Hi Dmitriy, thanks for answering! I really didn't send any details of my setup, apologies for that. I'm using OVS with the following configuration: provider_networks: - network: container_bridge: br-provider container_type: veth type: vlan range: "100:200" net_name: vlan group_binds: - neutron_openvswitch_agent - network: container_bridge: br-provider container_type: veth type: flat net_name: flat group_binds: - neutron_openvswitch_agent neutron_plugin_type: ml2.ovs neutron_ml2_drivers_type: "flat,vlan" neutron_plugin_base: - router - metering root@dcn2-utility-container-c45f8b09:/# openstack network agent list +--------------------------------------+----------------+------+-------------------+-------+-------+------------------------+ | ID | Agent Type | Host | Availability Zone | Alive | State | Binary | +--------------------------------------+----------------+------+-------------------+-------+-------+------------------------+ | 9a4625ef-2988-4b96-a927-30a9bb0244a4 | Metadata agent | dcn2 | None | :-) | UP | neutron-metadata-agent | | a222c0ae-c2e5-44cc-b478-ca8176daad19 | Metering agent | dcn2 | None | :-) | UP | neutron-metering-agent | | c6be1985-a67e-4099-a1d6-fa517810e138 | L3 agent | dcn2 | nova | :-) | UP | neutron-l3-agent | | da97e2a6-535b-4f1e-828d-9b2fbb3e036b | DHCP agent | dcn2 | nova | :-) | UP | neutron-dhcp-agent | +--------------------------------------+----------------+------+-------------------+-------+-------+------------------------+ root@dcn2-utility-container-c45f8b09:/# openstack compute service list +--------------------------------------+----------------+----------------------------------+----------+---------+-------+----------------------------+ | ID | Binary | Host | Zone | Status | State | Updated At | +--------------------------------------+----------------+----------------------------------+----------+---------+-------+----------------------------+ | a0524af5-bc88-4793-aee2-c2c87cd0e8cc | nova-conductor | dcn2-nova-api-container-aac2b913 | internal | enabled | up | 2023-07-18T12:32:26.000000 | | c860f25e-bd30-49f9-8289-076b230bbc2d | nova-scheduler | dcn2-nova-api-container-aac2b913 | internal | enabled | up | 2023-07-18T12:32:27.000000 | | 6457e0a1-b075-4999-8855-0f36e2e3a95a | nova-compute | dcn2 | nova | enabled | up | 2023-07-18T12:32:27.000000 | +--------------------------------------+----------------+----------------------------------+----------+---------+-------+----------------------------+ The br-provider bridge exists and is UP.