| USENET is made
up of many subnetworks. Each subnet has a name, such as 'net' or 'btl'... Each
subnet is a connected graph, that is, a path exists from every node to every other
node in the subnet. In
addition, the entire graph is (theoretically) connected. (In practice, some political
considerations have caused some sites to be unable to post articles reaching the
rest of the network.). - Mark Horton;
Standard for
Interchange of USENET Messages; RFC 850;
June 1983 |
