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What is MIB and OIDs?

Management Information Base (MIB):
•       A MIB is a collection of “managed objects” which contain information.

•       A MIB defines the variables that reside in a managed node,Defined according to SMI (Structure of Management information) rules,Each managed object is described using an object identifier defined in the SMI.

•       MIB I: 114 standard objects, Objects included are considered essential for either fault or configuration management.

•       MIB II: 185 objects defined

•       Other standard MIB
Some Common MIB’s interface MIB(RFC 1907), interface MIB(RFC2233), IP MIB(RFC4293), TCP MIB(4022).


MIBs – Object Identifiers:
              Each managed object within a MIB has a unique object identifier.  SNMP uses these object identifiers to identify the MIB variables to retrieve or modify.  Objects that are in the public domain are described in MIBs introduced in Request for Comments (RFCs).

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