1
Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Packet network architectures
6.1 Network layers and
synchronization
6.2 Layer network
performance impacts on synchronization
7 Timing flows
8 Functional blocks
9 Next generation timing architectures
9.1 Current synchronization based on SDH
9.2 Synchronization performance
9.3 Network evolution
9.4 Next generation synchronization networks
10 Frequency transfer using synchronous Ethernet
10.1 Synchronous Ethernet: General
10.2 Operation modes
11 SSM for synchronous Ethernet
11.1 Packet-level SSM
11.2 Sync selection based on SSM
11.3 SSM for synchronous Ethernet: Format and protocol
11.4 ESMC PDU extensions
11.5 Interworking with existing synchronization networks
12 Synchronization management aspects
Annex A – Reference source selection mechanism
A.1 Requirements
A.2 Inputs
A.3 Internal oscillator
A.4 Internal physical
timing flows – Frequency ETY
A.5 Selection mechanism
A.6 Synchronization status
message selection
A.7 Hybrid equipment
selection function
Appendix I – Examples of timing flows
Appendix II – Functional models based on [ITU-T G.805] and
[ITU-T G.809]
II.1 Background
II.2 Application of [ITU-T
G.805] to the IWF
II.3 Timing information
transported over layer networks
II.4 Functional model of
Ethernet physical layer timing
II.5 Functional model for
differential and adaptive methods
Bibliography