GR 2946 CORE : ISSUE 3

Preface
1 Introduction
    1.1 General
    1.2 Purpose and Scope
    1.3 Related documents
    1.4 Target Audience
    1.5 Organization of This Document
2 CCS Network Interconnection Architecture for HSLs
    2.1 HSL Network Architecture Overview
          2.1.1 Use of High Speed Signaling Links
                  2.1.1.1 HSL Deployment Drivers
                  2.1.1.2 General Conversion Issues
          2.1.2 HSL Network Interconnection Architectures
                  2.1.2.1 Interconnection Using STPs and
                           D-Link Quads
                  2.1.2.2 High Speed Link Interconnection
                           Using A-Links
                  2.1.2.3 Other Interconnections
                  2.1.2.4 BCC Network Access
          2.1.3 Transition Plan
                  2.1.3.1 Transition Planning Considerations
                  2.1.3.2 Transition Plan for Link Set
                           Groupings
    2.2 HSL Protocol Architecture
          2.2.1 Physical Layer
          2.2.2 ATM Layer
          2.2.3 Signaling ATM Adaptation Layer (SAAL)
                  2.2.3.1 Common Part (CP)
                  2.2.3.2 Service Specific Connection Oriented
                           Protocol (SSCOP)
                  2.2.3.3 Service Specific Coordination Function
                           (SSCF) at the NNI
                  2.2.3.4 SAAL Layer Management
                  2.2.3.5 Signaling Network Layer
                           (MTP-Level 3)
3 HSL Protocol Specification for the CCS Network Interface
    3.1 Physical Layer
          3.1.1 Synchronization
    3.2 ATM Layer
          3.2.1 ATM Layer Protocol
          3.2.2 ATM Layer Operations Flows
    3.3 SAAL at the NNI
          3.3.1 Overview
          3.3.2 AAL Common Part Protocol
          3.3.3 SSCOP Protocol
          3.3.4 SSCF
          3.3.5 Layer Management-Related Specifications
    3.4 MTP-3
          3.4.1 Message Routing
                  3.4.1.1 Message Length
                  3.4.1.2 Signaling Link Selection
          3.4.2 Changeover Order Message Format
          3.4.3 Coding Conventions
4 Network Engineering
    4.1 Differences in Engineering MTP Level 2 Links and
          ATM HSLs
    4.2 Engineering HSLs
    4.3 Transitional Issues
5 Performance
    5.1 Signaling Network Transport Time
    5.2 Signaling Network Availability and Signaling Link
          Diversity
    5.3 Lost Message Probability
    5.4 Undetected Error Probability
    5.5 Lost Message Probability
    5.6 Signaling Link Error Performance
6 Interface Provisioning, Operations and Maintenance
    6.1 SSCOP Credit Determination
    6.2 Message Length
    6.3 Link Parameters
    6.4 ATM OAM Capabilities
    6.5 HSL Link Engineering
References
List of Figures
2-1 Potential HSL Interconnection Topologies
2-2 BCC STPs to ICN STPs High Speed Signaling Network
      Interconnection Architecture
2-3 BCC STPs to ICN Signaling End Point High Speed
      Signaling Network Interconnections Architecture
2-4 BCC STPs to ICN STP/Combined Node High Speed Signaling
      Network Interconnections Architecture
2-5 BCC STPs to OLC ALC Signaling Network Interconnections
2-6 Suggested Replacement Sequence for MTP2 Links in an
      Internetwork D-Link Set Quad
2-7 High Speed Link Protocol Model
2-8 ATM Cell Structure
3-1 ATM NNI Cell Structure
3-2 SAAL for NNI Signaling
3-3 Format of the Changeover Message Containing the
      Extended Changeover Signals
3-4 General Format and Coding Conventions of Messages
      Conveying Peer-to-Peer Information for HSLs
3-5 General Format and Coding Conventions of Signaling
      Network Management Message for HSLs
5-1 Example of ISUP Message Transport
List of Tables
3-1 SSCOP Timers and Parameter Values
3-2 SSCF Timers and Parameter Values
3-3 Layer Management Parameters and Timers

Provides the proposed generic network interface requirements on interconnecting client company Common Channel Signaling (CCS) networks and other Interconnecting CCS Networks (ICNs) using High-Speed Signaling (HSL) links.