This value denotes the configured path that was chosen as
the explicit path to this destination of this P2MP tunnel.
This value reflects the secondary index into
mplsTunnelHopTable where the primary index comes from
cmplsTeP2mpTunnelDestHopTableIndex.
The path indicated by this object might not exactly match
the one signaled and recorded in mplsTunnelCHopTable as
specific details of the path might be computed locally.
Similarly, the path might not match the actual path in use
as recorded in mplsTunnelARHopTable due to the fact that
some details of the path may have been resolved within the
network.
A value of zero denotes that no path is currently in use or
available.