Virtual Channel Identifier
- Virtual Channel Identifier
A Virtual Channel Identifier (VCI) is a unique identifier which indicates a particular virtual circuit on a network. It is a 16-bit field in the header of an ATM cell. The VCI, together with the VPI (Virtual Path Identifier) is used to identify the next destination of a cell as it passes through a series of ATM switches on its way to its destination.
ATM switches use the VPI/VCI fields to identify the VCL (Virtual Channel Link) of the next network that a cell needs to transit on its way to its final destination. The function of the VCI is similar to that of the data-link connection identifier DLCI in Frame Relay and the Logical Channel Number & Logical Channel Group Number in X.25.
References
Cisco Systems "Multiband Switch and Service Configuration"
ee also
Virtual Path Identifier
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2010.
Look at other dictionaries:
Virtual Channel Identifier — Abbreviated VCI. In an Asynchronous Transfer Mode (ATM) cell header,a 16 bit field used to identify virtual channels between users or between users and networks. See also Asynchronous Transfer Mode … Dictionary of networking
Virtual Path Identifier — refers to an 8 bit (user to network packets) or 12 bit (network network packets) field within the header of an Asynchronous Transfer Mode packet. The VPI, together with the VCI (Virtual Channel Identifier) is used to identify the next destination … Wikipedia
Virtual Path Identifier — (VPI) est un identifiant de 8 bits (interface UNI) ou 12 bits (interface NNI) dans l entête des cellules Asynchronous Transfer Mode (ATM). Le VPI, avec le Virtual channel identifier (VCI) est utilisé pour identifier le circuit et la destination… … Wikipédia en Français
Virtual Path Identifier — Asynchronous Transfer Mode (ATM) ist eine Technik der Datenübertragung, bei der der Datenverkehr in kleine Pakete – Zellen oder Slots genannt – mit fester Länge (53 Byte, davon 48 Byte Daten, 5 Byte Zellkopf) codiert und über asynchrones… … Deutsch Wikipedia
Virtual Circuit Identifier — (VCI) est un identifiant de 16 bits dans l entête des cellules Asynchronous Transfer Mode (ATM). Le VCI, avec le Virtual Path Identifier (VPI) est utilisé pour identifier le circuit et la destination suivante de la cellule à travers les switches… … Wikipédia en Français
Virtual Circuit Identifier — A Virtual Circuit Identifier (VCI) is a unique identifier which indicates a particular virtual circuit on a network. It is a 16 bit field in the header of an ATM cell. The VCI, together with the VPI (Virtual Path Identifier) is used to identify… … Wikipedia
Virtual circuit — In telecommunications and computer networks, a virtual circuit (VC), synonymous to virtual connection and virtual channel, is a connection oriented communication service that is delivered by means of packet mode communication. After a connection… … Wikipedia
Channel 1 (North American TV) — In North America, channel 1 is a former broadcast (over the air) television channel. During the experimental era of TV operation Channel 1 moved around the lower VHF spectrum, swapping places with an early allocation for the FM broadcast band.… … Wikipedia
Payload Type Identifier — Abbreviated PTI. In an Asynchronous Transfer Mode (ATM) cell, a field contained in the 5 byte cell header that defines the type of information in the payload area, including user, network, and management information. See also Cell Loss… … Dictionary of networking
Identificador de Canal Virtual — Un Identificador de Canal Virtual (en inglés Virtual Channel Identifier, VCI) es un campo de 16 bits en el encabezado de una celda ATM. El VCI, junto con el VPI, se utilizan para identificar el próximo destino de una celda a medida que pasa a… … Wikipedia Español
