This read-write value sets how long, in seconds from 1 to 60 with a default of 1, the device waits for a ping6 reply before declaring that probe timed out. An admin increases this on high-latency or lossy paths to avoid false timeout failures for a target that is actually reachable but slow to respond. For example, raising this object to 10 seconds would be appropriate when testing reachability to a target reached over a satellite link.