OSPF Frame-relay

• OSPF Frame-relay point-to-point networks: No DR/BDR :: Only: 224.0.0.5
• OSPF Frame-relay broadcast networks: DR/BDR :: Hellos: 224.0.0.5
• Only DR/BDR listens to 224.0.0.6 & broadcast on 0.5
• OSPF Frame-relay NBMA networks: DR/BDR :: No multicasts :: Neighbors statically defined :: Hub=DR
• OSPF Frame-relay point-to-multipoint networks: No DR/BDR :: IP OSPF network point-to-multipoint :: Hellos: 224.0.0.5 [broadcasts]