[ntp:questions] Output of ntpq -p regarding stratum level

David Woolley david at ex.djwhome.demon.co.uk.invalid
Thu Sep 11 21:43:25 UTC 2008


Nottorf, Stefan wrote:

> remote      refid   st t when poll reach delay offset   jitter
> ========================================================================
> ======
> *10.x.y.z   .PPS.    1 u  338 1024  377  0.454 -1.559   0.078
> name1.name  10.x.y.z 2 u  471 1024  376  0.209  1.763   0.093
> name2.name  10.x.y.z 2 u 1461 1024  374  0.001  2.652   0.206
> name3.name  10.x.y.z 2 u  596 1024  376  0.385  0.052   0.322
> LOCAL(0)    .LOCL.   5 l   59   64  377  0.000  0.000   0.001
> 
> In short: does the column st refer to the stratum of the remote host OR
> does it mean "If I synchronize to that remote host I will get to stratum

That of the remote host.

Incidentally, why are you running the local clock driver at stratum 5? 
That should only be done if your machine is a server and is being 
synchronised to a reliable time source by means other than NTP.  Local 
clock has no place at all on clients and should only be used on servers 
as a deliberate choice.  When synchrnonised to an unreliable source, 
like the undisciplined local clock (including that clock as a fall back 
to external servers), it should be set to the highest stratum that is 
still acceptable to its clients, if used at all.




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