Open Stack

Hello Tomáš:

You need to follow the steps in [1]:
* You need to create the new physical bridge "br-ex2".
* Then you need to add to the bridge the physical interface.
* In the compute node you need to add the bridge mappings to the OVN
database Open vSwitch register
* In the controller, you need to add the reference for this second provider
network in "flat_networks" and "network_vlan_ranges" (in the ml2.ini file).
Then you need to restart the Neutron server to read these new parameters
(this step is not mentioned in this link).
  $ cat ./etc/neutron/plugins/ml2/ml2_conf.ini
  [ml2_type_flat]
  flat_networks = public,public2
  [ml2_type_vlan]
  network_vlan_ranges = public:11:200,public2:11:200

Regards.

[1]
https://docs.openstack.org/networking-ovn/pike/admin/refarch/provider-networks.html

On Tue, Mar 7, 2023 at 12:33 AM Tomáš Bredár <tomas.bredar at gmail.com> wrote:

> Hi,
>
> I have a running production OpenStack deployment - version Wallaby
> installed using TripleO. I'm using the default OVN/OVS networking.
> For provider networks I have two bridges on the compute nodes br-ex and
> br-ex2. Instances mainly use br-ex for provider networks, but there are
> some instances which started using a provider network which should be
> mapped to br-ex2, however I didn't specify "bridge_mappings" on
> ml2_conf.ini, so the traffic wants to flow through the default
> datacentre:br-ex.
> My questions is, what services should I restart on the controller and
> compute nodes after defining bridge_mappings in [ovs] in ml2_conf.ini. And
> if this operation is safe and if the instances already using br-ex will
> lose connectivity?
>
> Thanks for your help
>
> Tomas
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.openstack.org/pipermail/openstack-discuss/attachments/20230307/9655e3ae/attachment.htm>