Trace backs in https://www.redhat.com/archives/rdo-list/2014-May/msg00060.html
and mentioned by you ( https://bugzilla.redhat.com/show_bug.cgi?id=1090605 )
seem to me to be different.

Also Kashyap wrote  :-
   Attempt to launch a Nova instance as a user tenant results in this trace back saying "Unexpected vif_type". Interesting thing is, the instance goes into ACTIVE when I launch the Nova instance with admin tenant.

  I also handle a thread at ask.openstack.org with person on Multi Node Neutron ML2&OVS&GRE Setup on Ubuntu 14.04,  experiencing same problem as was described by Kashyap. I just cannot have him to reproduce launching as admin tenant case.

B.
> /me thinks, this is tracked in
> https://bugzilla.redhat.com/show_bug.cgi?id=1090605
>
> Matthias
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