923 Mbps across the Ocean ...

Sat Mar 8 18:20:10 UTC 2003

At 10:09 PM 07-03-03 +0100, Mikael Abrahamsson wrote:

>On Fri, 7 Mar 2003, Richard A Steenbergen wrote:
>
> > Production commercial networks need not apply, 'lest someone realize that
> > they blow away these speed records on a regular basis.
>
>What kind of production environment needs a single TCP stream of data
>at 1 gigabit/s over a 150ms latency link?
>
>Just the fact that you need a ~20 megabyte TCP window size to achieve this
>(feel free to correct me if I'm wrong here) seems kind of unusal to me.

See: http://www.psc.edu/networking/perf_tune.html for many details of 
tuning your TCP stack.  Interesting that most of the links lead to places 
like PSC, VT, ANL, ORNL, UofHannover and NLANR.  If commercial ISPs have 
been doing this stuff "on a regular basis", please let us know where it is 
documented since it is a bit well hidden.

-Hank

>--
>Mikael Abrahamsson    email: swmike at swm.pp.se