[2586] in linux-net channel archive
Re: ethernet cards and cable connection
daemon@ATHENA.MIT.EDU (SkiBum)
Thu Apr 18 19:43:16 1996
Date: Thu, 18 Apr 1996 20:37:06 -0300 (ADT)
From: SkiBum <p7gz@unb.ca>
To: "Sheldon E. Newhouse" <sen@math.msu.edu>
cc: linux-net@vger.rutgers.edu
In-Reply-To: <199604181752.NAA10714@chaos>
On Thu, 18 Apr 1996, Sheldon E. Newhouse wrote:
> I have a high speed commercially provided internet connection. It runs
> on the same cable as my cable TV. I presume that the signals are
> carried at different frequencies.
> It seems to work fine using a cheap NE2000 ethernet card on my linux
> box, but when I try a PCI card--I have tried SMC 8432 and 3COM 590 --
> things don't work. So, I presume that it there some 'frequency
> filtering' going on with the NE2000 clone which is not going on with the
> other cards. I would like to understand this. Can anyone suggest some
> literature related to this kind of thing. The other cards work fine on
> my local net.
>
> Thanks,
> -Sheldon
>
> ---------------------------------------------------------------------------
> | Sheldon E. Newhouse | mail: newhouse@math.msu.edu |
> | Mathematics Department | www: http://www.mth.msu.edu/~sen |
> | Michigan State University | telephone: 517-355-9684 |
> | E. Lansing, MI 48824-1027 USA | FAX: 517-432-1562 |
> ---------------------------------------------------------------------------
My local cable company is supposed to be providing a service that
sounds that the one you are describing some time soon. They are running
ATM over cable. The data runs in a seperate frequency range than the
regular cable signal. I believe that that it is about 4Mbit/sec.
It is ATM running lan emulation. The cable plugs into a cable
modem, and the ethernet card plugs into it. If you have an ATM card in
your computer, the you can do straight ATM.
In this type on scenario, I cannot see what difference that the
different network cards would make. The technology is still rather new,
so maybe the cable modem cannot keep up with the network card, and it is
pulling to fast.
Brad Borgald Networks
Computing Services University of New Brunswick
Fredericton New Brunswick, Canada, Electrical Engineering
p7gz@unb.ca root@rmon1.csd.unb.ca bborgald@hhnov1.unb.ca
Linux! Solomon, No Fear! GUS PnP, The North Face
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