Preface
5T encompasses several technologies, features and capabilities related to time synchronization. From an application perspective, 5T technology allows:
Synchronizing servers using PTP
Enabling SyncE
Offloading TDMA networking
Accurately streaming data without drifting
Testing and measuring all of the above
About This Document
This document can be used as a textbook or handbook.
Chapter 3 describes the technology and feature-set in hardware, giving users confidence in the applicability of the statements as well as an understanding of the inner workings of the underlying technology.
Chapter 4 describes how to tune the server for better performance.
Chapter 5 describes how to best install and run a linuxptp and tune PTP performance.
Glossary
Abbreviation/Term | Meaning |
PHC | PTP hardware clock |
PTP | Precision Time Protocol |
PPS | Pulse per second |
NIC | Network interface card |
dTE | Dynamic Time Error |
cTE | Constant Time Error |
max |TE| | Maximum absolute time error |
COTS | Commodity of the shelf |
PTP4L | implementation of the Precision Time Protocol |
OC | Ordinary clock |
BC | Boundary clock |
MC | Master clock |
GM/GMC | Grandmaster/grandmaster clock |
TC | Transparent clock |
TIE | Time Interval Error |
TAE | Time Alignment Error |
QP | send and receive queue are always created in pair and referred to as Queue-Pair (QP) |