David Woolley wrote:
skillz...@gmail.com wrote:
2. Separate offset sync from rate sync. What I wasn't sure about is
why the rate sync would be so much more stable than offset sync since
they seem to both come from the same packet exchanges. Is the
advantage that the rate sync is smoothed over time whereas the offset
sync isn't?
I seem to remember that NTPV3 had a fast loop for phase and a slower
loop for frequency.
NTPD, not just V3, is a hybrid FLL/PLL, i.e. frequency first, then phase.
Terje
--
- <Terje.Mathisen at tmsw.no>
"almost all programming can be viewed as an exercise in caching"
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