�1����
Scope
�2���� References
�3���� Definitions
�4���� Abbreviations
�5���� OAM principles
������� 5.1���� Network configuration for
maintenance activities
������� 5.2���� Relation with the
Telecommunications Management Network (TMN)
������� 5.3���� Management of the information
produced by OAM functions
�6���� OAM levels and flows
������� 6.1���� OAM levels in the B-ISDN
������� 6.2���� Relationship of OAM functions with
the B-ISDN models
����������������� 6.2.1���� B-ISDN Protocol Reference Model (PRM)
����������������� 6.2.2���� ATM transport network model
�7���� Mechanisms to provide OAM flows
������� 7.1���� Physical layer mechanisms
����������������� 7.1.1���� SDH-based transmission systems
����������������� 7.1.2���� Cell-based transmission systems
����������������� 7.1.3���� PDH-based transmission systems
������� 7.2���� ATM layer mechanism
����������������� 7.2.1���� F4 flow mechanism
����������������� 7.2.2���� F5 flow mechanism
������� 7.3���� Association of the OAM mechanisms
with the transport functions
�8���� OAM functions of the physical
layer
������� 8.1���� OAM flows in some physical
configurations
������� 8.2���� OAM functions
����������������� 8.2.1���� OAM functions supported solely by the flows F1 to F3
����������������� 8.2.2���� OAM functions with regard to the system management
������� 8.3���� Additional OAM functions
����������������� 8.3.1���� LCD events
����������������� 8.3.2���� UNEX events
�9���� OAM functions of the ATM layer
������� 9.1���� OAM flows in some physical
configurations
������� 9.2���� OAM functions
����������������� 9.2.1���� OAM functions for VPC (F4 flow)
����������������� 9.2.2���� OAM functions for the VCC (F5 flow)
����������������� 9.2.3���� Activation/deactivation procedures
10���� ATM layer OAM cell format
������ 10.1���� Common OAM cell fields
������ 10.2���� Specific fields for fault
management cell
���������������� 10.2.1���� AIS/RDI fault management cell
���������������� 10.2.2���� Continuity check fault management cell
���������������� 10.2.3���� Loopback cell
������ 10.3���� Specific fields for performance
management cell
���������������� 10.3.1���� Forward performance monitoring cell
���������������� 10.3.2���� Backward reporting cell
������ 10.4���� Specific fields for
activation/deactivation cell
������ 10.5���� Specific fields for system
management cell
������ 10.6���� Specific fields for APS cell
Annex A�
Guidance on estimating VPC/VCC outages
Annex B�
SDLs for activation/deactivation using OAM cells
Annex C�
Procedures to be performed when receiving LB cells
������� C.1���� Case of seg_LB cells
������� C.2���� Case of e-t-e_LB cells
Appendix I�
Examples of OAM cell error detection codes
Appendix II
������ II.1���� Processes applicable to forward
performance monitoring cells
���������������� II.1.1���� Forced insertion
���������������� II.1.2���� Non forced insertion
������ II.2���� Process applicable to backward
reporting cells
���������������� II.2.1���� Forced insertion
���������������� II.2.2���� Non forced insertion
Appendix III� Use of segment loopback cells for localizing failures
����� III.1���� Description of failure types which
may be observed at the ATM layer level
����� III.2���� Loopback techniques applicable for
segment loopback cells
����������� ����III.2.1���� Basic principle of the single
loopback technique
��������������� III.2.2���� Basic principle of the multiple loopback technique
����� III.3���� Examples of use of segment
loopback cells for localizing failures occurring at the VP/VC layer levels
��������������� III.3.1���� Case of Point-to-Point VPC/VCC
��������������� III.3.2���� Case of point-to-multipoints VPC/VCC
Appendix IV�
OAM hierarchical levels and their relationship with the functional
model of G.805
Appendix V�
Use of an ID in the segment CC cell
������� V.1���� Basic concepts
������� V.2���� Defect conditions
������� V.3���� CC ID source/sink functions
������� V.4���� SESATM estimation
������� V.5���� Backwards compatibility
������� V.6���� Connection identification for the purposes
of through-path monitoring