重启neutron服务步骤

控制节点：
service openstack-nova-api restart
service openstack-nova-scheduler restart
service openstack-nova-conductor restart
service neutron-server restart

网络节点：
service openvswitch.service restart
service neutron-openvswitch-agent restart
service neutron-l3-agent restart
service neutron-dhcp-agent restart
service neutron-metadata-agent restart

计算节点：
service openvswitch restart
service neutron-openvswitch-agent restart