[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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