�1���
�Scope�
�2��� �References�
�3��� �Definitions��
������ �3.1��� �Terms defined
elsewhere����
������ �3.2��� �Terms defined in this
Recommendation�������
�4��� �Abbreviations���
�5��� �Conventions�����
������ �5.1��� �Representation of
octets�����
�6��� �Introduction������
�7��� �Ring protection characteristics������
������ �7.1��� �Monitoring methods and
conditions
������ �7.2��� �Ethernet traffic and
bandwidth consideration�����������
������ �7.3��� �Protection switching
performance���
�8��� �Ring protection conditions and
commands
�9��� �Ring protection architectures��������
������ �9.1��� �Revertive and
non-revertive switching���������
������ �9.2��� �Protection switching
triggers�����������
������ �9.3��� �Protection switching
models�����������
������ �9.4��� �Traffic channel
blocking�����
������ �9.5��� �R-APS channel blocking����
������ �9.6��� �FDB flush��
������ �9.7��� �Multi-ring/ladder networks�
10��� �Protection control protocol���������
����� �10.1��� �Principles of
operations�����
����� �10.2��� �Protection switching
behaviour������
����� �10.3��� �R-APS format������
Appendix I � Ring protection network objectives��� �
Appendix II � Ethernet ring network objectives��� �
Appendix III � Description of the ETHDi/ETH Adaptation
function��� �
���� �III.1��� �ETHDi/ETH adaptation
function source (ETHDi/ETH_A_So)��������
���� �III.2��� �ETHDi/ETH adaptation
function sink (ETHDi/ETH_A_Sk)
Appendix IV � Ring protection scenarios��� �
Bibliography��� �