Description: The critical alarm threshold for usrVHAPktThroughputValue gauge. Object value of 0 disables this alarm and threshold. IF this object is set to a non-zero value equal or less than the current value of usrVHAPktThroughputMajorAlarmThresh, THEN usrVHAPktThroughputMajorAlarmThresh will be automatically reduced to a valid value. IF this object is set to a non-zero value equal or less than the current value of usrVHAPktThroughputClearAlarmThresh, THEN usrVHAPktThroughputClearAlarmThresh will be automatically reduced to a valid value. Agent is allowed to either reject a SET which violates these constraints, or adjust the object value such that the constraints hold. Changing threshold values causes the alarm state to be re-evaluated. IF usrVHAPktThroughputAlarmState is not 'critical' and the current gauge value is equal or greater than this critical threshold, and this critical threshold is non-zero, THEN usrVHAPktThroughputAlarmState will change to 'critical'. See usrVHAPktThroughputAlarmState for TRAP generation details.