�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���� Network reference model
�7���� Network limits
������� 7.1���� Network limits at reference point A
������� 7.2���� Network limits at reference point B
������� 7.3���� Network limits at reference point C
������� 7.4���� Network limit at reference point D
������� 7.5���� Network limit at reference point E
Appendix I � Clock models for noise accumulation simulations
������� I.1���� T-BC models for noise accumulation simulations
������� I.2���� End-to-end TC models for noise accumulation simulations
Appendix II � HRMs used to derive the network limits
������ II.1���� HRM composed of T-BCs
����������������� II.1.1���� HRM without physical layer frequency support from
the network
����������������� II.1.2���� HRM with physical layer frequency support from the
network
�� ���������������II.1.3���� HRM for cluster-based synchronization
������ II.2���� HRM composed of T-BCs and T-TCs
����������������� II.2.1���� HRM with physical layer frequency support from the
network
Appendix III � Network limits considerations
�� ���III.1���� Measurement of network limits in case of deployment case 1
Appendix IV � Constant and dynamic time error and error accumulation
������ IV.1���� Introduction
������ IV.2���� Components of time error
������ IV.3���� Accumulation of time error in a chain of clocks
Appendix V � Example of design options
������� V.1���� Network limits
������� V.2���� Components of time error budgets
������� V.3���� Failure scenarios
������� V.4���� Time error budget allocation
������� V.5���� Operator options
������� V.6���� Further details
Appendix VI � Mitigation of time error due to synchronous Ethernet transients
Appendix VII � Maximum relative time error
Appendix VIII � Models for budgeting in a chain of microwave devices
Appendix IX � Models for Budgeting in a chain of xPON or xDSL devices