Comment 9 for bug 2018529

Reviewed: https://review.opendev.org/c/openstack/neutron/+/892564
Committed: https://opendev.org/openstack/neutron/commit/a3b00768d648742034a4e834875fc4586655787c
Submitter: "Zuul (22348)"
Branch: master

commit a3b00768d648742034a4e834875fc4586655787c
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Wed Aug 23 00:19:24 2023 +0000

    Check the device ID and host ID during virtual port binding

    If a port receives a device ID and a binding profile host ID
    fields update, at the same time, this is because Nova is trying
    to bind the port to a VM (device ID) in a host (host ID). In
    ML2/OVN, a virtual port cannot be bound to a VM.

    NOTE:
    * A virtual port can receive a host ID update. That happens when
      the fixed IP port that has the virtual port IP address as
      allowed address pair is bound.
    * A virtual port can receive a devide ID update. Octavia uses
      the devide ID to identify to what load balancer the virtual
      port belongs.

    This check was introduced in [1].

    [1]https://review.opendev.org/c/openstack/neutron/+/882588

    Closes-Bug: #2028651
    Related-Bug: #2018529
    Change-Id: I8784c6716f5a53b91d43323771e6f30fa8e8e506