[ovs-discuss] Libvirt does not let me choose the OVS bridge...

Tue Jan 22 15:37:25 UTC 2013

Guys,

 Just for the record, my problem wasn't related to Open vSwitch or Libvirt,
the problem is only with virt-manager itself.

 But, I was able to create the VM using virt-manager and, at the network
configuration step, I manually selected the interface name "ovsbr0" to
create the VM XML file anyway.

 After that, I typed: "virsh edit vmname" and changed the "interface" tags
to:

---
    <interface type='bridge'>
      <mac address='52:54:00:01:8b:3d'/>
      <source bridge='ovsbr0'/>
      <virtualport type='openvswitch'>
        <parameters interfaceid='0514a4cb-8548-37ae-12be-6ecca14cc5fd'/>
      </virtualport>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
    </interface>
---

 And it is working smoothly now! Even under virt-manager, if I do not touch
the network preferences...

 Sorry about the buzz on the wrong mailing list.

 Anyway, I have only one question related to Open vSwitch, in a nut shell,
what the following line does?

 "ovs-vsctl add-port ovsbr0 ovsbr0p1 -- set interface ovsbr0p1
type=internal"

 ...since I'm not using it and my VM have network connectivity as
expected...

Best,
Thiago

On 18 January 2013 19:34, Martinx - ジェームズ <thiagocmartinsc at gmail.com> wrote:

> Mmm... That's true... Thank you anyway!
>
> On 18 January 2013 19:30, Ben Pfaff <blp at nicira.com> wrote:
>
>> Open vSwitch doesn't have any built-in integration with libvirt, but
>> on the other hand libvirt does have some support for Open vSwitch, so
>> perhaps you should try inquiring on a libvirt mailing list.
>>
>> Also, version 1.4.0 is four minor versions behind, seeing as we just
>> released 1.4.4.  You might try a new version.
>>
>> On Fri, Jan 18, 2013 at 07:22:30PM -0200, Martinx - ジェームズ wrote:
>> > Hi!
>> >
>> >  Also, I just tried this:
>> >
>> > ifdown ovsbr0p1
>> > ifdown eth0
>> >
>> > ovs-vsctl del-port ovsbr0p1
>> > ovs-vsctl del-br ovsbr0
>> > ovs-vsctl show (empty / clean)
>> >
>> > ovs-vsctl add-br br0
>> > ovs-vsctl add-port br0 eth0
>> > ovs-vsctl list-br
>> >
>> > New /etc/network/interfaces:
>> >
>> > ------
>> > # The primary network interface
>> > auto eth0
>> > iface eth0 inet static
>> > address 10.32.14.2
>> > netmask 24
>> > # gateway 10.32.14.1
>> >
>> > auto br0
>> > iface br0 inet manual
>> > up ifconfig $IFACE 0.0.0.0 up
>> >  down ifconfig $IFACE down
>> > ------
>> >
>> >  And now I can select the bridge (br0) on virt-manager but, same error
>> when
>> > I try to start it:
>> >
>> >  "Unable to complete install: 'Unable to add bridge br0 port vnet0:
>> > Operation not supported'"
>> >
>> >  I just read this:
>> >
>> http://blog.allanglesit.com/2012/03/linux-kvm-ubuntu-12-04-with-openvswitch/-
>> > since I'm using Ubuntu 12.04 but, no difference, same error...
>> >
>> >  I really appreciate ANY help from you guys!
>> >
>> > Thanks!
>> > Thiago
>> >
>> > On 18 January 2013 18:40, Martinx - ジェームズ <thiagocmartinsc at gmail.com>
>> wrote:
>> >
>> > > Hi!
>> > >
>> > >  I'm trying Open vSwitch after much delay... Can't use brctl
>> anymore...
>> > >  =P
>> > >
>> > >  I have Ubuntu 12.04 64 bits, Open vSwitch 1.4.0+build0, with Ubuntu
>> > > Cloud Archives <https://wiki.ubuntu.com/ServerTeam/CloudArchive>repository
>> enabled... Which provides libvirt 0.9.13 for Ubuntu 12.04 LTS.
>> > >
>> > >  What I'm doing?
>> > >
>> > > ovs-vsctl add-br ovsbr0
>> > > ovs-vsctl add-port ovsbr0 eth0
>> > > ovs-vsctl add-port ovsbr0 ovsbr0p1 -- set interface ovsbr0p1
>> type=internal
>> > >
>> > > My /etc/network/interfaces have:
>> > > ---
>> > > # The primary network interface
>> > > auto eth0
>> > > iface eth0 inet manual
>> > > up ifconfig $IFACE 0.0.0.0 up
>> > >  down ifconfig $IFACE down
>> > >
>> > > auto ovsbr0p1
>> > > iface ovsbr0p1 inet static
>> > > address 10.32.14.2
>> > >  netmask 24
>> > > ---
>> > >
>> > >  But when open virt-manager, I can't select the ovsbr0p1 (or
>> ovsbr0)...
>> > > They are "unselectable" (gray)...
>> > >
>> > >  What am I missing?
>> > >
>> > >  I followed this guide to help me:
>> > >
>> http://blog.allanglesit.com/2012/10/linux-kvm-ubuntu-12-10-with-openvswitch/
>> > >
>> > >  When I tried to manually select the ovsbr0 or ovsbr0p1, virt-manager
>> > > returns:
>> > >
>> > > ------
>> > > Traceback (most recent call last):
>> > > File “/usr/share/virt-manager/virtManager/asyncjob.py”, line 45, in
>> > > cb_wrapper
>> > > callback(asyncjob, *args, **kwargs)
>> > > File “/usr/share/virt-manager/virtManager/create.py”, line 1909, in
>> > > do_install
>> > > guest.start_install(False, meter=meter)
>> > > File “/usr/lib/python2.7/dist-packages/virtinst/Guest.py”, line 1236,
>> in
>> > > start_install
>> > > noboot)
>> > > File “/usr/lib/python2.7/dist-packages/virtinst/Guest.py”, line 1304,
>> in
>> > > _create_guest
>> > > dom = self.conn.createLinux(start_xml or final_xml, 0)
>> > > File “/usr/lib/python2.7/dist-packages/libvirt.py”, line 2501, in
>> > > createLinux
>> > > if ret is None:raise libvirtError(‘virDomainCreateLinux() failed’,
>> > > conn=self)
>> > > libvirtError: Unable to add bridge ovsbr0p1 port vnet0: Operation not
>> > > supported
>> > > ------
>> > >
>> > >  I do not have openvswitch-brcompat installed. And I don't think I
>> need it.
>> > >
>> > > Thanks!
>> > > Thiago
>> > >
>>
>> > _______________________________________________
>> > discuss mailing list
>> > discuss at openvswitch.org
>> > http://openvswitch.org/mailman/listinfo/discuss
>>
>>
>
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