In other way

SNMP is used in Network Management Systems(NMS) to monitor network-attached devices for conditions that warrant administrative attention. It consists of a set of standards for network management, including an Application Layer protocol, a database schema, and a set of data objects.

SNMP exposes management data in the form of variables on the managed systems, which describe the system configuration. These variables can then be queried (and sometimes set) by managing applications.

In typical SNMP usage, there are a number of systems to be managed, and one or more systems managing them. A software component called an agent runs on each managed system and reports information via SNMP to the managing systems.

There will be 2 things in SNMP design.

One is Manager and the other is Agent.
Manager will be a main station containing HP Open View or Netcool – Suite.

Agent would be SNMP software running on any client, which will be monitored by Manager.

The manager is usually a software program running on a workstation or larger computer that communicates with agent processes that run on each device being monitored. Agents can be found on switches, firewalls, servers, wireless access points, routers, hubs, and even users' workstations – the list goes on and on. As seen in the illustration, the manager polls the agents making requests for information, and the agents respond when asked with the information requested.

(Going to update with more abt SNMP...)

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