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Date: Fri, 11 Jul 2008 08:07:32 +0300
From: "Artis Caune" <artis.caune@gmail.com>
To: a_gaviola@yahoo.com.ph
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References: <44627.52285.qm@web76615.mail.sg1.yahoo.com>
Cc: freebsd-net@freebsd.org
Subject: Re: [Regarding Packet Error]
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On Thu, Jul 10, 2008 at 5:27 PM, Archimedes Gaviola
<a_gaviola@yahoo.com.ph> wrote:
> Hi,
>
> I'm running a FreeBSD-6.2 RELEASE system on an Intel Gigabit copper NIC
> but when it receive packets, I encounter some errors with netstat. Below is
> the netstat dump of my system. As what you can see, there is no dropping of
> packets received but only errors at the input level of the interface. Does
> anyone have any idea of what's going on at the entry of the packets? What
> could be the possible causes of packet errors? Or what network data has
> been collected in the netstat when it displays error? Can someone
> explained how FreeBSD process packets when it enters the network system
> in the kernel? This is to know how my system behaves before doing any step
> for troubleshooting.

have you enabled polling on interface? try to disable if yes.
is it pci or pci64/x interface?

try to set the following variables in /boot/loader.conf and reboot:
hw.em.rxd=4096
hw.em.txd=4096