This object indicates the hop limit of the corresponding
traffic flow.
If version 4 of the IP carries the traffic flow, then the value
of this column corresponds to the 'Time to Live' field of the
IP header contained by packets in the Mediatrace request.
If version 6 of the IP carries the traffic flow, then the value
of this column corresponds to the 'Hop Limit' field of the IP
header contained by packets in the Mediatrace request.