The Notification Crossing Type of the object that caused the generation
of the notification from the jnxSoamLmThresholdEntry or
jnxSoamDmThresholdEntry.
aboveAlarm(1) indicates that the crossing type alarm was an above
threshold
setAlarm(2) indicates that the crossing type alarm was a set
threshold
clearAlarm(3) indicates that the crossing type alarm was a clear
threshold
This object is only used for the notification.