Dear all,
on a brand new DELL computer CentOS 5.1 installs well, but the
internet connection is extremely slow (8 kB/s, indeed kiloBytes !).
Did anyone find a solution to that problem ? It might be more
DELL specific than CentOS specific.
Yours,
Peter
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> Peter Reinhardt | Ma?tre de Conf?rences <
> Lab. Chimie Th?orique | (HDR) <
> Universit? Paris VI | <
> 4 place Jussieu, case 137 | T?l.: +33(0)1 44 27 9657 <
> F -- 75252 Paris, France | Fax.: 4117 <
> email: Peter.Reinhardt at upmc.fr <
> Web: http://www.lct.jussieu.fr/pagesperso/reinh <
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On Mon, 16 Jun 2008, Peter Reinhardt wrote:> Dear all, > on a brand new DELL computer CentOS 5.1 installs well, but the > internet connection is extremely slow (8 kB/s, indeed kiloBytes !). > Did anyone find a solution to that problem ? It might be more > DELL specific than CentOS specific.That is why I would probably ask DELL support (or look to see if they have their own set of drivers for this model) and ask on their forums/mailinglist. PS It would probably help to say what DELL hardware or at least what brand/model of Network Interface Card to have any meaningful conversation :) -- -- dag wieers, dag at centos.org, http://dag.wieers.com/ -- [Any errors in spelling, tact or fact are transmission errors]
Hy, we are using mostly DELL Enterprise Hardware and have no problems. I think this could be a machine-based problem... What says ping, tracroute and maybe whireshark to the network connection to other local Computers? cheers Henrik Peter Reinhardt schrieb:> Dear all, > on a brand new DELL computer CentOS 5.1 installs well, but the > internet connection is extremely slow (8 kB/s, indeed kiloBytes !). > Did anyone find a solution to that problem ? It might be more > DELL specific than CentOS specific. > > > Yours, > Peter > > >
Dear Hendrik, Dag and Wealid,
thank you for the replies; to be more specific, here is some more info:
its a DELL Optiplex 755, with a 2 Gb/s onboard card. I did not write this
because the same happens with an additional, elder 3Com card and Fedora 9,
with a 2.6.25 kernel. Monitor and SATA disk work fine.
The computer is on a local switch together with an older computer, which
in turn communicates well at 25 MB/s with all the rest of the world.
At Dell's they propose a hardware support, however not for that model.
Nevertheless they support officially CentOS.
That's why I asked whether anyone had encoutered the same problem already,
and could perhaps provide a solution.
Yours,
Peter
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v v v v v v v v v v v v v v v v v v v v v
> Peter Reinhardt | Ma?tre de Conf?rences <
> Lab. Chimie Th?orique | (HDR) <
> Universit? Paris VI | <
> 4 place Jussieu, case 137 | T?l.: +33(0)1 44 27 9657 <
> F -- 75252 Paris, France | Fax.: 4117 <
> email: Peter.Reinhardt at upmc.fr <
> Web: http://www.lct.jussieu.fr/pagesperso/reinh <
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The computer is on a local switch together with an older computer, which in turn communicates well at 25 MB/s with all the rest of the world. At Dell's they propose a hardware support, however not for that model. Nevertheless they support officially CentOS. That's why I asked whether anyone had encoutered the same problem already, and could perhaps provide a solution. Yours, Peter I would recommend looking at your network speed/duplex negotiation with your switch. I suspect your switch may be full duplex and your network card half or vice versa. Try forcing your network card to various speed/duplex settings (and your switch if it is a decent managed unit) and re-try your testing. This is the most common cause of network performance issues. cheers