On Tue, Aug 18, 2020 at 5:43 PM Marko Zec <z...@fer.hr> wrote:
> Since in ng_pipe we define BER as an one error in BER bits (integer
> value), wouldn't your formula P = 1 - BER yield results less than or
> equal to zero for all non-zero values of BER? The domain of P is
> [0..1], so that won't fly.
>
> Your analysis seems to be based on an assumption that the BER
> parameter is given as a multiplier to 0.5**48, which it is not.
>
> The proper fix would be to clarify the current BER parameter semantics
> in ng_pipe(4), not to break bridges with the existing scripts / software
> which rely on ng_pipe.
>
> Cheers,
>
> Marko
The manpage defined the BER parameter as follows:
u_int64_t ber; /* errors per 2^48 bits */
If we instead want to change the documentation to match the
implementation, that's fine too.
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