module20-snmp

module20-snmp - SNMP Simple Network Management Protocol...

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SNMP Simple Network Management Protocol
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Simple Network Management Protocol SNMP is a framework that provides facilities for managing and monitoring network resources on the Internet. Components of SNMP: SNMP agents SNMP managers Management Information Bases (MIBs) SNMP protocol itself SNMP agent SNMP manager SNMP agent SNMP agent SNMP protocol messages
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Simple Network Management Protocol SNMP agent is software that runs on a piece of network equipment (host, router, printer, or others) and that maintains information about its configuration and current state in a database Information in the database is described by Management Information Bases (MIBs) An SNMP manager is an application program that contacts an SNMP agent to query or modify the database at the agent. SNMP protocol is the application layer protocol used by SNMP agents and managers to send and receive data.
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SNMP Interactions in SNMP IP UDP SNMP SNMP Manager Process Queries Replies Traps IP UDP SNMP SNMP Agent Process Access objects Data IP Network Management Station SNMP messages Managed System MIB
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MIBS A MIB specifies the managed objects MIB is a text file that describes managed objects using the syntax of ASN.1 (Abstract Syntax Notation 1) ASN.1 is a formal language for describing data and its properties In Linux, MIB files are in the directory /usr/share/snmp/mibs Multiple MIB files MIB-II (defined in RFC 1213) defines the managed objects of TCP/IP networks
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Managed Objects Each managed object is assigned an
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module20-snmp - SNMP Simple Network Management Protocol...

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