Configuring the switch 156
RMON Alarm Configuration
To display the following form, go to the RMON Alarm Groups Configuration form. Select an Alarm Group, or
open the Alarm folder and click Add Alarm Group.
The following table describes the Alarm Group Configuration controls:
Table 125 Alarm Group Configuration controls
Control Description
Alarm Group ID Configures the numeric identifier of the Alarm index.
MIB Object ID Configures an alarm MIB Object Identifier.
The alarm OID can have a maximum of 127 characters.
Rising Limit Configures the rising 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 is generated.
Falling Limit Configures the falling 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 is generated.
Rising Event Index Configures the rising alarm event index that is triggered when a rising threshold is crossed.
The range is from 0 to 65535. The default value is 0.
Falling Event Index Configures the falling alarm event index that is triggered when a falling threshold is crossed.
The range is from 0 to 65535. The default value is 0.
Alarm Type Configures the alarm type as rising, falling, or either (rising or falling).
Sample Type Configures the method of sampling the selected variable and calculating the value to be
compared against the thresholds, as follows:
• abs: absolute value, the value of the selected variable is compared directly with the thresholds
at the end of the sampling interval.
• delta: delta value, the value of the selected variable at the last sample is subtracted from the
current value, and the difference compared with the thresholds.
Polling Interval Configures the time interval over which data is sampled and compared with the rising and falling
thresholds.
The range is from 1 to 3600 seconds. The default is 1800 seconds.
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