Re: [Ntp] Is one refid enough

On Thu, Sep 5, 2019, 4:08 AM Heiko Gerstung <heiko.gerstung@meinberg.de>
wrote:

>
> > On 05.09.19, 13:04 "ntp im Auftrag von Miroslav Lichvar" <
> ntp-bounces@ietf.org
> >> if A Is stratum 1 and A->B->C->D then B would never choose D
> >> because it is stratum 4 and B itself is stratum 2.
> >
> > That's how it worked in NTPv3 and it limited the selection
> > significantly. In NTPv4 clients are allowed to synchronize to
> > sources
> > having the same or higher stratum. It has some weight in the
> > source selection (it is included in the root distance), but it
> > doesn't
> > prevent the selection.
>
> Thanks for the clarification, in this case the chain of InstanceIDs would
> also be useful to prevent loops like A-B-C-D-B ..
>

If you have no external sources what is the right answer? If you do have
external sources then a loop like this won't form.

> Best Regards,
>     Heiko
>
>
>
> >
> > --
> > Miroslav Lichvar
> >
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