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Architectures & Interworking in ITU-T SG13

This document discusses the scope, future trends, and role of WP 2/13 in ITU-T SG13. It covers topics such as network architectures, interworking, service requirements, and the evolution of telecommunication infrastructure.

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Architectures & Interworking in ITU-T SG13

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  1. Architectures & Interworking in ITU-T SG13 14 May 2001 Chae-Sub, LEE (Korea Telecom)

  2. Scope of WP 2/13 Questions in WP 2/13 Future Evolution Trend Role & Activities of WP 2/13 study Vision of WP 2/13 Contents

  3. NGN Multi-Protocol based network 64 kbps based ISDN ATM/B- ISDN IP based network 1. Scope of WP 2/13 ARCHITECTURE GII INTERWORKING

  4. Service requirements and its Provision ToP Down Long Term • Principles • Business Model • Logical Model / Framework • Functional Model • Implementational Model • Specification of capabilities • Scenarios Facility Network Short Term Bottom Up Scope and impacts of Architecture Work • PC based Multimedia • Mobile communication • Home/Personal video • Netizen • Identification of Resources • Assignment to Functional Group • Identification of Reference Points • Specifying required Capabilities Architecture Work • Router/switch • Soft switch • wireless access, xDSL/WDM

  5. Principles, Requirements, Frameworks and Architectures for an Overall Heterogeneous Network Environment Network Interworking including IP Multiservice Networks Core Network Architecture and Interworking Principles Interoperability of Satellite and Terrestrial Networks Access Architecture Principles and Features at the Lower Layers for IP-Based and Other Systems Telecommunication Architecture for an Evolving Environment 2. Questions in WP 2/13 Question Title 1/13 5/13 10/13 13/13 14/13 16/13

  6. Full Open and Competition Environments Telecom. Business Tele-Broadcasting Business Broadcasting Business Voice Data inc. Voice End to End Client to Server Data Integrated Service User friendly control Packet based transport Circuit based Optic based transmission Electronic based Integrated Telecommunication Infrastructure 2. Future Evolution Trend Change of Environment

  7. Circuit based Packet over Circuit 50 Penetration (%) 40 30 20 Packet based Circuit over Packet 10 2002 2003 1997 1998 1999 2001 2000 1996 Fixed telephone service Cellular & PCS Internet service users Market Changes and its Push

  8. Past : Seper. of Voice & Data Transp. Present : Sep. of V & D Access Circuit Switch. Transp. Capa. Circuit Switch. Transp. Capa. Circuit Switch. Access Capa. Circuit Switch. Access Capa. Packet Switch. Transp. Capa. Packet Switch. Access Capa. Packet Switch. Transp. Capa. xDSL / FTTx Future : Integration of V & D Access and Transp. Near Future : Integration of V & D Transport Circuit Switch. Transp. Capa. Circuit Switch. Access Capa. Packet Switch. Access Capa. Packet Switch. Transp. Capa. Packet Switch. Transp. Capa. Packet Switch. Access Capa. VoIP / VToA Expected Future Transition Trend

  9. Service / Application 1 Service / Application 2 Service / Application 2 Service / Application Service / Application 1 Service / Application 3 Service / Application 4 Service / Application 4 Service / Application 3 Naming Server Feature Server Policy Server Resource Server Subscrib. Server Server (Middleware) Network Net. B Net. A Net. D Net. C Connectivity Network Server based Configuration

  10. Traffic Policing Resource Arranging Media Adaptation Brokering Brokering Switching Switching Routing Switching Routing Transmission Transmission Transmission Near Future Past Today Extension of Core Network Functions

  11. Policing Addressing - IPv4, v6 - E.164 - NSAP Policing Routing Switching Diversity of Access Technologies Network Management Management Platform - CMIP - SNMP - JAVA - CORBA - DCOM Switching & Routing - IP - MPLS - ATM Accessing - ISDN - ADSL - Cable Modem - FLC - FTTH Multiplexing - IP - ATM - F/R - SDH/PDH - WDM Backbone Switching Network Transmission - ATM - SDH - WDM Access Switching Network Access Network Backbone Transmission Network

  12. Regulator User Program Provider Operator Possible Convergence Model of Tele-Broadcasting RelationsEnterprise Model  Regulation Interac. TV TV Mail Tele-gaming IP Platform or Others Telec. Infra. Broad- casting Infra. TV Internet E- Comm. New Applications and their Service Interworking Web TV/FM Networking Technologies and their Adaptations Computer/Consumer Technologies Interworking between two Infrastructures and their convergence New Technologies and their Products Structural Model of Convergence

  13. 4. Role and Activities of WP 2/13 Study • Develop Framework Architecture for RPOI • Identify Reference Point of Interconnection • Specify Attributes and Requirements of RPOI Interconnection • Framework Architecture of GII and Principle • Develop Telecom. Archit. For Evolv. Environ. • Study of New Reference Model • Develop Framework of IP based Network • Develop Automatic Transport Net. Archit. • Develop Access Network Architecture • Specify Network Capabilities for IP and others Architecture • Develop Framework for Interworking • Specify Interworking Functions btw. Different • Networks and Services Interworking

  14. Framework for RPOIs (Refer Rec. Y.140)

  15. Information Communication Architecture (Rec.Y.130) • identify the functions and behaviors between the user and network facilitiesin terms of middleware services ; • ensure adequate de-coupling between end user and network technologies; • define functions and behavior of middleware components; • identify points at which open interfaces might be defined. Session Management Party Identification Transport Selection

  16. Work plan of Automatic Switched Transport Network Consent at this May SG 13 Meeting G.astn ASTN Architecture ASTN Control Plane Link Discovery Signaling Routing CAC Restoration Transport management G.ason G.ndisc Modified Modified G.959.1/ G.dcm G.otncac G.otnlm existing or existing or G.709/G.798/ G.sdisc G.otnrtg G.otnres G.dcn/etc Consent at this October SG 15 Meeting

  17. Interworking between Telecom Networks and IP based Network Ref. Rec. Y.1401 • Transport Plane Interworking • Control Plane Interworking • Management Plane Interworking

  18. 5. Vision of WP2/13 Packet based infrastructure IP Issues • Application of IP technology into Telecom infra and • specify Interworking between IP and Telecom • service/network • New architecture for full Packet based infrastructure (inc.Voice) • Migration path from Circuit based to Packet based infra (inc. Interworking) • Service and network capabilities for providing Packet based services • New access technology, OAM and Performance study based on full Packet infra

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