Time Distribution Protocols
NTP, NTS, PTP, White Rabbit and a bare PPS, compared on the two things that decide which you need: how close they can get, and whether they account for the length of the wire.
Tagged “PTP”
3 pages · all tags
Topics In Timekeeping
Matching acquisition and distribution
Two distinct problems that both have to be solved. Their errors sum, so the accurate one is paying for accuracy the other cannot deliver.
Should I prioritize clock agreement or accuracy to UTC?
Usually a false choice. The two are not opposed, most improvements buy both, and the real tradeoff only appears at the very last nanoseconds — where it is a genuine engineering preference rather than a confession of low standards.