Question: I have an ATM to FR hub and spoke. Im running OSPF.
Why use point-to-multipoint subinterfaces? In what situation would one do that? What are the advantages of doing that over creating point-to-point subinterfaces on the hub and spoke routers with dynamic DLCI mapping (Inverse ARP), instead of the configuration overhead of point-to-multipoint with static mappings?
Any insight will be appreciated