[ntp:questions] NTP, Mac OS X & Cisco 837 - some stats:
viz
viz at REMOVEBLOCK.pacific.net.au
Wed Apr 20 10:24:12 UTC 2005
Some interesting stats come up with ntpq -p:
ntpq -p
remote refid st t when poll reach delay offset
jitter
============================================================================
==
+bm1.asia.apple. time1.euro.appl 2 u 118 128 377 127.025 -227.69
401.635
+mel001.pacific. murgon.cs.mu.oz 2 u 101 128 377 36.358 -219.35
435.265
+marvin.ci.com.a .PPS. 1 u 63 128 377 36.375 -246.40
40.575
*murgon.cs.mu.oz .GPS. 1 u 114 128 377 32.412 -231.68
410.731
+ntp1.cs.mu.oz.a .GPS. 1 u 114 128 377 42.499 -228.29
418.720
-bob.greenwood.w ntp.hobart.nml. 2 u 124 128 377 206.531 -169.20
474.324
-ntp1.tpgi.com.a murgon.cs.mu.oz 2 u 120 128 377 21.104 -285.12
415.440
+levy.catalyst.n gen1.ihug.co.nz 3 u 120 128 377 62.818 -226.84
414.083
ntpq -p
remote refid st t when poll reach delay offset
jitter
============================================================================
==
-bm1.asia.apple. time2.euro.appl 2 u 92m 256 377 129.815 -8.807
8.620
-mel001.pacific. murgon.cs.mu.oz 2 u 92m 256 377 38.591 0.902
0.220
-marvin.ci.com.a .PPS. 1 u 93m 256 377 87.344 -41.230
32.827
*murgon.cs.mu.oz .GPS. 1 u 92m 256 377 33.880 -13.720
2.081
+ntp1.cs.mu.oz.a .GPS. 1 u 92m 256 377 34.493 -13.122
4.711
+bob.greenwood.w ntp.hobart.nml. 2 u 92m 256 377 87.686 -13.215
1.836
-ntp1.tpgi.com.a murgon.cs.mu.oz 2 u 92m 256 367 26.237 -68.400
1.196
+levy.catalyst.n gen3.ihug.co.nz 3 u 93m 256 377 57.825 -14.396
3.948
ntpq -p
remote refid st t when poll reach delay offset
jitter
============================================================================
==
-bm1.asia.apple. time1.euro.appl 2 u 107m 128 36 129.001 -18.558
4.063
+mel001.pacific. murgon.cs.mu.oz 2 u 105m 128 37 43.009 -24.018
10.079
-marvin.ci.com.a .PPS. 1 u 104m 128 37 63.324 -41.983
161.509
+murgon.cs.mu.oz .GPS. 1 u 106m 128 37 35.328 -24.333
4.102
*ntp1.cs.mu.oz.a .GPS. 1 u 106m 128 37 44.048 -21.404
0.326
-bob.greenwood.w ntp.hobart.nml. 2 u 105m 128 37 95.627 -31.444
12.165
xntp1.tpgi.com.a ntp1.tip.csiro. 2 u 104m 128 37 23.700 -81.640
10.341
-levy.catalyst.n msltime.irl.cri 2 u 105m 128 37 56.696 -31.656
10.730
The jitter numbers have a huge range - any ideas why?
/viz
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