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Sample type
Sample type:
• absolute—
RMON compares the calculation result of the variable
formula with the rising and falling thresholds at the end of the sampling
interval.
• delta—
RMON subtracts the calculation result of the variable formula
for the previous sampling interval from the current calculation result,
and then compares the difference with the rising and falling thresholds.
Variable formula Variable formula.
Description Description of the alarm entry.
Sampling interval
Interval (in seconds) at which data is sampled and compared with the rising
and falling thresholds.
Rising threshold
Alarm rising threshold.
A rising alarm is generated when the following conditions are met:
• The current sampled value is greater than or equal to this threshold.
• The value at
the previous sampling interval was less than this
threshold.
A rising alarm is also generated when the following conditions are met:
• The first sample after this entry becomes valid is greater than or equal
to this threshold.
• The associated alarmStartupAlarm instance is equal to risingAlarm or
risingOrFallingAlarm.
Falling threshold
Alarm falling threshold.
A falling alarm is generated when the following conditions are met:
• The current sampled value is less than or equal to this threshold.
• The value at the
previous sampling interval was greater than this
threshold.
A falling alarm is also generated when the following conditions are met:
•
The first sample after this entry becomes valid is less than or equal to
this threshold.
• The associated alarmStartupAlarm instance is equal to fallingAlarm or
risingOrFallingAlarm.
associated with event Event index associated with the alarm.
startup
Alarm that can be generated when the entry becomes valid:
• risingAlarm—Generates a rising alarm if the first sample after the
entry becomes valid is greater than or equal to the rising threshold.
• fallingAlarm—
Generates a falling alarm if the first sample after the
entry becomes valid is less than or equal to the rising threshold.
• risingOrFallingAlarm—Generates a rising alarm or falling alarm if the
first sample after the entry becomes valid crosses the rising threshold
or falling threshold.
The default is
risingOrFallingAlarm
.
Entry lifetime
Lifetime of the entry.
• If the lifetime is set to forever, the entry never expires.
• If the lifetime is set to an amount of time, the entry is removed when the
timer expires.
Latest value Most recent sampled value.
NOTE:
The prefix of the MIB objects varies by device brands.
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