[Starlingx-discuss] openstack network creation failure: Flat provider networks are disabled

Hi, the community After installation of "Virtual All-in-one Simplex Installation R2.0", everything goes well except, controller-0:~$ openstack network create --share --external --provider-physical-network provider --provider-network-type flat provider Error while executing command: BadRequestException: 400, Invalid input for operation: Flat provider networks are disabled. Could anyone help to point out what's the issue, and how to fix it? Best Regard