Messages in this thread | | | Date | Mon, 16 Jan 2006 14:38:07 -0500 | Subject | Re: no carrier when using forcedeth on MSI K8N Neo4-F | From | (Lennart Sorensen) |
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On Fri, Jan 13, 2006 at 04:38:13PM -0600, Christopher Friesen wrote: > Lennart Sorensen wrote: > > >Gigabit does NOT use cross over cables. > > I don't think this is always true. Some gigabit ports can autosense > polarity and are able to use standard cables. Others require gigabit > crossover cables.
Hmm, it appears you are right. I have never seen a non autosensing gigabit port, so I thought it was part of the spec. Given the pairs all send and receive already it seemed like an obvious part to include in the spec.
Certainly a cross over cable made for 10/100 mbit won't work. It needs the other two pairs swapped to. Most store bought cross over cables seem to only have 10/100mbit in mind when they were made.
Proper pinout appears to be: 1 <-> 3 2 <-> 6 4 <-> 7 5 <-> 8
Len Sorensen - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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