test ptp4l - SERP Analysis

https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/system_administrators_guide/ch-configuring_ptp_using_ptp4l

https://manpages.debian.org/testing/linuxptp/ptp4l.8.en.html

https://docs.nvidia.com/networking/display/nvidia5ttechnologyusermanualv10/verifying%2Bptp4l%2Bsynchronization%2Baccuracy

https://tsn.readthedocs.io/timesync.html

https://docs.telosalliance.com/docs/testing-ptp-clock-on-an-ubuntu-docker-host

https://static.ouster.dev/sensor-docs/image_route1/image_route2/appendix/ptp-quickstart.html

https://jfearn.fedorapeople.org/fdocs/en-US/Fedora_Draft_Documentation/0.1/html/System_Administrators_Guide/sec-Starting_ptp4l.html

https://manpages.ubuntu.com/manpages/focal/man8/ptp4l.8.html

https://www.renesas.com/en/video/ieee-1588-test-setup-linux-precision-time-protocol-ptp

https://www.erp5.com/officejs/fork/rapidspace-Document.Blog.ORS.HowTo.Synchronise.ORS%3Fformat%3Dpdf