Operation Manual – IPv4 RoutingH3C S3610&S5510 Series Ethernet Switches Chapter 3 OSPF Configuration3-53Destination Cost Type NextHop AdvRouter Area0.0.0.0/0 1563 Inter-area 192.168.1.1 192.168.0.1 0.0.0.1172.16.1.0/24 1 Stub 172.16.1.1 172.16.1.1 0.0.0.1192.168.1.0/24 1562 Stub 192.168.1.2 172.16.1.1 0.0.0.1Total Nets: 3Intra Area: 2 Inter Area: 1 ASE: 0 NSSA: 0Note:After this configuration, routing entries on the stub router are further reduced,containing only one default external route.3.10.3 Configuring an OSPF NSSA AreaI. Network requirementsThe following figure shows an AS is split into three areas, where all switches run OSPF.Switch A and Switch B act as ABRs to forward routing information between areas.Switch D acts as the ASBR to redistribute routes (static routes).It is required to configure Area 1 as an NSSA area, and configure Router C as theASBR to redistribute static routes into the AS.II. Network diagramFigure 3-23 Network diagram for OSPF NSSA area configurationIII. Configuration procedure1) Configure IP addresses for interfaces.2) Configure OSPF basic functions (refer to Configuring OSPF Basic Functions ).
