Explain the function of network management system information model and its components-structure of management information smi and management information base mib?

Answer 1

A management information base (MIB) is a type of database used to manage the devices in a communications network. It comprises a collection of objects in a (virtual) database used to manage entities (such as routers and switches) in a network. The database is tree-structured and entries are addressed through http://www.answers.com/topic/object-identifier. Objects in the MIB are defined using "Structure of Management Information". The software that performs the parsing is a MIB compiler.Examples of MIB objects include: · output queue length, which has the name ifOutQLen · Address Translation table (like http://www.answers.com/topic/address-resolution-protocol tables) called atTable. MIBs are periodically updated to add new functionality, remove ambiguities and to fix defects.Simple Network Management Protocol (http://www.answers.com/topic/simple-network-management-protocol), a communication protocol between management stations, such as consoles, and managed objects (MIB objects), such as routers, gateways, and switches, makes use of MIBs. Components controlled by the management console need a so-called SNMP agent - a software module that can communicate with the SNMP manager. SNMP uses a specified set of commands and queries. A MIB should contain information on these commands and on the target objects (controllable entities or potential sources of status information) with a view to tuning the network transport to the current needs.