Method and arrangement for network resource administration

Details Method and arrangement for network resource administration Method and arrangement for network resource administration

H - Electricity

04

L

H04L 12/52 (2006.01) H04L 12/403 (2006.01) H04L 12/407 (2006.01) H04L 12/42 (2006.01) H04L 12/64 (2006.01)

Patent

CA 2241554

The present invention relates to a method and an arrangement for centralized and distributed management of the capacity in a circuit-switched network with a bus or ring structure, especially a network of DTM-type (Dynamic Synchronous Transfer Mode), which network uses a bandwidth which is partitioned in cycles, which in turn are partitioned in control time slots for signalling and data time slots for transfer of data, and wherein each data time slot is associated with a token. In the centralized version, a first node, called server node, is allocated tokens corresponding to all data time slots which are flowing in one direction in a bus or a ring. A second node is requesting tokens corresponding to a certain capacity from the server node, and the server node makes reservations for and transfers tokens corresponding to requested capacity to the other node in event the server node has requested capacity unutilized. The number of server nodes in the distributed version is between two and the total number of nodes in the bus or ring.

L'invention porte sur un procédé et une structure de gestion centralisée de la capacité d'un réseau public commuté avec structure à bus ou à anneau, et plus spécialement du type à transfert dynamique en mode synchrone utilisant une largeur de bande divisée en cycles qui à leur tour sont divisés en créneaux temporels de commande servant à la signalisation et en créneaux temporels de données servant à la transmission de données et associés chacun à un jeton. Dans la version centralisée, un premier noeud, dit noeud serveur, se voit attribuer des jetons correspondant à tous les créneaux temporels de données circulant dans un sens dans un bus ou un anneau, tandis qu'un second noeud requiert des jetons correspondant à une certaine capacité du noeud serveur lequel prévoit des emplacements pour des jetons puis les transfert en fonction de la capacité requise vers l'autre noeud au cas où le noeud serveur ait requis de la capacité inutilisée. Dans la version distribuée, le nombre de noeuds serveurs est compris entre deux et le nombre total de noeuds du bus ou de l'anneau.

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