[time-nuts] NIST time services

Poul-Henning Kamp phk at phk.freebsd.dk
Mon Mar 24 19:03:28 EDT 2014


In message <E1WSBOI-000Dny-MW at stenn.ntp.org>, Harlan Stenn writes:
>"Poul-Henning Kamp" writes:
>> In message <CABbxVHuQc0144==21mDa_R8ErKov=EM+9rVRbPggeXNZZTjnAg at mail.gmail.co
>> m>
>> , Chris Albertson writes:
>> 
>> >Yes.  NTP calls it "root distance" [...]
>> 
>> And it is generally useless, because people don't calibrate it.
>
>http://bugs.ntp.org/show_bug.cgi?id=2587
>
>Because I've forgotten to open a ticket on this too often for too long.

I'm actually not certain that it helps, even if you document it.

It's sort of an "administrative" distance and it unfairly penalizes
any GNSS in favour of terrestial if you calibrate it according to the
original intent...

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.


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