User`s guide

Alarms and Traps
Setting Alarms
5967–9446 451
Trap Handling
When an RMON alarm sends a trap to an OpenView NNM management
station, the following sequence occurs:
1 OpenView NNM detects the trap.
2 The ovactiond process recognizes that special action is needed and
starts /usr/OV/bin/pmTrapMgr.sh (part of the NetMetrix RMON
Utilities).
3 pmTrapMgr.sh contacts the agent to determine additional informa-
tion about the alarm that generated the trap, including the owner
string, what command to execute (if any), and so on.
4 pmTrapMgr.sh formats a new trap containing this additional infor-
mation and sends it to OpenView NNM.
5 pmTrapMgr.sh runs the script that was requested, for example,
pmTrapDisp.sh, then pmTrapMgr.sh exits.
6 OpenView NNM picks up the new trap and displays it in the appropri-
ate event category and with the configured severity.
If a trap is not handled as you expect, check the file /usr/OV/log/
ovactiond.log for any messages.