Operation Manual – IPv4 RoutingH3C S5500-EI Series Ethernet Switches Chapter 3 OSPF Configuration3-263.5.1 PrerequisitesBefore configuring OSPF network types, you have configured:z IP addresses for interfaces, making neighboring nodes accessible with each otherat network layer.z OSPF basic functions.3.5.2 Configuring the OSPF Network Type for an InterfaceFollow these steps to configure the OSPF network type for an interface:To do… Use the command… RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —Configure a network typeospf network-type{ broadcast | nbma |p2mp | p2p }OptionalNot configured by defaultThe network type of aninterface depends on themedia type of the interface.Note:z Configuring a new network type for an interface overwrites the previous one (if any).z If the two interfaces on a link are both configured as the broadcast, NBMA or P2MPtype, they can not establish the neighbor relationship unless they are on the samenetwork segment.3.5.3 Configuring an NBMA NeighborFor NBMA interfaces that cannot broadcast hello packets to find neighbors, you need tospecify the IP addresses and DR priorities of neighbors manually.Follow these steps to configure a neighbor and its DR priority:To do… Use the command… RemarksEnter system view system-view —Enter OSPF view ospf [ process-id | router-id router-id ] * —Specify an NBMA neighborand its DR priority peer ip-address [ dr-priority dr-priority ] Required