---
prelude: >
    Add ``data_plane_status`` attribute to port resources to represent the
    status of the underlying data plane. This attribute is to be managed by
    entities outside of the Networking service, while the ``status`` attribute
    is managed by the Networking service. Both status attributes are independent
    from one another.
features:
  - The port resource can have a ``data_plane_status`` attribute.
    Third parties can report via Neutron API issues in the underlying data
    plane affecting connectivity from/to Neutron ports.
    Attribute can take values ``None`` (default), ``ACTIVE`` or ``DOWN``,
    and is readable by users and writable by admins and users granted the
    ``data-plane-integrator`` role. Append ``data_plane_status`` to
    [ml2]/extension_drivers section to load the extension driver.