Operations considerations in a large privated packet switching network
R. D. Stubbs, L. Dee Swymer, T. L. Quinn · 1985
In early 1977, Southern Bell began to study ways to reduce terminal and leased line costs associated with internal computer communications. Because a large volume of these communications were of an asynchronous, character-mode nature, packet switching emerged as the most attractive solution to reducing these costs. In May, 1979, the first application went on-line with one switch, one host concentrator and three terminal concentrators. Operation of this network was simple, with operations and planning residing in the same work group.