I made changes at /usr/lib/python2.7/dist-packages/nova/network/neutronv2/api.py and made restart services nova-api, nova-compute, nova-conductor, nova-scheduler and all works fine. New ip address successfully attach to instance. Thanks a lot for help, Melanie!!!
I made changes at /usr/lib/ python2. 7/dist- packages/ nova/network/ neutronv2/ api.py and made restart services nova-api, nova-compute, nova-conductor, nova-scheduler and all works fine. New ip address successfully attach to instance. Thanks a lot for help, Melanie!!!