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Modular L3 Ethernet Switch User’s Guide
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Figure 6- 209. New Alarm window
The New Alarm window displays the following parameters:
Alarm Interval – The value used is Time (in seconds). The default is the value
specified in the graph Sample Time parameter. Modifications are done by
changing the Sample Time parameters. Sample Time settings are as follows
•
Delta – Counter is reset.
•
Absolute – ROS monitors the counter for the defined interval.
Alarm Variable – The selected MIB variable.
Sample Time – There are two Sample Time settings:
•
Delta
–
The counter is reset at the times defined by the interval. This is the
default.
•
Absolute – The counter is not reset until the counter is overflowed. If the
counter overflows, the threshold is set according to the aggregated counter
results.
Startup Alarm – The trigger that activates the alarm generation. The trigger can
be a Rising alarm, Falling alarm, or a combination of both Rising and Falling.
Rising is defined by crossing the threshold from low value threshold to a higher
value threshold.
Rising Threshold – The rising counter value that triggers the Rising Threshold
alarm.
Falling Threshold – The falling counter value that triggers the Falling Threshold
alarm.
Note: The Rising and Falling threshold are graphically presented on top of the graph
bars. Each monitored variable is designated a color.