Description: A threshold for the sampled statistic. When the current sampled value is greater than or equal to this threshold, and the value at the last sampling interval was less than this threshold, a single event will be generated. A single event will also be generated if the first sample after this entry becomes active is greater than or equal to this threshold and the associated snmpAlarmStartupAlarm is equal to `risingAlarm' or `risingOrFallingAlarm'.

After a rising event is generated, another such event will not be generated until the sampled value falls below this threshold and reaches the snmpAlarmFallingThreshold.

An attempt to modify this object will fail with an `inconsistentValue' error if the associated snmpAlarmStatus object would be equal to `active' both before and after the modification attempt.