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Date: Mon, 19 Sep 2005 19:30:26 -0400
From: Chuck Swiger <cswiger@mac.com>
Organization: The Courts of Chaos
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To: Daniel Pocock <daniel@lvdx.com>
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Cc: freebsd-isp@freebsd.org
Subject: Re: FreeBSD, quagga (BGP) and 2950 VLANs
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Daniel Pocock wrote:
[ ... ]
> I'm also curious about whether FreeBSD supports polled rather than 
> interrupt driven behaviour in the NIC driver - that means that the 
> system won't keep on re-entering an interrupt handler concurrently while 
> under load (when a DoS attack is in progress).

Indeed it does, see "man polling".
Make sure you increase HZ to at least 1000...

-- 
-Chuck