[ovirt-users]OVN networks

Hello,  Could you help with how to change Switch type in ovirt cluster from Linux Bridge to OVS.  I mean, using this link  https://ovirt.org/develop/release-management/features/network/provider-ph...   I read paragraph   Create a cluster with Network Type set to OVS. Now i have cluster with installing type Linux Bridge, how can i changed it to OVS? Best regards,  Egor