Specifies the high threshold for an error counter
type.
When the increase in this error counter type on an
interface between two consecutive sampling exceeds the
instance value of clemThresholdHigh for this error counter
type consecutively for clemSamplingTimes number of times,
a clemHighThresholdExceeded notification on that interface
will be sent. And, the action specified by clemAction
will be taken on that interface. The instance value of
this clemThresholdHigh must be greater than the instance
value of the clemThresholdLow of the same row.