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Submission + - Fujitsu's New Data Transfer Protocol 30 Times Faster than TCP ( 1

hypnosec writes: Japan based technology giant, Fujitsu, has announced a new data transfer protocol that is capable of transferring data up to 30 times faster than that of currently used Transmission Control Protocol (TCP). The new technology, which is a proprietary, has been developed through a software-only approach and is based on User Datagram Protocol (UDP) that is used in streaming media. Even though UDP is a stateless protocol, Fujitsu’s technology has been developed such that it can differentiate between dropped packers and those which haven’t managed to reach the intended destination. Fujitsu carried out tests between US and Japan and the results were amazing – a 30 times improvement over TCP communications in data transfer throughput and a reduction in packet delivery latency to a sixth of previous levels.
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Fujitsu's New Data Transfer Protocol 30 Times Faster than TCP

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  • TCP is fundamentally flawed in design in that throughput decreases as latency increases for a given TCP window size. To increase throughput you have to increase window size, but for a high latency link like US -> Japan you need a window size of a rather large window size, approaching 40MB per connection for a 1Gb link. TCP window scaling (part of RFC 1323) was designed to assist with this but its adoption was slow, Microsoft didn't turn it on by default until Vista and then found that many home routers

Q: How many IBM CPU's does it take to execute a job? A: Four; three to hold it down, and one to rip its head off.