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Date: Thu, 30 Oct 2003 12:48:32 -0500 (EST)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
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To: Barney Wolff <barney@databus.com>
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cc: current@freebsd.org
Subject: Re: jumbograms (& em) & nfs a no go
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<<On Thu, 30 Oct 2003 12:34:15 -0500, Barney Wolff <barney@databus.com> said:

> Just a minor note: GigE should not require a crossover cable.  It's
> supposed to work to connect two GigE adapters with a straight-thru
> cable.  I verified this with two Intel em NICs, quite a while ago.

This should hardly be surprising, since 1000BASE-TX transmits and
receives bidirectionally on all four pairs simultaneously.

> As I recall, when I used a crossover cable, I could not get the
> adapters to go to 1000, only 100.  That might have been the cable,
> or not.

That's at least conceivable; I don't know enough about the wire
protocol to tell whether that's supposed to happen or not.

-GAWollman