Comment 2 for bug 2067851

Hello Rodolfo,
Thanks a lot for the response and suggestion.

I checked the configuration of firewall_driver from our lab.
The parameter "firewall_driver" was not set now, on host:
/etc/neutron/plugins/ml2/linuxbridge_agent.ini
# Driver for security groups firewall in the L2 agent (string value)
#firewall_driver = <None>

Following is the ovs version of lab
[cbis-admin@overcloud-sriovperformancecompute-qd-sbc-cbis3-7 etc]$ rpm -qa | grep openvs
openvswitch-2.11.0-4.el7.x86_64
[cbis-admin@overcloud-sriovperformancecompute-qd-sbc-cbis3-7 etc]$ rpm -qa | grep neutron
openstack-neutron-linuxbridge-13.0.4-0.20190523134154.4352e82.el7.noarch
openstack-neutron-lbaas-13.0.1-0.20190510224355.74dddcb.el7.noarch
openstack-neutron-common-13.0.4-0.20190523134154.4352e82.el7.noarch
openstack-neutron-13.0.4-0.20190523134154.4352e82.el7.noarch

Thanks,
Mark