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Yeah, I also saw in docs that *update-device *is supported since 0.8.0
version,
not sure why it didn't work in my setup.
I installed latest libvirt 1.2.3 and now update-device works just fine and
I am able
to move instance tap device from one bridge to another with no downtime and
no reboot!
I'll try to investigate why it didn't work on 0.9.8 and which is the
minimal libvirt version for this.

Thanks,
Oleg


On Sat, Apr 26, 2014 at 5:46 AM, Kyle Mestery <mestery at noironetworks.com>wrote:

> According to this page [1], "update-device" is supported from libvirt
> 0.8.0 onwards. So in theory, this should be working with your 0.9.8
> version you have. If you continue to hit issues here Oleg, I'd suggest
> sending an email to the libvirt mailing list with the specifics of the
> problem. I've found in the past there are lots of very helpful on that
> mailing list.
>
> Thanks,
> Kyle
>
> [1] http://libvirt.org/sources/virshcmdref/html-single/#sect-update-device
>
> On Thu, Apr 24, 2014 at 7:42 AM, Oleg Bondarev <obondarev at mirantis.com>
> wrote:
> > So here is the etherpad for the migration discussion:
> > https://etherpad.openstack.org/p/novanet-neutron-migration
> > I've also filed a design session on this:
> > http://summit.openstack.org/cfp/details/374
> >
> > Currently I'm still struggling with instance vNic update, trying to move
> it
> > from one bridge to another.
> > Tried the following on ubuntu 12.04 with libvirt 0.9.8:
> >
> https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/sect-dynamic-vNIC.html
> > virsh update-device shows success but nothing actually changes in the
> > instance interface config.
> > Going to try this with later libvirt version.
> >
> > Thanks,
> > Oleg
> >
> >
> >
> > On Wed, Apr 23, 2014 at 3:24 PM, Rossella Sblendido <rsblendido at suse.com
> >
> > wrote:
> >>
> >>
> >> Very interesting topic!
> >> +1 Salvatore
> >>
> >> It would be nice to have an etherpad to share the information and
> organize
> >> a plan. This way it would be easier for interested people  to join.
> >>
> >> Rossella
> >>
> >>
> >> On 04/23/2014 12:57 AM, Salvatore Orlando wrote:
> >>
> >> It's great to see that there is activity on the launchpad blueprint as
> >> well.
> >> From what I heard Oleg should have already translated the various
> >> discussion into a list of functional requirements (or something like
> that).
> >>
> >> If that is correct, it might be a good idea to share them with relevant
> >> stakeholders (operators and developers), define an actionable plan for
> Juno,
> >> and then distribute tasks.
> >> It would be a shame if it turns out several contributors are working on
> >> this topic independently.
> >>
> >> Salvatore
> >>
> >>
> >> On 22 April 2014 16:27, Jesse Pretorius <jesse.pretorius at gmail.com>
> wrote:
> >>>
> >>> On 22 April 2014 14:58, Salvatore Orlando <sorlando at nicira.com> wrote:
> >>>>
> >>>> From previous requirements discussions,
> >>>
> >>>
> >>> There's a track record of discussions on the whiteboard here:
> >>> https://blueprints.launchpad.net/neutron/+spec/nova-to-quantum-upgrade
> >>>
> >>> _______________________________________________
> >>> OpenStack-dev mailing list
> >>> OpenStack-dev at lists.openstack.org
> >>> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> >>>
> >>
> >>
> >>
> >> _______________________________________________
> >> OpenStack-dev mailing list
> >> OpenStack-dev at lists.openstack.org
> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> >>
> >>
> >>
> >> _______________________________________________
> >> OpenStack-dev mailing list
> >> OpenStack-dev at lists.openstack.org
> >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> >>
> >
> >
> > _______________________________________________
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> > OpenStack-dev at lists.openstack.org
> > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
> >
>
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