tmnxOamLTtraceHopInfoEntry represents a row in the
tmnxOamLTtraceHopInfoTable. The first two indices of the
tmnxOamLTtraceHopInfoTable are the same as the tmnxOamTrCtlTable in
order for a tmnxOamLTtraceHopInfoEntry to correspond to the
tmnxOamTrCtlEntry that caused it to be created. The third index
element, tmnxOamLTtraceHopIndex, selects a hop in an Alcatel-Lucent
SROS LDP Tree Trace discovered path.