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| Sun Ethernet Fabric Operating System ### OSPFv3 Administration Guide

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## Configure the Metric Type for an NSSA

If default summary routes are selected, you can configure the metric type for the default summary route that is sent to an NSSA.

This example configures the IP address `0.0.0.6` as an NSSA in SEFOS1 (router ID `10.0.0.1`) and specifies that the metric type for the NSSA is Type-2 external cost (value 3).

1. Enter Global Configuration mode in SEFOS1.

       SEFOS# configure terminal

2. Enable OSPF globally in SEFOS1.

       SEFOS(config)# ipv6 router ospf

3. Configure the OSPF router ID.

       SEFOS(config-router)# router-id 10.0.0.1

4. Configure an area as an NSSA.

       SEFOS(config-router)# area 0.0.0.6 nssa

5. Configure the metric type as Type-2 external cost (value 3).

       SEFOS(config-router)# area 0.0.0.6 default-metric type 3
       SEFOS(config-router)# exit

6. Ensure that the correct metric type is set.

       SEFOS# show ipv6 ospf areas

       OSPFV3  AREA  CONFIGURATION  INFORMATION

       AreaId: 0.0.0.0                 Area Type: NORMAL AREA
       Spf Calculation: 14 (times)     Area Bdr Rtr Count: 0
       As Bdr Rtr Count: 0             Area Summary: Send Summary

       AreaId: 0.0.0.6                 Area Type: NSS AREA
       Spf Calculation: 14 (times)     Area Bdr Rtr Count: 0
       As Bdr Rtr Count: 0             Area Summary: Send Summary
       Stub Metric: 0x1                Stub Metric Type: 3
       Translator Role: Candidate      Translator State: Elected/Enabled
       Nssa Stability Interval: 40

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