Apparatus and methods for restoring traffic during failover...

H - Electricity – 04 – L

Patent

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Details

H04L 12/56 (2006.01) H04B 1/74 (2006.01) H04L 1/22 (2006.01) H05K 10/00 (2006.01)

Patent

CA 2474587

Disclosed are methods and systems for guaranteeing restoration of traffic betwee one or more cable modems and a backup cable modem termination system upon failue of an active cable modem termination system. Subscriber information associated with one or more cable modems is received from an active cable modem termination system. The subscriber information includes one or more subscriber identifiers. he subscriber information may include a primary subscriber identifier that ident fies a particular cable modem as well as a secondary subscriber identifier thats assigned to high priority traffic such as that being transmitted in real-time. In addition, the subscriber information may also include a scheduling type thats further used to categorize the real-time traffic, such as into voice or video raffic. The subscriber information is then prioritized in an order in which the ransmission of messages between the one or more cable modems and the backup cabl modem are to be restored. For instance, the subscriber information may be prior tized according to time of receipt of the subscriber information, presence of se ondary subscriber identifier, and/or scheduling type. The cable modems are the olled according to this priority order.

L'invention porte sur des procédés et des appareils assurant le rétablissement du trafic entre un ou plusieurs câbles-modems et le système d'extrémité d'un câble-modem de secours lors d'une panne du système d'extrémité d'un câble-modem actif. Des informations sur les abonnés associés à un ou plusieurs câbles-modems reçues du système d'extrémité du câble-modem actif contiennent un ou plusieurs identificateurs d'abonnés. Ces informations sur les abonnés peuvent comporter: un identificateur d'abonné primaire identifiant un câble-modem particulier; un identificateur d'abonné secondaire attribué au trafic prioritaire tel que celui transmis en temps réel; et également un type de programmation utilisé ultérieurement pour classer le trafic en temps réel, par exemple en trafic vocal ou vidéo. Les informations sur les abonnés sont alors classées dans l'ordre de priorité de rétablissement de la transmission des messages entre un ou plusieurs câbles-modems et le câble-modem de secours; ces priorités peuvent également être établies en fonction du moment de réception de l'information sur l'abonné, de la présence d'un identificateur d'abonné secondaire, et/ou du type de programmation. Les câbles-modems sont alors amenés à entrer en action selon l'ordre de priorité défini.

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