Simple network management protocol (SNMP)

- Simple network management protocol (SNMP) is framework for managing the devices in an internet using TCP/IP suit.
- Basically it provide the set of fundamental operation for monitoring and maintaining internet.
- Mainly SNMP uses concept of manager and agent.
- Generally manager i.e host controls and monitors a set of agent, usually routers.
SNMP protocol, computer network
- SNMP is an application level protocol in which a few manager stations controls the set of agents.
- The protocols is designed at the application level so that it can monitor devices made by different manufactures and installed on different physical network.
- A management station called as manager, runs the SNMP client program, in other way a managed station called as agent, runs the SNMP server program.
- A agent keeps performance information into an database and manager can access that database.
- In other words, SNMP is based on three basic ideas

i) Manager checks an agent by requesting an information that reflects the behavior of agent.
ii) Manager forces agent to do some task by resettling the values in the database.
iii) An agent contributes to the management process by warning the manager by unusual situation.

Role of SNMP
- SNMP has very specific role in networking management.
- It defined the format of the packet to be sent from manager to an agent and vice versa.
- It also interprets the result and create statistics.
- The packet exchange contain the object (variable) name and their status (values)
- SNMP is responsible for reading and exchanging these value.

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