Ask Bjørn Hansen wrote:
>
> On Feb 7, 2006, at 1:25 PM, John Pettitt wrote:
>
>> I'm seeing similar spikes for my servers - one of which is stratum 1
>> varies by +/- 40us typically.   I put it down to the monitoring server
>> either having a really bad time source or an overloaded net connection.
>> - Where is the monitoring server and how is it connected?
>
> Los Angeles, connected via internap.
>
> Any spikes at least up to ~100ms can easily be attributed to network
> trouble.  Don't read too much into the offset graphs on lower numbers.
>
> If/when we want to measure the offset more accurately from the
> monitoring station I'll setup several of them and have them use ntpd
> rather than the simplistic sntp client.
>
>
>  - ask
>
> --http://www.askbjoernhansen.com/
>
>
>
Hmmm - I'd be interested in doing an experiment on that - if you are
willing to let me have a the list of US servers I'll set up a box with
all the servers in the ntpd config as minpoll 10 noselect and see how it
looks.

John
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