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

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## Configure Virtual Link and Route Summarization

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. Exit Router Configuration mode.

       SEFOS(config-router)# end

5. Enter Global Configuration mode in SEFOS4.

       SEFOS# configure terminal

6. Enable OSPF globally in SEFOS4.

       SEFOS(config)# ipv6 router ospf

7. Configure the OSPF router ID.

       SEFOS(config-router)# router-id 10.0.0.4

8. Configure the virtual link for backbone connectivity.

       SEFOS(config-router)# area 0.0.0.3 virtual-link 10.0.0.6 100
       SEFOS(config-router)# area 0.0.0.3 virtual-link 10.0.0.5 120

9. Exit Router Configuration mode.

       SEFOS(config-router)# end

10. Enter Global Configuration mode in SEFOS5.

        SEFOS# configure terminal

11. Enable OSPF globally in SEFOS5.

        SEFOS(config)# ipv6 router ospf

12. Configure the OSPF router ID.

        SEFOS(config-router)# router-id 10.0.0.5

13. Configure the virtual link for backbone connectivity.

        SEFOS(config-router)# area 0.0.0.3 virtual-link 10.0.0.4 120

14. Exit Router Configuration mode.

        SEFOS(config-router)# end

15. Enter Global Configuration mode in SEFOS6.

        SEFOS# configure terminal

16. Enable OSPF globally in SEFOS6.

        SEFOS(config)# ipv6 router ospf

17. Configure the OSPF router ID.

        SEFOS(config-router)# router-id 10.0.0.6

18. Configure the virtual link for backbone connectivity.

        SEFOS(config-router)# area 0.0.0.3 virtual-link 10.0.0.4 100

19. Exit Router Configuration mode.

        SEFOS(config-router)# end

20. Enter Global Configuration mode in SEFOS8.

        SEFOS# configure terminal

21. Enable OSPF globally in SEFOS8.

        SEFOS(config)# ipv6 router ospf

22. Configure the OSPF router ID.

        SEFOS(config-router)# router-id 10.0.0.8

23. Exit configuration mode.

        SEFOS(config-router)# end

24. View the route summarization information in SEFOS1.

        SEFOS# show ipv6 ospf area-range

        Ospfv3  Summary Address Configuration Information

        Network                 PfxLength  LSA Type  Area        Effect         Tag
        fec0::1111:0:0              96     Summary   0.0.0.0     advertise      0
        fec0::2856:0:0              96     Summary   0.0.0.6     advertise      0

25. View the virtual link and the status of the link in SEFOS4.

        SEFOS# show ipv6 ospf virtual-links

        Interface State: PointToPoint, Neighbor State: FULL
        Transit Area: 0.0.0.3,  Virtual Neighbor: 10.0.0.5
        Intervals Configured for the Virtual Interface:
        Hello: 10, Dead: 60, Transit: 1, Retransmit : 5

        Interface State: PointToPoint, Neighbor State: FULL
        Transit Area: 0.0.0.3,  Virtual Neighbor: 10.0.0.6
        Intervals Configured for the Virtual Interface:
        Hello: 10, Dead: 60, Transit: 1, Retransmit : 5

26. View the virtual link in SEFOS5.

        SEFOS# show ipv6 ospf virtual-links

        Interface State: PointToPoint, Neighbor State: FULL
        Transit Area: 0.0.0.3,  Virtual Neighbor: 10.0.0.4
        Intervals Configured for the Virtual Interface:
        Hello: 10, Dead: 60, Transit: 1, Retransmit : 5

27. View the virtual link in SEFOS6.

        SEFOS# show ipv6 ospf virtual-links

        Interface State: PointToPoint, Neighbor State: FULL
        Transit Area: 0.0.0.3,  Virtual Neighbor: 10.0.0.4
        Intervals Configured for the Virtual Interface:
        Hello: 10, Dead: 60, Transit: 1, Retransmit : 5

28. View the route available to reach ABR SEFOS1.

        SEFOS# show ipv6 ospf border-routers

        Ospfv3 Process Border Router Information

        Destination    Type              NextHop        Cost    Rt Type     Area Id
        10.0.0.1        ABR ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff0         0.0.0.0
        10.0.0.4       ABR    fe80::207:2ff:fe03:401      1     intraArea   0.0.0.3
        10.0.0.5       ABR    fe80::207:2ff:fe03:401      2     intraArea   0.0.0.3

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