HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 108
Configuring an OSPF stub area, Network requirements, Configuration procedure
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5. Configure summary route 10.0.0.0/8 on Switch B and advertise it: [SwitchB-ospf-1] asbr-summary 10.0.0.0 8 # Display the OSPF routing table of Switch A. [SwitchA] display ip routing-table Routing Tables: Public Destinations : 5 Routes : 5 Destination/Mask Proto Pre Cost NextHop Interface 10.0.0.0/8 O_ASE 150 2 11.2.1.1 Vlan100 11.2.1.0/24 Direct 0 0 11.2.1.2 Vlan100 11.2.1.2/32 Direct 0 0 127.0.0.1 InLoop0 127.0.0.0/8 Direct 0 0 127.0.0.1 InLoop0 127.0.0.1/32 Direct 0 0 127.0.0.1 InLoop0 The output shows that routes 10.1.1.0/24, 10.2.1.0/24, 10.3.1.0/24 and 10.4.1.0/24 are summarized into one route 10.0.0.0/8. Configuring an OSPF stub area Network requirements Figure 36 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). Configure Area 1 as a stub area, reducing LSAs to this area without affecting route reachability. Figure 36 Network diagram Configuration procedure 1. Configure IP addresses for interfaces. (Details not shown.) 2. Configure OSPF basic functions. (See "Configuring OSPF basic functions") 3. Configure route redistribution: # Configure Switch D to redistribute static routes. system-view [SwitchD] ip route-static 3.1.2.1 24 10.5.1.2 [SwitchD] ospf [SwitchD-ospf-1] import-route static 98
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