Dennis Hilberg, Jr. wrote: > Hi, > > I have a stratum one server running ntpd [EMAIL PROTECTED] with a Garmin > GPS 18 LVC as a refclock. I use the shmpps driver from > http://time.qnan.org/ . Since this driver only provides the PPS signal, > I need to have a few other servers defined in my ntp.conf so that my > ntpd knows what time it is. > > Here's my concern: the poll interval on those servers is always stuck at > the default minpoll (64sec), even though I have not specified so. I > would rather not poll those servers at such a rapid rate, but ntpd seems > to be doing this on its own, as far as I know.
I think this is a known problem/bug/feature: The prefer peer responsible for naming the PPS ticks is clamped at minpoll. In fact, if you adjust minpoll to 4 (i.e. 16 seconds), which can be a good idea for a GPS-class PPS signal, then you'll also lock your prefer peer at the same rate. One possible workaround is to set your prefer peer to another local/personal server which uses the Internet to get its timestamps. Terje -- - <[EMAIL PROTECTED]> "almost all programming can be viewed as an exercise in caching" _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
