Arista Precision Time Protocol
Until now, datacenter class switches have not provided a hardware based PTP implementation. This has limited the scale and precision of PTP implementations by requiring dedicated PTP hardware at every point, essentially minimizing the benefit of a common infrastructure for both data forwarding and time synchronizations. This document will review how the Arista 7150 datacenter switch enables high precision time distribution directly in the data path, while improving the scale, precision, and cost of a precise time infrastructure.