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Management information base
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<p>A management information base (MIB) is a database used for managing the entities in a <a href="/facts/Communication_network/NFCX0STS">communication network</a>. Most often associated with the <a href="/facts/Simple_Network_Management_Protocol/UNYPVA1C">Simple Network Management Protocol</a> (SNMP), the term is also used more generically in contexts such as in <a href="/facts/Open_Systems_Interconnection/oxN9Xhjz">OSI</a>/<a href="/facts/ISO/IacYR7Yg">ISO</a> <a href="/facts/Network_management_model/dQHzMKeT">Network management model</a>. While intended to refer to the complete collection of management information available on an entity, it is often used to refer to a particular subset, more correctly referred to as MIB-module. </p><p>Objects in the MIB are defined using a subset of Abstract Syntax Notation One (<a href="/facts/ASN.1/ryUN7doc">ASN.1</a>) called "Structure of Management Information Version 2 (SMIv2)" <a href="/facts/RFC_(identifier)/esftTvE7">RFC</a> <a href="https://datatracker.ietf.org/doc/html/rfc2578">2578</a>. The software that performs the parsing is a MIB compiler. </p><p>The database is hierarchical (tree-structured) and each entry is addressed through an <a href="/facts/Object_identifier/wEC9ubWd">object identifier</a> (OID). <a href="/facts/Internet/Xw1rVvJU">Internet</a> documentation <a href="/facts/Request_for_Comments/esftTvE7">RFCs</a> discuss MIBs, notably <a href="/facts/RFC_(identifier)/esftTvE7">RFC</a> <a href="https://datatracker.ietf.org/doc/html/rfc1155">1155</a>, "Structure and Identification of Management Information for <a href="/facts/TCP/IP/KNkxtSpw">TCP/IP</a> based internets", and its two companions, <a href="/facts/RFC_(identifier)/esftTvE7">RFC</a> <a href="https://datatracker.ietf.org/doc/html/rfc1213">1213</a>, "Management Information Base for Network Management of TCP/IP-based internets", and <a href="/facts/RFC_(identifier)/esftTvE7">RFC</a> <a href="https://datatracker.ietf.org/doc/html/rfc1157">1157</a>, "A Simple Network Management Protocol". </p>