Techniques for distributing routing information using multicasts
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United States of America Patent
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Mar 31, 2009
Grant Date -
Feb 7, 2008
app pub date -
Aug 1, 2006
filing date -
Aug 1, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Techniques for sending routing data include sending first routing data in a first multicast packet to a number N of adjacent nodes. It is determined whether different routing data is ready to be sent in a different multicast packet. If so, then a number M of adjacent nodes from which acknowledgment messages have been received, and whether M exceeds a threshold, is determined. If so, then a Conditional-Receive (CR) method is invoked in which a multicast message is sent which identifies each of a number L=N−M of laggard adjacent nodes. The laggard adjacent nodes are thus notified to ignore the different multicast packet. If it is determined that M does not exceed the threshold, then additional acknowledgement messages are received while waiting until M does exceed the threshold before the CR method is invoked. The threshold is greater than or equal to 1.
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