Another figure shows the example of RMON alarm for DELTA sample type. As shown in
the following figure, the delta value varies high and low. The sample in T1 is the first one
crossing the Rising Threshold, so an alarm occurs. No alarms will be generated
afterwards until T5 sample which is crossing the Falling Threshold (note that the value of
the previous sample, T4 sample, is greater than the Falling Threshold and the value of T5
sample). Alarm is not generated for T7 sample since an alarm is already generated for T5
sample and the curve is not in a downward trend around T7. A Rising Threshold crossing
alarm is generated again for T10 sample, because a Falling Threshold crossing alarm
(T5) has occurred after the previous Rising Threshold crossing alarm (T1).
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