. Definitions ..........................................    9
   5.1 Groups in the Bridge MIB ............................   11
   5.2 The dot1dBase Group Definitions .....................   11
   5.3 The dot1dStp Group Definitions ......................   14
   5.4 The dot1dSr Group Definitions .......................   22
   5.5 The dot1dTp Group Definitions .......................   28
   5.6 The dot1dStatic Group Definitions ...................   34
   5.8 Traps for use by Bridges ............................   36
   6. Acknowledgments ......................................   37

Decker, Langille, Rijsinghani & McCloghrie                      [Page 1]
RFC 1286                       Bridge MIB                  December 1991

   7. References ...........................................   38
   8. Security Considerations...............................   39
   9. Authors' Addresses....................................   40

1.  Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in TCP/IP based internets.
   In particular it defines objects for managing bridges based on the
   IEEE 802.1d draft standard between Local Area Network (LAN) segments.
   Provisions are made for support of transparent and source route
   bridging.  Provisions are also made so that these objects apply to
   bridges connected by subnetworks other than LAN segments.

2.  The Network Management Framework

   The Internet-standard Network Management Framework consists of three
   components.  They are:

      RFC 1155 which defines the SMI, the mechanisms used for describing
      and naming objects for the purpose of management.  RFC 1212
      defines a more concise description mechanism, which is wholly
      consistent with the SMI.

      RFC 1156 which defines MIB-I, the core set of managed objects for
      the Internet suite of protocols.  RFC 1213, defines MIB-II, an
      evolution of MIB-I based on implementation experience and new
      operational requirements.

      RFC 1157 which defines the SNMP, the protocol used for network
      access to managed objects.

   The Framework permits new objects to be defined for the purpose of
   experimentation and evaluation.

3.  Objects

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the subset of Abstract Syntax Notation One (ASN.1) [7]
   defined in the SMI.  In particular, each object has a name, a syntax,
   and an encoding.  The name is an object identifier, an
   administratively assigned name, which specifies an object type.  The
   object type together with an object instance serves to uniquely
   identify a specific instantiation of the object.  For human
   convenience, we often use a textual string, termed the OBJECT