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The purpose of this document is to provide network and system administrators with a macro-guide to a high-precision PTP (Precision Time Protocol) network architecture. We will present a hierarchical, scalable PTP synchronization model that consists of three core levels of devices: the PTP Master Clock (Grandmaster), the PTP Boundary Clock, and the PTP Slave Clock.

rms 16
Indicates the "average synchronization error" in nanoseconds (ns).
This value reflects the overall level of stability of the time offset between the device and the master clock. rms 16 means that the average deviation is only 16ns, which is already very small and falls within the range of high-precision synchronization. The smaller the value, the more accurate the synchronization.