АМАТЕК AN-SGM28P24-400 [246/322] Snmp introduce

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 SNMP configuration example

19.1 SNMP introduce

SNMP is a simple network management protocol, is the most widely used network

management protocol, it has five major functions: fault management, billing management,

configuration management, performance management, security management. It provides

information format for communication between network management application software and

network management agent (agent)。

SNMP network management protocol has four main elements: management workstation,

management agent, management information base, network management protocol. The

management agent is the server of the management workstation accessing the switch. The

information of the management workstation accessing the network management agent is organized

in the form of MIB, and the management information base is formed。

SNMP has three big operations: GET operation, SET operation, TRAP operation. The GET

operation enables the management workstation to obtain the value of the object in the proxy. The

SET operation enables the management workstation to set the value of the object in the proxy. The

TRAP operation enables the agent to notify the event of the management workstation。

The TRAP message is sent to the management workstation automatically when the event

occurs. These messages include cold start, hot start, port link up, link down, shared name

authentication failure, STP state switching, etc.。

At present, SNMP has three versions: SNMPV1, SNMPV2, SNMPV3, and the latter version

is the upgraded version in the previous, the function has been enhanced, and the security has been

improved. The switch supports all three SNMP versions and can parse three versions of the SNMP

protocol package. When you send TRAP messages, you can use any version of SNMPV1,

SNMPV2, and SNMPV3。