[ntp:questions] Mixed maxpoll values for mixed LAN/Internet servers - sensible?

Maarten Wiltink maarten at kittensandcats.net
Thu Feb 26 12:28:41 UTC 2009


"David J Taylor" <david-taylor at blueyonder.neither-this-bit.nor-this.co.uk>
wrote in message news:qctpl.13$Lc7.6 at text.news.virginmedia.com...

> It's been suggested that if I have a mixture of a "known-good" (i.e.
> GPS/PPS-based) LAN server, and some Internet-based backup servers, I
> could use an ntp configuration file with different maxpolls, with the
> idea that syncing more often to a good source will produce even lower
> offsets.

Polling more often will produce lower offsets, yes, but mostly because
it doesn't allow time for larger errors to grow. Once phase error is
no longer dominant, the poll interval is lengthened to better correct
frequency error. Not an idle pursuit.

Groetjes,
Maarten Wiltink




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