management information base (MIB)
A management information base (MIB) is a formal description of a set of network objects that can
be managed using the Simple Network Management Protocol (SNMP). The format of the MIB is defined as
part of the SNMP. (All other MIBs are extensions of this basic management information base.) MIB-I
refers to the initial MIB definition; MIB-II refers to the current definition. SNMPv2 includes
MIB-II and adds some new objects.
There are MIBs (or more accurately, MIB extensions) for each set of related network entities
that can be managed. For example, there are MIB definitions specified in the form of Requests for
Comments (RFCs) for AppleTalk,
domain name system (DNS), Fiber Distributed-Data Interface, and RS-232C
network objects. Product developers can create and register new MIB extensions. Companies that have
created MIB extensions for their sets of products include Cisco, Fore, IBM, Novell, QMS, and
Onramp.
Contributor(s): Jake Hoster and Krishnaraj Pandian
This was last updated in April 2005
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