CONTENTS

 1     Scope
 2     References
 3     Definitions and abbreviations
        3.1     Definitions
        3.2     Abbreviations
 4     Access Network functional architecture and related functions
        4.1     Introduction
        4.2     General Access Network architecture and boundaries
        4.3     General protocol model for Access Network
        4.4     Definition of individual functional groups
                  4.4.1     User Port Function
                  4.4.2     Service Port Function
                  4.4.3     Core Function
                  4.4.4     Transport Function
                  4.4.5     AN System Management Function
        4.5     Access Network interfaces
                  4.5.1     User network interface
                               4.5.1.1     Individual UNI
                               4.5.1.2     Shared UNI
                  4.5.2     Service Node interface
                  4.5.3     Q3 interface
 5     Support of access types in Access Networks
 6     Transport capabilities
        6.1     Transport layer model
        6.2     Transport layer functions and requirements
 7     Management, control and operation issues
        7.1     Functional Management Architecture
        7.2     Requirements for operation and maintenance of access networks
        7.3     Description of the AN Management Functions
                  7.3.1     Management of the User Port Function
                               7.3.1.1     User Port Control
                               7.3.1.2     User Port Monitoring
                               7.3.1.3     User Port related Status Events
                  7.3.2     Management of the Core Function
                               7.3.2.1     Core Function control
                               7.3.2.2     Core Function monitoring
                  7.3.3     Management of Service Port Function
                               7.3.3.1     Service Port Control
                               7.3.3.2     Service Port Monitoring
                               7.3.3.3     Service Port related Status Events
                  7.3.4     Management of the Transport Functions
                               7.3.4.1     Transport Function Control
                               7.3.4.2     Transport Function monitoring
                               7.3.4.3     Transport Function related Status Events
                  7.3.5     Management of the AN System Management Function
                               7.3.5.1     AN System Management Function control
                               7.3.5.2     AN System Management Function monitoring
        7.4     Management Information flows
 8     Service Node interfaces and service node requirements
        8.1     Types of service nodes
                  8.1.1     Service specific Service Nodes
                  8.1.2     Modular Service Nodes
        8.2     Service Node Interfaces
Annex A  –  Access Network architecture aspects concerning access types and access function
        A.1     The access architecture and the relevant Recommendations
        A.2     Access connection element implementation cases
        A.3     The ET function in the different access connection element implementation cases
        A.4     Access network performance and maintenance
                  A.4.1     Access network error performance
                  A.4.2     User port maintenance and performance in case of access networks with and without copper drop
        A.5     Multi-hosting and multi-homing
        A.6     Accesses for on-demand service and leased line
Appendix I  –  Support of access types in Access Networks
        I.1     Status
        I.2     UNI 
        I.3     Access digital section
        I.4     Information type
        I.5     Transfer mode
        I.6     Direction
        I.7     Required channel rate or cell rate
Appendix II  –  Examples of functional models of lower network layers of access network
Appendix III  –  Examples of different Access Network configurations
      III.1     Multiplexing on transmission media layer
      III.2     Multiplexing on path layer
                III.2.1     Remote access connection
                III.2.2     Remotely connected access
      III.3     Full integration