[ovs-discuss] ovs-bonded igb nics flopping

Matias Vara matiasevara at gmail.com
Fri Jan 13 21:21:27 UTC 2017


Thank you very much Felipe and Bef, I will ask again intel about this.

Matias

2017-01-13 20:55 GMT+00:00 Felipe Arturo Polanco <felipeapolanco at gmail.com>:

> Some ixgbe NICs of Intel require recompilation of driver if packet
>  forwarding  is being used.
>
> There is a flag that needs to be put to false in the arguments to avoid
> issues like the one you describe.
>
> If this is your case Please go to the Readme file of your driver source
> code and scroll down to the part of LZO flag warning and packet forwarding
> for more information.
>
>
> On Jan 13, 2017 4:46 PM, "Ben Pfaff" <blp at ovn.org> wrote:
>
> That does seem likely to me, but if you discover any evidence that
> points to OVS, please do come back and talk to us again.
>
> On Thu, Jan 12, 2017 at 10:40:07AM +0000, Matias Vara wrote:
> > Thank you Ben, so the problem could in the driver or in the kernel.
> >
> > 2017-01-11 17:37 GMT+00:00 Ben Pfaff <blp at ovn.org>:
> >
> > > On Wed, Jan 11, 2017 at 01:15:10PM +0000, Matias Vara wrote:
> > > > Hi everyone and sorry for the multiple emails, we are facing a
> flopping
> > > of
> > > > igb (5.3.4.4) nics which are bonded by using openvswitch. I am in
> > > XenServer
> > > > which is based on CentOS. I am not sure if the problem is the driver
> or
> > > > openvswitch. We have six nics that are bonded into two groups of
> three.
> > > The
> > > > issue appers after some time that the nics are bonded. The *kern.log*
> > > shows
> > > > (part of):
> > >
> > > OVS just sends and receives packets on interfaces.  It's hard to
> imagine
> > > how it would cause a link to flap at the driver level.
> > >
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