| Description | The method of sampling the selected statistic and
calculating the value to be compared against
cnpdThresholdConfigRising or
cnpdThresholdConfigFalling thresholds.
If the value of this object is absoluteValue(1),
the value at the end of the sampling interval
cnpdThresholdConfigInterval, will be compared
with the cnpdThresholdConfigRising and
cnpdThresholdConfigFalling thresholds.
In this mode, when cnpdThresholdConfigStatsSelect is
byte or packet based, a maximum of two
cnpdThresholdHistory entries will be created per
application, as these byte and packet counts
monotonically increase from zero.
If the value of this object is deltaValue(2),
the difference between the samples at the
beginning and end of the cnpdThresholdConfigInterval
will be compared with the cnpdThresholdConfigRising
and cnpdThresholdConfigFalling thresholds.
Because the difference in the previous and current
samples are compared over the sample period
cnpdThresholdConfigInterval, this mode provides
more granularity to the thresholds because the NMS
is now provided with the gradient or change in the
cnpdThresholdConfigStatsSelect.
Note that even though the sample value is monotonically
increasing for byte and packet counts,
cnpdThresholdConfigSampleType set to deltaValue, can
generate falling cnpdThresholdHistory entries, because
the gradient can be lower than the
cnpdThresholdConfigFalling value. |