Red Hat Bugzilla – 1760762 – Instances can't be started: NovaException: Unsupported VIF type binding_failed convert '_nova_to_osvif_vif_binding_failed'
closing as a duplicate as this is already fixed.
from the sos report the customer is running
openstack-nova-compute-14.1.0-27.el7ost.noarch
this was fixed in 14.1.0-44 which was released ~ 6 months ago
*** This bug has been marked as a duplicate of bug 1578028 ***