User`s guide

Alarms and Traps

Setting Alarms

5967–9446 445

2 Push the Options… button to display the advanced alarm parameters.

Set the rising event to Send SNMP trap and execute… a script called

pmNewNode.sh.

Figure 92 on page 445 shows the relevant parts of the Conﬁgure Alarm

and Alarm Advanced Options windows for this alarm.

When a host transmits for the ﬁrst time on the network, the station

count in the host table on the data source increments by one, and the

alarm is triggered. The agent logs the event and sends a trap to the man-

agement station, which executes the script pmNewNode.sh (located in

/opt/OV/bin).

The script displays the most recent entries in the hostTimeTable, indi-

cating that they are new nodes. (The number of entries displayed is

determined by the $VALUE variable, which equals the actual value for

the monitored object, Station Count, when the alarm triggered.)

Figure 92 Example: Alarm on Station Count

Conﬁgure Alarm

Alarm Advanced

Options

Script displays a

dialog box indicating

new hosts when trap

is sent