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Date:      Sun, 18 Jan 2004 22:12:34 -0600 (CST)
From:      Mike Silbersack <silby@silby.com>
To:        CHOI Junho <cjh@kr.FreeBSD.org>
Cc:        freebsd-net@freebsd.org
Subject:   Re: FreeBSD -> Windows HTTP TCP performance
Message-ID:  <20040118220617.P5672@odysseus.silby.com>
In-Reply-To: <20040115.224407.41715339.cjh@kr.FreeBSD.org>
References:  <20040113.225411.74714267.cjh@kr.FreeBSD.org> <20040115.224407.41715339.cjh@kr.FreeBSD.org>

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On Thu, 15 Jan 2004, CHOI Junho wrote:

> For those who interested, I made packet dump file:
>
>   http://www.kr.freebsd.org/~cjh/misc/freebsd-net/
>
> Best thing is do tcpdump at client machine but I have no admin
> permission, so failed.
>
> --
> CHOI Junho <http://www.kr.FreeBSD.org/~cjh>;     KFUG <cjh at kr.FreeBSD.org>

I can read these fine, Andre must be going through some web proxy that
corrupts them. :)

All of the computers in the dumps are on a LAN, right?  There seems to be
quite a bit of packet loss going on, from what I can see.  This is most
certainly the cause of low throughput; we'd need tcpdumps from both ends
to really determine if there's some suboptimal tcp interaction between w2k
and freebsd.  (From a single side of the connection, we can't even be sure
if retransmissions are getting through, etc.)

Mike "Silby" Silbersack



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