Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing
Reexamination Certificate
2002-01-28
2010-06-15
Najjar, Saleh (Department: 2455)
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
C709S207000, C709S223000, C725S114000, C725S116000, C725S117000, C725S111000, C725S091000, C370S241000, C370S242000
Reexamination Certificate
active
07739393
ABSTRACT:
Disclosed are methods and apparatus for guaranteeing restoration of traffic between one or more cable modems and a backup cable modem termination system upon failure of an active cable modem termination system are disclosed. Subscriber information associated with one or more cable modems are received from an active cable modem termination system. The subscriber information includes one or more subscriber identifiers. For instance, the subscriber information may include a primary subscriber identifier that identifies a particular cable modem as well as a secondary subscriber identifier that is assigned to high priority traffic such as that being transmitted in real-time. In addition, the subscriber information may also include a scheduling type that is further used to categorize the real-time traffic, such as into voice or video traffic. The subscriber information is then prioritized in an order in which the transmission of messages between the one or more cable modems and the backup cable modem are to be restored. For instance, the subscriber information may be prioritized according to time of receipt of the subscriber information, presence of secondary subscriber identifier, and/or scheduling type. The cable modems are then polled according to this priority order.
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Chandran Kartik
Khaunte Sunil
Lu Yong
Zhang Jin
Cisco Technology Inc.
Najjar Saleh
Nguyen Thuong T
Weaver Austin Villeneuve & Sampson LLP
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