Re: Strange network problem, overrun and frame errors
From: Karl D (k_dal2_at_hotmail.com)
Date: 10/17/03
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Date: 17 Oct 2003 11:15:44 -0700
David, thanks for your input.
Some more information:
> What nic (or related output from 'lspci -v')? I had trouble using Netgear
> FA310TX with newer tulip modules (so I stuck with old_tulip module in
> latest 2.2 kernel until PC died).
lspci -v
:
00:0f.0 Ethernet controller: Linksys Network Everywhere Fast Ethernet
10/100 model NC100 (rev 11)
Subsystem: Accton Technology Corporation: Unknown device 1216
Flags: bus master, medium devsel, latency 32, IRQ 11
I/O ports at ec00 [size=256]
Memory at d8000000 (32-bit, non-prefetchable) [size=1K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: <available only to root>
The PC came with this built in ethernet controller. I don't even know
what
chip set is used in this NC100 controller.
Driver version (This was the one distributed in MDK 8.2, Kernel is
2.4.18):
dmesg | grep Tulip
Linux Tulip driver version 0.9.15-pre9 (Nov 6, 2001)
A side note:
After some experimentation with mii-tool setting yesterday
and harddrake (Mdk's network administration tool)
the connection now seems to have been permanently broken.
I cannot even start dhcpcd to connect with the router.
Running ifup returns: Link is down after a long long time.
I'm checking all the config files and network-scripts
in /etc from back-up CD but I haven't found any differences.
I'v tried connecting the ethernet cable to other ports of the
router without success. (The router is working since I have both
a Win98 machine as well as a Sun Sparc10 connected and working
in dhcp mode).
Is it possible that various reconfiguration through the
tulip driver can cause permanent damages/changes on the NIC,
which is not resolved through power off/reboot? I guess
my question is if the NIC settings are stored in
some non-destructive memory (EEprom/Flash).
Thanks
/
Karl D.
efflandt@xnet.com (David Efflandt) wrote in message news:<slrnbos935.a6m.efflandt@typhoon.xnet.com>...
> On 15 Oct 2003 00:31:40 -0700, Karl D <k_dal2@hotmail.com> wrote:
> > I was wondering if anyone might have an idea on the reason of some
> > error messages and traffic slowdown I sometimes experience
> > on my Linux system (Mandrake 8.2).
> > I get a couple of frame/overrun errors per day
> >
> > eth0 Link encap:Ethernet HWaddr 00:10:DC:60:C7:DC
> > inet addr:192.168.1.100 Bcast:192.168.1.255 Mask:255.255.255.0
> > UP BROADCAST NOTRAILERS RUNNING MULTICAST MTU:1500 Metric:1
> > RX packets:128485 errors:23 dropped:0 overruns:23 frame:23
> > TX packets:99175 errors:54 dropped:0 overruns:0 carrier:0
> > collisions:0 txqueuelen:100
> > RX bytes:126063867 (120.2 Mb) TX bytes:15081824 (14.3 Mb)
> > Interrupt:11 Base address:0xec00
> >
> > and in the log file I sometimes get messages of type:
> >
> > Oct 12 22:00:21 kaktus kernel: NETDEV WATCHDOG: eth0: transmit timed
> > out
> > Oct 12 22:00:21 kaktus kernel: eth0: Transmit timed out, status fc664
> > 010, CSR12 00000000, resetting...
> >
> > and a significant slowdown. I never seem to completely lose the connection
> > though. A significant slowdown seems to happen when there is a lot of
> > network demanding applications running simultaneously (ftp,apache,
> > sshd,telnet,browsing). Sometimes the NIC even get stalled and the only
> > way to recover is through reboot.
> >
> > The network driver I have is tulip. The NIC is connected to a Linksys
> > BEFSR41 Router/switch.
>
> A floating MTU does sound strange. If you just had packet loss, I would
> think it would be more irregular (just some lost pings).
>
> What nic (or related output from 'lspci -v')? I had trouble using Netgear
> FA310TX with newer tulip modules (so I stuck with old_tulip module in
> latest 2.2 kernel until PC died). Newer tulip modules with that nic would
> either not work until it received traffic (latest 2.2 tulip) or would stop
> working overnight (early 2.4 tulip).
>
> I also had trouble with some distros trying to use tulip module for old
> 10baseT integrated real DEC chip (in which case de4x5 module worked
> better). But that does not sound like your problem if it is 10/100 nic.
>
> I have had incompatiblities with switch ports on Linksys EFSP42
> switch/printserver. The ethernet port of my Linksys WAP11 v2.2 will not
> work on it, and a 3com nic gets 20-100% packet loss when connected to it.
> I also had an SMC router/switch that was incompatible with PC card nics
> unless they were switched to 10baseT (full duplex worked). You might try
> following just to see if it makes a difference:
>
> mii-tool -A 10baseT-FD,10baseT-HD eth0
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