CONTENTS

�1���� Scope�
�2���� References�
������� 2.1���� ITU-T Recommendations��
������� 2.2���� IEEE specifications
������� 2.3���� Informative Reference��������
�3���� Definitions��
�4���� Abbreviations���
������� 4.1���� Abbreviations specified in RPR [9]�
������� 4.2���� Abbreviations specified in ITU-T Rec. I.321����������
������� 4.3���� Abbreviations specified in ETSI�����
������� 4.4���� Abbreviations specified in this Recommendation�����
�5���� Network framework of multiple services ring based on RPR���������
������� 5.1���� Elements of ring over RPR MAC���
������� 5.2���� Frame types on a ring and multiple services in tributary�������
������� 5.3���� Components of a data node in MAC client�
������� 5.4���� Reference point in MAC client of a data node��������
������� 5.5���� Transport functional architecture of MSR networks
������� 5.6���� Operation of network management frames in MAC client���
������� 5.7���� Fault management in MAC client����
������� 5.8���� Performance management in MAC client����
�6���� The protocol framework��
������� 6.1���� The protocol framework of aggregate pipe�
������� 6.2���� MSR (client) interface to RPR MAC����������
������� 6.3���� Tributary adaptation function unit����
�7���� Generic frame format�������
������� 7.1���� Destination address for use of this Recommendation�����������
������ 7.2 �����Extended Ethertype field����
������ 7.3 �����Payload Type (PT) field�����
������ 7.4 �����Payload FCS Indicator (PFI) field��
������ 7.5 �����Reserved field��������
������� 7.6���� TT/CS/NM field����
������� 7.7���� Tributary Number (TN) field����������
������� 7.8���� Reserved field��������
������� 7.9���� Frame Sequence Number (FSN) field��������
������ 7.10���� HEC field�
������ 7.11���� Payload of XP������
������ 7.12���� XP payload FCS��
�8���� Tributary Loopback (TRL) and Node Reachability Verification (NRV)�����
������� 8.1���� Tributary Loopback (TRL)
������ 8.2 �����Tributary Loopback (TRL) shortcut�����������
������ 8.3 �����Node Reachability Verification (NRV)�������
������ 8.4 �����Node Reachability Verification (NRV) shortcut������
�9���� TDM Circuit Emulation (TCE) over MSR
������� 9.1���� Introduction�����������
������ 9.2 �����Protocol framework of TDM Circuit Emulation (TCE)��������
������� 9.3���� Services provided by MSR Data link���������
������� 9.4���� Supported functions of XP for TCE case����
������� 9.5���� XP protocol involved to support TCE��������
������� 9.6���� Management function involved to support TCE�������
10���� Tributary Based Standby (TBS)��
������ 10.1���� Ethernet Tributary Based Standby (ETBS)
������ 10.2���� TCE Tributary Based Standby (TTBS)�����
11���� Tributary Based Multicast (TBM)�����������
12���� Bandwidth policing, merging, line-speed filtering, stacking and mirroring of tributary����������
����� 12.1 �����Tributary based policing � Bandwidth limitation with symmetry and asymmetry�������
����� 12.2 �����Tributary merging with symmetry and asymmetry���
����� 12.3 �����Tributary based security � line-speed filtering���������
13���� Topology application of link-type, broadcast network and pseudo-mesh��
������ 13.1���� Support of a link-type with adding and dropping tributary services�
������ 13.2���� Support of a broadcast connection to DVB application������
������ 13.3���� Support of a pseudo-mesh topology���������� �����������������������