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

[jacek burghardt <jaceksburghardt@xxxxxxxxx>]

It seems that  openvswitch support is being planned for xen. the biggest issue is hvm systems as it uses tun interface also. I had issue removing   interfaces added to switch. on reboot. 

On Mon, Apr 15, 2013 at 6:17 AM, Sengul Thomas <thomas.sengul@xxxxxxxxx> wrote:

Thanks for the quick reply, Ian.

I got the idea and I somehow tweaked a bit of the xen hotplug scripts
(just grep brctl and changed it to proper ovs-vsctl commands).
Now, it looks working!
Thanks a lot :)

Jaeyong

On Mon, Apr 15, 2013 at 8:50 PM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> 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.
>
> Ian.
>

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