How should a router that is being used in a Frame Relay network be configured to keep split horizon issues from preventing routing updates
Answer & Explanation
A) Configure a seperate subinterface for each PVC with a unique DLCI and subnet assigned to the subinterface
If you have a serial port configured with multiple DLCIs connected to multiple remote sites, split horizon rules stop route updates received on an interface from being sent out the same interface. By creating subinterfaces for each PVC, you can avoid the split horizon issues when using Frame Relay.