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# 1.2.1.19 SNMP Module

SNMP is one of the key components of a Network Management System (NMS). SNMP is an application layer protocol that facilitates the exchange of management information among network devices. It is a part of the TCP/IP protocol suite.

SNMP is an Internet protocol that was originally designed to manage different network devices, such as file servers, hubs, routers and so on. It can also be used to manage and control an ever increasing number of small embedded systems connected to one another over any IP network. Systems can communicate with each other using SNMP to transfer control and status information, creating a truly distributed system.

SNMP is used in a variety of devices where remote monitoring and controlling of the network node is desired, such as a network printer, online Uninterrupted Power Supply (UPS), security cameras, home and industrial appliances monitor and control, automatic energy meter readings, etc.

Unlike more familiar human-oriented protocols, like HTTP, SNMP is considered a machine-to-machine protocol.

Note: The related application note, AN870 "SNMP V2c Agent for Microchip TCP/IP Stack" (DS8000870) is available for download from the Microchip web site at: http://ww1.microchip.com/downloads/en/AppNotes/00870b.pdf