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Date:      Fri, 8 Jun 2001 10:09:00 -0700 (PDT)
From:      Philip Hallstrom <philip@adhesivemedia.com>
To:        Christoph Sold <so@server.i-clue.de>
Cc:        <freebsd-questions@FreeBSD.org>
Subject:   Re: Strange one-sided network slowdown...
Message-ID:  <20010608100650.Y78321-100000@oddjob.adhesivemedia.com>
In-Reply-To: <3B21055B.1F4DD2AB@i-clue.de>

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Yes, the hub is connected to rl0... so if I explicity set half-duplex on
rl0 I'll be fine?

Something like:

ifconfig rl0 inet 10.2.0.1 netmask 255.255.255.0 mediaopts half-duplex

?
thanks!

-philip

On Fri, 8 Jun 2001, Christoph Sold wrote:

> If your hub is connected to rl0, you're running into trouble.
> Unfortunatley, you did not explain which interface is connected to which
> device.
>
> Philip Hallstrom schrieb:
> >
> > I'm not sure how to check my laptop's duplex, here's what is on my
> > gateway:
> >
> > philip@wombat:~% ifconfig -au
> > xl0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> >         inet 207.202.235.154 netmask 0xffffff00 broadcast 207.202.235.2=
55
> >         inet6 fe80::210:5aff:fe10:b021%xl0 prefixlen 64 scopeid 0x1
> >         ether 00:10:5a:10:b0:21
> >         media: autoselect (100baseTX <full-duplex>) status: active
> >         supported media: autoselect 100baseTX <full-duplex> 100baseTX
> > 10baseT/UTP <full-duplex> 10baseT/UTP 100baseTX <hw-loopback>
> > rl0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
> >         inet 10.2.0.1 netmask 0xffffff00 broadcast 10.2.0.255
> >         inet6 fe80::250:baff:fed1:b12c%rl0 prefixlen 64 scopeid 0x2
> >         ether 00:50:ba:d1:b1:2c
> >         media: autoselect (none) status: active
> >         supported media: autoselect 100baseTX <full-duplex> 100baseTX
> > 10baseT/UTP <full-duplex> 10baseT/UTP 100baseTX <hw-loopback>
> > lo0: flags=3D8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
> >         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x9
> >         inet6 ::1 prefixlen 128
> >         inet 127.0.0.1 netmask 0xff000000
> >
> > However, if it was a duplex problem wouldn't I see that when transferin=
g
> > from my laptop to the gateway and from the net to my laptop (which I ca=
n
> > get about 80kb/s)???
>
> Having duplex mismatched will only cause problems when your box tries to
> send while traffic arrives: the sent package will invalidate the package
> recieved simultaneosly, rendering both packets invalid.
>
> HTH
> -Christoph Sold
>
> > On Fri, 8 Jun 2001, Christoph Sold wrote:
> >
> > > Check if both your laptop's and your gateways NICs are properly set t=
o
> > > half duplex.
> > >
> > > HTH
> > > -Christoph Sold
> > >
> > > Philip Hallstrom schrieb:
> > > >
> > > > Hi all -
> > > >         I recently reconfiged my home network.  My gateway is a P40=
0
> > > > running 4.2-20010214-STABLE.  The internal interface is rl0 (a D-Li=
nk
> > > > card).  The network basically looks like this:
> > > >
> > > > net --- dsl modem --- gateway --- hub --- laptop
> > > >
> > > > Everything works just fine except transferring *from* the gateway *=
to* the
> > > > laptop (~10kb/s).
> > > >
> > > > Transfering *from* the laptop *to* the gateway (~130kb/s) is fine.
> > > > Transfering from/to the gateway/laptop to/from the net maxes out at=
 my DSL
> > > > speed.
> > > >
> > > > I know there used to be a problem with D-Link cards, but I am prett=
y sure
> > > > that was fixed around 4.2 and I would think the problem would exist=
 in
> > > > both directions.
> > > >
> > > > Anyone have any ideas why this is happening?  It doesn't matter the
> > > > transfer method either (HTTP or FTP).
> > > >
> > > > Any help appreciated...
> > >
>
> --
> Freundliche Gr=FC=DFe aus Waiblingen
>
> Christoph Sold
> --
> Systemadministrator, i-clue GmbH, Endersbacher Str. 57, 71334 Waiblingen
> Fon: (0 71 51) 9 59 01-12, Fax: (0 71 51) 9 59 01-55, Mail: so@i-clue.de
>


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