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Learn to design robust Precision Time Protocol (PTP) infrastructure in this conference talk that explores the integration of Physical Hardware Clocks (PHC), Synchronous Ethernet (SyncE), and clock stability mechanisms. Discover how deploying SyncE extends PTP holdover performance while potentially reducing PTP message rates to decrease network loading in data centers with numerous nodes. Understand how SyncE enhances PTP network accuracy even with multiple Transparent Clocks in the synchronization path, as the SyncE clock provides greater stability and accuracy than local oscillators in TC nodes for improved residence-time measurement. Examine the dual nature of SyncE implementation, including potential risks where signal disruptions can significantly impact PTP performance according to ITU-T G.8273.2 simulations. Analyze how SyncE signal loss creates time error spikes and how subsequent restoration generates additional PTP time error spikes due to frequency offset issues. Gain insights from industry experts on balancing the benefits and challenges of SyncE deployment in critical timing infrastructure for data center environments.
