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

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## Disable a Demand Extension

This example disables demand extensions on SEFOS1 (router `10.0.0.1`).

1. Enter Global Configuration mode in SEFOS1.

       SEFOS# configure terminal

2. Enable OSPF globally in the switch SEFOS1.

       SEFOS(config)# ipv6 router ospf

3. Configure the OSPF router ID.

       SEFOS(config-router)# router-id 10.0.0.1

4. Disable the demand-extension.

       SEFOS(config-router)# no demand-extensions

5. Exit Router Configuration mode.

       SEFOS(config-router)# end

6. View the result of the configuration.

       SEFOS# show ipv6 ospf interface vlan 11

               Ospfv3  Interface  Information

       Interface Name: vlan11      Interface Id: 41    Area Id: 0.0.0.0
       Local Address: fe80::214:4fff:fe6c:628f         Router Id: 10.0.0.1
       Network Type: BROADCAST     Cost: 1             State: DR
       Designated Router Id: 10.0.0.1      local address: fe80::214:4fff:fe6c:628f
       Backup Designated Router Id: 10.0.0.2      local address: fe80::214:4fff:fe6c:d04d
       Transmit Delay: 1 sec        Priority: 1         IfOptions: 0x0
       Timer intervals configured:
       Hello: 10, Dead: 40, Retransmit: 5, Poll: 120
       Demand Circuit: Disable            Neighbor Probing: Disable
       Nbr Probe Retrans Limit: 10        Nbr Probe Interval: 120
       Hello due in 6 sec
       Neighbor Count is: 1
       Adjacent with neighbor 10.0.0.2

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