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Re: Query The FCC has released their High-Speed Internet Status report
From: David Farber <dave () farber net>
Date: Fri, 21 Mar 2008 04:21:17 -0700
________________________________________ From: Steven M. Bellovin [smb () cs columbia edu] Sent: Thursday, March 20, 2008 8:00 PM To: David Farber Cc: tlauck () madriver com Subject: Re: [IP] Re: Query The FCC has released their High-Speed Internet Status report On Thu, 20 Mar 2008 07:54:26 -0700 David Farber <dave () farber net> wrote:
Does anyone have statistics for the actual performance of broadband service in Japan or other Asian countries? I don't mean marketing numbers or theoretical peak access link speed, I mean sustained throughput, e.g. when moving a 300 megabyte file. I mention this, because I happen to manage a site that sells downloads of CD quality audio that keeps records of the file transfer performance experienced by the customers. (The server is located in downtown Chicago.) I have never seen high download rates from Asia. The highest rates come from the U.S. and from Europe. (I presume that most of the customers are using a residential broadband service.) My data is purely anecdotal, but if Asian broadband service is really as good and ubiquitous as some claim I would expect to have seen higher performance by now. Or is the problem with submarine cable bandwidth?
Latency matters a lot, as does proper tuning of the send buffer and receive window in TCP. That said, I'll match your anecdote with one of my own. A friend of mine who lives in Tokyo says that he can get 80M bps data transfer between his apartment and a colo facility in Seattle. --Steve Bellovin, http://www.cs.columbia.edu/~smb ------------------------------------------- Archives: http://www.listbox.com/member/archive/247/=now RSS Feed: http://www.listbox.com/member/archive/rss/247/ Powered by Listbox: http://www.listbox.com
Current thread:
- Re: Query The FCC has released their High-Speed Internet Status report David Farber (Mar 20)
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- Re: Query The FCC has released their High-Speed Internet Status report David Farber (Mar 21)