The FOXMAN-UN proxy agent may send SNMP V1 or SNMP V2c notifications. To configure which type of traps are sent, the parameter «snmp_trap_version» can be set. Setting the parameter to «1» will ensure the agent sends SNMP V1 traps, and setting it to «2» will indicate that SNMP V2c notifications must be sent.

The «nemTrapSequenceNumber» is incremented each time the proxy agent sends a trap. The proxy agent sends the alarm in response to a change of events in the database. The SNMP agent is not responsible for resending lost traps due to communication failure between the two entities. In such an event the «nemTrapSequenceNumber» variable is used to ascertain if traps have been lost by the Higher Level Manager (HLM).