[ntp:questions] Re: GPS Truetime NTP server and offset/jitter peak

Ralf Gross usenet at ralfgross.de
Thu Oct 20 07:17:43 UTC 2005


mike schrieb:

> Ralf Gross wrote:
>> Martin Burnicki:
>> 
>>>Let's see the capture output first. Then we'll see whether we must have a
>>>look at the driver.
>> 
>> Here's the result.
>> 
> < snip >
>> 292:23:59:59 
>> 292:23:59:60  <---- 
> 
> my watch goes 59, 00, 01 - maybe the server is on the blink

Yes I just overlooked that...

>> 293:00:00:00 
>> 293:00:00:01 
>> 293:00:00:02 
> 
>> 293:00:00:19 
>> 293:00:00:20  
>> 293:00:00:21 <----
> 
>    I noticed in the original post, that your reach is not 377
>    on he first sample. Are there many samples missed. Unfortunately
>    in the test, you did not include the system clock time in the
>    output. I am wondering if this 'missing' entry is not one, but
>    just the server getting it's act back together.

This is not from last night, it's from the night before.

02:00:08
      remote   refid      st t when poll reach   delay   offset  jitter
=======================================================================
*TRUETIME(0)   .TRUE.      0 l   15   16  377    0.000    0.503   0.670
 LOCAL(0)      LOCAL(0)   13 l   62   64  377    0.000    0.000   0.001
<snipped stratum 3 server>

02:00:09
      remote   refid      st t when poll reach   delay   offset  jitter
=======================================================================
*TRUETIME(0)   .TRUE.     0 l   16   16  377    0.000    0.503   0.670
 LOCAL(0)      LOCAL(0)  13 l    -   64  377    0.000    0.000   0.001
<snipped stratum 3 server>

02:00:10
      remote   refid      st t when poll reach   delay   offset  jitter
=======================================================================
*TRUETIME(0)   .TRUE      0 l   17   16  376    0.000    0.503   0.670
 LOCAL(0)      LOCA      13 l    1   64  377    0.000    0.000   0.001
<snipped stratum 3 server>

02:00:11
      remote   refid      st t when poll reach   delay   offset  jitter
=======================================================================
xTRUETIME(0)   .TRUE.      0 l    -   16  377    0.000  -1000.1 1000.15
 LOCAL(0)      LOCAL(0)   13 l    2   64  377    0.000    0.000   0.001
<snipped stratum 3 server>

02:00:13
      remote   refid      st t when poll reach   delay   offset  jitter
=======================================================================
xTRUETIME(0)   .TRUE.      0 l    2   16  377    0.000  -1000.1 1000.15
 LOCAL(0)      LOCAL(0)   13 l    4   64  377    0.000    0.000   0.001
<snipped stratum 3 server>

Ralf




More information about the questions mailing list