Comment 3 for bug 1630880

Now looking into this a bit more deeply it seems that @dougwig is correct. However the default setting is that only the admins can create provider networks, it is possible to change these default values.
The relevant policy.json parameters are: "create_network:provider:network_type",
 "create_network:provider:physical_network" and
 "create_network:provider:segmentation_id".

OpenStack networking guide [1] is not correct.

[1]: http://docs.openstack.org/newton/networking-guide/scenario-provider-ovs.html