Simple Precision Time Protocol (SPTP)
Oleg Obleukhov, Alexander Bulimov, Ahmad Byagowi · 2023
In this manuscript we describe a simplified implementation of the Precision Time Protocol (PTP) which is called Simple PTP (SPTP). Existing unicast profiles come with various extensions such as subscription, signaling messages, flow control and authentication methods. These extensions come at the price of increased complexity and performance penalties. However, in a typical data center application most of the extensions are unnecessary and often impossible to use. We tested the SPTP implementation at scale and showed that it is functional in comparison to mainstream unicast PTP implementations using G8265.1 and G8275.2 profiles.