Re: DS21143 and BNC (10Base2)

[Jay Estabrook <Jay Estabrook compaq com>]

On Wed, Jun 28, 2000 at 01:18:20AM -0700, Phil Carmody wrote:
> On Tue, 27 June 2000, olle.hansson@home.se wrote:
> 
> > Hi i have a problem whith my onboard DS21143 nic (PWS433a)
> > 
> > Im trying to use media BNC insted of 10baseT.
> > 
> > 10baseT work fine..
> > Im using the tulip driver.
> > 
> > the console says etho0 transmit timed out, switching to 10base2 media.
> > and still wont work.
> 
> Similar but different: 
>
> On a 164UX4/533, my 21143 refuses to work with the tulip drivers. I
> get no messages printed or logged anywhere, and the hub's 100/10
> like lights are on. On switching to the de4x5 driver (the tulip
> documentation recommends you switch im almost all cases to this
> driver) I am unable to use 100Mb, and from AUTO it reverts to 10Mb.
> When recounting this tale in the past some people said "some of the
> chips are flaky, when they work they're lovely - when they don't
> they're 'orrid. Just put up with it." or words to that effect.

Best luck I've had on a UX was using "tulip" as a module; don't ask
me why it didn't work when built into the kernel... :-\

And I don't think it's the chips that are "'orrid'", often its the
surrounding infrastructure when they are built into mobos that seems
to miss the boat (refer to all the problems with 21143 on MIATA
reported over the years on axp-list, etc).  The PCI board versions
usually are better behaved, IMHO.

--Jay++

-----------------------------------------------------------------------------
Jay A Estabrook                            Alpha Engineering - LINUX Project
Compaq Computer Corp. - MRO1-2/K20         (508) 467-2080
200 Forest Street, Marlboro MA 01752       Jay.Estabrook@compaq.com
-----------------------------------------------------------------------------