Signamax Managed Hardened PoE Industrial DIN-rail Mount Switch - Manual (Page 77)

14 RMON
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the thresholds at the end of the sampling interval. If the value of this object is deltaValue (2),
the value of the selected variable at the last sample will be subtracted from the current value,
and the difference will be compared with the thresholds.
RMON alarm can monitor the specified alarm variables. The monitored alarm variables are
greater than the rising threshold, a rising alarm will be triggered; and if the variables are
smaller than the specified falling threshold, a falling alarm will be triggered.
When you define the alarm entries, the system will deal with the alarm entries in the following
ways:
(1) Sample the defined alarm variables with the specified sampling interval
(2) Compare the sampling value with the thresholds, a corresponding event will be triggered
when the sampling value is beyond the threshold.
Configuration Steps:
Step 1 Specify the port to collect the statistics
Step 2 Select a variable
Step 3 Select sample type: Absolute and Delta. Sets the type of sampling, the method of
sampling the selected variable and calculating the value to be compared against the
thresholds is as follows: If the value of this object is absoluteValue (1), the value of
the selected variable will be compared directly with the thresholds at the end of the
sampling interval. If the value of this object is deltaValue (2), the value of the selected
variable at the last sample will be subtracted from the current value, and the
difference will be compared with the thresholds.
Step 4 Type the Rising Threshold, ranging from 1 to 2147483640. And select Rising Event
Index, which is set in 14.4 Event .
Rising Threshold: The rising threshold of the sampled statistic. When the current
sampled value is greater than or equal to this threshold, and the last sample value is
less than this threshold, a single event will be generated. A single event will also be
generated if the first sample, after this entry becomes valid, is greater than or equal
to this threshold and the associated StartupAlarm is equal to risingAlarm(1) or
risingOrFallingAlarm(3). After a rising event is generated, another such event will not
be generated until the sampled value reaches the FallingThreshold or falls below this
threshold.
Rising Event Index: The index of the eventEntry is used when a rising threshold is
crossed. The eventEntry identified by a particular value of this index is the same as
identified by the same value of the event Index object.
Step 5 Type the Falling Threshold, ranging from 1 to 2147483640. And select Rising Event
Index, which is set in 14.4.
Falling Threshold: A threshold for the sampled statistic. When the current sampled