IBM Z Server Time Protocol Guide

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Introducing the Server Time Protocol

This chapter describes time synchronization and introduces the Server Time Protocol (STP) facility that is available for IBM Z servers.

The following topics are covered in this chapter:

•Introducing time synchronization

•Overview of Server Time Protocol

•STP concepts and terminology

•Coordinated Timing Network

•Coupling links

•External Time Source

•Firmware implementation

1.1 Introducing time synchronization

Historically, the most important requirement for highly accurate time is for navigational purposes. ...

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