SNMP (Simple Network Management Protocol) is a widely used network management protocol that allows devices on a network to be monitored, controlled, and managed by a central system. It enables network administrators to gather information about the performance and health of network devices, such as routers, switches, and servers, and to make changes to their configuration remotely. SNMP uses a client-server architecture, with the client being the network management system and the server being the managed device. This protocol is essential for maintaining the smooth operation and security of a network, as it provides real-time monitoring and troubleshooting capabilities.