Comment 9 for bug 1904399

Testcases successful (see below). I would also like to get bootstack feedback before tagging this as verified.

== groovy-proposed ==
root@g1:/usr/lib/python3/dist-packages# python3 -m unittest neutron.tests.unit.plugins.ml2.drivers.ovn.mech_driver.ovsdb.test_maintenance.TestDBInconsistenciesPeriodics.test_check_for_igmp_snoop_support
Could not load 'oslo_cache.etcd3gw': No module named 'etcd3gw'
/usr/lib/python3/dist-packages/sqlalchemy/orm/relationships.py:1993: SAWarning: Setting backref / back_populates on relationship QosNetworkPolicyBinding.port to refer to viewonly relationship Port.qos_network_policy_binding should include sync_backref=False set on the QosNetworkPolicyBinding.port relationship. (this warning may be suppressed after 10 occurrences)
  util.warn_limited(
/usr/lib/python3/dist-packages/sqlalchemy/orm/relationships.py:1993: SAWarning: Setting backref / back_populates on relationship Tag.standard_attr to refer to viewonly relationship StandardAttribute.tags should include sync_backref=False set on the Tag.standard_attr relationship. (this warning may be suppressed after 10 occurrences)
  util.warn_limited(
/usr/lib/python3/dist-packages/neutron_lib/context.py:151: DeprecationWarning: context.session is used with and without new enginefacade. Please update the code to use new enginefacede consistently.
  warnings.warn('context.session is used with and without '
.
----------------------------------------------------------------------
Ran 1 test in 1.716s

OK
root@g1:/usr/lib/python3/dist-packages# apt policy python3-neutron
python3-neutron:
  Installed: 2:17.0.0-0ubuntu3
  Candidate: 2:17.0.0-0ubuntu3
  Version table:
 *** 2:17.0.0-0ubuntu3 500
        500 http://archive.ubuntu.com/ubuntu groovy-proposed/main amd64 Packages

== focal-proposed ==
root@f1:/usr/lib/python3/dist-packages# python3 -m unittest neutron.tests.unit.plugins.ml2.drivers.ovn.mech_driver.ovsdb.test_maintenance.TestDBInconsistenciesPeriodics.test_check_for_igmp_snoop_support
/usr/lib/python3/dist-packages/neutron_lib/context.py:151: DeprecationWarning: context.session is used with and without new enginefacade. Please update the code to use new enginefacede consistently.
  warnings.warn('context.session is used with and without '
.
----------------------------------------------------------------------
Ran 1 test in 2.692s

OK
root@f1:/usr/lib/python3/dist-packages# python3 -m unittest neutron.tests.unit.plugins.ml2.drivers.ovn.mech_driver.ovsdb.test_maintenance.TestDBInconsistenciesPeriodics.test_check_for_igmp_snoop_support^C
root@f1:/usr/lib/python3/dist-packages# apt policy python3-neutron
python3-neutron:
  Installed: 2:16.2.0-0ubuntu3
  Candidate: 2:16.2.0-0ubuntu3
  Version table:
 *** 2:16.2.0-0ubuntu3 500
        500 http://archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages

== victoria-proposed ==
root@fv:/usr/lib/python3/dist-packages# python3 -m unittest neutron.tests.unit.plugins.ml2.drivers.ovn.mech_driver.ovsdb.test_maintenance.TestDBInconsistenciesPeriodics.test_check_for_igmp_snoop_support
Could not load 'oslo_cache.etcd3gw': No module named 'etcd3gw'
/usr/lib/python3/dist-packages/sqlalchemy/orm/relationships.py:1993: SAWarning: Setting backref / back_populates on relationship QosNetworkPolicyBinding.port to refer to viewonly relationship Port.qos_network_policy_binding should include sync_backref=False set on the QosNetworkPolicyBinding.port relationship. (this warning may be suppressed after 10 occurrences)
  util.warn_limited(
/usr/lib/python3/dist-packages/sqlalchemy/orm/relationships.py:1993: SAWarning: Setting backref / back_populates on relationship Tag.standard_attr to refer to viewonly relationship StandardAttribute.tags should include sync_backref=False set on the Tag.standard_attr relationship. (this warning may be suppressed after 10 occurrences)
  util.warn_limited(
/usr/lib/python3/dist-packages/neutron_lib/context.py:151: DeprecationWarning: context.session is used with and without new enginefacade. Please update the code to use new enginefacede consistently.
  warnings.warn('context.session is used with and without '
.
----------------------------------------------------------------------
Ran 1 test in 2.562s

OK
root@fv:/usr/lib/python3/dist-packages# apt policy python3-neutron
python3-neutron:
  Installed: 2:17.0.0-0ubuntu3~cloud0
  Candidate: 2:17.0.0-0ubuntu3~cloud0
  Version table:
 *** 2:17.0.0-0ubuntu3~cloud0 500
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu focal-proposed/victoria/main amd64 Packages
        100 /var/lib/dpkg/status

== ussuri-proposed ==
root@b1:/usr/lib/python3/dist-packages# python3 -m unittest neutron.tests.unit.plugins.ml2.drivers.ovn.mech_driver.ovsdb.test_maintenance.TestDBInconsistenciesPeriodics.test_check_for_igmp_snoop_support
/usr/lib/python3/dist-packages/paste/deploy/loadwsgi.py:22: PkgResourcesDeprecationWarning: Parameters to load are deprecated. Call .resolve and .require separately.
  return pkg_resources.EntryPoint.parse("x=" + s).load(False)
/usr/lib/python3/dist-packages/neutron_lib/context.py:154: DeprecationWarning: context.session is used with and without new enginefacade. Please update the code to use new enginefacede consistently.
  DeprecationWarning)
.
----------------------------------------------------------------------
Ran 1 test in 2.720s

OK
root@b1:/usr/lib/python3/dist-packages# apt policy python3-neutron
python3-neutron:
  Installed: 2:16.2.0-0ubuntu3~cloud0
  Candidate: 2:16.2.0-0ubuntu3~cloud0
  Version table:
 *** 2:16.2.0-0ubuntu3~cloud0 500
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-proposed/ussuri/main amd64 Packages