Hi Jason,
When configuring frame-relay, we have two options:
The links above will show you a configuration example for each. The main difference is that point-to-multipoint uses a single subnet for all PVCs while point-to-point uses a different subnet for each PVC.
Now when it comes to OSPF, this can be confusing yes…here are all network types:
One of the main differences between broadcast/non-broadcast and the point-to-multipoint network types is the next hop that we use, take a look here:
OSPF network types IP next hop
Frame-relay is NBMA but with the correct frame-relay maps, we can “emulate” broadcast traffic so that you can forward multicast/broadcast traffic on the PVCs.
Rene