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Index
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An integer value that uniquely identifies an entry in the alarm table.
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Interval
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The interval in seconds over which the data is sampled and compared with the rising and falling thresholds.
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Variable
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The object identifier of the particular variable to be sampled. Only variables that resolve to an ASN.1 primitive type of INTEGER (INTEGER, Counter, Gauge, or TimeTicks) may be sampled.
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SampleType
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Can be either absolute or delta.
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Value
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The value of the statistic during the last sampling period. For example, if the sample type is deltaValue, this value will be the difference between the samples at the beginning and end of the period. If the sample type is absoluteValue, this value will be the sampled value at the end of the period.
This is the value that is compared with the rising and falling thresholds. The value during the current sampling period is not made available until the period is completed and will remain available until the next period completes.
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StartupAlarm
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The alarm that may be sent when this entry is first set to valid. If the first sample after this entry becomes valid is greater than or equal to the risingThreshold and alarmStartupAlarm is equal to risingAlarm or risingOrFallingAlarm, then a single rising alarm will be generated.
If the first sample after this entry becomes valid is less than or equal to the fallingThreshold and alarmStartupAlarm is equal to fallingAlarm or risingOrFallingAlarm, then a single falling alarm will be generated. This object may not be modified if the associated alarmStatus object is equal to valid.
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RisingThreshold
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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 valid is greater than or equal to this threshold and the associated alarmStartupAlarm 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 alarmFallingThreshold.
This object may not be modified if the associated
alarmStatus object is equal to valid.
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RisingEventIndex
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The index of the eventEntry that is used when a rising threshold is crossed. The eventEntry identified by a particular value of this index is the same as identified by the same value of the eventIndex object. If there is no corresponding entry in the eventTable, then no association exists.
In particular, if this value is zero, no associated event will be generated, as zero is not a valid event index. This object may not be modified if the associated alarmStatus object is equal to valid.
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FallingThreshold
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A threshold for the sampled statistic.
When the current sampled value is less than or equal to this threshold, and the value at the last sampling interval was greater than this threshold, a single event will be generated.
A single event will also be generated if the first sample after this entry becomes valid is less than or equal to this threshold and the associated alarmStartupAlarm is equal to fallingAlarm or risingOrFallingAlarm.
After a falling event is generated, another such event will not be generated until the sampled value rises above this threshold and reaches the alarmRisingThreshold.
This object may not be modified if the associated alarmStatus object is equal to valid.
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FallingEventIndex
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The index of the eventEntry that is used when a falling threshold is crossed.
The eventEntry identified by a particular value of this index is the same as identified by the same value of the eventIndex object. If there is no corresponding entry in the eventTable, then no association exists.
In particular, if this value is zero, no associated event will be generated, as zero is not a valid event index. This object may not be modified if the associated alarmStatus object is equal to valid(1).
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Owner
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The entity that configured this entry and is therefore using the resources assigned to it.
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Status
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The status of this alarm entry.
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