[ntp:questions] xGPS_NMEA / xPPS
David Lord
snews at lordynet.org
Mon Feb 27 16:55:08 UTC 2012
Alby VA wrote:
>
> I've watched as my NTP session has gone between normal and falsetick.
> Anybody want to toss out an idea of why this is happening and the
> solution to make it stop?
>
>
> remote refid st t when poll reach delay
> offset jitter
> ==============================================================================
> -ntp.alaska.edu .GPS. 1 u 69 128 7 127.532
> 0.581 19.471
> +utcnist2.colora .ACTS. 1 u 69 128 7 61.424
> 15.184 16.376
> *time-a.nist.gov .ACTS. 1 u 70 128 7 16.060
> 26.839 25.833
> +tick.usask.ca .GPS. 1 u 75 128 7 106.332
> 20.798 24.112
> -cronos.cenam.mx .GPS. 1 u 68 128 7 81.165
> 1.985 11.542
> xPPS(0) .PPS. 0 l 13 16 377 0.000
> 28.105 3.330
> xGPS_NMEA(0) .GPSb. 0 l 12 16 377 0.000
> -11.920 5.476
>
I would noeselect these as first step: ntp.alaska, utcnist2,
tick.usask, and cronos.cenam. To me you have too many
sources with both long delay and high stratum to ever get
your configuration working.
David
>
>
>
>
> remote refid st t when poll reach delay
> offset jitter
> ==============================================================================
> +ntp.alaska.edu .GPS. 1 u 75 128 7 127.532
> 0.581 19.471
> -utcnist2.colora .ACTS. 1 u 75 128 7 61.424
> 15.184 16.376
> -time-a.nist.gov .ACTS. 1 u 76 128 7 16.060
> 26.839 25.833
> -tick.usask.ca .GPS. 1 u 81 128 7 106.332
> 20.798 24.112
> +cronos.cenam.mx .GPS. 1 u 74 128 7 81.165
> 1.985 11.542
> oPPS(0) .PPS. 0 l 3 16 377 0.000
> 28.630 3.022
> *GPS_NMEA(0) .GPSb. 0 l 2 16 377 0.000
> -25.386 12.305
>
>
>
> ** Ignore the low reach. I just restarted ntpd.
>
>
More information about the questions
mailing list