�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���� Use of PTP for phase/time distribution���������
������� 6.1���� High-level design requirements������������
������� 6.2���� PTP modes and options������������
������� 6.3���� Protection aspects and Alternate BMCA������������
������� 6.4���� Phase/time traceability information����
�7���� ITU-T PTP profile for phase/time distribution with full timing support
from the network�������
�8���� Security aspects������
Annex A � ITU-T PTP profile for phase/time distribution with full timing
support from the network����
������� A.1���� Profile identification��
������� A.2� ���PTP attribute values���
������� A.3���� PTP options���
������� A.4���� Best master clock algorithm (BMCA) options��
������� A.5���� Path delay measurement option (delay request/delay response)��������
������� A.6���� Clock identity format�
������� A.7���� Configuration management options���
������� A.8���� Security aspects�����������
������� A.9���� Other optional features of IEEE Std 1588�-2008������������
������ A.10���� PTP common header flags�����
Annex B � Options to establish the PTP topology with the Alternate BMCA����
Annex C � Inclusion of an external phase/time input interface in a T-BC����
Appendix I � Considerations on the use of transparent clock����
Appendix II � Considerations on the transmission of Delay_Req messages����
Appendix III � Considerations on the default PTP Ethernet multicast address����
Appendix IV � Considerations on the use of priority2����
Appendix V � Description of PTP clock states and associated contents of
Announce messages����
������� V.1���� Purpose of the appendix���������
������� V.2���� Description of the states����������
������� V.3���� Example of mapping between PTP port states and PTP clock states
for a 3-port T-BC���
������� V.4���� T-GM Announce message contents based on the internal PTP clock
states������
������� V.5���� T-BC Announce message contents based on the internal PTP clock
states����