Characteristics of Cisco’sbroadcast parameter include: DR and BDR are elected and require full connectivity with all other routers. Can be configured for a full-mesh topology or a static election of the DR based on the interface priority. O...
http://www.ebrahma.com/2013/10/broadcast-mode-and-point-to-point-mode-ospf/Labels: Broadcast-Mode, DR-and-BDR, multicast-OSPF, One-IP-subnet., OSPF, Partial-Mesh, Point-to-point-Mode, Point-to-point-Mode--OSPF, star-topology