My initial investigation reveals that this started acting up in nova/stable/newton only after this following neutron patch was backported to neutron/stable/newton: https://review.openstack.org/#/c/470297/
If I manually restore these two changes in neutron/plugins/ml2/driver_context.py and restart neutron-server, I no longer see the problem:
My initial investigation reveals that this started acting up in nova/stable/newton only after this following neutron patch was backported to neutron/ stable/ newton: https:/ /review. openstack. org/#/c/ 470297/
If I manually restore these two changes in neutron/ plugins/ ml2/driver_ context. py and restart neutron-server, I no longer see the problem: