Date: Sat, 15 Nov 2003 20:27:44 +0000 From: Ceri Davies <setantae@submonkey.net> To: freebsd-current@freebsd.org Subject: Re: dc still reporting collisions Message-ID: <20031115202744.GG60410@submonkey.net> In-Reply-To: <20031115071458.GA29973@lizzy.catnook.com> References: <20031115164720.I13393@hewey.af.speednet.com.au> <20031115071458.GA29973@lizzy.catnook.com>
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On Fri, Nov 14, 2003 at 11:14:36PM -0800, Jos Backus wrote:
> On Sat, Nov 15, 2003 at 04:52:14PM +1000, Andy Farkas wrote:
> > The dc(4) driver is still reporting collisions on 100 Mbit full-duplex
> > links:
> [snip]
> > > netstat -i
> > Name Mtu Network Address Ipkts Ierrs Opkts Oer=
rs Coll
> > dc0 1500 <Link#1> 00:00:e8:89:b9:66 26463 0 26737 132=
53 225301
>=20
> Fwiw, I'm seeing the same with tx(4):
>=20
> lizzy:~% ifconfig tx0
> tx0: flags=3D8843<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:~%=20
>=20
> It's gotten so bad that I can no longer transfer files from a Windows sys=
tem
> to this FreeBSD system (both are on the same 10BaseT hub). I only rarely =
used
> to see collisions before, and filetransfers have always worked just fine.=
Last
> time I know for sure this worked was October 17th.
These probably are actual collisions though. The OP's point is that collis=
ions
are supposed to be impossible on a full duplex link, whereas in your situat=
ion
they aren't.
Ceri
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