Subject: Re: poor network performance on de0's on 21164's.
To: Hal Murray <murray@pa.dec.com>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-alpha
Date: 07/10/1999 16:31:17
On Fri, Jul 09, 1999 at 08:57:33PM -0700, Hal Murray wrote:
> Sorry I didn't speak up sooner...
> 
> I thought it was well known that Tulips didn't work in full duplex 
> mode, at least at 100 megabits.  This should get added to the supported 
> hardware lists and such. 
> 
> This is not an Alpha-only problem.  It happens on Intel boxes too. 
> (It also happens on FreeBSD - same driver.) 
> 
> 
> I've had good luck with Intel 82558 cards (fxp).
> 
> 
> Can anybody confirm that older versions of the Tulip (21140?) work 
> at 100/full?  If so, that might give somebody a good hint to track 
> this down. 

I have tulip boards (21140 and 21141) working at 100Mbs FD. But for the
21140 I had to hardwire the board and switch. The negociation would
pick 10Mb/HD otherwise.
No problems with the 21141 (at last with my 3com switches :)

--
Manuel Bouyer <bouyer@antioche.eu.org>
--