[ntp:questions] Slow convergence loopstats (but nice results)

schmidt.rich at gmail.com schmidt.rich at gmail.com
Wed Dec 11 19:29:23 UTC 2013


  I do the latter. To use PTP to timestamp one would have to modify NTP source outside of refclock_phc(), which we would not presume to do. However the PHC loopstats has a standard deviation of 0.58 microseconds, so we are not far off in using standard NTP timestamping. 

Rich Schmidt

> Do you use the PTP hw to also timestamp actual ntp packets, or just the 
> 
> onboard tcxo (or whatever the LAN card osc is) as a stable time base?
> 
> 
> 
> Terje
> 




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