The Alarm Table 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.
Alarm Port — Port to which the alarm is configured.
Sample Time — There are two Sample Time settings:
Delta (Default) — The counter is reset at the times defined by the interval.
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.
Value — Value reached after the alarm was triggered.
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.
Rising and Falling Events — The mechanism in which the alarms will be reported. Either LOGed or TRAPed or combination of both. When LOG is selected, there is no saving mechanism either in the device or in the management system. However, if the device is not being reset, it will remain in the device LOG table. If TRAP is selected, a TRAP via SNMP is generated and reported via the TRAPs general mechanism. The TRAP can be saved using the same mechanism (refer to Trap Monitor).
A new alarm is set through the Element Statistics Graph window.
To set a new Alarm:
On the Menu Bar click Statistics.
On the Statistics menu, click Element Statistics.
Create a graph and display the Element Statistics Graph window.
In the "Alarm Definition" area click New. The New Alarm screen is displayed.
Complete the table entry fields and click . The Element Statistics Graph window is displayed.
To an Alarm:
On the Menu Bar click Statistics.
On the Statistics menu, click Alarm Table. The Alarm Table is displayed.
Select an alarm and Click . The Alarm Table Edit window is displayed.
Edit the required table entry fields and click . The Alarm Table window is displayed.
Click . When the Status field displays “Finished!”, the fields are confirmed as modified.
To delete an Alarm:
On the Menu Bar click Statistics.
On the Statistics menu, click Alarm Table. The Alarm Table is displayed.
Select the alarm to delete.
Click .
Click . When the Status field displays “Finished!”, the alarm is confirmed as deleted.