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Erschienen in:
2021 | OriginalPaper | Buchkapitel
8. Packet Timing: Precision Time Protocol
verfasst von : Dhiman Deb Chowdhury
Erschienen in: NextGen Network Synchronization
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Abstract
One of the most important packet timing protocol for next generation networks is Precision Time Protocol (PTP) defined by IEEE1588 standards for PTP version 2 (IEEE1588-2008) and PTP version 2.1 (IEEE1588-2019), respectively. The PTP is considered a step forward in comparison to other packeting timing protocol such as NTP and provides highly accurate time. Depending upon implementation, a time accuracy of 100 ns to sub-microsecond is attainable. In addition, PTP version 2.1 also supports internal and external security features making it ideal time synchronization protocol for next generation networks for different industry verticals such as 5G based Telecom network infrastructure, Smart Grid, Financial Network Services, Industrial, CATV, and Broadcast network infrastructure. This chapter explores details on PTP including its methods of operation, transport mechanisms, message structure, security features, and various profiles for use in different industry-specific networks environment.