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SNMP PDU Types

SNMP offers the six types of PDUs defined in Table 22.

Table 22: SNMP PDU Types

SNMP PDU Type

Definition

Get Bulk

Transmitted by the client to the server to obtain the identifiers and the values of a group or collection of variables rather than one variable at a time. GetBulk is not available in SNMPv1.

Get Next Request

Transmitted by the client to the server to obtain the identifiers and the values of variables located after the designated variables.

Get Request

Transmitted by the client to the server to obtain the values of designated variables.

Get Response

Transmitted by the server to the client in response to a Get Request, a Get Next Request, or a Set Request PDU.

Set Request

Transmitted by the client to the server to modify the values of designated variables.

Notification

Transmitted by the server, on its own initiative, to inform the client of a special event noted on a network device. (Called a trap in SNMPv1.)


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