While trying the data-plane-adoption using scenario A the adoption will fail on ovn-adoption when ovn-copy-data pod is trying to backup the tripleo OVN databases.

This happens bc tripleo controllers has a default iptables policy of drop all, and regarding OVN DBs it has a rule matching by src IP == tripleo_internalapi_cidr and dst port == SB/NB port.

If using scenario A tripleo_internalapi_cidr != podifiec_internalapi_cidr, so packet will get dropped and ovn-adoption will fail.

This also needs to be clarified on the documentation.