The new lightweight keep alive method will be configured using the 'keepalive' configuration option. Valid values will include 'yes', 'no', and the number of seconds in between keep alive packets. If 'yes' is used the interval will be 60 seconds.
A new scheduled item will be created that is very much like the OPTIONS function except it will send the small packet to the endpoint. Reloading configuration will remove the scheduled item if present and schedule a new one at the proper interval if configured.