Abstract: Communication protocols are the sets of rules and formats necessary for the effective exchange of information within a data communication system. The three elements of a communication protocol are syntax semantics and timing. Communication protocols must exist on a range of levels, from the physical interconnection at one extreme to the application responsible for generating and processing the data at the other. It is useful, therefore, to think of protocols as layered, with, each layer interacting with the layers above and below. This is an important concept and one which leads directly to the ISO seven-layered model for OSI. The seven layers that constitute a communication system are: physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer.
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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