[ovs-discuss] : Problem compatibility between linux bridge, ovs bridge, libvirt, virt-manager

[Maxime JÉGO]

Le Jeudi 12 Avril 2012 18:48 CEST, Ansis Atteka <aatteka at nicira.com> a écrit: 
 
> On Thu, Apr 12, 2012 at 1:35 AM, Maxime JÉGO <maxime.jego at netensia.fr>wrote:
> 
> > When i restart my VM i have found the solution to restart it :
> >
> > I use this command : virsh edit vm1
> >
> > and i modify my configuration to have this :
> >
> > <interface type='bridge'>
> >      <mac address='52:54:00:cd:e7:53'/>
> >      <source bridge='br0'/>
> >      <target dev='vm1'/>
> >      <alias name='net0'/>
> >      <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
> > function='0x0'/>
> >    </interface>
> >
> > and after that my vm start.
> >
> What exactly did you change in <interface> XML section to get it to work
> again (e.g. did you add the <target> element)? What about the "ovs-vsctl
> show"
> output, when the VM did not start? If you added the <target> element, then
> it
> seems to be more like a workaround, not a correct solution.
> 
> >
> > But now, my problem is to create a new VM. How i can do? Because i have
> > always the same error
> > and with virt-install i don't have options to specify my target device...
> >
> It could be that virt-install does not allow to specify <target> element.
> Anyway, your best chances are to ask this on libvirt mailinglist or use
> "virsh edit" command after the VM is already created.

Yes, virt-install does not allow to specify <target> element and it is impossible to edit a domain
who has not been created before. But i have a co-worker who said me that there is a new version of libvirt since, 
who indicates in the feature, that openvswitch is "now" compatible. (see http://www.libvirt.org/news.html )

I hope that it will help me .
> 
> 
> >
> > Le Mercredi 11 Avril 2012 19:16 CEST, Ansis Atteka <aatteka at nicira.com> a
> > écrit:
> >
> > > On Wed, Apr 11, 2012 at 7:21 AM, Maxime JÉGO <maxime.jego at netensia.fr
> > >wrote:
> > >
> > > > Hello everybody,
> > > > I have already seen this problem on the list but not resolved.
> > > >
> > > > My configuration :
> > > >
> > > > - My ovs version : 1.4.0
> > > > - My host OS : Centos 6
> > > >
> > > > I have loaded the 2 modules :
> > > >
> > > >  [root@********* ~]# lsmod
> > > > Module                  Size  Used by
> > > > brcompat_mod            5681  0
> > > > openvswitch_mod        82901  2 brcompat_mod
> > > >
> > > > and the daemons :
> > > >
> > > > root      1805  0.0  0.0  11384  1024 ?        Ss   Apr10   0:06
> > > > ovsdb-server /usr/local/etc/openvswitch/conf.db
> > > > --remote=punix:/usr/local/var/run/openvswitch/db.sock
> > > > --remote=db:Open_vSwitch,manager_options
> > > > root      1824  0.0  0.0  11932  1440 ?        Ss   Apr10   0:24
> > > > ovs-vswitchd --pidfile --detach
> > > > root      1850  0.0  0.0  11664   860 ?        Ss   Apr10   0:00
> > > > ovs-brcompatd --pidfile --detach
> > > >
> > > >
> > > > When i add a bridge with this command :( ovs-vsctl add-br br0) i can
> > see
> > > > this following result when i use this command (brctl show)
> > > >
> > > > -> [root@******** ~]# brctl show
> > > > bridge name     bridge id               STP enabled     interfaces
> >
> > > > br0             /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > /sys/class/net/br0/bridge: No such file or directory
> > > > 0000.0040f4b52a46       no
> > >
> > >
> > > >
> > > > I don't know if it is linked with the following problem, but i have
> > > > problems to start a Virtual Machine who have the same configuration (
> > i use
> > > > virt-manager ). I can use the VM4, who is started, but if i shutdown
> > it i
> > > > will not restart it.
> > > >
> > > When you are unable to (re)start the VM, could you please provide
> > > us the "ovs-vsctl show" output?
> > >
> > > > (br0 is up)
> > > >
> > > > I give you screenshot in attachment.
> > > >
> > >
> > > > Thank's a lot for your help ;)
> > > >
> > > > Maxime
> > > >
> > > >
> > > > _______________________________________________
> > > > discuss mailing list
> > > > discuss at openvswitch.org
> > > > http://openvswitch.org/mailman/listinfo/discuss
> > > >
> > > >
> >
> >
> >
> >
> >
> >