Cisco Nexus ML2 mechanism fails on GRE networks

[Yaroslav]

There is a problem with Cisco Nexus ML2 mechanism and GRE networks. Function _port_action fails with NexusMissingRequiredFields if the port's network is not VLAN. So, this prevents port binding, and leads to completely non-working GRE networks.

My proposed solution is to add a check in beginning of _port_action:

if (segment and segment[api.NETWORK_TYPE] != p_const.TYPE_VLAN):
    return

There is a similar check in _get_vlanid, but it is not enough

[Rich Curran (rcurran)]

Fixed on networking-cisco repo: https://review.openstack.org/#/c/169879/3

[Yaroslav (yaroslav-isakov)]

So, I think it could be closed, then?