Wednesday, October 21, 2009

Don't shrug at ATLAS 2009

Thanks to @kerryritz for the pointer on this very interesting presentation on the ATLAS Internet Observatory 2009 findings from the NANOG conference. The most interesting findings from my point of view are: 1) the rapid concentration of content sources (only 150 ASNs account for 50% of internet traffic, with CDNs accounting for 10% and Google alone for 6%); and, 2) the apparent decline of P2P in favor of streaming and direct download, although I find it notable that the authors point out that data is distorted by random port selection and the fact that 40% of P2P is encrypted.

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