virtual connection - ορισμός. Τι είναι το virtual connection
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Τι (ποιος) είναι virtual connection - ορισμός

MEANS OF TRANSPORTING DATA OVER A PACKET-SWITCHED NETWORK SO AS TO EMULATE A DEDICATED PHYSICAL LINK BETWEEN NODES
Permanent virtual circuit; Virtual call capability; Virtual circuit capability; Virtual call facility; Switched virtual circuit; Private virtual circuit; Virtual circuits; Virtual circuit switching; Virtual connection; WAN Virtual Circuits; Switched virtual circuits; Permanent virtual circuits; Virtual Circuit; Virtual channel (computer networking)

virtual connection         
<networking> 1. (VC) A connection or a path through an ATM network. The word "virtual" indicates that the connection is logical rather than physical. Nothing to do with a virtual circuit on a packet switching network. [Fred Halsall, "Data Communications, Computer Networks and Open Systems", 1996, Addison Wesley]. 2. A communications link that appears to be a direct connection between sender and receiver, although physically the link can be routed through a more circuitous path, running over virtual circuits instead of a private network built primarily with dedicated lines. A virtual connection can provide full-time connection among many sites, including those configured for SNA/SDLC protocol. A virtual connection can handle any transmission protocol and is supported worldwide. It can provide high throughput and low delay for LAN and Internet applications, peer-to-peer connectivity, client-server computing, and other distributed processing applications. [Same as virtual circuit?] (2001-10-26)
Virtual circuit         
A virtual circuit (VC) is a means of transporting data over a packet-switched network in such a way that it appears as though there is a dedicated physical link between the source and destination end systems of this data. The term virtual circuit is synonymous with virtual connection.
Permanent Virtual Circuit         
<networking> (PVC, or in ATM terminology, "Permanent Virtual Connection") A virtual circuit that is permanently established, saving the time associated with circuit establishment and tear-down. (1997-10-06)

Βικιπαίδεια

Virtual circuit

A virtual circuit (VC) is a means of transporting data over a data network, based on packet switching and in which a connection is established within the network between two endpoints. The network, rather than having a fixed data rate reservation per connection, like in circuit switching, takes advantage of the statistical multiplexing on its transmission links (an intrinsic feature of packet switching, well suited to data traffic). In addition, VCs standardized by the CCITT in 1976 impose per-connection flow controls at all user-to-network and network-to-network interfaces. They thus eliminate the need for the network to lose user packets in heavily loaded network zones, an intrinsic feature of datagram networks for their congestion control.

Before a connection or virtual circuit may be used, it must be established between two or more nodes or software applications by means of call setup. After that, a bit stream or byte stream may be delivered between the nodes; hence, a virtual circuit protocol allows higher-level protocols to avoid dealing with the division of data into Protocol data units.

Many virtual circuit protocols, but not all, provide reliable communication service through the use of data retransmissions invoked by error detection and automatic repeat request (ARQ).

An alternative to virtual-circuit networks are datagram networks.

Παραδείγματα από το σώμα κειμένου για virtual connection
1. During the visit, he promised to participate in writing a "good neighbors" blog (www.gnblog.com) in which Israeli and Arab bloggers participate, but his virtual connection with Israel began even before the war.