Denis Heidtmann wrote: > Thanks for all the information. You have saved me from a fruitless > bunch of tests. I do not claim to have gotten my head around all the > stuff in those links, but I have the impression that if the NIC is > misbehaving during the autonegotiation process I have no reasonable > way to find that out. > > The connection has not had a failure for some days now (many shutdowns > and reboots, but no interruption of power to the modem or the > computer), even though renegotiation is likely happening often. Also, > when failure occurs the only thing which appears to fix it is to shut > down and power down the computer. I conclude from this that most > likely the NIC occasionally gets into a bad state during power-up. > > Do you see this as an accurate assessment? I think we did veer a bit of course. But the auto-net theory & testing was to figure out if it's a physical problem with the hw nic or if it's a software (driver, tcp/ip stack, OS) level issue.
We're still left w. the fact that thus far the only diff you've noticed between a working and non-working network connection is the presence or non-presence of the "1000baseT" advertised mode. So, the question still remains why does everything appear to work: link lights, ip addr, mac addr, except you can't ping the modem/router and the "100baseT" is missing from the advertised mode in ethtool? One of the things the 'MII-Tool' shows which 'ethtool' doesn't is "link partner" information r...@mc-goose:~# mii-tool -v eth0 link partner: 1000baseT-HD 1000baseT-FD 100baseTx-FD 100baseTx-HD 10baseT-FD 10baseT-HD flow-control This could be useful info. The fact that thus far the problem only happens or is resolved upon boot/power hints strongly at either intermittent physical or driver problem that we may never determine. We've pretty well flogged this horse. If this were my setup, and if the modem/router only supported 10/100, I would get an Intel or 3com 10/100 NIC and disable the on-board. I think at that point chances would be greatly in your favor that you'd never see this problem again... _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
