Well, not just SUNET. It includes SUNET (Sweden), UNINETT (Norway), FUNET (Finland), Forskingsnettet (Denmark) and RHnet (Iceland), and was how the Nordic networks arranged internet access - before NORDUnet only Norway had internet/Arpanet access (largely due to NATO - the NORSAR connection from the early 70's was because the seismic array was a way of keeping track of Soviet missile tests), and only to a few institutions.
