Comment 1 for bug 1785227

Interesting.

I tried the following:

$ openstack port set --no-fixed-ip --fixed-ip ip-address=10.0.0.22 342c052d-2a51-42e2-90ff-5e56a3d9197c

$ openstack port list
| 342c052d-2a51-42e2-90ff-5e56a3d9197c | | fa:16:3e:74:b7:bb | ip_address='10.0.0.22', subnet_id='b15fee4f-b8f1-4945-98be-6c44ba96bf0e'

$ openstack router show router1
| interfaces_info | [{"subnet_id": "b15fee4f-b8f1-4945-98be-6c44ba96bf0e", "ip_address": "10.0.0.22", "port_id": "342c052d-2a51-42e2-90ff-5e56a3d9197c"}, {"subnet_id": "57ebbdbb-e7e7-40cc-a06d-fdf26c489214", "ip_address": "fdba:10:ba82::1", "port_id": "d9b77c8d-3449-4a94-8707-a301a2be18e5"}] |

But I never saw the l3-agent get notified watching it's log, so the qr- interface was never changed.