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Date: Thu, 4 Oct 2007 01:23:41 +0300
From: "Niki Denev" <nike_d@cytexbg.com>
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Subject: Re: FreeBSD as a gigabit router
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2007/10/4, Ivan Voras <ivoras@freebsd.org>:
> Cristian KLEIN wrote:
>
> > Can anybody point me what the bottleneck of this configuration is? CPU was
> > mostly idle and PCIe 1x should carry way more. Or is the experiment perhaps
> > fundamentally flawed?
>
> A "generic" problem in your case might be ICMP limiting which is turned
> on in FreeBSD by default. See net.inet.icmp.icmplim sysctl.
>
>

Also ping -f itself does not try to saturate the link to the max. The
manual states :

    -f  Flood ping.  Outputs packets as fast as they come back or one
    hundred times per second, whichever is more.

--
Niki