Chuck wrote: >> On Thursday 25 October 2007, Dennis Hilberg, Jr. wrote: >> Correct me if I'm wrong, but I thought I remember reading somewhere that >> ntpd will only make use of 10 servers max at one time, regardless of how >> many are specified in the ntp.conf. >> >> I have five in each of my ntp.conf files. >> > they all show up and it polls them all and over time it has chosen each of > them for some period. i suppose i really should cut it back to 6 or 7....
I was sort of correct on this issue, but it's a bit more complicated than the way I described it. I read through the RFC a bit, and read the 'ntpq' man page where it describes the tally codes. Ntpd does make use of up to 10 servers, but only after they've been sorted by synchronization distance, which is the root dispersion + 1/2 the delay. Ntpd will poll all servers listed in the ntp.conf, even if you have 50 (!). Having 10 or 12 servers in your ntp.conf really doesn't hurt anything, except maybe bandwidth, but it's so minimal anyway that it's not worth worrying about. -- Dennis Hilberg, Jr. [EMAIL PROTECTED] NTP Server Information: http://saturn.dennishilberg.com/ntp.php _______________________________________________ timekeepers mailing list [email protected] https://fortytwo.ch/mailman/cgi-bin/listinfo/timekeepers
