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Cc: freebsd-questions@freebsd.org
Subject: Re: Typical Network Performance
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"Jason C. Wells" <jcw@speakeasy.net> wrote:
> By process of elimination (swap cables, swap ports, try different
> host pairs) I was able to discover that a single server on my home
> LAN was getting about 1.6% performance compared to other servers
> getting 94%
...
> What would be the next step to figuring out why this host's network
> performance is slow?

My next step would be to check whether this host and its hub/switch
port agree on speed and duplex -- occasionally some combination
of netcard phy and switch type gets the negotiation wrong.  Duplex
mismatch, in particular, can have huge performance impact.