Definitions of Managed Objects for Bridges
RFC 4188

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Network Working Group                                    K. Norseth, Ed.
Request for Comments: 4188                            L-3 Communications
Obsoletes: 1493                                             E. Bell, Ed.
Category: Standards Track                            3Com Europe Limited
                                                          September 2005

               Definitions of Managed Objects for Bridges

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 (2005).

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 MAC bridges based on
   the IEEE 802.1D-1998 standard between Local Area Network (LAN)
   segments.  Provisions are made for the support of transparent
   bridging.  Provisions are also made so that these objects apply to
   bridges connected by subnetworks other than LAN segments.

   The MIB module presented in this memo is a translation of the
   BRIDGE-MIB defined in RFC 1493 to the SMIv2 syntax.

   This memo obsoletes RFC 1493.

Norseth & Bell, Eds.        Standards Track                     [Page 1]
RFC 4188                       Bridge MIB                 September 2005

Table of Contents

   1. The Internet-Standard Management Framework ......................2
   2. Conventions .....................................................2
   3. Overview ........................................................3
      3.1. Structure of the MIB Module ................................3
           3.1.1. The dot1dBase Subtree ...............................6
           3.1.2. The dot1dStp Subtree ................................6
           3.1.3. The dot1dSr Subtree .................................6
           3.1.4. The dot1dTp Subtree .................................6
           3.1.5. The dot1dStatic Subtree .............................6
      3.2. Relationship to Other MIB Modules ..........................6
           3.2.1. Relationship to the SNMPv2-MIB ......................7
           3.2.2. Relationship to the IF-MIB ..........................7
   4. Definitions .....................................................8
   5. IANA Considerations ............................................39
   6. Security Considerations ........................................39
   7. Acknowledgements ...............................................40
   8. Contact Information ............................................41
   9. Changes from RFC 1493 ..........................................42
   10. References ....................................................42
      10.1. Normative References .....................................42
      10.2. Informative References ...................................43

1.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [RFC3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580].

2.  Conventions

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL", when they appear in this document, are to be interpreted
   as described in BCP 14, RFC 2119 [RFC2119].

Norseth & Bell, Eds.        Standards Track                     [Page 2]
RFC 4188                       Bridge MIB                 September 2005

3.  Overview

   A common device present in many networks is the Bridge.  This device
   is used to connect Local Area Network segments below the network
   layer.

   There are two major modes defined for this bridging: transparent and
   source route.  The transparent method of bridging is defined in the
   IEEE 802.1D specification [IEEE8021D].  This memo defines those
   objects needed for the management of a bridging entity that operates
   in the transparent mode, as well as some objects that apply to all
   types of bridges.

   To be consistent with IAB directives and good engineering practices,