port = ovsrec_port_insert(txn_from_openvswitch(ovs));
ovsrec_port_set_name(port, br_name);
ovsrec_port_set_interfaces(port, &iface, 1);
port = ovsrec_port_insert(txn_from_openvswitch(ovs));
ovsrec_port_set_name(port, br_name);
ovsrec_port_set_interfaces(port, &iface, 1);