In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Folkert van Heusden) wrote:

>  GENERIC(0)      .DCFa.           0 l   23   64    3    0.000  -17.386  
> 26.356  <- dcf77 receiver

> +auth1.xs4all.nl 131.188.3.220    2 u  973 1024  377    8.421    1.179   
> 0.024  <- ntp server of my ISP

The maximum theoretical contribution from ADSL here is half of 8.421ms, and
in practice will be rather less.  I'd say that assymmetric loading of the
line causes much more problems than assymmetric speeds.  In fact the natural
assymmetric loading tends to act in the opposite direction from the speed
here.  

In this case, I would say that it was much more likely that the DCF clock
is reading wrongly, probably because it is not compensating for the group
delays/rise time in its filters, particularly the post detection filter.

_______________________________________________
questions mailing list
[email protected]
https://lists.ntp.isc.org/mailman/listinfo/questions

Reply via email to