�1���� Scope
������� 1.1���� Application of this Recommendation
������� 1.2���� Transport network layers
����������������� 1.2.1���� PDH and SDH transport networks
����������������� 1.2.2���� ATM connections
������� 1.3���� Allocation of end-to-end performance
�2���� References
�3���� Abbreviations
�4����
Terms and definitions
������� 4.5���� Error performance events for paths
������� 4.6���� Error performance events for connections
������� 4.7���� Error performance parameters
�5����
The measurement of the block
������� 5.1���� In-service monitoring of blocks
������� 5.2���� Out-of-service measurements of blocks
�6����
Performance assessment
������� 6.1���� Implications for error performance measuring devices
������� 6.2���� Performance monitoring at the near end and far end of a path
�7����
Error performance objectives
������� 7.1���� End-to-end objectives
������� 7.2���� Apportionment of end-to-end objectives
����������������� 7.2.1���� Allocation to the national portion of the
end-to-end path or connection
����������������� 7.2.2���� Allocation to the international portion
of the end-to-end path or connection
Annex A � Criteria
for entry and exit for the unavailable state
������� A.1���� Criteria for a single direction
������� A.2���� Criterion for a bidirectional path or connection
������� A.3���� Criterion for a unidirectional path or connection
������� A.4���� Consequences on error performance measurements
Annex B �
Relationship between PDH path performance monitoring and� the block-based parameters
������� B.1���� General
����������������� B.1.1���� Block size for monitoring PDH paths
����������������� B.1.2���� Anomalies
����������������� B.1.3���� Defects
������� B.2���� Types of paths
������� B.3���� Estimation of the performance parameters
� ������B.4���� In-service
monitoring capabilities and criteria for declaration of the performance
parameters
������� B.5���� Estimation of performance events at the far end of a path
������� B.6���� Differences between this Recommendation and ITU-T Rec. M.2100
concerning path performance
����������������� B.6.1���� General
����������������� B.6.2���� Allocation methodology
Annex C �
Relationship between SDH path performance monitoring and� the block-based parameters
������� C.1���� General
����������������� C.1.1���� Converting BIP measurements into errored
blocks
����������������� C.1.2���� Block size for monitoring SDH paths
����������������� C.1.3���� Anomalies
����������������� C.1.4���� Defects
����������������� C.1.5���� Measurement of performance events using
aggregate parity error counts
������� C.2���� Estimation of the performance parameters
������� C.3���� Estimation of performance events at the far end of a path
Annex D �
Relationship between cell-based network performance monitoring and the block-based
parameters
������� D.1���� General
����������������� D.1.1���� Block size for monitoring cell-based
paths
����������������� D.1.2���� Anomalies
����������������� D.1.3���� Defects
������� D.2���� Types of paths
������� D.3���� Estimation of the performance parameters
������� D.4���� Estimation of performance events at the far end of the path
Appendix I � Flow
chart illustrating for digital paths the recognition of anomalies,� defects, errored blocks, ES and SES
Appendix II � Bit
errors and block errors, merits and limitations
Appendix III �
Applicability of this Recommendation to non-public networks