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Virtual Circuit

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Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM.

A virtual circuit is a point-to-point communication link between two end stations on a switched network (ATM, frame relay, IP, or Internet). A virtual circuit is designed to emulate the characteristics of a physical circuit on a switched network. An example of a physical circuit is the analog telephone line between your home and the telephone company central office. It is physical wire that is dedicated to single call. No one else uses it. The bandwidth is not shared.

This topic continues in "The Encyclopedia of Networking and Telecommunications."

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