Subject: Re: problem with three identical 3Com NICs
To: David Laight <david@l8s.co.uk>
From: Thomas Bohnert <bohnert@ccrle.nec.de>
List: tech-net
Date: 04/15/2003 13:57:48
> IMHO you shouldn't even consider using an ISA ethernet card in a system
> that has a PCI bus.  The performance of the ISA bus is comparable to
> that of the ethernet network.
> Trying to use 3 cards will lead to packet loss.

You think it is not possible to use 3 cards concurrent? 
My motherboard is an old asus p1s55... with 3 isa and 4 pci slots. If i'm not 
misstaken, i need pci NICs to set my router ?

Thomas


On Tuesday 15 April 2003 12:48, David Laight wrote:
> On Tue, Apr 15, 2003 at 12:21:59PM +0200, Lucio De Re wrote:
> > On Tue, Apr 15, 2003 at 10:35:08AM +0200, Thomas Bohnert wrote:
> > > > Presumably these are ISA cards?  Not even PnP?
> > >
> > > yes you are right, actually they are.
> >
> > I prefer them to almost anything else, hang on to them, they're great
> > for small networks.
>
> IMHO you shouldn't even consider using an ISA ethernet card in a system
> that has a PCI bus.  The performance of the ISA bus is comparable to
> that of the ethernet network.
> Trying to use 3 cards will lead to packet loss.
>
> > But I'll be surprised if the kernel can't handle properly configured
> > 3COM cards.  Just remember that ISA does not allow I/O or IRQ
> > sharing.
>
> IRQ sharing is possible, most ISA systems and many ISA cards support
> 'active low' shared interrupts.
>
> 	David

-- 
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Thomas Bohnert, Student
e-mail: thomas.bohnert@ccrle.nec.de
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