tmnxOamLTtraceResultsEntry represents a row in the
tmnxOamLTtraceResultsTable. The two indices of the
tmnxOamLTtraceResultsTable are the same as that in the
tmnxOamTrCtlTable in order for a tmnxOamLTtraceResultsEntry to
correspond to the tmnxOamTrCtlEntry that caused it to be
created.