Pkg xen devel - Feb 2013 - [SOLVED] Re: [Xen-users] Recent hypervisor update on Debian Wheezy breaks domU networking

On 18 February 2013 16:32, Ian Campbell <ijc at hellion.org.uk> wrote:
> On Mon, 2013-02-18 at 13:51 +0000, Gavin wrote:
>
> > <stumped! />
>
> If the kernel hasn't changed and you are 100% sure the network
> configuration before and after the reboot is the same then so am I.
>
> All I can suggest is to reinstall the previous version of Xen.
>
Thanks very much for all your assistance Ian, the problem was with the
network.

We introduced  a second switch into the stack and it seems like it was our
bond interface to the switch that caused this particular issue.

We were using bond mode 5 since that works for us elsewhere and did not
think that this could be the problem since we were seeing the arp-replies
reach the host bridge interface.

As per Xen recommendations I tried mode 7 but that too did not work.

Once configured to use bond mode 1 (active-backup) this all started working
again.

Apologies for the run-around, the false accusations and also the
cross-posting, have a few hours before going live with this platform and
was under a fair amount of pressure.

All good now!!  :)

Regards,
Gavin
>
>
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