Processing a SET request is similar to processing a GET request, but the SNMP agent passes additional information to the subagent. This additional information consists of the type, length, and value to be set.

If the object ID of the variable is not supported, the subagent returns an error indication of SNMP_NO_SUCH_NAME. If the object ID of the variable is supported, but cannot be set, an error indication of SNMP_READ_ONLY is returned. If the object ID of the variable is supported, and is successfully set, the message SNMP_NO_ERROR is returned.