adding 1G ethernet to a 100M network

CLIFFORD ILKAY clifford_ilkay-biY6FKoJMRdBDgjK7y7TUQ at public.gmane.org
Thu Jul 29 20:28:48 UTC 2010


On 07/29/2010 04:00 PM, Lennart Sorensen wrote:
> On Thu, Jul 29, 2010 at 03:42:20PM -0400, aaron d wrote:
>> That may be, but it is a violation of the IEEE802.3ab spec that states
>> autoneg is mandatory for GigE and above.
>
> Yeah there is that part too, since GigE requires it for pin assignment
> and master selection.  I suspect this port was 100Mbit Full Duplex
> (not 100Gbit as originally stated), so GigE rules don't apply.

Oops, sorry. That was a typo. It wasn't 100Gbit. It was a 1Gbit port 
that had been set to 100Mbit/s full-duplex. I don't know why it wasn't 
possible to set that port to auto-negotiate.
-- 
Regards,

Clifford Ilkay
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