Configure the OSPF Hello interval, which is the number of seconds between Hello packets sent on this interface.
default ip ospf hello-interval
ip ospf hello-interval <1-65535>
ip ospf port {slot/port[/sub-port][-slot/port[/sub-port]][,...]} hello-interval <1-65535>
Identifies the slot and port in one of the following formats: a single slot and port (slot/port), a range of slots and ports (slot/port-slot/port), or a series of slots and ports (slot/port,slot/port,slot/port). If the platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.
The default is 10.
GigabitEthernet Interface Configuration