Dave, one-time mode may help Eric?
Pedro Em Qua 19 Out 2005 18:52, David L. Mills escreveu: > Eric, > > As confirmed by experiment, having each client average all the others is > not a good idea. The ensemble tends to do a random walk and display very > poor statility. Better to pick one of them and let it time the rest. > However, folks have tended to extend this idea to provide a multiple > backup capability. This is a bad idea, as evil timing loops can form > that take a long time to count to infinity. > > There is a new wrinkle designed for isolated configurations with > multiple backup requirements. It is called orphan mode and works best > with broadcast/multicast networks or networks with multiple > symmetric-mode networks. The networks self-organize, elect a leader and > pecking order depending on the particular failure topology. It's been > tested here in the ntp-dev version, but should still be considered > experimental. See the documentation on the authentication options and > miscellaneous commands pages in the online documentation. > > Dave > > Eric wrote: > > On Tue, 18 Oct 2005 14:19:11 GMT, [EMAIL PROTECTED] (Marco Molteni) > > > > wrote for the entire planet to see: > >>Say I don't know if a clock is better than the other, so by configuring > >>B and C to use A as server I risk to have a not so good time if A is > >>unreliable. > >> > >>Can I configure A,B,C to peer with each other in a meshed fashion, so > >>to have each clock influenced by all the others? > > > > The general feeling on this ng is that this is not a good application > > for NTP. > > > > I would go further, and say it is a poor design using any type of > > software. Sure, you may get some weird approximation of the average > > clock errors around your network, but it will still drift, by an > > unknown amount. > > > > Three PCs, all of which don't know the time, can't really help each > > other find it. > > > > - Eric > > _______________________________________________ > questions mailing list > [email protected] > https://lists.ntp.isc.org/mailman/listinfo/questions -- Atenciosamente, Regards, Pedro Rodrigues Torres Júnior RNP / PoP-PR Tel: 55 41 3361-3343 _______________________________________________ questions mailing list [email protected] https://lists.ntp.isc.org/mailman/listinfo/questions
