Subject: Re: Strange network performance problem with -current and 1.6_BETA1
To: Markus W Kilbinger <>
From: Manuel Bouyer <>
List: current-users
Date: 06/10/2002 21:52:06
On Mon, Jun 10, 2002 at 02:57:32AM +0200, Markus W Kilbinger wrote:
> Hi!
> Within our intranet behind a firewall (running netbsd 1.6A with
> ipfilter/ipnat) I see the following strange network performance
> problem/difference in uploading files to the internet depending on
> 'who' is accessing the internet (via nat / ftpproxy):
> - If 'who' is a -current or 1.6_BETA1 machine (no matter what
>   hardware, I see it with i386, alpha, sparc, macppc) ftp upload to
>   the internet becomes incredibly slow (starting with about 80 kb/sec,
>   falling down to about 10 kb/sec).
> - Withinh the same network segment (same switch) 1.5_RC2 machines and
>   all other kinds of (un*x) machines we have upload to the same
>   internet destination is much faster (starts and maintains about 300
>   kb/sec).
> Does anybody else observe this behavior? What is 'the difference'
> between (-current, 1.6_BETA1) and at least 1.5_RC2 in handling such
> network connections?

Did you look at differences in sysctl settings ?

Manuel Bouyer <>