The figure shows a configuration where the primary reference is GPS via a time server and
the secondary reference is a PTP grandmaster. If all external references fail, the time
stamp clock fails over to the local oscillator (FreeRun).
Note: On
NT200A02 and NT100A01 SmartNICs the RJ45 and SMA
ports on the external time synchronization connector are replaced by separate RJ45 and SMA
time synchronization connectors.
ntservice.ini configuration
These ntservice.ini code lines configure the NT SmartNIC (Napatech
SmartNIC PTP Slave) for the setup in Illustration and to permanently run in PTP slave-only mode (clock
class 255).