In message: <[EMAIL PROTECTED]>
Peter Jeremy <[EMAIL PROTECTED]> writes:
: There seems to be a bug in ntpd where the PLL can saturate at
: +/-500ppm and will not recover. This problem seems too occur mostly
: where the reference servers have lots of jitter (ie a fairly congested
: link to them).
Yes. This is a rather interesting misfeature of ntpd. Its rails are
at +/- 500ppm, and when it hits the rail it assumes that things are
too bad to continue and it stops.
Most PC clocks have a frequency error on the order of 10-150ppm, so it
doesn't take a whole lot of jitter from a conjectsted remote network
to exceed the limits...
Warner
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