We're getting saturated on the Internet. Nashville's CityNet is a working blueprint of how to apply regional segmentation for the good of both local users and the Internet at large. This collapsed-backbone type of routing provides a central point of connectivity for seven locally attached ISPs and CityNet members. CityNet is capable of supporting a large volume of local routers. CDS does not in itself provide access to the Internet.
Users wanting Internet access can set up an account with one of the locally attached ISPs.
Each service provider maintains its own direct Internet connection and offers access through dial-up modems, ISDN and CityNet. Locally attached users receive dynamically allocated IP addresses for use exclusively within CityNet. IP addresses are transparently assigned to the users. Internet users with an assigned IP address and domain name are unaffected by the locally assigned dynamic IP address. ISDN and CDS are services provided by Bell South.