Once the database migration is complete, the neutron-lbaasv2-agent and neutron-server services must be restarted for the changes to take effect. Issue the following commands on the controller node to restart the services:

# systemctl restart neutron-server neutron-lbaasv2-agent 

Use the openstack network agent list command to verify that the agent is running and has checked in:

If you encounter any issues, be sure to check the LBaaS v2 agent log found at /var/log/neutron/neutron-lbaasv2-agent.log before proceeding.