TP-Link T1600G-28PS Jetstream Smart Switches User Guide - Page 877

Configuring SNMP & RMON 1 SNMP SNMP 1.1 Overview SNMP (Simple Network Management Protocol) is a standard network management protocol, widely used on TCP/IP networks. It facilitates device management using NMS (Network Management System) applications. With SNMP, network managers can view or modify the information of network devices, and timely troubleshoot according to notifications sent by those devices. As the following figure shows, the SNMP system consists of an SNMP manager, an SNMP agent, and a MIB (Management Information Base). The SNMP manager is a host that runs NMS applications. The agent and MIB reside on the managed device, such as the switch, router, host or printer. By configuring SNMP on the switch, you define the relationship between the manager and the agent. Figure 1-1 SNMP System Host Running NMS Application Managed Device Get or set MIB objects values Respond or send notifications SNMP Manager MIB SNMP Agent 1.2 Basic Concepts The following basic concepts of SNMP will be introduced: SNMP manager, SNMP agent, MIB (Management Information Base), SNMP entity, SNMP engine, Notification types and SNMP version. SNMP Manager The SNMP manager uses SNMP to monitor and control SNMP agents, providing a friendly management interface for the administrator to manage network devices conveniently. It can get values of MIB objects from an agent or set values for them. Also, it receives notifications from the agents so as to learn the condition of the network. SNMP Agent An SNMP agent is a process running on the managed device. It contains MIB objects whose values can be requested or set by the SNMP manager. An agent can send unsolicited trap messages to notify the SNMP manager that a significant event has occurred on the agent. User Guide 852