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Date: Wed, 02 May 2007 13:13:26 -0400
From: Chuck Swiger <cswiger@mac.com>
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Cc: freebsd-net@freebsd.org
Subject: Re: Unix friendly network testbench for FreeBSD?
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youshi10@u.washington.edu wrote:
> Hi,
>      I'm looking for a network testbench / simulator to stimulate known 
> networking conditions to test out a component for a product at work.
>      I was wondering if there was a network simulator available 
> (preferably open source) that's FreeBSD / Linux compatible which I can 
> simulate as real of a network as possible on a virtual machine / network.

Dummynet or ALTQ might be good starting points, as is netgraph, depending on 
just what you're trying to do.  There are also userland benchmark/analysis 
tools like flood pinging, netperf, & ab ("apache bench").

-- 
-Chuck