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Re: [Xen-devel] Using OpenVSwitch in Xen-on-Arndale

On Mon, 2013-04-15 at 12:44 +0100, Sengul Thomas wrote:
> Hello,
> I'm trying to use OpenVSwitch (OVS) to connect among VMs.
> However, it looks like current Dom0 (Linux 3.9) kernel does not
> include openvswitch-brcompat module (which looks essential for using
> OpenVSwitch in Xen).
> While I was browsing the Internet, I found the following:
>     http://openvswitch.org/pipermail/dev/2012-June/018310.html
> which is basically the patch to the Linux kernel for using
> openvswitch-brcompat,
> and my question is:
> Is there another way to use OpenVSwitch without brcompat for
> connecting VMs by OVS or do I have to apply the above patch?

The brcompat layer is OK for human use but not really for scripting. A
person can adapt to its quirks etc.

So the best way would be to use a Xen hotplug script which speaks ovs
directly instead of using the brcompat layer. If you take a look through
the xen-devel archives you ought to be able to find an initial attempt
by Bastian Blank from a little while back which looked pretty good. I
also saw a quick & dirty method on xen-users@ last week.


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