George A. Deaton

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This paper describes ISM’S use of Recommendation X.25 and related recommendations of the International Telegraph and Telephone Consultative Committee. After reviewing the development history of X.25 and some of the motivations for using it, the paper gives an overview of packet-switched data networks. The reader is then given a brief technical description(More)
Since its announcement in 1974, Systems Network Architecture (SNA) has evolved in terms of its functional content, configurational flexibility, and network management services. This paper briefly traces this progress to the present and examines the more recent advances in greater detail. It then discusses known requirements for enhanced application and(More)
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