[CentOS] kernel NETDEV WATCHDOG: eth0: transmit timed out

Mon Mar 7 03:13:06 UTC 2011
Charles Polisher <cpolish at surewest.net>

Simon Matter wrote:
> > Sometimes  my server network connection on Linux goes down with short
> > message in syslog saying: "[localhost kernel] NETDEV WATCHDOG: eth0:
> > transmit timed out" (or similar).
> >
> > By the way , I installed the CentOS 5.4 x86_64 bit and the kernel version
> > was  2.6.18-164.
> >
> > Has anyone experienced this problem or is it the bug of the kernel ?
> 
> It usually happens with problems on the physical layer. You network card
> may be bad, or the connection, or the other side of the ethernet wire, or
> a driver problem in the linux kernel. We don't have enough information
> from you so say more.

I agree with your analysis. Had this very problem, it turned out
to be due to a dodgy NIC.
-- 
Charles Polisher