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

Jens Rosenboom j.rosenboom at x-ion.de
Fri Apr 10 08:18:38 UTC 2015

2015-04-10 9:05 GMT+02:00 Attila Fazekas <afazekas at redhat.com>:

> 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 would argue this to be a non issue. Most developers will only run single
node setups anyway.
If they setup multiple nodes connected with a switch that happens not to be
VLAN aware, it will
most likely still be VLAN transparent at the same time, so things still
will just work. This
also includes the propably most common case of multiple qemu instances
connected via a Linuxbridge
device on the host.

> 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.
​IMHO "adding ... trick" and "​make simpler" is incompatible with each
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