[ntp:questions] Re: ntpdc 'sysinfo' output inconsistent with ntpq-p output

Tripathi, Anurag Anurag.Tripathi at symbol.com
Mon Jul 24 15:11:11 UTC 2006


Here is ntpq -crv output: 
----
assID=0 status=c624 sync_alarm, sync_ntp, 2 events,
event_peer/strat_chg,
version="ntpd 4.2.0a"?, processor="i686",
system="Linux/2.6.13.4-ws-symbol", leap=11, stratum=16, precision=-20,
rootdelay=0.000, rootdispersion=10.965, peer=17460, refid=INIT,
reftime=00000000.00000000  Thu, Feb  7 2036 11:58:16.000, poll=6,
clock=0xc86f5eb1.a257a786, state=3, offset=9.887, frequency=0.000,
noise=3.628, jitter=2.328, stability=0.000
------

As suggested earlier after 30mins 'ntpdc sysinfo' starts showing the
correct information i.e. 'synched'. 

But isn't 30mins too long a delay for show an information which ntpq
declares within seconds? 

More importantly is there anyway I can reduce/minimize this time lag?
(some keyword or configuration?)

This would be helpful!

Regards,
Anurag

Other requested info:
Ntpq version: "ntpq 4.2.0a at 1.1196-r Thu Mar 16 13:07:10 IST 2006 (1)"
Ntpdc version: "ntpdc 4.2.0a at 1.1196-r Thu Mar 16 13:07:07 IST 2006 (1)"



-----Original Message-----
From: questions-bounces at lists.ntp.isc.org
[mailto:questions-bounces at lists.ntp.isc.org] On Behalf Of Ronan Flood
Sent: Monday, July 24, 2006 5:28 PM
To: questions at lists.ntp.isc.org
Subject: [ntp:questions] Re: ntpdc 'sysinfo' output inconsistent with
ntpq-p output

On Sat, 22 Jul 2006 18:33:57 +0000, Harlan Stenn <stenn at ntp.isc.org>
wrote:

> He's using iburst, so he probably got sync'd during the initial
exchange.
> 
> I do not understand the discrepancy between the ntpq output and the
ntpdc
> sysinfo output, but I really haven't thought about it all that much.

I think what happens is that iburst allows ntpd quickly to sync to
a source, but as noticed it doesn't remember the responses in the
reach status, and doesn't declare itself synced to its clients until
it has received the usual normal responses later.

I think "ntpq -crv" would show similar info to ntpdc sysinfo in this
state.

-- 
                      Ronan Flood <R.Flood at noc.ulcc.ac.uk>
                        working for but not speaking for
             Network Services, University of London Computer Centre
     (which means: don't bother ULCC if I've said something you don't
like)

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