[75082] in North American Network Operators' Group
Re: why upload with adsl is faster than 100M ethernet ?
daemon@ATHENA.MIT.EDU (Joe Shen)
Mon Nov 1 21:17:27 2004
Date: Tue, 2 Nov 2004 10:15:31 +0800 (CST)
From: Joe Shen <joe_hznm@yahoo.com.sg>
To: Dave Crocker <dcrocker@brandenburg.com>, NANGO <nanog@merit.edu>
In-Reply-To: <20041117621.623387@bbprime>
Errors-To: owner-nanog-outgoing@merit.edu
Thanks.
I've done the experiments. The reason is: the 100Mbps
ethernet is so fast that it could fill the buffer of
bottleneck link very quickly ( Path_mtu, burstness of
traffic). There may also exist ACK compression in
reverse path .
Joe
--- Dave Crocker <dhc2@dcrocker.net> wrote:
> On Fri, 15 Oct 2004 00:14:11 -0800, Joe Shen wrote:
> > |-(ADSL)--------\
> > customer/
> --Edge_router---...---Japan Server
> > \-(100Methernet)-/
>
>
> it is probably worth doing an experiment, by placing
> a target host
> just before the edge router, inside your net, and
> verify that you do
> not get the (bad) differential performance there.
>
>
> d/
> --
> Dave Crocker
> Brandenburg InternetWorking
> +1.408.246.8253
> dcrocker a t ...
> www.brandenburg.com
>
>
>
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