Techniques for reliable switchover to a date multicast...

Details Techniques for reliable switchover to a date multicast... Techniques for reliable switchover to a date multicast...

2006-05-25

2011-11-29

Ryman, Daniel J (Department: 2466)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C370S256000, C370S312000, C370S390000

Reexamination Certificate

active

08068481

ABSTRACT:
Techniques reliably provide the switchover from a default MDT to the data MDT by using reliable signaling and reliable building of a data MDT. The message notifying of the pending switchover to the data MDT is reliably sent using signaling that is reliable. Also, the switchover from the default MDT to the data MDT does not happen until all egress routers have responded to the message. Egress routers join the data MDT if associated receivers are interested in receiving the multicast stream from a source. The router does not send another response upstream until all egress routers downstream from it respond to the message in the positive or the negative.

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