System and method for switching from a unicast to a...

Details System and method for switching from a unicast to a... System and method for switching from a unicast to a...

2011-04-05

2011-04-05

Levitan, Dmitry H (Department: 2461)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

Reexamination Certificate

active

07920562

ABSTRACT:
A communications system and method provide a seamless switch from a first session to a plurality of multicast sessions. A server transmits data over both a first session and alternatingly between a plurality of synchronized multicast sessions. At predetermined time intervals, the server stops transmitting data over the currently active multicast session and starts transmitting over an idle multicast session. The server is further responsive to a request to stop transmitting the data over the first session at a time when the server alternates transmission between the multicast sessions. The time intervals are advantageously sufficient to allow a receiver to join an idle multicast channel and to send a request to stop the data transmission over the first session.

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