| Description | This entry contains configuration information to
set thresholds for the purpose of notifications.
The management station is allowed to set thresholds
on individual statistics for individual protocols
on an interface. If the threshold is breached by
the protocol statistic, a new event is written to
the cnpdThresholdHistoryTable, which in turn will
generate a Notification Event.
This function has a hysteresis mechanism to limit
the generation of events. This mechanism generates
one event as a threshold is crossed in the
appropriate direction. No more events are generated
for that threshold until the opposite threshold is
crossed. This stops repeated Notification events
being generated each time the value is sampled,
when the value is above the threshold. Instead one
notification is sent when the threshold is breached
and one notification when the statistic drops below
the threshold value again. |