Comment 3 for bug 1774409

to increase number of zombies I used the following loop:

while true; do
    openstack network create --provider-network-type vxlan --share test_net
    openstack subnet create --network test_net --subnet-range 192.0.0.0/24 test_subnet
    openstack network delete test_net
done

after complete clean-up of networks zombies are still there. I also use l3 ha if this matters