[ntp:questions] Re: Philosophical question about strata

Wolfgang S. Rupprecht wolfgang+gnus20051014T135000 at dailyplanet.dontspam.wsrcc.com
Fri Oct 14 20:52:37 UTC 2005


brad at stop.mail-abuse.org (Brad Knowles) writes:
> At 4:58 PM +0000 2005-10-14, Wolfgang S. Rupprecht wrote:
>
>>  I was thinking more of the situation where the GPS signal wasn't
>>  totally unusable but where the gps knows that it has a solution with
>>  huge error bars.  In a situation like this, using the time from the
>>  GPS would still be better than nothing, but just about any other
>>  stratum 1,2,3 would be preferable.
>
> 	With NTP, Stratum is a binary thing.  You don't do a
> calculation to set yourself to have a worse stratum based on the error
> bars of your SYSPEER.
>
>
> 	By definition, your stratum is that of your SYSPEER, plus
> one. Period.  That's it.  There is no other way.
>
> 	If your SYSPEER is a Stratum 0 refclock, then however "good"
> or "bad" that refclock might be, your Stratum is 1.  Period.
>
> 	If your SYSPEER is a Stratum 2 server that has selected a
> particular Stratum 1 server as its SYSPEER, then your Stratum is
> 3. Period.

So tell me about the local refclock being stratum 10.  Why not set it
to stratum-0 like your explanation implies?

-wolfgang




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