Hi, Micheal, Thanks a lot for your comments. Please find the errors of o-cw.log in link http://paste.openstack.org/ show/589806/ <http://paste.openstack.org/show/589669/>. Hope it will help. About the lb-mgmt-net, I just follow the guide of running LBaaS. If I create a ordinary subnet with neutron for the two VMs, will it prevent the issue you mentioned happening? Best regards, Yipei -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20161120/ac42379d/attachment.html>