News involving Arista Networks

Worst pairwise error between 94 ports on 2 devices was 799 picoseconds

Unaudited results of synchronization within and between Arista's latest ULL devices

Worst-case absolute accuracy  of -0.5 +/5.5 nanoseconds for timestamps from any port on a single device

Mean half-round trip latency through aggregation and layer 1 of just 0.06 microseconds.