[ntp:questions] Strange behaviour
Alain
alainm at pobox.com
Tue Mar 15 17:05:43 UTC 2005
John Pettitt escreveu:
>>
> Look for (reach == 0 for *all* non-local clocks) and (LOCAL clock
> reach == 377)
>
> this will detect that case when the system can't see the world but has
> been up long enough to have tried (the LOCAL == 377 test)
I have started some tests in that efect (to test ntpd sanity) and got
very strange results. I restarted the internet connection in order to
change my IP (something that can happen unexpectedly) ando now "ntpq -p"
is showing duplicate servers!!!
This was little after changing my IP:
[root at servnet1 root]# ntpq -p
remote refid st t when poll reach delay offset
jitter
==============================================================================
+ntp.pucpr.br tick.ucla.edu 2 u 289 512 377 242.036 0.750
392.381
-paulo.hiway.com Tick.UH.EDU 2 u 285 512 377 230.962 -38.051
37.589
LOCAL(0) LOCAL(0) 10 l 40 64 377 0.000 0.000
0.004
-200.137.65.100 ntp1.pop-df.rnp 2 u 469 512 377 394.278 113.750
7.127
titan.cais.rnp. 217.69.95.255 2 u 475 512 377 1497.11 665.964
615.687
-cherokee.pop-pr ntp1.pop-df.rnp 2 u 279 512 377 176.529 -38.452
22.191
xmailhost.pads.u santuario.pads. 2 u 591 512 366 260.148 -245.71
686.320
*cs.columbia.edu clepsydra.dec.c 2 u 473 512 377 410.720 -2.734
10.116
+hydrogen.cert.u tick.ucla.edu 2 u 466 512 377 437.483 -5.566
28.325
-200.137.65.100 ntp1.pop-df.rnp 2 - 21 64 1 294.214 110.186
18.106
titan.cais.rnp. 152.53.71.255 2 - 38 64 1 238.410 84.797
51.639
-cherokee.pop-pr ntp1.pop-df.rnp 2 - 34 64 1 193.572 10.393
70.913
xns.pads.ufrj.br ns2.pads.ufrj.b 2 - 26 64 1 251.871 -215.37
22.417
-cs.columbia.edu clepsydra.dec.c 2 - 35 64 1 348.125 21.730
21.164
-hydrogen.cert.u tick.ucla.edu 2 - 30 64 1 389.365 24.507
24.961
Is this expected? What is happening?
thanks,
Alain
PS What is the column marked "t"? Where can I find a complete
explanation of this listing?
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