Packet communications network and communications method

Details Packet communications network and communications method Packet communications network and communications method

H - Electricity

04

L

H04L 12/42 (2006.01) H04L 12/43 (2006.01) H04L 12/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2077027

A packet communications network for transmitting data between nodes by the use of cell slots circulating the network includes a center node inserted in the ring network for sequentially generating, at a selected rate, first and second types of cell slots interleavingly for transmitting first and second types of data, respectively. Each cell slot has a type code for identifying either one of the first and second types, and a status code for identifying the different status of the cells. Each node detects whether the received cell is the first type or the second type. If the received cell is the first type, it is used for transmitting the connection-oriented data under MARS system. If the received cell is the second type, it is used for transmitting the connectionless data under ATMR system.

L'invention est un réseau de communication à commutation de paquets servant à transmettre des données entre des noeuds au moyen de cellules en circulation. Ce réseau comprend un noeud central servant à produire séquentiellement, à un débit sélectionné, des cellules d'un premier et d'un second type entrelacées pour la transmission de données d'un premier et d'un second type respectivement. Chaque cellule est affectée d'un code de type permettant de distinguer le premier du second type, et d'un code d'état permettant de distinguer les différents états des cellules. Chaque noeud détermine si la cellule reçue appartient au premier ou au second type. Quand elle est du premier type, elle est utilisée pour transmettre les données orientées connexions par l'intermédiaire d'un système MARS. Si elle est du second type, elle est utilisée pour transmettre les données sans connexion par l'intermédiaire d'un système ATMR.

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