On Fri, Nov 06, 1998 at 03:45:47AM -0300, Juan J. Sierralta P. wrote:
> Wolfgang Walter wrote:
>
> >
> > Does it usually? I have now bad experiences with DE530CT+ and DFE500TX, both
> > dec chipsets. Nor with their switches. I never used other cards from d-link.
> >
> > Wolfgang Walter
> >
>
> Ups... my router has two DFE-500TX one atached to Fore 10BT Switch and
> another
> to a 100BTX Dlink Switch, sometimes the cards just torn to slow, a ping
> to and
> adjacent machine takes 1000 ms ! At another net guys have the same conf
> that mine
> i.e a PC with two DFE 500TX and have the same problems.
>
> These two routers have pretty good net load.
>
> What kernel and drivers versions are you using ?
> Are you working with tulip or de4x5 ?
I use the tulip-driver and a 2.0.34/35 kernel. I had similar problems with
kernel 2.0.32. The reason was that the driver sometimes switched the card into
full-duplex mode, as I detected with tulip-diag.
Though, I didn't have any problems since then, though I sometimes a lot of
traffic. The cards are board revision c6.
I heard from a lot of people that they had problems with dec based 100mbit
cards. On the other hand, some people I know told me that they have similar
problems you describe with cards from other vendors, and that independly of the
OS used. They disappeared by using switches instead of hubs. I have the
impression that some 100mbit cards tend to behave 'unstable' if there is
a lot of load on the net: they seem not to get access to the net. Maybe this
a characteristic of ethernet which shows more drastic with 100mbit.
>From my experience ethernet tends to favour the sender which sent the last
packet if it is willing to send another one.
Wolfgang Walter
--
Veni, Vidi, VISA:
I came, I saw, I did a little shopping.
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