Dell EMC SmartFabric OS10 User Guide Release 10.5.2

Interface OSPFv3 Parameters

1. Enter the interface to change the OSPFv3 parameters in CONFIGURATION mode.

   interface interface-name

2. Change the cost associated with OSPFv3 traffic on the interface in INTERFACE mode, from 1 to 65535. The default depends on the interface speed.

   ipv6 ospf cost

3. Change the time interval the router waits before declaring a neighbor dead in INTERFACE mode, from 1 to 65535. The default is 40. The dead interval must be four times the hello interval. The dead interval must be the same on all routers in the OSPFv3 network.

   ipv6 ospf dead-interval seconds

4. Change the time interval in seconds between hello-packet transmission in INTERFACE mode, from 1 to 65535. The default is 10. The hello interval must be the same on all routers in the OSPFv3 network.

   ipv6 ospf hello-interval seconds

   NOTE:When you copy and paste the ip ospf dead-interval and ip ospf hello-interval commands from the show running configuration output, the changes may not take effect if the configured dead interval is less than the default hello interval. This does not cause any issues while you save the configuration and reload the switch.
5. Change the priority of the interface, which determines the DR for the OSPFv3 broadcast network in INTERFACE mode, from 0 to 255. The default is 1.

   ipv6 ospf priority number

6. Change the default setting to ignore the MTU mismatch with the peer, when the MTU size of the peer interface is higher than the local MTU size.

   ipv6 ospf mtu-ignore

OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# ipv6 ospf hello-interval 5
OS10(conf-if-eth1/1/1)# ipv6 ospf dead-interval 20
OS10(conf-if-eth1/1/1)# ipv6 ospf priority 4
OS10(conf-if-eth1/1/1)# ipv6 ospf mtu-ignore

OS10# show ipv6 ospf interface
ethernet1/1/1 is up, line protocol is up
  Link Local Address fe80::20c:29ff:fe0a:d59/64, Interface ID 5
  Area 0.0.0.0, Process ID 200, Instance ID 0, Router ID 10.0.0.2
  Network Type broadcast, Cost: 1
  Transmit Delay is 1 sec, State BDR, Priority 1
  Designated Router on this network is 2.2.2.2
  Backup Designated router on this network is 10.0.0.2 (local)
  Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
  Neighbor Count is 1, Adjacent neighbor count is 1
    Adjacent with neighbor 2.2.2.2(Designated Router)
OS10# do show running-configuration ospfv3
!
interface ethernet1/1/9
ipv6 ospf 1 area 0.0.0.0
ipv6 ospf dead-interval 20
ipv6 ospf hello-interval 5
ipv6 ospf mtu-ignore