Enable OSPFv3 for IPv6 by specifying an OSPF process ID and an area in INTERFACE mode. If you have not created an OSPFv3 process,it is created automatically. All IPv6 addresses configured on the interface are included in the specified OSPF process.NOTE: IPv6 and OSPFv3 do not support Multi-Process OSPF. You can only enable a single OSPFv3 process. To create multipleOSPF processes you need to have multiple VRFs on a switch.Set the time interval between when the switch receives a topology change and starts a shortest path first (SPF) calculation.timers spf delay holdtimeNOTE: To set the interval time between the reception of topology changes and calculation of SPF in milli seconds, use thetimers spf delay holdtime msec command.ExampleDell#confDell(conf)#ipv6 router ospf 1Dell(conf-ipv6-router_ospf)#timer spf 2 5 msecDell(conf-ipv6-router_ospf)#Dell(conf-ipv6-router_ospf)#show config!ipv6 router ospf 1timers spf 2 5 msecDell(conf-ipv6-router_ospf)#Dell(conf-ipv6-router_ospf)#endDell#Enabling IPv6 Unicast RoutingTo enable IPv6 unicast routing, use the following command.• Enable IPv6 unicast routing globally.CONFIGURATION modeipv6 unicast routingAssigning IPv6 Addresses on an InterfaceTo assign IPv6 addresses to an interface, use the following commands.1 Assign an IPv6 address to the interface.CONF-INT-type slot/port modeipv6 address ipv6 addressIPv6 addresses are normally written as eight groups of four hexadecimal digits; separate each group by a colon (:).The format is A:B:C::F/128.2 Bring up the interface.CONF-INT-type slot/port modeno shutdown622 Open Shortest Path First (OSPFv2 and OSPFv3)
