115
• Configure Area 1 as an NSSA area and configure Switch C as an ASBR to redistribute static
routes into the AS.
Figure 28 Network diagram
Configuration procedure
1. Configure IP addresses for interfaces.
2. Enable OSPF (see "Basic OSPF configuration example").
3. Configure Area 1 as an NSSA area:
# Configure Switch A.
<SwitchA> system-view
[SwitchA] ospf
[SwitchA-ospf-1] area 1
[SwitchA-ospf-1-area-0.0.0.1] nssa
[SwitchA-ospf-1-area-0.0.0.1] quit
[SwitchA-ospf-1] quit
# Configure Switch C.
<SwitchC> system-view
[SwitchC] ospf
[SwitchC-ospf-1] area 1
[SwitchC-ospf-1-area-0.0.0.1] nssa
[SwitchC-ospf-1-area-0.0.0.1] quit
[SwitchC-ospf-1] quit
# Display OSPF routing information on Switch C.
[SwitchC] display ospf routing
OSPF Process 1 with Router ID 10.4.1.1
Routing Table
Routing for network
Destination Cost Type NextHop AdvRouter Area
10.2.1.0/24 3 Transit 10.2.1.2 10.4.1.1 0.0.0.1
10.3.1.0/24 7 Inter 10.2.1.1 10.2.1.1 0.0.0.1
10.4.1.0/24 3 Stub 10.4.1.1 10.4.1.1 0.0.0.1
10.5.1.0/24 17 Inter 10.2.1.1 10.2.1.1 0.0.0.1
10.1.1.0/24 5 Inter 10.2.1.1 10.2.1.1 0.0.0.1
Total nets: 5
Area 0
Area 1
NSSA
Area 2
Switch C
Vlan-int100
10.1.1.2/24
Vlan-int100
10.1.1.1/24
Vlan-int300
10.4.1.1/24
Vlan-int200
10.2.1.2/24
Switch B
Vlan-int200
10.3.1.1/24
Vlan-int200
10.3.1.2/24
Switch A
Vlan-int200
10.2.1.1/24
Vlan-int300
10.5.1.1/24
Switch D
ASBR
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