H3C Technologies H3C S12500 Series Switches User Manual
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[SwitchA-ospf-1] quit
# Configure Switch C.
[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
NOTE:
•
To allow Switch C in the NSSA area to reach other areas within the AS, you must provide the
keyword default-route-advertise for the nssa command on Switch A (an ABR) so that Switch C can
obtain a default route.
•
Configuring the nssa command with the keyword no-summary on Switch A can reduce the routing
table size on NSSA switches. On other NSSA switches, you only need to configure the nssa
command.
# Display OSPF routing information on Switch C.
[SwitchC] display ospf routing
OSPF Process 1 with Router ID 10.4.1.1
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
0.0.0.0/0 65536 Inter 10.2.1.1 10.2.1.1 0.0.0.1
10.2.1.0/24 65535 Transit 10.2.1.2 10.4.1.1 0.0.0.1
10.4.1.0/24 3 Stub 10.4.1.1 10.4.1.1 0.0.0.1
Total Nets: 3
Intra Area: 2 Inter Area: 1 ASE: 0 NSSA: 0
4.
Configure route redistribution:
# Configure Switch C to redistribute static routes.
[SwitchC] ip route-static 3.1.3.1 24 10.4.1.2
[SwitchC] ospf
[SwitchC-ospf-1] import-route static
[SwitchC-ospf-1] quit
# Display OSPF routing information on Switch D.
OSPF Process 1 with Router ID 10.5.1.1
Routing Tables
Routing for Network
Destination Cost Type NextHop AdvRouter Area
10.2.1.0/24 22 Inter 10.3.1.1 10.3.1.1 0.0.0.2
10.3.1.0/24 10 Transit 10.3.1.2 10.3.1.1 0.0.0.2
10.4.1.0/24 25 Inter 10.3.1.1 10.3.1.1 0.0.0.2