Synchronizing the capture engine clock
If PTP support is enabled on the capture adapter in a PTP network environment, to prevent inaccurate timestamps from being reported, ensure that the Capture Engine’s clock is synchronized with the PTP or NTP server (if NTP’s time source is pointed at the PTP grandmaster clock).
To synchronize the Capture Engine clock, one of the following configurations is needed:
• Enable ‘TimeSyncOsTimeReference’ in /etc/omni/ntoverrides.ini—This option synchronizes the OS time to a Napatech adapter clock, which in turn should be configured to point to the PTP grandmaster clock as its time reference
• If NTP server references PTP as its time source, run ‘ntpdate’ to synchronize the OS time with the NTP server, and then start up the NTP daemon