r2 - 2008-08-30 - 01:40:36 - HarlanStennYou are here: NTP >  Dev Web > DevelopmentIssues > NtpdsSyncStatus
NTF needs your help to qualify to participate in the Combined Federal Campaign so we can continue our mission to improve Network Time. We only need a few thousand dollars more by December 31st - any sized donation helps! Please join an NTF Consortium or make a donation to NTF now! THANKS!

The Synchronization Status of ntpd

There is a need to be able to easily and consistently determine if system clock and/or ntpd 's idea of its internal state and the system clock are "correct" (for some definition of correct).

To offer this ability, it seems to me that the first thing we need to nail down is the definition and specification of "correct".

The definition of 'correct' time

How about the following:

  • The decoded system status bits contain sync_ntp
  • (obsolete) ntpd is in state S_SYNC (which Dave is renaming to EVNT_SYNC)
  • any slew adjustment in-process is under X (where X is configurable)

  • Do we care about the root dispersion?
Edit | WYSIWYG | Attach | Printable | Raw View | Backlinks: Web, All Webs | History: r2 < r1 | More topic actions
SSL security by CAcert
Get the CAcert Root Certificate
This site is powered by the TWiki collaboration platform
IPv6 Ready
Copyright & 1999-2014 by the contributing authors. All material on this collaboration platform is the property of the contributing authors. Ideas, requests, problems regarding the site? Send feedback