Richard, thank you for your reply.
> The offset numbers are not the "real offsets" but rather an
> instantaneous estimation. You need another method, like a PPS, to
> measure the actual offset. This can be done once as a calibration
> procedure. Another way is to use the reverse measurement (see nsm -
> NetSync Monitor client).
>
In fact, I'm using the lock state ("s0", "s1", "s2") as an indicator of the
offset and PTP status: "s2" means to me that the clocks are synchronized
and the clock difference is under a certain quantity. So, do you advise me
to not use the lock state and master offset to check that, and instead
check "nsm"? I'd like to have "something" that could tell me if the PTP
synchronization has some problem.
>
> The larger question is why your offsets are so large and jittery.
> Are you using SW time stamping? Is your network full of non-PTP
> equipment?
>
I'm using SW time stamping. The network also contains non-PTP devices, but
it's not "full".
>
> If you are using HW time stamping, then you can mitigate the effect of
> the noisy network by adjusting the PI weights (like kP = .1, kP = .001)
>
> HTH,
> Richard
>
Thank you,
Stefano
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