The SNMP agent and SNMP manager communicate using the Simple Network
Management Protocol. Table 5 describes the requests and notifications exchanged between
the SNMP agent and SNMP manager.
Table 5. Communication between SNMP agent and SNMP manager
Request or notification | Description |
---|---|
Get | The SNMP manager sends this request to the SNMP agent to get information about the device or one of its managed components. |
GetNext | The SNMP manager sends this request to the SNMP agent to get information about the component next to the one requested previously. This is used to iterate through a table of components. |
GetBulk | The SNMP manager sends this request to the SNMP agent to get an entire table of data. |
Set | The SNMP manager sends this request to the SNMP agent to set a configurable parameter in the managed devices. It is also used to start and stop components. |
Trap | A trap is an asynchronous notification sent by the SNMP agent to the SNMP manager when the status of a component in the managed device changes, and the SNMP manager has expressed interest in such status changes. |