Amendment 3
1 Scope
2 References
3 Definitions
4 Abbreviations and acronyms
5 Conventions
6 General introduction to packet-based time/phase distribution
6.1 Requirements for packet-based time and phase distribution
7 Architecture of packet-based time/phase distribution
7.1 Packet-based time and phase distribution
7.2 Time/phase protection aspects
7.3 Packet network partitioning
8 Security aspects
9 Management aspects
Annex A – Time/phase models based on ITU-T G.805
Annex B – Inclusion of a virtual PTP port on a PTP clock
Annex C – Options to establish the PTP topology with the alternate BMCA
Annex D – Synchronization uncertain indication (optional)
Annex E – Use of the masterOnly and notMaster parameters in networks
Appendix I – Architecture for time and phase distribution over a packet network
providing PTS at the protocol level
I.1 Architecture for PTS
Appendix II – An example of PRTC switching by the BMCA in a ring network
Appendix III – Generic IWF node
III.1 Introduction
III.2 Inter-working between the [ITU-T G.8275.1] and [ITU-T G.8275.2]
profiles
III.3 Generation of the physical layer frequency signal by the IWF
III.4 Mapping IWF to telecom PTP clocks
Appendix IV – Use cases for mapping from PTP clockClass values to quality
levels
IV.1 Use case I
IV.2 Use case II
Appendix V – Deployment examples and the use of partially aware deviceTypes
Appendix VI – cnPRTC functional architecture
VI.1 Introduction
VI.2 cnPRTC functional architecture
Appendix VII – cnPRTC deployment scenarios
Appendix VIII – Description of PTP clock modes and associated contents of
Announce messages
VIII.1 Purpose of this appendix
VIII.2 Description of the modes
VIII.3 Example of mapping between PTP port states and PTP clock modes
for a 3-port T‑BC/T-BC-P/T-BC-A
VIII.4 T-GM Announce message contents based on the internal PTP clock
modes
VIII.5 T-BC/T-BC-P/T-BC-A Announce message contents based on the
internal PTP clock modes
Appendix IX – Considerations on the use of [IEEE 1588-2019]
Bibliography