[ntp:questions] Re: 4.2.1-RC1 on FreeBSD 4.11 doesn't seem to discipline the local clock

Joshua Coombs jcoombs at gwi.net
Wed Mar 8 14:22:03 UTC 2006


"Harlan Stenn" <stenn at ntp.isc.org> wrote in message 
news:ywn964mppfu2.fsf at ntp1.isc.org...
> What does 'ntpq -p' show on that host?
>
> H

I've just reset the time via ntpdate -b, and resumed using 4.2.1-RC1

     remote           refid      st t when poll reach   delay   offset 
jitter
==============================================================================
 ntsrv04.jensenr .CDMA.           1 u   39   64    3   17.045    0.005 
0.479
 tick.jrc.us     toshi.keneli.or  2 u   37   64    3   18.125   -2.217 
0.418
 tock.jrc.us     NAVOBS1.MIT.EDU  2 u   35   64    3   16.927   -0.486 
0.388
 node-217.machin .USNO.           1 u   34   64    3   25.576    0.017 
31.221
 bonehed.lcs.mit .CDMA.           1 u   32   64    3   17.887   -0.891 
0.290
 toshi.keneli.or .GPS.            1 u   33   64    3   23.906   -0.225 
0.326
 clock.isc.org   .GPSi.           1 u   30   64    3   83.531    0.071 
0.665
 clepsydra.dec.c .GPS.            1 u   31   64    3   82.202   -0.983 
0.359
 c-66-229-200-20 .GPS.            1 u   31   64    3   88.131   -2.912 
0.550
 timekeeper.isi. .GPS.            1 u   28   64    3  110.157    9.323 
14.243
 clock.xmission. .GPS.            1 u   27   64    3   72.805   -4.671 
0.648
 rassilon.gwi    bonehed.lcs.mit  2 u   62  256    2    5.926    0.391 
0.015
 omega.gwi       toshi.keneli.or  2 u   15 1024    3    6.768   -0.559 
0.155
 salyavin.gwi    .INIT.          16 u    -   64    0    0.000    0.000 
0.000
 azmael.gwi      ntsrv04.jensenr  2 u   40 1024    2    1.298   -0.193 
0.015
 LOCAL(1)        .LOCL.          10 l   24   64    3    0.000    0.000 
0.015
*ACTS_NIST(1)    .NIST.           0 l   23 2048    1    0.000   -5.629 
3.916

Rassilon and Azmael are both identical 4501s, matching installs of 
FreeBSD, running the base included NTPd (4.1.0-a).  Omega is the 4th 
peered server in this group, a Cisco 4500M running 12.3 IOS.  I use 
them as my comparison clocks to see if changes on Salyavin (the 4501 
I'm testing 4.2.1-RC1 on) cause problems.

I also forgot to create a dir for my loopstats, so I don't have prior 
ones to reference.  I've corrected that and am gathering stats now if 
those will help.

One other change in behavior I've noticed, after about 3 rounds of 
polling at 64 seconds, ntpd jumps right up to 1024 seconds for a 
polling interval.  I personally like the idea that I'm less abusive to 
remote servers, but just want to make sure it's proper behavior and 
not something that should be reported as an issue?

Joshua Coombs 




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