Dahua PFS4218-16GT-190 Web Config Manual page 36

(shown as the black curve) exceeds the threshold (shown as the blue curve) for several times,
and there are several cross points. Only the points marked with red crosses trigger alarm event.
Step 1 Select Advanced > Configuration > Security > RMON > Alarm.
The Alarm interface is displayed. See Figure 4-40.
Step 2 Click Add New Entry, and set the parameters according to the interface, including ID,
sample interval, variable, sample type, startup alarm, and so on.
Step 3 Click Save.
Event
Event group is for defining the event reference number and the processing mode. The events
defined in event group are applied in the alarm configuration. When the monitored target
reaches the alarm condition, alarm event is triggered. There are several processing mode:
 Log: The corresponding information (the event time and event content) of the alarm event
will be recorded in the event log table of the device RMON MIB, and the management
device can check the information through SNMP GET operation.
SNMP Trap: Trap packet will be sent to network management station to inform the alarm

event.
Log and Trap: The alarm event will be recorded in the event log table of the device, and

Trap packet will be sent to network management station .
None: No processing.

Step 1 Select Advanced > Configuration > Security > RMON > Event.
The Event interface is displayed. See Figure 4-41.
Figure 4-39 Upper threshold and lower threshold alarm
Figure 4-40 Alarm
Advanced Settings 29