# Revision history [back]

I got this error in the nova logs of compute node while creating a new instance in openstack liberty. It was because neutron was not able to convey nova that a virtual interface has been created. I made sure I had the following conf in nova section of neutron.conf on controller node so that neutron identifies where the nova service is and conveys of the networking events.

[nova]
auth_url = http://controller:35357