[ntp:questions] Re: New to NTPD

Ted Gervais ve1drg at av.eastlink.ca
Wed May 10 07:40:25 UTC 2006


On Tue, 9 May 2006, Richard B. Gilbert wrote:

>>      remote           refid      st t when poll reach   delay   offset 
>> jitter
>> ==============================================================================
>>  mircx.com       129.6.15.29      2 u   23  128    7   70.362   27.808 
>> 7.917
>>  neate.neateroll 199.212.17.15    3 u   24  128    7   80.833   14.010 
>> 6.666
>>  d221-85-115.com 132.246.168.9    2 u   17  128    7   41.316   25.977 
>> 2.463
>> ----------------
>> 
> <snip>
>
> Your reach field shows that only the three most recent polls were 
> successful!!!!  This is not good.  Did you disconnect the network cable or 
> have a network problem?  That is probably why none of the three servers has 
> been selected.

Yes.  Somehow my system rebooted??  I don't know why. But it came back up 
and that was the result.

> Can you find a fourth server?  Four are the minimum required to protect 
> against one falseticker.  Five protect against two falsetickers and seven 
> against three.   With only three servers, the failure of one leaves you with 
> only two.

OK on adding another server.  Iwill do that right now. And here is what 
things look like now that it has been running for nearly a full day:
---------
      remote           refid      st t when poll reach   delay   offset 
jitter
==============================================================================
+mircx.com    207.126.98.204   2 u  288 1024  375   71.586  -100.04 45.062
+neate.neateroll 199.212.17.20  3 u  320 1024  377   76.978  -21.913 5.698
*d221-85-115.com 132.246.168.2  2 u  314 1024  377   42.064   -6.444 3.894



>  It is written that a man with two clocks can never be certain what 
> time it is!!
>
> You need to let that system run for a while, perhaps for as long as a full 
> day to reach a stable state with good synchronization.
>
Yes.  And of course I plan to run it forever without any breaks as I have 
this on my server which runs all the  time anyway..

---
Ted Gervais
Coldbrook, Nova Scotia
Canada. (ve1drg)




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