[LinuxPPS] RIPE NCC interface: needing help

Kiss Gabor (Bitman) kissg at ssg.ki.iif.hu
Fri May 21 17:21:55 CEST 2010


> ...
> refclock_pps: 397 -0.046725 0.020000
> refclock_pps: 398 -0.046608 0.020000
> refclock_pps: 399 -0.046491 0.020000
> refclock_pps: 400 -0.046376 0.020000
> ...
> and decreasing.

I mean the absolute value is decreasing.
I thought this is some error. But it did not stop at zero:
...
refclock_pps: 794 -0.000672 0.020000
refclock_pps: 795 -0.000555 0.020000
refclock_pps: 796 -0.000440 0.020000
refclock_pps: 797 -0.000325 0.020000
refclock_pps: 798 -0.000209 0.020000
refclock_pps: 799 -0.000093 0.020000
refclock_pps: 801 0.000141 0.020000
refclock_pps: 802 0.000255 0.020000
refclock_pps: 803 0.000371 0.020000
refclock_pps: 804 0.000488 0.020000
refclock_pps: 805 0.000604 0.020000
refclock_pps: 806 0.000721 0.020000
...
refclock_pps: 999 0.023111 0.020000
refclock_pps: 1000 0.023228 0.020000
refclock_pps: 1001 0.023344 0.020000
refclock_pps: 1002 0.023459 0.020000
refclock_pps: 1003 0.023575 0.020000
refclock_pps: 1004 0.023692 0.020000
refclock_pps: 1005 0.023809 0.020000
refclock_pps: 1006 0.023924 0.020000

It seems that ntpd does not want to consider PPS(0) as primary
time source:

ntpdc> peers
     remote           local      st poll reach  delay   offset    disp
=======================================================================
*127.127.1.0     127.0.0.1       15   64  377 0.00000  0.000000 0.03044
=193.XXX.XXX.XXX 195.XXX.XXX.XXX  3   64  377 0.00027 32.007220 0.06250
=127.127.22.0    127.0.0.1        0   64  377 0.00000 -0.008855 0.03224
ntpdc> 

Gabor



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