isochronous service

   A method of transmitting real-time data using preallocated bandwidth on a communications link, allowing time-synchronized transmissions with very little delay. Isochronous service is required for real-time data such as synchronized voice and video, in which delays in packet delivery would be unacceptable.
   Asynchronous Transfer Mode (ATM) can provide isochronous service because its cells are always the same size, so it is possible to guarantee accurate and timely delivery of packets. Other networks can provide isochronous service by using a priority scheme to dedicate bandwidth to video traffic.

Dictionary of networking . 2014.

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