Description: Defines an entry in the tmnxOamMacTrL2MapTable. The first two index elements identify the tmnxOamTrCtlEntry that a tmnxOamMacTrL2MapEntry belongs to. The third index element identifies a particular OAM trace route test run. The fourth index element selects the group of responses associated with a specific probe attempt. The fifth and sixth indexes select the hop and the probe at that hop for a particular Alcatel 7x50 SR OAM Trace Route operation. Note that in the case of a successful 'macTraceRoute' reply there will be only one row entry created. However there may also be one or more error replies. The seventh index selects a single L2 mapping entry withing a specific probe reply.