Subject: Re: Vlans with fxp nics
To: Peter Eisch <peter@boku.net>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: current-users
Date: 06/13/2003 19:18:52
On Wed, Jun 11, 2003 at 11:14:05PM -0500, Peter Eisch wrote:
> 
> The switch is a dell 3024.  Note though, I was scp'ing OUT through the fxp1
> interface.  Unless the ACKs coming back were huge, the issue shouldn't have
> been from the switch to the host.  The switch was seeing nothing but
> malformed frames.  Every so often something would trickle through, but
> nothing reliable.

Maybe a duplex mismatch then ?

> 
> This spun me off to another site where I have 1.6 with the ipf patches
> running on a Dell 350 (600MHz celeron, built-in fxp's).  Lo and behold I
> have issues here too.  So it's not a 1.6 or 1.6.1 issue specifically.  On
> this second site I also have a cisco 7204 running 802.1Q to  the same
> switch.  Not a single "Packet Error" on that port  in 116 days.  On the
> netbsd box though I have fxp0 is non-trunk and fxp1 in a trunk/vlan config.
> BOTH ports have some serious errors here too.  500,000 over the same period
> on the non-trunk port and 2,000,000 errors on the trunk/vlan port.
> 
> So cisco is happy with talking to the dell switch comparatively speaking:
> 97,660,566 packets with 486 input errors all CRCs.
> 
> I have a decent config for  testing this.  What should I look  at next or
> try?  Perhaps slip a tlp card in to see if the driver for that behaves
> differently?

Maybe try a different NIC, yes. I don't have any problems with 3c905, or
SMC etherpower II

--
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
     NetBSD: 24 ans d'experience feront toujours la difference
--