CONTENTS

�1���� Scope�
�2���� References
�3���� Terms and Definitions��
�4���� Abbreviations and acronyms����
�5���� Conventions���
�6���� Assumptions��
�7���� Applications��
������� 7.1���� Overview of PNNI��������
������� 7.2���� Defect handling���
������� 7.3���� Example signalling flows�
�8���� Message functional definition and content������
������� 8.1���� Messages for distributed connection management��������
������� 8.2���� Messages used with the global call reference�����
�9���� General message format and Information Element coding�������
������� 9.1���� Overview�
������� 9.2���� Protocol discriminator����
������� 9.3���� Call Reference����
������� 9.4���� Message type and length�
������� 9.5���� Variable length Information Elements����
10���� Updated procedures����
������ 10.1���� Link Connection Identifier allocation/selection��
������ 10.2���� Connection clearing for non-persistent connections�����
������ 10.3���� Procedures for connections persistent across signalling failures
������ 10.4���� Bearer Plane failures�����
������ 10.5���� Receipt of NOTIFY messages���
Annex A � Transport of G.7713.1/Y.1704.1 messages over DCN network����
������� A.1���� Introduction������
������� A.2���� Differences in boundary interfaces�������
������� A.3���� Overview of SSCOPMCE link management process����
����� ��A.4���� Changes required to ITU-T Rec. Q.2931��������
������� A.5���� Changes required to the SSCF (ITU-T Rec. Q.2130)���
������� A.6���� Applicability of SSCOPMCE specific parameters and timers��
������� A.7���� Layer management boundary����
������� A.8���� Link types��������
Annex B � Graceful deletion����
������� B.1���� Introduction������
������� B.2���� Sending deletion notification�����
������� B.3���� Receiving deletion notification���
������� B.4���� Receiving ready for deletion������
Annex C � DTL processing in the absence of routing protocols����
Annex D � ASON call identifier����
Appendix I � Mapping of G.7713/Y.1704 UNI attributes to Q.2931/PNNI����
Appendix II � Mapping of G.7713/Y.1704 E-NNI Attributes to Q.2931/PNNI����
Appendix III � Link connection scope����
����� III.1���� Scope of the link connection identifier���
����� III.2���� A link connection identifier association function����