[ntp:questions] How to determin hardware latency for PPS offset given simple tools.
Paul G
bodosom at gmail.com
Mon May 27 03:52:44 UTC 2013
On Saturday, May 25, 2013 3:05:13 AM UTC-4, David Taylor wrote:
> What happens with the fudge set to zero?
> Please show the table for each machine.
Showing 192.168.0.2 and .244 with time1 = 0 as compared to the first post where
time1 was ~100 microsec.
These two have gigabit interfaces. 0.2 is driven by a Garmin 18x and 0.244 is
driven by a Firefly (I).
0.2
remote refid st t when poll reach delay offset jitter
==============================================================================
o127.127.22.0 .PPS. 0 l 1 8 377 0.000 -0.001 0.002
+192.168.0.244 .PPS. 1 u - 8 377 0.075 -0.128 0.001
*192.168.0.210 .GPS. 1 u 7 8 377 0.519 0.117 0.098
0.244
remote refid st t when poll reach delay offset jitter
==============================================================================
o127.127.22.0 .PPS. 0 l 5 8 377 0.000 0.000 0.002
+192.168.0.2 .PPS. 1 u 4 8 377 0.079 0.132 0.003
+192.168.0.210 .GPS. 1 u 4 8 377 0.547 0.253 0.135
*192.168.0.192 .PPS. 1 u 3 8 377 0.475 0.262 0.036
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