�1���� Scope�
������� 1.1���� Application of this Recommendation�����������
������� 1.2���� Transport network layers���
������� 1.3���� Allocation of end-to-end
performance��������
�2���� References�
�3���� Abbreviations���
�4���� Terms and Definitions������
�5���� Measurement of the block
������� 5.1���� In-service monitoring���������
������� 5.2���� Out-of-service measurements���������
�6���� Performance monitoring at the near
end and far end of a path��������
�7���� Relationship between path
performance monitoring and the block-based parameters���������
������� 7.1���� General��
������� 7.2���� Estimation of the performance
parameters��
������� 7.3���� Estimation of performance events
at the far end of a path����
�8���� Error performance objectives�������
������� 8.1���� End-to-end objectives�������
������� 8.2���� Hypothetical reference optical
path�
������� 8.3���� Allocation of end-to-end
performance objectives����
Annex A � Criteria
for entry to and exit from the unavailable state����
������� A.1���� Criteria for a single direction����������
������� A.2���� Criterion for a bidirectional path����
������� A.3���� Criterion for a unidirectional
path���
������� A.4���� Consequences on error performance
measurements�����������
Appendix I � Flow
chart illustrating the recognition of anomalies, defects, errored blocks, and
SES����
Appendix II � Example
of OTN layer network trails����