*Destination: 2001:2::/64
Type
NextHop
*Destination: 2001:3::/64
Type
NextHop
Total: 5
Intra area: 1
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 to further reduce the stub area routing table size:
# Configure Area 2 as a totally stub area on Router C.
[RouterC-ospfv3-1-area-0.0.0.2] stub no-summary
# Display OSPFv3 routing table on Router D.
[RouterD] display ospfv3 routing
-------------------------------------------------------------------------
E1 - Type 1 external route,
E2 - Type 2 external route,
*Destination: ::/0
Type
NextHop
*Destination: 2001:2::/64
Type
NextHop
Total: 2
Intra area: 1
The output shows that route entries are reduced. All indirect routes are removed, except the default
route.
Configuring OSPFv3 DR election
Network requirements
Configure router priority 100 for Router A, the highest priority on the network, so it will become the
•
DR.
•
Configure router priority 2 for Router C, the second highest priority on the network, so it will become
the BDR.
Configure router priority 0 for Router B, so it cannot become a DR or BDR.
•
Router D uses the default router priority 1.
•
: I
: directly-connected
: IA
: FE80::F40D:0:93D0:1
Inter area: 4
OSPFv3 Process 1 with Router ID 4.4.4.4
IA - Inter area route,
*
: IA
: FE80::F40D:0:93D0:1
: I
: directly-connected
Inter area: 1
ASE: 0
- Selected route
ASE: 0
357
Cost
: 1
Interface: Eth1/2
Cost
: 4
Interface: Eth1/2
I - Intra area route
Cost
: 11
Interface: Eth1/2
Cost
: 1
Interface: Eth1/2