I'm writing my own little query script to decode NTP packets and I've come across some conflicting information in the RFCs and other white papers that I'm hoping an authoritative source would know the answer to.
Specifically for the 'Poll Interval' and 'Root Dispersion' fields in the NTP packet, some documents say they are unsigned variables, others say they are signed... I would think both would be unsigned, however I believe Chrony can set negative poll intervals in its configuration for sub-second querying, but I don't know if it tries to send that negative value in its NTP packets. The largest poll interval allowed is 17, so even if it was decoded as a signed field it would (should) never have an issue. I can't think of a reason for Root Dispersion to be negative... 0 would be the best and I think max is clamped to 16? Thoughts? _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
