Archives


- Beowulf
- Beowulf Announce
- Scyld-users
- Beowulf on Debian

Weird network connection problem

Many of your questions may have already been answered in earlier discussions or in the FAQ. The search results page will indicate current discussions as well as past list serves, articles, and papers.

Search

Yudong Tian yudong at hsb.gsfc.nasa.gov
Tue Oct 1 12:45:39 PDT 2002


> 
> >    We've got 200 nodes running,  with each node having a 
> Biostar MB with a
> > built-in Realtek 8192
> > NIC chip, and running RH 7.2, 2.4-17.
> 
> Which driver, including version number, are you running?
> 


To be precise, the kernel is 2.4.7-10, the driver is 
the default 8139too.o. Do you think I should try 
rtl8139.c? 





> > Recently we've seen a weird problem with the network connection to
> > some of these nodes. About 20 of them will lose their network
> > connections during the course of a few hours to a few days. And if I
> > just unplug the network cable from such a node and plug it back in
> > right away, the connection will come back up.
> 
> Normally this would be a driver problem...
> 
> >  Any insight where we should look for the problem: hardware? BIOS?
> > Driver module? Such a problem does not happen to any nodes
> > randomly. It only occurs to those 20 or so particular nodes, which are
> > identical to others except their MAC addrs.
> 
> But this does hint at a hardware problem.
> 
> 
> -- 
> Donald Becker				becker at scyld.com
> Scyld Computing Corporation		http://www.scyld.com
> 410 Severn Ave. Suite 210		Second Generation Beowulf Clusters
> Annapolis MD 21403			410-990-9993



More information about the Beowulf mailing list