Sets the length of time between the transmission of hello packets that an interface sends to neighbor routers.
The length of time between the transmission of hello packets is set to 10 seconds.
Interface subtype configuration mode
If you change the hello interval, the dead interval is automatically changed to a value that is four times that of the new hello interval, unless the dead interval is also explicitly configured using the ipv6 ospf dead-interval command.
The recommended setting is that:
The running-config command displays only explicitly configured values of the dead interval, which means that a value that was automatically changed as the result of a hello interval change is not displayed.
The no form of the command restores the default value.
The following example sets the hello interval to 20 on a specific OSPFv3 Ethernet interface.
device# configure terminal device(config)# interface ethernet 1/1 device(conf-if-eth-1/1)# ipv6 ospf hello-interval 20