Virtual Circuit Identifier - определение. Что такое Virtual Circuit Identifier
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Что (кто) такое Virtual Circuit Identifier - определение

DIGITAL TELECOMMUNICATIONS PROTOCOL FOR VOICE, VIDEO, AND DATA
Asyncronous Transfer Mode; Virtual channel identifier; Asynchronus Transfer Mode; ATM (Asynchronous Transfer Mode); Virtual Path Identifier; ATM NIC; Atm nic; Virtual path identifier; Virtual circuit identifier; Real-time multimedia over ATM; Real-time multimedia over ATM(RMOA); RMOA; Virtual Channel identifier; Virtual Circuit Identifier; Virtual Channel Identifier; Asynchronous transfer mode (ATM); Asynchronous transfer mode; ATM switch
  • ATM switch by FORE systems
  • PCI]] network interface card

Virtual Circuit Identifier         
<networking> (VCID) An identifier used for the routing of a virtual circuit. An ATM switch may route according to a Virtual Circuit Identifier, a Virtual Path Identifier, or a combination. (2001-05-16)
Virtual circuit         
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)
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.
virtual circuit         
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)
<networking> 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. (2001-10-26)

Википедия

Asynchronous Transfer Mode

Asynchronous Transfer Mode (ATM) is a telecommunications standard defined by the American National Standards Institute and ITU-T (formerly CCITT) for digital transmission of multiple types of traffic. ATM was developed to meet the needs of the Broadband Integrated Services Digital Network as defined in the late 1980s, and designed to integrate telecommunication networks. It can handle both traditional high-throughput data traffic and real-time, low-latency content such as telephony (voice) and video. ATM provides functionality that uses features of circuit switching and packet switching networks by using asynchronous time-division multiplexing.

In the OSI reference model data link layer (layer 2), the basic transfer units are called frames. In ATM these frames are of a fixed length (53 octets) called cells. This differs from approaches such as Internet Protocol (IP) or Ethernet that use variable-sized packets or frames. ATM uses a connection-oriented model in which a virtual circuit must be established between two endpoints before the data exchange begins. These virtual circuits may be either permanent (dedicated connections that are usually preconfigured by the service provider), or switched (set up on a per-call basis using signaling and disconnected when the call is terminated).

The ATM network reference model approximately maps to the three lowest layers of the OSI model: physical layer, data link layer, and network layer. ATM is a core protocol used in the synchronous optical networking and synchronous digital hierarchy (SONET/SDH) backbone of the public switched telephone network and in the Integrated Services Digital Network (ISDN) but has largely been superseded in favor of next-generation networks based on IP technology. Wireless and mobile ATM never established a significant foothold.