Troubleshooting ........................................................................................................................................................................... 44
Safety Considerations ............................................................................................................................................................... 49
7. Managed Clock Engine Overview ........................................................................................................................................ 49
EdgeSync Engine Modes ......................................................................................................................................................... 49
PTP Only mode ........................................................................................................................................................................................................ 50
GNSS Only mode ..................................................................................................................................................................................................... 50
GNSS Primary, PTP Secondary mode ......................................................................................................................................................... 50
PTP Primary, GNSS Secondary Mode .......................................................................................................................................................... 50
GNSS Interface ............................................................................................................................................................................. 50
EdgeSync Clock Sync States .................................................................................................................................................. 51
FREE RUNNING State ........................................................................................................................................................................................... 51
SYNTONIZING State .............................................................................................................................................................................................. 51
SYNCHRONIZING State ....................................................................................................................................................................................... 51
HOLDOVER State .................................................................................................................................................................................................... 51
UNKNOWN/ERROR State ................................................................................................................................................................................. 52
Unicast Operations ..................................................................................................................................................................... 52
Unicast Master .......................................................................................................................................................................................................... 52
Enabling Master Unicast Negotiation ........................................................................................................................................................... 52
Maintaining Master’s Slave Acceptance Filter ......................................................................................................................................... 52
Maintaining Master’s List of Static Slaves .................................................................................................................................................. 53
Unicast BOTH mode of operation ................................................................................................................................................................. 53
Unicast MIXED mode of operation ................................................................................................................................................................ 53
Monitoring Unicast Operations ........................................................................................................................................................................ 54
PTP Clocks ...................................................................................................................................................................................... 54
Gateway and Boundary clock ................................................................................................................................................ 54
The Gateway Clock ................................................................................................................................................................................................ 54
The Boundary Clock .............................................................................................................................................................................................. 55
PTP (Slave) Servo Configuration Parameters .............................................................................................................. 56
Main Time Constant............................................................................................................................................................................................... 56
Startup Time Constant ......................................................................................................................................................................................... 56
Quality Threshold .................................................................................................................................................................................................... 56
Network Type ........................................................................................................................................................................................................... 56
Frequency Out .......................................................................................................................................................................................................... 56
SNTP .................................................................................................................................................................................................. 56
8. Network Architecture, Deployment Considerations ................................................................................................. 57
Network Operator’s or Carrier’s perspective ................................................................................................................ 57
PTP Profiles .................................................................................................................................................................................... 58
IEEE 1588 Default Profile ................................................................................................................................................................................... 59
G.8275.1 Telecom Profile ................................................................................................................................................................................... 59
G.8275.2 Telecom Profile ................................................................................................................................................................................. 60
G.8265.1 Telecom Profile ................................................................................................................................................................................... 61
Power version-1 profile ........................................................................................................................................................................................ 61
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