H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 12/56 (2006.01) H04L 12/18 (2006.01)
Patent
CA 2445286
A method for multicast routing for a telecommunications network comprising a plurality of communication nodes interconnected by multiple paths, for the establishment of a multicasting connection between a source node and a plurality of destination nodes, in which the destination nodes are informed that a multicast connection request is arriving from a particular source. Each destination node then sends a connection request to the source, and these requests are processed and relayed by each node within the network. The requests are propagated from node to node until they reach the source node, carrying the information on the cost accumulated along the path. Finally, the source node, having received the information on the costs of the possible paths, selects the path which has a satisfactory cost.
Cette invention se rapporte à un procédé de routage multidiffusion pour un réseau de télécommunications comprenant plusieurs noeuds de communication reliés entre eux par de multiples trajets, en vue d'établir une connexion multidiffusion entre un noeud source et plusieurs noeuds de destination, lesquels sont informés lorsqu'une demande de connexion multidiffusion arrive en provenance d'une source particulière. Chaque noeud de destination envoie alors une demande de connexion à la source, et ces demandes sont traitées et relayées par chaque noeud du réseau. Les demandes se propagent de noeud à noeud, jusqu'à atteindre le noeud source, tout en véhiculant l'information relative au coût qui s'accumule à mesure que le trajet est parcouru. Après avoir reçu l'information relative aux coûts des trajets possibles, le noeud source sélectionne alors le trajet qui présente un coût satisfaisant.
Caviglia Diego
Fiaschi Giovanni
Lazzeri Francesco
Ericsson Ab
Ericsson Canada Patent Group
Marconi Communications Spa
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