On Wed, 14 Nov 2012, Ko, Stephen S wrote:
> Just to make sure this is not an in-kernel only issue, could you please
> try our out-of-tree driver?
> http://sourceforge.net/projects/e1000/files/ixgbe%20stable/3.11.33/ At
> least that way we may be able to isolate the issue to in-kernel driver.
It does not solve my problem, but reduces the severity of.
2 days and only 3 up-donw flaps.
> > On Mon, 12 Nov 2012, Ko, Stephen S wrote:
> > > > > When we saw a link flap/reset like this in the past, it was
> > > > > against a certain switch vendor.
> > > > Which one? :)
> > > > > Which switch or link partner is this NIC connected to?
> > > > This is Juniper EX4500.
> > > It was Arista 7124SX switch with certain DA cables only. :) But we
> > > have not seen it on other switches.
> >
> > I've never tried them :)
> >
> > > Have you tried connecting the NIC to another link partner?
> >
> > Tried to connect to Juniper MX-series but with earlier kernel (about 3.0.x
> > or
> > 3.2.x, I don't remember).
> >
> > > And how about using different DA cables? (length or brand)
> >
> > I've tried: few SFP+'s (Single-mode fiber), ports in switch, two patchcords
> > (10m
> > and 12m).
> >
> > > > > Also, can you please provide us with following info? This will
> > > > > help us debug your issue. dmesg
> > > > http://www.blues.gda.pl/dmesg.txt.gz
> > > Also could you please send us copy of your NIC's eeprom: "ethtool -e
> > > ethX" ?
> >
> > http://www.blues.gda.pl/eth2.eeprom
--
pozdr. Paweł Gołaszewski jid:blues<at>jabber<dot>gda<dot>pl
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