Switched Virtual Circuit

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What Does Switched Virtual Circuit Mean?

A switched virtual circuit (SVC) is a type of virtual circuit in telecommunication and computer networks that is used to establish a temporary connection between two different network nodes until completion of a data transfer session, after which the connection is terminated.

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Techopedia Explains Switched Virtual Circuit

SVCs are implemented in data, voice or video communication connection-based packet and circuit switching networks that have small or limited time usability. Typically, SVCs are created and managed by the data terminal equipment (DTE) or frame relay device.

A remote user requests a connection with the host server/device, and a virtual circuit/connection is created between both nodes. When the circuit connection’s purpose is complete, or it becomes idle, the SVC is suspended. For example, a SVC created between a remote user and server for a file download is closed when the download process is completed.

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Margaret Rouse
Technology expert
Margaret Rouse
Technology expert

Margaret is an award-winning writer and educator known for her ability to explain complex technical topics to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles in the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret’s idea of ​​a fun day is to help IT and business professionals to learn to speak each other’s highly specialized languages.