Seems that this is not supported when the switch type of cluster is "Linux bridge".
I will need to use a new cluster with OVS type of switch.

Below the paragraph from [1]:

1.2. Physical Networks

It is possible to connect the OVN logical networks to a physical network, akin to OpenStack’s physnet. The traffic on the physical external network can optionally be VLAN tagged. Connecting to external networks is limited to oVirt clusters configured to use Open vSwitch switch type, which is currently in tech-preview.


[1]: https://github.com/oVirt/ovirt-provider-ovn/blob/master/docs/provider_api_description.adoc#security


On Wed, Nov 25, 2020 at 9:47 PM Alex K <rightkicktech@gmail.com> wrote:
Hi all,

I have created some logical switches at the OVN network provider (the default provider that is configured during engine-setup). This is working fine.

I would like though to be able to connect a logical OVN switch to a physical network at which the hosts have access, so as to give access to guest VMs to this network. When connecting such switch to a physical network the guest VMs do not have access to the physical network:

image.png
It seems that this should be supported from ovirt. Am I missing something?

P.S. I know I can provide such connectivity through standard networking, though was wondering if this can be done with OVN.

Many thanx,
Alex