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virtual circuit

   Also found in: Acronyms, Wikipedia 0.03 sec.
virtual circuit
(1) A temporary communications path created between devices in a switched communications system. For example, a message from New York to Los Angeles may actually be routed through Atlanta and St. Louis. Within a smaller geography, such as a building or campus, the virtual circuit traverses some number of switches, hubs and other network devices.

(2) A logical circuit within a physical network. The actual lines may be shared by other users at the same time, but the virtual circuit appears exclusive to the users who are communicating with each other. The terms "permanent virtual circuit" and "virtual private network" also describe this kind of logical circuit. See packet switching, VPN, PVC and SVC.
(networking)virtual circuit - A connection-oriented network service which is implemented on top of a network which may be either connection-oriented or connectionless (packet switching).

The term "switched virtual circuit" was coined needlessly to distinguish an ordinary virtual circuit from a permanent virtual circuit. (One of the perpetrators of this confusion appears to be ["Networking Essentials", 1996, Microsoft Press, ISBN 1-55615-806-8], a book aimed at people preparing for the MCSE exam on LANs and WANs).

Not to be confused with switched virtual connection.


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The solution allows for faster problem resolution by looking at all virtual circuits simultaneously and capturing IP conversations on any specific protocol across all autodiscovered virtual circuits.
If there's a problem on a particular switched virtual circuit, the FAA needs to know about it, and fast," explains Murphree.
SanteraOne delivers the robust, full-featured performance needed in today's network environment, including IXC Tandem, Voice over Broadband, and comprehensive Class 5 functionality with LNP, CALEA, GR-303 interfaces, switched virtual circuits and support for E911.
 
 
 
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