Re: Weird slow network problem...
Dan Everton wrote:
>
> On Tue, 24 Aug 1999, Aaron Solochek wrote:
> > If its not too much of a pain in the ass you might want to try switching the
> > oomputers around to see if the problem is in the campus infastructure. Are you in
> > the same dorm? Are they switched or shared connections? If you live in different
> > dorms, or areas, it could be that the uplinks to his hub/switch could be slow. Do
> > others have any problem like this?
> >
> > -Aaron Solochek
> > leko@cmu.edu
>
> Well, he's two doors up from me so we should be on the same switch/hub.
> The other thing though, that make me think that's it's not hardware
> (including network hardware) is that Windows does not exhibit these
> problems, so it's almost definitely something Linux is doing different.
>
> And no, I haven't heard of anybody else with similar problems which is
> unfortunate.
>
> Dan
>
> >
> >
> > Dan Everton wrote:
> >
> > > On 24 Aug 1999, Jens Ritter wrote:
> > > > Dan Everton <z1159684@cit.gu.edu.au> writes:
> > > >
> > > > > The weirdest part about this is that he has identical network card
> > > > > (RTL-8029, using the ne2k-pci driver), identical kernel (2.2.11), identical
> > > > > Debian install (potato as of yesterday) and identical config (except for the
> > > > > IP address of course :). I have no problems transferring files at full
> > > > > speed both locally and externally, he does.
> > > >
> > > > Interrupts and other cards are the same, too?
> > > >
> > > > What do you mean by locally and externally? Two cards in different
> > > > directions?
> > > >
> > > > Jens
> > >
> > > No interrupts and other cards are not the same. I have an ISA VIBRA16 and
> > > he has an ISA ESS688, I have an PCI S3 ViRGE, he has a PCI Tseng ET6000, I
> > > have a Voodoo2, he doesn't. It's not a hardware problem as far as I can tell
> > > because it only affects external links not local ones.
> > >
> > > As for what I mean by locally and externally... we both live on campus at
> > > university and are connected to the residential network. Traffic within
> > > this network is fine and goes at full speed for my friend. The residential
> > > network is connected (through a firewall) to the university network.
> > > Traffic to this network is extremely slow for my friend but normal
> > > ethernet speeds for me. I hope that clears it up.
> > >
> > > The other weird aspect of this problem is that transfers made by a machine
> > > outside the residential network to his machine go at full ethernet speed
> > > as well. For example, using ftp on an machine outside the
> > > residential network to copy a file to his machine goes at about 200kB/s.
> > > Using ftp to copy a file from his machine to a machine outside the
> > > residential network goes in ~30kB/s bursts with a few seconds between
> > > bursts. I get roughly same speed (200kB/s) in both directions. If it helps
> > > the external machine we're connecting to is a Sun box running SunOS 5.6.
> > >
> > > Oh, and before you think it's an ftp problem, this affects all other
> > > protocols (including ICMP if the bing results are any indication). And
> > > there's no measurable packet loss.
> > >
Again, a shot in the dark, and probably useless. Is his Linux side using
the same IP address as the Windows98 side? If you're using DHCP, you
might temporarily firmcode the Win98 IP address on the Linux side and
see if that makes a difference. Probably not, but maybe worth a try.
Also, is his NIC on the same IRQ/IOBase on the two platforms? Perhaps
that might lead to a clue.
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