I see this bug
https://bugs.launchpad.net/neutron/+bug/1884708,
It looks like happened with ovn/ml2 provider network.

Is there any workaround for this?

Nguyen Huu Khoi


On Wed, Jul 23, 2025 at 6:23 AM Nguyễn Hữu Khôi <nguyenhuukhoinw@gmail.com> wrote:
Hello.

My OPS Env:

Openstack version: 2025.1 Stable
OS: Ubuntu 24.04
Neutron: Ml2/OVN
Deployment Tool: Kolla Ansible

Nguyen Huu Khoi


On Tue, Jul 22, 2025 at 11:09 PM Nguyễn Hữu Khôi <nguyenhuukhoinw@gmail.com> wrote:
Hello,
I have some instances in the same vlan and compute node. They can see traffic from another instance which looks like port mirror.  I can workaround via anti affinity rules but is there any solution for this problem? On vmware we can turn off or on promiscuous  mode on the network port group.

Thank you. Regards

Nguyen Huu Khoi