[ntp:questions] project ntp.br

David Woolley david at ex.djwhome.demon.co.uk.invalid
Thu Oct 4 21:13:55 UTC 2007


In article <1191513268_6661 at sp12lax.superfeed.net>,
Antonio M. Moreiras <antonio at moreiras.eng.br> wrote:

>                 |(periodically assures the
>                 | accuracy with the official
>                 | brazilian time - that is
>                 | in last instance UTC)
>                 #
>        ** Rubidium clock **

How far is this allowed to get from UTC?  If the maximum discrepancy isn't
very small compared with the combination of "precision" and half minimum
round trip time to a client, and given this is a high profile server, you
should modify the source code to add the maximum error into the root 
dispersion calculation.

If you don't do this, someone using your source and something more 
directly tied to UTC may find that the error bounds don't overlap, and
one gets thrown out.




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