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Internetworking Technologies Handbook, Fourth Edition by Cisco Systems, Inc.

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Chapter 34. Open System Interconnection Protocols

Objectives

  • Introduce the OSI protocol, used primarily to facilitate multivendor equipment interoperability.

  • Discuss the structures and functioning of this protocol, from its introduction in the early 1980s.

Background

The Open System Interconnection (OSI) protocol suite is comprised of numerous standard protocols that are based on the OSI reference model. These protocols are part of an international program to develop data-networking protocols and other standards that facilitate multivendor equipment interoperability. The OSI program grew out of a need for international networking standards and is designed to facilitate communication between hardware and software systems despite differences in underlying ...

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