[ntp:questions] Spurious positive leap second announcement?

David J Taylor david-taylor at blueyonder.co.not-this-bit.nor-this-part.uk
Wed Mar 7 11:09:40 UTC 2007


Martin Burnicki wrote:
> Hi all,
>
> David J Taylor wrote:
>> Noted this in my even log:
>>
>> Detected positive leap second announcement for 2007-04-01 00:00:00
>> UTC
[]
> So if none of the upstream servers sends the announcement anymore,
> the local ntpd just seems to "forget" the announcement it has seen
> before. However, I'll have a closer look at this.
[]
> So end of March is also a candidate for faulty announcements, even
> though there's currently no pending leap second announcement.
>
>
> Martin

Martin,

Many thanks for your analysis.  If NTP is capable of forgetting the false 
announcement, that's great.  However, I would like to know how to confirm 
this on the particular system.  Can anyone explain the significance of the 
"leap_none" in the output below?

C:\>ntpq -c rv
assID=0 status=0664 leap_none, sync_ntp, 6 events, event_peer/strat_chg,
version="ntpd 4.2.0b at 1.1436-mbg-o Dec 22 12:23:10 (UTC+01:00) 2005  (1)",
processor="unknown", system="WINDOWS/NT", leap=00, stratum=2,
precision=-23, rootdelay=1.395, rootdispersion=50.905, peer=53081,
refid=192.168.0.3,
reftime=c9991306.8c1ee90a  Wed, Mar  7 2007 10:31:34.547, poll=10,
clock=c99919a7.de0c922d  Wed, Mar  7 2007 10:59:51.867, state=4,
offset=7.139, frequency=11.194, jitter=0.583, noise=1.504,
stability=0.046, tai=0

C:\>

Does "leap_none" tell me anything about the way this client will behave? 
I've tried searching but haven't found a simple, plain English 
explanation!

Thanks,
David






More information about the questions mailing list