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Topic: Permanent virtual circuit

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	Virtual circuit - Wikipedia, the free encyclopedia
		A virtual circuit (VC) is a communications arrangement in which data from a source user may be passed to a destination user over more than one real communications circuit during a single period of communication, but the switching is hidden from the users.
		Switched virtual circuits (SVC) are generally setup on a per-call basis and are disconnected when the call is terminated; however, a permanent virtual circuit (PVC) can be established as an option to provide a dedicated circuit link between two facilities.
		A permanent virtual circuit (PVC) is a virtual circuit established for repeated use between the same data terminal equipments (DTE).
	en.wikipedia.org /wiki/Virtual_circuit (225 words)

	Permanent virtual circuit (Site not responding. Last check: 2007-10-09)
		Circuit de Losange Circuit de motocross permanent de Losange.
		Olympic Museum A virtual visit of the permanent exhibits, a virtual gallery with Nagano ceremonies, a philatelic and numismatic exhibition, concerts and conferences, a research centre.
		Circuit Breaker Industries Ltd - CBI Manufacturer of miniature and moulded case circuit breakers for overload and short circuit protection.
	www.serebella.com /encyclopedia/article-Permanent_virtual_circuit.html (704 words)

	Virtual circuit -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-09)
		A permanent virtual circuit (PVC) is a virtual circuit established for repeated use between the same (A collection of facts from which conclusions may be drawn) data (Station where transport vehicles load or unload passengers or goods) terminal equipments ((Click link for more info and facts about DTE) DTE).
		In a PVC, the long-term association is identical to the data (Transferring ownership) transfer (Any distinct time period in a sequence of events) phase of a virtual call.
		Permanent virtual circuits eliminate the need for repeated call (A group of things of the same kind that belong together and are so used) set-up and (The act of freeing from suspicion) clearing.
	www.absoluteastronomy.com /encyclopedia/v/vi/virtual_circuit.htm (227 words)

	Virtual circuit (Site not responding. Last check: 2007-10-09)
		A virtual circuit (VC) is a communications arrangement in which data from a source user may be to a destination user over more than real circuit configuration during a single period of but the switching is hidden from the
		Switched virtual circuits are generally set up on a per- call basis and are disconnected when the is terminated; however a permanent virtual circuit can be established as an option provide a dedicated link between two facilities.
		A permanent virtual circuit (PVC) is a circuit established for repeated use between the data terminal equipments (DTE).
	www.freeglossary.com /Virtual_circuit (282 words)

	PVC (Permanent Virtual Circuit) (Linktionary term)
		A virtual circuit is a pathway through a switched, mesh-type network that appears to be a dedicated, physically connected circuit.
		The virtual circuit is predefined and maintained by the end systems and nodes along the circuit, but the actual pathway through the packet-switched network may change due to routing around downed or busy connections.
		A PVC is a fixed circuit that is defined in advance by a public network carrier (or a network manager on an internal network).
	www.linktionary.com /p/pvc.html (262 words)

	Virtual circuit - Wikipedia, the free encyclopedia (Site not responding. Last check: 2007-10-09)
		A virtual circuit (VC) is a communications arrangement in which data from a source user may be passed to a destination user over more than one real circuit configuration during a single period of communication, but the switching is hidden from the users.
		Switched virtual circuits are generally set up on a per-call basis and are disconnected when the call is terminated; however, a permanent virtual circuit can be established as an option to provide a dedicated link between two facilities.
		Plain Old Telephone Service and ISDN telephone calls on the PSTN can be regarded as a simple form of switched virtual circuit.
	www.encyclopedia-online.info /Virtual_circuit (219 words)

	Playing the Net: Managing Frame Relay Traffic with a CIR (Site not responding. Last check: 2007-10-09)
		For example, a permanent virtual circuit of 128Kbps between New York and Omaha would imply a CIR of 128Kbps exists from Omaha to New York and the same in the other direction.
		For example, a PVC between New York and Omaha may have a port speed of 128Kbps in New York and a speed of 256Kbps in Omaha.
		In all cases, virtual circuits are typically able to exceed the rate established by the CIR through a process known as "bursting." However, the ability to burst depends largely on network conditions at the time, and can vary from moment to moment.
	www.unisysworld.com /monthly/2000/05/breit_0005.shtml (944 words)

