You might want to check out this thread:
http://mail-index.netbsd.org/tech-kern/2006/03/24/0000.html

And you might want to start considering upgrading to 3.0.  Although I
assume you're only using one cpu in the 335.

On 3/27/06, Rimantas Petrauskas <rimantas@remo.lt> wrote:
> Hi,
>
> i'm using NetBSD 2.0.1 on IBM x335 machine. It is internet gateway for
> about 2000 clients. I'm monitoring "/usr/sbin/ipfstat -hio" stats with
> MRTG and when in/out packets reaches 90000000, the server seems to have
> some problems. It looks like packets are droped or something. Can anyone
> give me a realy good link on "How to tune up NetBSD for high traffic
> networks" or something like that? Or maybe you could paste some usefull
> sysctl or kernel values, because i am not realy good at this point.
>
> Thanks
>
>
>
> --
> Pagarbiai,
> Rimantas Petrauskas,
> UAB "Remo televizija"
> Tinklo administratorius
> Mob. tel.: 8-685-74915
> E-mail: rimantas@remo.lt
>
>
>