374
Total: 5
Intra area: 1 Inter area: 4 ASE: 0
The output shows that a default route is added, and its cost is the cost of a direct route plus the
configured cost.
4. Configure Area 2 as a totally stub area:
# Configure Area 2 as a totally stub area on Switch C.
[SwitchC-ospfv3-1-area-0.0.0.2] stub no-summary
# Display OSPFv3 routing table information on Switch D.
[SwitchD] display ospfv3 routing
OSPFv3 Process 1 with Router ID 4.4.4.4
-------------------------------------------------------------------------
E1 - Type 1 external route, IA - Inter area route, I - Intra area route
E2 - Type 2 external route, * - Selected route
*Destination: ::/0
Type : IA Cost : 11
NextHop : FE80::F40D:0:93D0:1 Interface: Vlan400
AdvRouter : 4.4.4.4 Area : 0.0.0.2
Preference : 10
*Destination: 2001:2::/64
Type : I Cost : 1
Nexthop : :: Interface: Vlan400
AdvRouter : 4.4.4.4 Area : 0.0.0.2
Preference : 10
Total: 2
Intra area: 1 Inter area: 1 ASE: 0
The output shows that route entries are reduced. All indirect routes are removed, except the default
route.
OSPFv3 NSSA area configuration example
Network requirements
As shown in Figure 89:
• Configure OSPFv3 on all switches and split the AS into three areas.
• Configure Switch B and Switch C as ABRs to forward routing information between areas.
• Configure Area 1 as an NSSA area and configure Switch A as an ASBR to redistribute static routes
into the AS.
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