Abstract: In order to solve the issues of forwarding packets abnormally,this paper designs the Hub-Spoke topology of the frame-relay multipoint interface network,and configures the non-broadcast multi-point interface network by neighbors discovery,Designated Router/Backup Designated Router election,establishing frame-relay mappings,etc.According to the test,the network operation is stable and reliable,vast engineering personnel with beneficial references in commissioning frame relay multipoint interface network was provided.