Multiplex communications – Fault recovery – Bypass an inoperative switch or inoperative element of a...
Reexamination Certificate
2001-09-25
2010-11-09
Moe, Aung S (Department: 2474)
Multiplex communications
Fault recovery
Bypass an inoperative switch or inoperative element of a...
C370S229000, C370S230100, C370S234000, C370S231000, C370S243000, C370S358000, C370S389000, C370S390000, C709S223000, C709S225000
Reexamination Certificate
active
07830787
ABSTRACT:
A multicast transmission scheme is introduced. A multicast data stream is sent on a default tunnel and switched to a data tunnel during flooding conditions. The default tunnel is a point-to-multipoint tunnel from, for example, a source provider edge router to all other provider edge routers in a virtual private network. The data tunnel is a point-to-multipoint tunnel from, for example, a source provider edge router to other provider edge routers that have recipients. Flooding conditions can occur when sending the multicast data stream on the default tunnel, for example, when a specified bandwidth threshold has been exceeded on a source provider edge router. Additionally, the data tunnel is created by selecting a multicast distribution tunnel group from a configured pool of addresses, advertising the group, receiving data joins from, for example, provider edge routers with recipients, and waiting a specified send time.
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Boers Arjen
Cai Yiqun
Speakman Tony
Wijnands IJsbrand
Campbell Stephenson LLP
Cisco Technology Inc.
Grey Christopher P
Moe Aung S
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