	Chapter 22: X.25 PVC Commands (Site not responding. Last check: 2007-10-09)
		PVC table entries associate a physical port X.25 address and a protocol with a PVC.
		If a PVC logical channel number (LCN) does not exist in the PVC circuit table, then a switched virtual circuit (SVC) is allocated for that call.
		PVC LCN is the permanent virtual circuit logical channel number configured with the add x25 port pvc entry command.
	ericsson.com /support/datacom/UserDocumentation/12_2/olhcref/x25pvc.htm (1012 words)

	Using Permanent Virtual Circuits (Site not responding. Last check: 2007-10-09)
		Permanent virtual circuits (PVCs) must be acquired from the network provider.
		A PVC is similar to a "leased line" in that it is always connected and terminates at a single destination.
		A PVC is connected as long as X.25 Level 3 is active.
	docs.hp.com /en/36960-90058/ch06s04.html (541 words)

	Frame Relay
		Virtual circuits provide a bidirectional communication path from one DTE device to another and are uniquely identified by a data-link connection identifier (DLCI).
		After the virtual circuit is terminated, the DTE devices must establish a new SVC if there is additional data to be exchanged.
		PVC, permanent virtual circuit, is a permanent network connection that does not terminate when the transfer of data is complete.
	www.cisco.com /univercd/cc/td/doc/cisintwk/ito_doc/frame.htm (3455 words)

	ATM permanent virtual circuit (Site not responding. Last check: 2007-10-09)
		A permanent virtual circuit (PVC) is a specifically defined connection, through an ATM switch that is always present.
		PVCs require that you configure all physical paths to other LAN emulation clients into your ATM switch.
		In PVC mode, your system cannot receive its own frames (that is, you cannot ping yourself).
	www.redbooks.ibm.com /pubs/html/as400/v4r5/ic2924/info/RZAHIPVC.HTM (98 words)

	PVC - Permanent Virtual Circuit, PolyVinyl Chloride
		Many of these PVC products are used everyday and include everything from medical devices such as medical tubing and blood bags, to footwear, electrical cables; packaging, stationery, and toys.
		PVCs save bandwidth associated with circuit establishment and tear down in situations where certain virtual circuits must exist all the time.
		Permanent Virtual Circuit: This is a link with static route defined in advance, usually by manual setup.
	www.auditmypc.com /acronym/PVC.asp (525 words)

	4Reference \|\| Virtual circuit (Site not responding. Last check: 2007-10-09)
		POTS and ISDN telephone calls on the Public switched telephone network can be regarded as a simple form of switched virtual circuit.
		A permanent virtual circuit (PVC) is a virtual circuit established for repeated use between the same data terminal equipments (#redirect data terminal equipment).
		In a PVC, the long-term association is identical to the data phase of a virtual call.
	www.4reference.net /encyclopedias/wikipedia/Virtual_circuit.html (254 words)

	Terms and Definitions (Site not responding. Last check: 2007-10-09)
		In a network, an SVC (switched virtual circuit) is a temporary virtual circuit that is established and maintained only for the duration of a data transfer session.
		A permanent virtual circuit (Permanent Virtual Circuit) is a continuously dedicated virtual circuit.
		A virtual circuit is one that appears to be a discrete, physical circuit available only to the user but that is actually a shared pool of circuit resources used to support multiple users as they require the connections.
	networking.ringofsaturn.com /Tools/terms.cgi?Action=ViewTerm&id=354 (116 words)

	INTEGRATING ATM NETWORKING INTO BSD
		The virtual circuit number is composed of two numbers: the virtual channel identifier (VCI) and the virtual path identifier (VPI).
		Permanent virtual circuits are usually set up in an ATM switch by a network administrator.
		If the driver peeks at the first virtual circuit on the hardware service list and decides that it is finished with the virtual circuit, new data could arrive between the time the driver decides it is done with the virtual circuit and the time it removes the virtual circuit from the hardware service list.
	www.ccrc.wustl.edu /pub/chuck/tech/bsdatm/bsdatm.html (6327 words)

	PVC definition - isp.webopedia.com - The Glossary for Internet Service Providers
		Short for permanent virtual circuit, a virtual circuit that is permanently available.
		The only difference between a PVC and a switched virtual circuit (SVC) is that an SVC must be reestablished each time data is to be sent.
		PVCs are more efficient for connections between hosts that communicate frequently.
	isp.webopedia.com /TERM/P/PVC.html (114 words)

