Appendix A Understanding SNMP

WHAT IS SNMP?

The term SNMP broadly refers to the message protocols used to exchange information between the network and the managed devices, as well as to the structure of net- work management databases.

SNMP came about as local area network (LAN) environ- ments became standardized over the past ten years and multi-vendor equipment grew with competition. It be- came necessary to manage the various vendor equipment from a single control console. Thus, the SNMP emerged as the standard for managing commercial TCP/IP net- works.

Basic Components of SNMP

SNMP has three basic components: Network Manager,

Agent, and MIB.

Network Manager

This is a control program that collects, controls, and pre- sents data pertinent to the operation of the network devices. It resides on a network management station.

Agent

This is a control program that responds to queries and commands from the network manager and returns requested information or invokes configuration changes initiated by the manager. It resides in each network device.

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ADTRAN TDU 120e user manual Appendix a Understanding Snmp, What is SNMP?, Basic Components of Snmp, Network Manager, Agent