[ovs-discuss] BUG

[Scott Lowe]

Please see my responses inline, prefixed by [SL].

jayakeerthi k <jayakeerthik82 at gmail.com> wrote:

> Hi,
> i couldn't able to resolve the issue with above steps.i got the following error in virt-manager.
> 
> Error starting domain: Unable to add bridge 1511 port vnet0: Operation not supported
> 
> Traceback (most recent call last):
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 96, in cb_wrapper
>     callback(asyncjob, *args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/asyncjob.py", line 117, in tmpcb
>     callback(*args, **kwargs)
>   File "/usr/share/virt-manager/virtManager/domain.py", line 1162, in startup
>     self._backend.create()
>   File "/usr/lib/python2.7/dist-packages/libvirt.py", line 866, in create
>     if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
> libvirtError: Unable to add bridge 1511 port vnet0: Operation not supported


[SL] Jayakeerthi, does an OVS bridge named "1511" exist? If not, then you'll
see an error.

Did you edit the libvirt domain XML to be sure to tell libvirt that you're
using OVS? If not, then you'll see an error.

It's entirely possible (I don't use virt-manager, so I don't know for
certain) that this is a virt-manager issue. Have you tried using virsh
instead of virt-manager?


> Thanking you,
> jayakeerthi k
> 
> 
> On Mon, Feb 23, 2015 at 10:53 PM, Scott Lowe <scott.lowe at scottlowe.org> wrote:
> Please see my responses inline, prefixed by [SL].
> 
> jayakeerthi k <jayakeerthik82 at gmail.com> wrote:
> 
> > sorry for the delay,
> > libvirt version is 1.2.2
> > ovs_version: "2.0.2"
> > i'm installing it through Virt-manager.
> > xml file is
> >
> > <snip>
> >
> >     <interface type='bridge'>
> >       <mac address='52:54:00:f1:51:47'/>
> >       <source bridge='1511'/>
> >       <model type='virtio'/>
> >       <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
> >     </interface>
> 
> 
> [SL] This section is the issue. The guest domain (VM) is set to use a bridge ("1511"?), but you haven't specified "virtualport type=openvswitch", so Libvirt isn't able to properly communicate with OVS.
> 
> If you look at the example XML that I supplied here:
> 
> <http://blog.scottlowe.org/2012/11/12/libvirt-ovs-integration-revisited/>
> 
> then you can see a snippet of network XML configuration that *will* work with OVS. This should get you started down the right path.
> 
> Good luck!
> 
> > On Thu, Feb 19, 2015 at 10:47 PM, Scott Lowe <scott.lowe at scottlowe.org> wrote:
> > Please see my responses inline, prefixed by [SL].
> >
> > jayakeerthi k <jayakeerthik82 at gmail.com> wrote:
> >
> > > OK..
> > >
> > > when i try to create vm i'm gettting error unable to add vnet0 port on the
> > > bridge br3.
> >
> > [SL] Jayakeerthi, can you share the following information to help us help
> > you?
> >
> > - The network portion of the domain XML configuration for your VM (obtained
> > via 'virsh dumpxml <vm-name>'
> >
> > - The versions of OVS and libvirt installed on your system
> >
> > - The command(s) you are using to create and/or start the VM
> >
> > Feel free to use a service like pastebin.com to share the domain XML
> > configuration, if you'd like.
> >
> > Thanks!
> >
> > >> On Thu, Feb 19, 2015 at 10:01 AM, Ben Pfaff <blp at nicira.com> wrote:
> > >>
> > >> I don't think you can. KVM creates the port, OVS only handles switching.
> > >>
> > >>> On Thu, Feb 19, 2015 at 09:08:49AM +0530, jayakeerthi k wrote:
> > >>>
> > >>> how to create port's in openvswitch that can be assigned to vm created
> > >>> with KVM?


--
Scott