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13.3.4 Alarm

On this page, you can configure Statistic Group and Alarm Group for RMON.

Choose the menu SNMP→RMON→Alarm to load the following page.

Figure 13-12 Alarm Config

The following entries are displayed on this screen:



Alarm Config

Select:

Select the desired entry for configuration.

Index:

Displays the index number of the entry.

Variable:

Select the alarm variables from the pull-down list.

Statistics

Select the RMON statistics entry from which we get the value of

the selected alarm variable.

Sample Type:

Specify the sampling method for the selected variable and

comparing the value against the thresholds.

 Absolute:

Compares the values directly with the thresholds

at the end of the sampling interval.

 Delta:

Subtracts the last sampled value from the current

value. The difference in the values is compared to the

threshold.

Rising Threshold:

Enter the rising c

ounter value that triggers the Rising Threshold

alarm.

Rising Event:

Select the index of the corresponding event which will be

triggered if the sampled value is larger than the Rising

Threshold.

Falling Threshold:

Enter the falling counter value that t

riggers the Falling Threshold

alarm.

Falling Event:

Select the index of the corresponding event which will be

triggered if the sampled value is lower than the Falling

Threshold.

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