Operation Manual – IPv4 RoutingH3C S7500E Series Ethernet Switches Chapter 3 OSPF Configuration3-27To do… Use the command… RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —Configure a router priorityfor the interface ospf dr-priority priorityOptionalThe default router priorityis 1.Note:The DR priority configured with the ospf dr-priority command and the one with thepeer command have the following differences:z The former is for actual DR election.z The latter is to indicate whether a neighbor has the election right or not. If youconfigure the DR priority for a neighbor as 0, the local router will consider theneighbor has no election right, and thus no hello packet is sent to this neighbor,reducing the number of hello packets for DR/BDR election on networks. However, ifthe local router is the DR or BDR, it sends hello packets to the neighbor with priority0 for adjacency establishment.3.6 Configuring OSPF Route ControlThis section covers how to control OSPF routing information advertisement andreception, and route redistribution from other protocols.3.6.1 PrerequisitesBefore configuring this task, you have configured:z IP addresses for interfacesz OSPF basic functionsz Corresponding filters if routing information filtering is needed.3.6.2 Configuring OSPF Route SummarizationOSPF route summarization includes:z Configuring route summarization between OSPF areas on an ABRz Configuring route summarization when redistributing routes into OSPF on anASBRFollow these steps to configure route summarization between OSPF areas on an ABR:
