[ovs-discuss] Migration with Open vSwith

Jesse Gross jesse at nicira.com
Fri May 27 16:02:25 UTC 2011

On Fri, May 27, 2011 at 1:24 AM, Jérémie Tarot <silopolis at gmail.com> wrote:
> Hi,
> 2011/5/27 Jesse Gross <jesse at nicira.com>
>> On Tue, May 24, 2011 at 2:02 AM, Francis Margelidon
>> <Francis.Margelidon at callide.fr> wrote:
>> > I have a problem when I migrate a virtual machine from one xen to
>> > another xen. If I tag the port of the vm for example I make a ovs-vsctl
>> > add-port br0 vif1.0 tag=1 and then I make xm migrate vm1 xen2 --live. The
>> > vm1 on the xen2 has no vlan tag. If someone have an idea to configure vlan
>> > in the vm1.cfg or to persist the config during the migration.
>> Essentially what you need is a distributed vswitch that tracks the
>> movement of VMs and applies the appropriate configuration on each
>> individual hypervisor.  Open vSwitch exposes the remote management
>> interfaces necessary to support such a use case but it is not
>> inherently a distributed vswitch.  For that, you would need a central
>> controller to orchestrate the policy.  Such a controller could be
>> built on top of Nox.
> Does someone know if such a project has been initiated ? Any code repo lying
> around ?

There's Citrix's Distributed Virtual Switch.  However, it requires
integration with the hypervisor management interfaces so it is
specific to XenServer.

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