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| Sun Ethernet Fabric Operating System ### OSPF Administration Guide

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## Configure the Area Default Cost

This procedure specifies the cost for the default summary route sent into a stub or NSSA.

1. Enter Global Configuration mode in SEFOS1.

       SEFOS# configure terminal

2. Enable OSPF globally in the switch SEFOS1.

       SEFOS(config)# router ospf

3. Configure the OSPF router ID.

       SEFOS(config-router)# router-id 10.10.2.1

4. Configure the OSPF interface.

       SEFOS(config-router)# network 10.4.0.1 area 0.0.0.0
       SEFOS(config-router)# network 10.10.2.1 area 0.0.0.6

5. Configure the area `0.0.0.6` as an NSSA area.

       SEFOS(config-router)# area 0.0.0.6 nssa

6. Configure the cost for the default summary route sent into the NSSA area.

       SEFOS(config-router)# area 0.0.0.6 default-cost 50

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