A VN Port, VN Port1 701, instantiated in ENode1 700 is connected through {TAIL ~ the communications network} 717 to {HEAD ~ VN Port2} 704, instantiated in ENode2 703 
A VN Port , VN Port1 701 , instantiated in ENode1 700 is connected through { TAIL ~ the communications network } 717 to { HEAD ~ VN Port2 } 704 , instantiated in ENode2 703
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH