A whitepaper with lots of basic information on computer time synchronization is available at the whitepaper section of the Meinberg web site:
https://www.meinbergglobal.com/english/info/#whitepaper
Specifically:
“Computer time Synchronization Concepts”
https://www.meinbergglobal.com/download/burnicki/Computer%20Time%20Synchronization%20Concepts%20-%202014-04-29.pdf
— Martin Burnicki 2016-05-13 11:45