Specifies the health level at which a
ciscoHealthMonitorHealthLevel notification will be
generated for the specified subsystem and entity.
A notification will only be generated if the health
level had previously reached the high threshold level
prior to reaching this low threshold level.
Health levels oscillating within the high and the low
threshold levels do not generate notifications.
A health level going from high threshold (or above)
to low threshold (or below) represents a deterioration
of the health for the specified subsystem.
Set your unacceptable health level to this threshold.