инструмент генерации сетевых пакетов / утилита ping (Network packet generation tool / ping utility)
TIMING AND PERFORMANCE OPTIONS
--delay time (Delay between probes)
This option lets you control for how long will Nping wait
before sending the next probe. Like in many other ping tools,
the default delay is one second. time must be a positive
integer or floating point number. By default it is specified
in seconds, however you can give an explicit unit by
appending ms for milliseconds, s for seconds, m for minutes,
or h for hours (e.g. 2.5s, 45m, 2h).
--rate rate (Send probes at a given rate)
This option specifies the number of probes that Nping should
send per second. This option and --delay are inverses; --rate
20 is the same as --delay 0.05. If both options are used,
only the last one in the parameter list counts.
