{TAIL ~ The network} further includes {HEAD ~ a source} of multicast packets in a multicast session coupled to a first node of the long haul portion 
{ TAIL ~ The network } further includes { HEAD ~ a source } of multicast packets in a multicast session coupled to a first node of the long haul portion
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH