Why does the mean path delay vary so much from one sample to the next?

[Jantzen]

Why does the mean path delay vary so much from one sample to the next? Does this suggest network congestion or path asymmetry?

[Jantzen · Accepted solution]

The Precision Time service is provided over Equinix Fabric, which is a "non-PTP aware" network. Jitter conditions can keep changing on the Fabric. Therefore, you might see a mean path delay that varies a lot, compared to when you connect through a non-Fabric network.