On Mar 9, 5:00 am, [email protected] (Kiran Shirol) wrote: > If that is the case, I should not be getting any responses ?Or are you > saying NTP gets the responses and then drops them ?
NTP gets the responses, finds the time too far apart on the two sources, has no way too decide which one to believe, and so becomes unsynchronized. It continues to trim the local clock based on the observed frequency drift but will not sync to either server until their times get close enough together to be believable, or one becomes unreachable. Short version: Never configure only two sources. Keep in mind that with only three sources, the unreachability of any one could leave you in the same situation if the remaining two are not sufficiently in sync with each other. For meatier detail see: http://www.eecis.udel.edu/~mills/ntp.html In particular see page 15 of: http://www.eecis.udel.edu/~mills/database/brief/arch/arch.pdf Your situation is akin to having only sources C and D in that diagram available. Since there is no overlap in the confidence intervals, there's no way to know which to believe. In case it's transient (such as temporary unreachability) NTP continues on without a time source, "freewheeling." Cheers, Dave Hart _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
