HP-UX Internet Services Administrator's Guide (February 2007)

----huon.itd.adelaide.edu.AU PING Statistics----
5 packets transmitted, 5 packets received, 0% packet loss round-trip (ms) min/avg/max = 496/497/500
Assume you are located in western United States and you ping this time server. The
ping round-trip times are much larger; around 500 milliseconds. Do not use a time
server at this distance unless you are really need it and understand what 500
milliseconds step changes mean to your users and applications. However, depending
on your location, ping round trip times from this server may be acceptable levels. The
round-trip times from your own location might be much smaller. Also note that the
variation in round-trip times is small.
/usr/sbin/ntpq -p ntp.adelaide.edu.au
Table 4-4 Evaluating Time Sources in Australia
remote refid st t when poll reach delay offset disp
============================================================================= .otto.bf.rmit.ed 130.155.98.1 2 u 229 1024
376 16.34 7.132 7.87 .student.ntu.edu murgon.cs.mu.OZ 2 u 47 128 377 81.34 5.166 5.25 .203.31.96.1
murgon.cs.mu.OZ 2 u 13 256 373 115.74 30.147 38.54 .203.172.21.222 tick.usno.navy. 2 u 43 1024 367 866.64
47.316 65.32 -128.184.1.4 tictoc.tip.CSIR 2 u 99 128 377 13.40 -2.976 5.66 129.127.40.255 0.0.0.0
16 u - 64 0 0.00 0.000 16000.0 *tictoc.tip.CSIR .ATOM. 1 u 17 64 377 26.92 -0.071
1.71 .dishwasher1.mpc gilja.itd.adela 3 u 164 256 376 35.78 4.769 5.66 xclepsydra.dec.c usno.pa-x.dec.c 2 u
1468 1024 376 473.36 -53.841 12.89 murgon.cs.mu.OZ .GPS. 1 u 47d 1024 0 16.19 -398.80 16000.0
-augean.eleceng. murgon.cs.mu.OZ 2 u 12 128 377 1.83 3.270 1.21 .ns.saard.net augean.eleceng. 3 u 27
64 375 0.92 -0.013 1.19 +cuscus.cc.uq.ed tictoc.tip.CSIR 2 u 28 64 376 34.91 1.981 1.27 +staff.cs.usyd.e
tictoc.tip.CSIR 2 u 3 64 375 25.21 0.158 1.97 .wasat.its.deaki tictoc.tip.CSIR 2 u 1 128 377 15.37
-2.492 1.69 .luna.its.deakin tictoc.tip.CSIR 2 u 123 128 172 16.11 -0.350 501.11 -earth.its.deaki tictoc.tip.CSIR
2 u 28 128 377 12.19 -3.582 2.15 phobos.its.deak tictoc.tip.CSIR 2 u 169 128 56 12.42 -2.325 1000.76
.sol.ccs.deakin. tictoc.tip.CSIR 2 u 136 512 265 13.89 -1.083 251.83 +argos.eleceng.a tictoc.tip.CSIR 2 u 23
64 377 1.82 0.197 1.21 .mercury.its.dea tictoc.tip.CSIR 2 u 123 256 377 16.91 -2.584 2.94 .orion.atnf.CSIR
murgon.cs.mu.OZ 2 u 111 512 376 53.51 -0.712 5.92 +smig2a.City.Uni tictoc.tip.CSIR 2 u 49 64 376 7.14
0.268 1.07 +svdpw.City.UniS murgon.cs.mu.OZ 2 u 26 64 376 4.90 -0.833 1.88 .news.nsw.CSIRO. murgon.cs.mu.OZ
2 u 54 1024 377 135.85 43.108 62.45 +210.8.40.225 murgon.cs.mu.OZ 2 u 2 64 377 50.83 1.811 14.45
.203.103.99.66 tictoc.tip.CSIR 2 u 342 1024 376 82.82 -14.124 36.21 xpellew.ntu.edu. tictoc.tip.CSIR 2 u 408
1024 377 404.33 -159.77 161.36 xxox.lifelike.co tick.usno.navy. 2 u 494 1024 377 504.56 -59.200 5.60
This time server in Australia has one excellent stratum-1 source (tictoc.tip.CSIR)
which it is currently synchronized to, one stratum-1 source which has not responded
in a while (reach=0), and a wide selection of stratum-2 sources (desirable candidates
marked with +). Some of the stratum-2 sources are less attractive due to high delay,
offset, and dispersion numbers. They are marked x in column one.
This time server in Australia might be a good choice for you if you are reasonably
nearby, but it is probably not a good choice for time clients in North America.
When the time server in Silicon Valley is configured to use
sirius.ctr.columbia.edu and gpo.adelaide.edu as time sources, the output
from ntpq -p looks like this (about 10 minutes after daemon startup):
Getting Started with NTP 55