[ovs-discuss] Installing VM on KVM hypervisor in Ubuntu 14.04 with OVS bridge

Ramana Reddy gtvrreddy at gmail.com
Mon Oct 5 16:56:20 UTC 2015


On Mon, Oct 5, 2015 at 9:38 PM, Gurucharan Shetty <shettyg at nicira.com>
wrote:

> On Mon, Oct 5, 2015 at 1:03 AM, Ramana Reddy <gtvrreddy at gmail.com> wrote:
> > Hi all,
> >
> > I installed a VM in NAT mode using virt-manager and edited the xml file
> as
> > per the
> > instructions  given in this link:
> >
> >
> http://git.openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=blob_plain;f=INSTALL.Libvirt;hb=HEAD
> >
> > Basically It tells the following modofications:
> >
> > And change it to something like this:
> >
> >  ...
> >  <interface type='bridge'>
> >   <mac address='52:54:00:71:b1:b6'/>
> >   <source bridge='ovsbr'/>
> >   <virtualport type='openvswitch'/>
> >   <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
> > function='0x0'/>
> >  </interface>
> >  ...
> >
> > After modifications, I started VM. But its throwing the errors: Unable to
> > complete install: 'Unable to add bridge br0 port vnet0: Operation not
> > supported'
> >
>
> I suppose 'dpkg -l | grep libvirt' shows version number greater than
> 0.9.11?
> Also, have you already created your bridge "br0"? i.e. do you see it
> in 'ovs-vsctl show' ?
>
> Do you also have ovs-vswitchd seen in 'ps -ef | grep ovs'
>

Hi Gurucharan,

Thanks for your reply. Here is the output:
$dpkg -l  | grep libvirt
ii  libvirt-bin
1.2.2-0ubuntu13.1.14                               amd64        programs
for the libvirt library
ii  libvirt0
1.2.2-0ubuntu13.1.14                                amd64        library
for interfacing with different virtualization systems
ii  libvirtodbc0
6.1.6+repack-0ubuntu3                             amd64
high-performance database - ODBC libraries
ii  python-libvirt
1.2.2-0ubuntu2                                         amd64        libvirt
Python bindings

Yes, I created the br0 using ovs-vsctl command.
$sudo ovs-vsctl show
92d0c0b6-bbbb-4f86-aebd-ec4cc33653a3
    Bridge "br0"
        Port "br0"
            Interface "br0"
                type: internal
        Port "eth0"
            Interface "eth0"
$ps -ef | grep ovs
root      2637  1849  0 22:11 ?        00:00:00 ovsdb-server
--remote=punix:/usr/local/var/run/openvswitch/db.sock
--remote=db:Open_vSwitch,Open_vSwitch,manager_options --pidfile --detach
root      2642  1849  0 22:11 ?        00:00:01 ovs-vswitchd --pidfile
--detach
ramanar   5743  2469  0 22:26 pts/5    00:00:00 grep --color=auto ovs
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