Method of inter-rpr-ring bridge redundancy

Details Method of inter-rpr-ring bridge redundancy Method of inter-rpr-ring bridge redundancy

H - Electricity

04

L

H04L 12/42 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2622131

A redundancy protection method for bridge mode resilient packet ring, which sets priorities for each across ring bridge device; the across ring bridge devices locate in both RPR bridge rings constitute a protection group, one across ring bridge device within the protection group is set as main across ring bridge device which is in charge of forwarding packets, and the other devices are set as backup across ring bridge devices; when the protection group changes, the following steps are performed: A. setting the across ring bridge device which is capable of forwarding across rings and has top priority as the main across ring bridge device. By utilizing the method provided in this invention, fast recovery of the RPR bridge ring can be realized after changing of the RPR bridge ring occurs, therefore it ensures using the service on the RPR bridge ring normally, as well as reduces the network communication delay, and reduces the loads of the network communication.

L'invention concerne un procédé de protection de redondance pour anneau de paquet résiliant de mode pont qui permet d'établir des priorités pour chaque dispositif de pont en anneau traversant. Ces dispositifs permettent de localiser dans les deux anneaux de pont RPR un groupe de protection. Un dispositif de pont en anneau traversant au sein du groupe de protection est établi comme dispositif principal chargé de transmettre des paquets et les autres dispositifs sont établis en tant que dispositifs de sécurité. Lorsque le groupe de protection change, les étapes suivantes sont réalisées, à savoir, (A) l'établissement du dispositif de pont en anneau traversant capable de transmettre des anneaux traversants et possédant une priorité supérieure comme le dispositif de pont en anneau traversant principal. L'utilisation dudit procédé permet de réaliser une récupération rapide de l'anneau du pont RPR après modification de l'anneau de pont RPR, il garantit l'utilisation du service sur cet anneau de pont RPR, et il permet de diminuer le délai de communication du réseau et les charges de la communication du réseau.

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