The ospf frr block multi-area command disables IP FRR on an OSPF multi-area adjacency interface.
The undo ospf frr block multi-area command restores the default configuration.
The ospf remote-lfa disable multi-area command disables remote LFA on a multi-area adjacency interface.
The undo ospf remote-lfa disable multi-area command enables remote LFA on a multi-area adjacency interface.
By default, IP FRR is enabled on multi-area adjacency interfaces.
By default, if the remote-lfa command is run in an OSPF process, remote LFA is enabled on all interfaces in the OSPF process; otherwise, remote LFA is disabled.