David, David J Taylor wrote: > "JuanFran" <juanfranciscoj...@gmail.com> wrote in message > news:d693971e-be41-4a9b-9926-ed4a04f5b...@j9g2000vbp.googlegroups.com... >> Good mornig. I have a trouble with NTP. I want a refresh my sistem >> clock (client) with a LAN Server each 5 minutes. I don?t know any >> parameter of NTP protocol for this configuration. It?s possible? The >> refresh it done usually, but takes a long time. >> >> I use Windows XP with meinberg software (client and server monitor). >> >> Thank you! >> >> PD: sorry for my poor english! :-) > > Why do you want to do this, Juan? NTP will automatically adjust the > interval between contacts to the server according to its own needs, and > you don't normally need to set this. If you /really/ need to do this, you > could edit the ntp.conf file with notepad to have entries similar to this: > > _____________________________________________ > server <lan-address> maxpoll 8 iburst > > server <internet-address> minpoll 10 > server <internet-address> minpoll 10 > server <internet-address> minpoll 10 > server <internet-address> minpoll 10 > _____________________________________________ > > > This sets the LAN-server to poll not less than once every 256 (2^^8) > seconds, and have backup Internet servers which are polled at not less > than 1024 (2^^10) second intervals.
>From the original question I'd understand that Juan expected the system time to be *set* once after each poll in 5 minute intervals. Of course ntpd doesn't work this way, but if you force the minpoll value higher this lets ntpd synchronize even slower than it normally does. I'd suggest to omit the minpoll keywords and just use one or several entries like server <address> iburst Martin -- Martin Burnicki Meinberg Funkuhren Bad Pyrmont Germany _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
