CONTENTS

�1���� Scope�
�2���� References�
�3���� Definitions and terminology����������
�4���� Abbreviations���
�5���� ATM-MPLS network interworking management model (overview)����������
�6���� Network interworking management functional model��������
�7���� Network interworking defect, availability and performance considerations�
�8���� Network interworking: procedures at the egress IWF�������
�9���� Layer network interworking management reference model
������� 9.1���� Overview��
������� 9.2���� Layer network interworking in the ITU-T Rec. G.805 context��������
10���� Layer network interworking defect, availability and performance considerations���
11���� Layer network interworking procedures at an IWF����������
12���� Security considerations���
Annex A � Modifications to Y.1711 codepoints����
���� ���A.1���� Additional Y.1711 Defect Type codepoints�����������
������� A.2���� Modification to existing Y.1711 Defect Type codepoints���
Appendix I � ATM-MPLS network interworking fault scenarios����
������� I.1���� Automatic fault detection����
������� I.2���� Fault indication�������
Appendix II � Layer network interworking fault scenarios����
������ II.1���� Fault detection/notification/availability����������
������ II.2���� LSP1-ME failure (fault location 1)��
������ II.3���� LSP2-ME failure (fault location 2)��
������ II.4���� LSP1-ME and LSP2-ME failure (fault locations 1 and 2)����
������ II.5���� Fault in the IWF-NE (fault location 3)���������
������ II.6���� Fault in the ATM ME (fault location 4)����