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Interest in Open Systems Interconnection (OSI) for networks has grown with the completion of major components of these standards. As initial OSI networks are implemented, interconnection with the more than 10 000 existing SNA networks will become an increasingly common goal. The paper by Sy and his colleagues reports on a joint study between IBM and Nippon Telegraph and Telephone Corporation on OSI-SNA interconnection. It describes a possible application of OSI and compares the functions of OSI and SNA. It also introduces mapping techniques and a gateway structure, as well as discussing address translation and exception handling.
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