374
[SwitchA-ospfv3-1] quit
# Display OSPFv3 routing information on Switch D.
[SwitchD] display ospfv3 1 routing
OSPFv3 Process 1 with Router ID 4.4.4.4
-------------------------------------------------------------------------
I - Intra area route, E1 - Type 1 external route, N1 - Type 1 NSSA route
IA - Inter area route, E2 - Type 2 external route, N2 - Type 2 NSSA route
* - Selected route
*Destination: 2001::/64
Type : IA Cost : 2
NextHop : FE80::20C:29FF:FEB9:F2EF Interface: Vlan400
AdvRouter : 3.3.3.3 Area : 0.0.0.2
Preference : 10
*Destination: 2001:1::/64
Type : IA Cost : 3
NextHop : FE80::20C:29FF:FEB9:F2EF Interface: Vlan400
AdvRouter : 3.3.3.3 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
*Destination: 1234::/64
Type : E2 Cost : 1
NextHop : FE80::20C:29FF:FEB9:F2EF Interface: Vlan400
AdvRouter : 2.2.2.2 Area : 0.0.0.2
Preference : 10
Total: 4
Intra area: 1 Inter area: 2 ASE: 1 NSSA: 0
The output shows an AS external route imported from the NSSA area exists on Switch D.
OSPFv3 DR election configuration example
Network requirements
As shown in Figure 90:
• Configure router priority 100 for Switch A, the highest priority on the network, so it will become
the DR.
• Configure router priority 2 for Switch C, the second highest priority on the network, so it will
become the BDR.
• Configure router priority 0 for Switch B, so it cannot become a DR or BDR.
• Switch D uses the default router priority 1.
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