The value of tmnxOamTrCtlTrapGeneration specifies when and if to
generate a notification for this entry:
pathChange(0) - Generate a tmnxOamTrPathChange
notification when the current path varies from a previously
determined path.
testFailure(1) - Generate a tmnxOamTrTestFailed notification when
the full path to a target can't be determined.
testCompletion(2) - Generate a tmnxOamTrTestCompleted notification
when the test is completed.