Recommendation ITU-T G.8271.2/Y.1366.2 (05/2021) Network limits for time synchronization in packet networks with partial timing support from the network
Summary
History
FOREWORD
Table of Contents
1 Scope
2 References
3 Definitions
4 Abbreviations and acronyms
5 Conventions
6 Network reference model
7 Packet network limits
     7.1 Network limits at reference points A and L
     7.2 Network limit at reference point B
     7.3 Network limits at reference point C
          7.3.1 Packet network limits for APTS
               7.3.1.1 Type I network limit
               7.3.1.2 Type II network limit
          7.3.2 Packet network limits for PTS
               7.3.2.1 Type I network limit
               7.3.2.2 Type II network limit
     7.4 Network limit at reference point D
          7.4.1 Network limits for APTS
          7.4.2 Network limits for PTS
Appendix I  Deployment scenarios for partial timing support networks
     I.1 APTS and PTS network use cases
     I.2 Full timing support network followed by an APTS network or PTS network
     I.3 PTS network followed by an FTS network
     I.4 APTS network followed by a PTS network
     I.5 APTS network followed by an FTS network
     I.6 Use of PTS network to bridge between two FTS networks
Appendix II  Considerations for handling precision time protocol traffic in networks with partial timing support
     II.1 Network aspects
     II.2 Time error performance aspects
Appendix III  The use of frequency to maintain precise time
Appendix IV  Noise accumulation model in partially aware networks
Bibliography
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