SNMP Version 1 (SNMPv1) Message Format
The SNMP general message format was first used to define the format of messages in the original SNMP protocol, SNMPv1. This first version of SNMP is probably best known for its relative simplicity compared to the versions that followed it. This is reflected in its message format, which is quite straightforward.
SNMPv1 General Message Format
The general message format in SNMPv1 is a wrapper consisting of a small header and an encapsulated PDU. Not very many header fields were needed in SNMPv1 because the community-based security method in SNMPv1 is very rudimentary. The overall format for SNMPv1 messages is described in Table 68-2 and illustrated in Figure 68-2.
Table 68-2. SNMP Version 1 (SNMPv1) General Message ...
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