[ntp:questions] NTP - orphan mode with SAME stratum ("tos orphan 6") FAIL to sync.

David Woolley david at ex.djwhome.demon.co.uk.invalid
Tue Apr 7 06:52:20 UTC 2009

Steve Kostecke wrote:

> It is imcumbent on the operator of an ntpd (or some "ntp client") to
> use enough time sources so that an outlier that is off by 120ms will be
> detected and voted out.

Unruh actually meant 128 - epsilon milliseconds.  The outlyer is the 
machine that is just starting!

If all the servers cluster within 1ms, but the machine starts up with an 
error of 125 ms, ntpd will not step it, but will let it converge over 
several hours.

More information about the questions mailing list