Re: dc still reporting collisions

On Sat, 15 Nov 2003, Jos Backus wrote:

> On Sat, Nov 15, 2003 at 05:23:08PM +1000, Andy Farkas wrote:
> > Jos Backus wrote:
> >
> > > Fwiw, I'm seeing the same with tx(4):
> >
> > Looks like a different problem.
>
> Probably. I was commenting on the (relatively) high collision count I'm
> seeing. This is a hub (DSL router) with 2 PC's on it. I have never seen this
> many collisions happening before. Plus I can no longer transfer files from the
> Windows system to the FreeBSD system (even using FTP), something that worked
> flawlessly at least until October 17th. So something is broken. You think it
> could be hardware?

If its a real hub, hubs aren't full duplex.

If its a switch, the switch and PC might not have negoatiated full duplex
properly. Try unplug/replug the cable, or switch to autoselect.

>
> Thanks,
> Jos
>
> > > lizzy:~% ifconfig tx0
> > > tx0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> > >         inet 10.0.0.2 netmask 0xffffff00 broadcast 10.0.0.255
> > >         inet 10.0.0.10 netmask 0xffffffff broadcast 10.0.0.10
> > >         ether 00:e0:29:09:e4:1a
> > >         media: Ethernet autoselect (10baseT/UTP)
> > >         status: active
> > > lizzy:~% netstat -i
> > > Name    Mtu Network       Address              Ipkts Ierrs    Opkts Oerrs  Coll
> > > tx0    1500 <Link#1>      00:e0:29:09:e4:1a   154423     1   118093     0   253
> > > tx0    1500 10/24         lizzy               159162     -   122841     -     -
> > > tx0    1500 10.0.0.10/32  lizzy-proxy             28     -       28     -     -
> > > lo0   16384 <Link#2>                            5347     0     5347     0     0
> > > lo0   16384 your-net      localhost              442     -      442     -     -
> > > lizzy:~%
> >
> > The dc(4) driver currently has an almost 1:1 ratio of packets:collisions.
> > Your tx0 is quite low.
> >
> > Seishi Hiragushi <s-hrgsh_at_lapis.plala.or.jp> reported this 1.5 months ago:
> >
> > Message-Id: <20030902071657.1e94e2b4.s-hrgsh_at_lapis.plala.or.jp>
> >
> >
> > --
> >
> >  :{ andyf_at_speednet.com.au
> >
> >         Andy Farkas
> >     System Administrator
> >    Speednet Communications
> >  http://www.speednet.com.au/
> >
> >
> >
> >
> > !DSPAM:3fb5d46c649171139613270!
> >
> >
>
>

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite_at_gumbysoft.com          |  www.FreeBSD.org