On May 30, 2020, at 06:46, Anand Buddhdev <ana...@ripe.net> wrote:
> 
> You can't read from /dev/null. You get nothing from it. You're better off 
> using /dev/random, for example. That will give you a continuous stream of 
> random bytes.

/dev/random will block when you run out of entropy, so you won’t get a 
consistent flow of data after some time.  /dev/zero should always return data, 
though.   It I agree it makes more sense to use iperf. 

--
Jonathan Billings <billi...@negate.org>
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