Transport protocol for efficient aggregation of heterogeneous lossy paths
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United States of America Patent
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Apr 19, 2011
Grant Date -
Oct 22, 2009
app pub date -
Apr 18, 2008
filing date -
Apr 18, 2008
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A transport protocol that achieves improved performance in an environment where paths are lossy and a plurality of paths are employed to transfer data, essentially in parallel, from a source to a destination. The protocol is implemented with the aid of an aggregate flow manager (AFM) at the source that considers and controls the data flow through the plurality of paths. With some preselected regularity the AFM determines a number of packets to be included in a Forward Error Correction (FEC) block of packets, creates the block, and transmits the segments of the block over the plurality of paths. As necessary, the destination sends information to the source of what additional information needs to be sent. This additional information might be reactive error correcting (RFEC) packets, or a retransmission of the missed packets.
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