This has been on my mind for a while and it's also been a while since I thought hard about it or looked at the code.
I think one of the things we need is for a PPS source to have a "health status" associated with it, as the original PPS sources were pretty much stand-alone devices that could be adjusted by a process outside of NTP to fine-tune the frequency. Now, we have some GPS devices (for example) that will emit PPS signals even when the device is not fully sync'd, and we have some PPS devices (Rb clocks) that may emit PPS but expect you to look at device status via an RS-232 connection to see how healthy or accurate that PPS signal is. I could be wrong, but I think there is value in understanding the "context" in which a wide variety of PPS sources operate so we can design a robust interface for them. Should we create a topic on the support wiki for this discussion? H _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions