Verified on RHOS-17.0-RHEL-9-20220714.n.1 with openstack-neutron-18.4.1-0.20220705190433.5258354.el9ost.noarch. Verified that the problem does not occur after migration to OVN. QoS info was preserved. Tobiko tests test_qos_bw_limit and test_ping_dscp are passing.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Release of components for Red Hat OpenStack Platform 17.0 (Wallaby)), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2022:6543