"public" as a network_name is hardcoded in several places:

root@onap-robot-robot-54dbc8d877-mv769:/var/opt/ONAP# grep network_name=public * -R
robot/resources/stack_validation/validate_dns_scaling.robot: ${vdns_public_ip}= Get Server Ip ${server_list} ${stack_info} vdns_name_0 network_name=public
robot/resources/stack_validation/validate_vfw.robot: ${vfw_public_ip}= Get Server Ip ${server_list} ${stack_info} vfw_name_0 network_name=public
robot/resources/stack_validation/validate_vfw.robot: ${vpg_public_ip}= Get Server Ip ${server_list} ${stack_info} vpg_name_0 network_name=public
robot/resources/stack_validation/validate_vfw.robot: ${vsn_public_ip}= Get Server Ip ${server_list} ${stack_info} vsn_name_0 network_name=public
robot/resources/stack_validation/policy_check_vfw.robot: ${vpg_public_ip}= Get Server Ip ${server_list} ${vpkg_stack_info} vpg_name_0 network_name=public
robot/resources/stack_validation/policy_check_vfw.robot: ${vsn_public_ip}= Get Server Ip ${server_list} ${vsnk_stack_info} vsn_name_0 network_name=public
robot/resources/stack_validation/policy_check_vfw.robot: ${vlb_public_ip}= Get Server Ip ${server_list} ${stack_info} vlb_name_0 network_name=public
robot/resources/stack_validation/validate_vlb.robot: ${vlb_public_ip}= Get Server Ip ${server_list} ${stack_info} vlb_name_0 network_name=public
robot/resources/demo_preload.robot: ${vpg_public_ip}= Get Server Ip ${server_list} ${stack_info} vpg_name_0 network_name=public

this is prohibiting us to use different network name, as of now we need to patch that to match it with network we use as public network for openstack. As per my understanding it won't work also for classical public network with floating IP concept.

DoD: is to introduce param for that