Description of problem:
The port on the external network gets deleted when VM is stopped.
This causes the IP details (internal + floating IP, if associated) to be lost, and when VM will start again new IP will be assigned (not necessarily the one from before).


Version-Release number of selected component (if applicable):


How reproducible:
Always


Steps to Reproduce:
1. Create VM with a vNIC attached to an external network provided by an 'OpenStack Network' provider
2. Run the VM
3. Stop the VM

Actual results:
The port is deleted from the external network


Expected results:
The port for the vNIC should remain on the external network


Additional info:
The new behavior is documented on the feature page:
http://www.ovirt.org/Features/Detailed_OSN_Integration#Integration_with_virtual_NIC_lifecycle

Extract:
"The port will be deleted in these cases:

    The virtual NIC is deleted from the VM.
    The virtual VNIC profile is changed, so that it is no longer connected to the external network.
    The VM is deleted.
    The data center containing the external networks is deleted forcefully.
    Snapshot operations (Preview, Undo) on the VM. "