Virtual tributary/tributary unit transport method and apparatus

Details Virtual tributary/tributary unit transport method and apparatus Virtual tributary/tributary unit transport method and apparatus

H - Electricity

04

J

H04J 14/08 (2006.01) H04J 3/16 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2149371

A virtual tributary (VT) or tributary unit (TU) of a selected size is multiplexed with transport overhead and further multiplexed with framing bandwidth of an underlying transport technology for providing a virtual tributary/tributary unit plus transport link overhead plus transport framing for transport on a selected transport technology. This enables individual virtual tributaries/tributary units to be transported with defined line overhead and using existing transport technology framing. Several examples of underlying transport technologies used in conjunction with selected transport formats for VT-1.5 and VT-2 superframes are shown.

Un tributaire virtuel (VT) ou une unité tributaire (TU) est multiplexé avec un signal de service de transmission ainsi qu'avec un signal de verrouillage de trame d'une technologie de transmission sous-jacente pour produire un tributaire virtuel ou une unité tributaire associé à un signal de service de liaison de transmission et à un signal de verrouillage de trame en vue d'une transmission sur une technologie sélectionnée. Ceci permet de transmettre les tributaires virtuels ou les unités tributaires individuelles avec des signaux de service de liaison définis en utilisant un verrouillage de trame de technologie de transmission courante. Plusieurs exemples de technologies de transmission sous-jacentes utilisées conjointement avec des formats de transmission sélectionnés pour des supertrames VT-1.5 et VT-2 sont donnés.

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