The TCP/IP Guide - SNMP Version 2 (SNMPv2) Message Formats

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The special format of the SNMPv2 GetBulkRequest-PDU message is shown in Table 220 and Figure 284.

**Table 220: SNMP Version 2 (SNMPv2) *GetBulkRequest-PDU* Format**
Field Name	Syntax	Size (bytes)	Description
*PDU Type*	Integer (Enumerated)	4	*PDU Type:* An integer value that indicates the PDU type, which is 5 for a GetBulkRequest-PDU message.
*Request ID*	Integer	4	*Request Identifier:* A number used to match requests with replies. It is generated by the device that sends a request and copied into this field in a Response-PDU by the responding SNMP entity.
*Non Repeaters*	Integer	4	*Non Repeaters:* Specifies the number of non-repeating, regular objects at the start of the variable list in the request.
*Max Repetitions*	Integer	4	*Max Repetitions:* The number of iterations in the table to be read for the repeating objects that follow the non-repeating objects.
*Variable Bindings*	Variable	Variable	*Variable Bindings:* A set of name-value pairs identifying the MIB objects in the PDU. See the general message format topic for more on these bindings.