SNMP

Simple Network Management Protocol is an Internet Standard protocol for collecting and organizing information about managed devices on IP networks and for modifying that information to change device behavior. There are SNMP Agents and SNMP Managers. An agent is a software process that responds to SNMP queries to provide information about a network-connected device. A manager is an application that manages SNMP agents on a network by sending commands (SETs) to control devices, requesting responses (GETs), and listening for agent-issued alarms (TRAPs).