Comment 4 for bug 1821150

I tried on my environment with following command:

ADMINID=`openstack project list | grep admin | awk '{print $2}'`
openstack network segment range create provider-flat --network-type flat --physical-network providernet-a --project ${ADMINID}

However following error occured. It seems that we can't create a flat network segment range? Or maybe I use an old docker image?
openstack network segment range create: error: argument --network-type: invalid choice: u'flat' (choose from 'geneve', 'gre', 'vlan', 'vxlan')

The docker image for stx-neutron:
192.168.204.2:9001/starlingx/stx-neutron dev-centos-master-latest 39c78d818a77 2 weeks ago 699MB