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Table Of Contents  The TCP/IP Guide
 9  TCP/IP Application Layer Protocols, Services and Applications (OSI Layers 5, 6 and 7)
      9  TCP/IP Network Configuration and Management Protocols (BOOTP, DHCP, SNMP and RMON)
           9  TCP/IP Network Management Framework and Protocols (SNMP and RMON)
                9  TCP/IP Simple Network Management Protocol (SNMP) Protocol
                     9  SNMP Protocol Messaging and Message Formats

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SNMP Version 1 (SNMPv1) Message Format
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SNMP Version 3 (SNMPv3) Message Format
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SNMP Version 2 (SNMPv2) Message Formats
(Page 2 of 6)

SNMP Version 2 (SNMPv2p) Message Format

The party-based security model is quite complex, but the basic messaging in this version is described through the definition of a management communication, which describes the source and destination party and makes reference to a context for the communication. The overall message format is described in detail in RFC 1445. This information is summarized in Table 215 and shown graphically in Figure 280.


Table 215: SNMP Version 2 (SNMPv2p) General Message Format

Field Name

Syntax

Size (bytes)

Description

Version

Integer

4

Version Number: Describes the SNMP version number of this message; used for ensuring compatibility between versions. For SNMPv2p, this value is 2.

Dst Party

Sequence of Integer

Variable

Destination Party: An object identifier that specifies the party that is the intended recipient of the message.

Src Party

Sequence of Integer

Variable

Source Party: An object identifier that specifies the party that is the sender of the message.

Context

Sequence of Integer

Variable

Context: Defines a set of MIB object resources that is accessible by a particular entity.

PDU

Variable

PDU: The protocol data unit of the message.



Figure 280: SNMP Version 2 (SNMPv2p) General Message Format

 


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