Caltech protocol: 8,609 Mbps

[Doctor Q]

California Institute of Technology press release:

Caltech computer scientists have developed a new data transfer protocol for the Internet fast enough to download a full-length DVD movie in less than five seconds.

Using standard packet size that is supported throughout today's networks, the current TCP typically achieves an average throughput of 266 Mbps, averaged over an hour, with a single TCP/IP flow between Sunnyvale near SLAC and CERN in Geneva, over a distance of 10,037 kilometers. This represents an efficiency of just 27 percent. The FAST TCP sustained an average throughput of 925 Mbps and an efficiency of 95 percent, a 3.5-times improvement, under the same experimental condition. With 10 concurrent TCP/IP flows, FAST achieved an unprecedented speed of 8,609 Mbps, at 88 percent efficiency, that is 153,000 times that of today's modem and close to 6,000 times that of the common standard for ADSL (Asymmetric Digital Subscriber Line) connections.

Cal Tech posted a list of article links. There is also a BusinessWeek article about FAST, dated April 7, 2003 and titled Connections That Leave Broadband in the Dust. I think only subscribers can read it online.

 

[pseudobrit]

Caltech computer scientists have developed a new data transfer protocol for the Internet fast enough to download a full-length DVD movie in less than five seconds

In an unrelated story, an RIAA agent was released on bond yesterday after pleading not guilty to killing half a dozen Caltech computer scientists. He has since disappeared.

 

[kettle]

did I just add two plus two and make five?

 

[Doctor Q]

First, multi-gigabit/sec throughput is achieved in the laboratory. Then ISPs will provide it to high-paying customers. Then Internet sites will start taking advantage of it to provide services that requires such bandwidth. Then there will be more demand for it. Then ISPs will sell it to more customers. After a while, everyone will expect it.

Then multi-terabit/sec throughput will be achieved in the laboratory...


Parent: Bedtime!

Child: Hold on, I need 5 minutes to download the entire sum of mankind's knowledge into this credit card sized device. The one from yesterday is out of date.

 

[maradong]

interesting achievement,
unfortunatly, i can only see it in our hands in about 10 years. The avarage throughput is 4 gbts. that sounds quiete difficult to achieve.
another problem is that the signals will not be able to get over large distances in that time. Glasfibre cables can only reach about 1500 km without amplifier. So how shall it be possible to make a copper cable make that trhougput ?