1-8Configuring an NBMA or P2MP NeighborFor NBMA and P2MP interfaces (only when in unicast mode), you need to specify the link-local IPaddresses of their neighbors because such interfaces cannot find neighbors via broadcasting Hellopackets. You can also specify DR priorities for neighbors.Follow these steps to configure an NBMA or P2MP (unicast) neighbor and its DR priority:To do… Use the command… RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —Specify an NBMA or P2MP(unicast) neighbor and its DRpriorityospfv3 peer ipv6-address[ dr-priority dr-priority ][ instance instance-id ]RequiredConfiguring OSPFv3 Routing Information ControlThis section is to configure the control of OSPF routing information advertisement and reception, andredistribution from other protocols.Prerequisitesz Enable IPv6 packet forwardingz Configure OSPFv3 basic functionsConfiguring OSPFv3 Route SummarizationIf contiguous network segments exist in an area, you can use the abr-summary command tosummarize them into one network segment on the ABR. The ABR will advertise only the summary route.Any LSA falling into the specified network segment will not be advertised, reducing the LSDB size inother areas.Follow these steps to configure route summarization:To do… Use the command… RemarksEnter system view system-view —Enter OSPFv3 view ospfv3 [ process-id ] —Enter OSPFv3 area view area area-id —Configure a summary route abr-summary ipv6-addressprefix-length [ not-advertise ]RequiredNot configured by default