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The OSI reference model

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2 Author(s)
Day, J.D. ; Codex Corporation, Mansfield, MA ; Zimmermann, H.

The early successes of computer networks in the mid-1970's made it apparent that to utilize the full potential of computer networks, international standards would be required. In 1977, the International Standards Organization (ISO) initiated work on Open Systems Interconnection (OSI) to address these requirements. This paper briefly describes the OSI Reference Model. The OSI Reference Model is the highest level of abstraction in the OSI scheme. The paper first describes the basic building blocks used to construct the network model. Then the particular seven-layer model used by OSI is briefly described, followed by a discussion of outstanding issues and future extensions for the model.

Published in:

Proceedings of the IEEE  (Volume:71 ,  Issue: 12 )