[openstack-dev] [Nova][Neutron] Linuxbridge as the default in DevStack [was: Status of the nova-network to Neutron migration work]

Mathieu Rohon mathieu.rohon at gmail.com
Fri Apr 10 12:55:58 UTC 2015


As you noticed, the use of vxlan would avoid having a complex network
config.

But LinuxBridge is also compatible with VXLAN.
It can support unicast VXLan if l2pop is enabled, and work the same way OVS
does, but with l2pop improvements.
So if Linuxbridge becomes the default, maybe the good path would be
ML2+VXLAN+l2pop+LinuxBridge. This is one of the config I use, and it works
perfectly well, without having to reconfigure my network fabric, or even my
devstack node network config.

Regards,
Mathieu

On Fri, Apr 10, 2015 at 9:05 AM, Attila Fazekas <afazekas at redhat.com> wrote:

> Hi,
>
> I do not recommend Linux bridge as default for devstack.
>
> I think most developer does not have a switch configured with trunk ports,
> or tricks for faking it in a visualized environment.
>
> I think adding some basic mtu and nat trick to devstack,
> would make simpler to use the ml2/ovs/vxaln network
> for devs who are not really familiar with networking.
>
> Best Regards,
> Attila
>
> ----- Original Message -----
> > From: "Sean M. Collins" <sean at coreitpro.com>
> > To: "OpenStack Development Mailing List (not for usage questions)" <
> openstack-dev at lists.openstack.org>
> > Sent: Thursday, April 9, 2015 5:20:15 PM
> > Subject: [openstack-dev] [Nova][Neutron] Linuxbridge as the default in
> DevStack [was: Status of the nova-network to
> > Neutron migration work]
> >
> > On Wed, Apr 01, 2015 at 01:37:28AM EDT, Dr. Jens Rosenboom wrote:
> > > FWIW, I think I made some progress in getting [1] to work, though if
> > > someone
> > > could jump in and make a proper patch from my hack, that would be
> great.
> > >
> > > [1] https://review.openstack.org/168423
> >
> > Hi,
> >
> > Just wanted to write a quick status update and publicly thank Dr.
> > Rosenboom. We are making excellent progress, and a majority of tests at
> the
> > gate
> > are passing for Linuxbridge as the default in DevStack.
> >
> > --
> > Sean M. Collins
> >
> >
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