Thank you! This problem troubles me few days. I have execute these commands and when I use neutron command it shows error "Unauthorized: Authentication required". there must be something wrong on controller node, I'll try to find the issue and then check the neutron config.

Hi, joshua, I can successfully create network, and they can be showed in "neutron net-list" command, but I cannot create instance, and the log said "NoNetworksFound: No networks defined" ,also,there is nothing in "nova network-list".

Check the network to which the tenant belongs. Try to create the instance using the User credentials belonging to the tenant. It will work. You have to source your user credentials approprately

it worked, but the network is...terrible.

on compute-node, Is there any tapxxxxx on br-int ? If have, how to conf ?