The manner in which to compare bdifthThresholdObject to bdifthThresholdFiredValue and bdifthThresholdClearedValue. The value 'absoluteValue' indicates that the value of bdifthThresholdObject is to be compared directly to bdifthThresholdFiredValue or bdifthThresholdClearedValue. The value 'deltaValue' indicates that the difference between two successive samples of bdifthThresholdObject is to be compared to bdifthThresholdFiredValue or bdifthThresholdClearedValue. The polling interval between successive samples is defined in bdifthThresholdSampleInterval. The value 'rateOfIncreaseExponentXIfSpeed' indicates that the rate of increase of bdifthThresholdObject is to be compared to the negated value of bdifthThresholdFiredValue used as the exponent of 10, times the value of ifSpeed (if the value of ifSpeed is less than the maximum value) or ifHighSpeed (otherwise). For example, a value of bdifthThresholdFiredValue of 5 on a gigabit ethernet interface indicates a threshold of 10^-5 times the interface speed, which is equal to 10,000 per second. When the value of this object is 'rateOfIncreaseExponentXIfSpeed', the polling interval between successive samples is determined automatically by the agent. When the object identified by bdifthThresholdObject is a counter, a threshold type of 'deltaValue' or 'rateOfIncreaseExponentXIfSpeed' should be used. When the object identified by bdifthThresholdObject is not a counter, a threshold type of 'absoluteValue' should be used.