Many services running on modern digital telecommunications networks require accurate synchronization for correct operation.Modern telecommunications networks use highly accurate primary master clocks that must meet the international standards requirement for long term frequency accuracy.
Computer Time Synchronisation Concepts
The contents include a short introduction to date and time scales in general, followed by an
introduction how computers keep time and how the computer time can be disciplined. This includes basic information on commonly used techniques and protocols as well as advantages and limitations of individual techniques.
Why is IEEE 1588 so accurate?
Five Minute Facts About Packet Timing
How to setup an NTP Cluster
Cluster mode is a specific way of operation which involves multiple NTP servers in a kind of a cloud.