The Interplanetary Internet:
An overlay network  for interconnection of regional internets   
•A region is an area where the relevant characteristics of communication are homogeneous
•One can define regions that are based upon:
–Communications capability
–Quality of Service Peerings
–Security (levels of trust)
–Degree of resource management
–Etc.
•Traversal of two or more regions will effect the nature of communications
RA
RB
RE
RD
RC