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CHAPTER 15: OSPF
`FDN40ConfigUM/20160505
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Screen 15-5: OSPF Area Aggregation
15.5.13.6 Configuring Area-default Cost
Configuring Area-default Cost specifies the cost for the default summary
route sent into a stub or NSSA.
route sent into a stub or NSSA.
15.5.13.6.1
CLI Configuration
Execute the following commands to configure the Area-default Cost.
1. Enter the Global Configuration mode in FDN40-1.
UltOs# configure terminal
2. Enable OSPF globally in the switch FDN40-1.
UltOs(config)# router ospf
3. Configure the OSPF router-id.
UltOs(config-router)# router-id 10.10.2.1
4. Configure the OSPF interface.
UltOs(config-router)# network 10.4.0.1 area 0.0.0.0
UltOs(config-router)# network 10.10.2.1 area 0.0.0.6
5. Configure the area 0.0.0.6 as an NSSA area.
UltOs(config-router)# area 0.0.0.6 nssa
6. Configure the cost for the default summary route sent into the NSSA area.
UltOs(config-router)# area 0.0.0.6 default-cost 50
Configure the default cost for the default summary route sent into NSSA area
by executing the following command.
UltOs(config-router)# no area 0.0.0.6 default-cost
Sample NSSA Configuration, summary address configuration and area-
default cost
default cost