Backport downstream patch - port_forwarding tests from RHOS 16.2 to 16.1: https://code.engineering.redhat.com/gerrit/c/python-neutron-tests-tempest/+/215530
According to our records, this should be resolved by python-neutron-tests-tempest-0.9.0-1.20220114103350.15c85f6.el8ost. This build is available now.