	SVC (Switched Virtual Circuit) (Linktionary term) (Site not responding. Last check: 2007-10-09)
		A virtual circuit is a predefined path through a packet-switched network.
		Virtual circuits improve performance for long transmissions but are not necessary for short transmissions.
		An SVC is a temporary virtual circuit that is set up on-the-fly, as opposed to a PVC (permanent virtual circuit), which is programmed into a network for continuous use.
	www.linktionary.com /s/svc.html (157 words)

	DIR - Permanent Virtual Connections (PVCs)
		A Permanent Virtual Connection is the term that describes that path data takes through a virtual network.
		A PVC is virtual because the although transmission path is really there and it works, it can't be be seen or touched.
		A "port" is the term used to describe where the access circuit connects to a network.
	www.dir.state.tx.us /store/tsd/data/pvcs.htm (1047 words)

	virtual circuit - Definition of virtual circuit by Webster's Online Dictionary (Site not responding. Last check: 2007-10-09)
		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.
		Not to be confused with switched virtual connection.
	www.webster-dictionary.org /definition/virtual%20circuit (103 words)

	Cisco Systems Frame Relay
		Switched virtual circuits (SVCs) are temporary connections used in situations requiring only sporadic data transfer between DTE devices across the Frame Relay network.
		Permanent virtual circuits (PVCs) are permanently established connections that are used for frequent and consistent data transfers between DTE devices across the Frame Relay network.
		These messages are used to periodically report on the status of PVCs, which prevents data from being sent into fl holes (that is, over PVCs that no longer exist).
	www.alliancedatacom.com /manufacturers/cisco-systems/framerelay_design/framerelay.asp (3455 words)

	Virtual circuit : Switched virtual circuit (Site not responding. Last check: 2007-10-09)
		In telecommunication, a virtual circuit (VC) is a communications arrangement in which data from a source user[?] may be passed to a destination user over various real circuit configurations during a single period of communication.
		A permanent virtual circuit (PVC) is a virtual circuit used to establish a long-term connection between data terminal equipments (DTE).
		It uses material from the wikipedia article Virtual circuit : Switched virtual circuit.
	www.eurofreehost.com /sw/Switched_virtual_circuit.html (276 words)

	DIR - Permanent Virtual Connections (PVCs)
		PVCs are a integral component of many circuits and connections to the Internet.
		The circuit is permanent because it is always available for use.
		Their virtual connection to the Internet is ready for use, 24/7.
	www.dir.texas.gov /store/tsd/data/pvcs.htm (1047 words)

	permanent revolution - Definition and Meaning of permanent revolution
		1: permanent press(noun) 1: a fabric that h...
		1:...plication of inks for the purpose of tattooing or permanent makeup (also known as micropigmentation).
		Some choose permanent makeup as a time saver or because they have physi...
	www.wordiq.com /reference/permanent+revolution (332 words)

	FRAME RELAY. Free term papers for college, book reports and research papers. Welcome to School Term Papers
		According to the LAN Times Encyclopedia of Networking, the Permanent Virtual Circuit (PVC) is a path in which the frame relay network connects two end points.
		Switched virtual circuits also can provide bandwidth-on-demand meaning that when the line is at its peak carrying information more bandwidth can be made available.
		Also switched virtual circuits allow charges for connection to be made only for what the customer uses, unlike leased lines where you have to pay a flat rate (828-829).
	www.schooltermpapers.com /essay/006789.html (1702 words)

	FrameRelay.Net - Contact
		Analogous to an X.25 permanent virtual circuit, a PVC (often referred to as a PVC) consists of the originating frame relay network element address, originating data link control identifier, terminating frame relay network element address, and termination data link control identifier.
		This is the maximum rate that data can burst to a virtual circuit.
		The network access circuit is the data pipe that connects the customer network to the frame relay point of presence (POP).
	www.framerelay.net /components.asp (323 words)

	Asynchronous Transfer Mode (Site not responding. Last check: 2007-10-09)
		Permanent virtual circuits (PVCs), in which connections are created manually
		Switched virtual circuits (SVCs), in which connections are made automatically
		See also permanent virtual circuit; switched virtual circuit.
	www.coffeycountyks.org /Terms/2461HTML-163.html (117 words)

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