The VANS squad has added a new external network, the octavia controller network, used to connect Load-balancing service (octavia) controllers running in the control plane. Section 6.1 should be updated to account for this change:
https://docs.redhat.com/en/documentation/red_hat_openstack_services_on_openshift/18.0/html-single/configuring_load_balancing_as_a_service/index#lb-service-mgt-network_monitor-lb-service