RFC 1493 (rfc1493) - Page 3 of 34
Definitions of Managed Objects for Bridges
Alternative Format: Original Text Document
RFC 1493 Bridge MIB July 1993
2.1. Format of Definitions
Section 5 contains the specification of all object types contained in
this MIB module. The object types are defined using the conventions
defined in the SMI, as amended by the extensions specified in [9,10].
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
draft IEEE 802.1d specification [11]. This memo defines those
objects needed for the management of a bridging entity operating in
the transparent mode, as well as some objects applicable to all types
of bridges.
To be consistent with IAB directives and good engineering practice,
an explicit attempt was made to keep this MIB as simple as possible.
This was accomplished by applying the following criteria to objects
proposed for inclusion:
(1) Start with a small set of essential objects and add only
as further objects are needed.
(2) Require objects be essential for either fault or
configuration management.
(3) Consider evidence of current use and/or utility.
(4) Limit the total of objects.
(5) Exclude objects which are simply derivable from others in
this or other MIBs.
(6) Avoid causing critical sections to be heavily
instrumented. The guideline that was followed is one
counter per critical section per layer.
3.1. Structure of MIB
Objects in this MIB are arranged into groups. Each group is
organized as a set of related objects. The overall structure and
assignment of objects to their groups is shown below. Where
appropriate the corresponding IEEE 802.1d [11] management object name
is also included.
Decker, Langille, Rijsinghani & McCloghrie