[ntp:questions] Why does ntp keep changing my conf file?

Daniel Havey dhavey at yahoo.com
Wed Sep 22 20:57:41 UTC 2010


I guess I can't show the graph, since I cannot reach my UCSB webserver from here.

[dhavey at node1 ~/MANET]$ ntpq -npc rv
     remote           refid      st t when poll reach   delay   offset  jitter
==============================================================================
*192.168.1.10    130.221.24.100   2 u   23  256  377    0.168   17.224   1.515
assID=0 status=0644 leap_none, sync_ntp, 4 events, event_peer/strat_chg,
version="ntpd 4.2.2p1 at 1.1570-o Sat Dec 19 00:58:16 UTC 2009 (1)",
processor="i686", system="Linux/2.6.18-164.11.1.el5", leap=00,
stratum=3, precision=-20, rootdelay=4.211, rootdispersion=84.326,
peer=53715, refid=192.168.1.10,
reftime=d044e85b.b36d9436  Wed, Sep 22 2010 13:40:59.700, poll=8,
clock=d044eb73.1a72e7e7  Wed, Sep 22 2010 13:54:11.103, state=4,
offset=17.224, frequency=135.852, jitter=1.638, noise=7.224,
stability=6.210, tai=0

It's going the wrong way.  It should be reducing the offset and it is making it worse.



--- On Wed, 9/22/10, Chuck Swiger <cswiger at mac.com> wrote:

> From: Chuck Swiger <cswiger at mac.com>
> Subject: Re: [ntp:questions] Why does ntp keep changing my conf file?
> To: dhavey at yahoo.com
> Cc: questions at lists.ntp.org
> Date: Wednesday, September 22, 2010, 1:36 PM
> On Sep 22, 2010, at 1:18 PM, Daniel
> Havey wrote:
> > The bloody thing made it worse!  Look at the
> graph.  It was doing just fine at 0.002147 second
> offset, then I started ntpd and look what it does. 
> This is definitely not very good for a testbed.
> 
> What graph?  You'll need to mail out a link, since
> most mailing lists eat attachments (they've got to be fed
> somehow, I guess)....
> 
> Also, ntpq output like the following is helpful for
> debugging issues:
> 
> % ntpq -npc rv
>      remote       
>    refid      st t when poll
> reach   delay   offset 
> jitter
> ==============================================================================
> -66.250.45.2     192.5.41.40 
>     2 u   22  512 
> 377   26.389   
> 7.667   0.498
> *18.26.4.105     .GPS.   
>         1 u   54 
> 512 
> 377   24.070   -0.925   0.458
> +128.59.59.177   128.59.39.48 
>    2 u   42  512 
> 377   26.898   
> 0.408   0.033
> +17.254.0.27     17.72.133.54 
>    2 u   48  512 
> 377   54.681   
> 0.587   0.106
>  24.103.228.242  18.26.4.105      2
> u   37  512 
> 377   33.338   -2.185   0.726
> associd=0 status=0644 leap_none, sync_ntp, 4 events,
> freq_mode,
> version="ntpd 4.2.4p5-a Mon Sep 20 14:30:32 EDT 2010 (1)",
> processor="i386", system="FreeBSD/6.4-STABLE", leap=00,
> stratum=2,
> precision=-19, rootdelay=24.070, rootdispersion=26.037,
> peer=43124,
> refid=18.26.4.105,
> reftime=d044e485.9adbf554  Wed, Sep 22 2010
> 16:24:37.604, poll=9,
> clock=d044e6bd.18405690  Wed, Sep 22 2010
> 16:34:05.094, state=4,
> offset=-0.239, frequency=19.470, jitter=1.043,
> noise=0.380,
> stability=0.019, tai=0
> 
> Regards,
> -- 
> -Chuck
> 
> 


      



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