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Details of the procedure.
SNMP trap
SNMP traps are one of the oldest standards for fault notification on network equipment. As one of the oldest standard protocols, most network devices with basic management capabilities typically support SNMP traps. When a device detects an error or change, the device will send a notification to one or more trap receivers.
NMIS waits for incoming messages and upon receiving data and, depending on the filtering rule, sound the alarm to notify of this detected event.
Tests for snmptraps reception.