Defined adjacency information can be exchanged, and {HEAD ~ a neighborhood} established on {TAIL ~ an EPN}, where one authorized neighbors securely communicate 
established on
Defined adjacency information can be exchanged , and { HEAD ~ a neighborhood } established on { TAIL ~ an EPN } , where one authorized neighbors securely communicate
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH