P715 1 DOT’98 Workshop, September 1998 The EURESCOM Services Platform Lambert J.M. Nieuwenhuis Project Leader EURESCOM P715 KPN Research The Netherlands

P715 2 DOT’98 Workshop, September 1998 EURESCOM Project 715 Assessment of distributed object technologies based on experiments with commercially available products Experiments using CORBA middleware technologies based on architectural principles of TINA service architecture connection management end-user services HelsinkiTelephoneCompany DeutscheTelekom FranceTélécom KPN BritishTelecom TelecomÉireann

P715 3 DOT’98 Workshop, September 1998 EURESCOM Project 715 Assessment of distributed object technologies based on experiments with commercially available products Experiments using CORBA middleware technologies based on architectural principles of TINA service architecture connection management end-user services HelsinkiTelephoneCompany DeutscheTelekom FranceTélécom KPN BritishTelecom TelecomÉireann

P715 4 DOT’98 Workshop, September 1998 IT is a key technology processing networks transmission computers Information Technology ?

P715 5 DOT’98 Workshop, September 1998 network DOT in Telecommunications computing nodes and switches system software middleware distributed environment telecommunications services

P715 6 DOT’98 Workshop, September 1998 EURESCOM Project 715 Assessment of distributed object technologies based on experiments with commercially available products Experiments using CORBA middleware technologies based on architectural principles of TINA service architecture connection management end-user services HelsinkiTelephoneCompany DeutscheTelekom FranceTélécom KPN BritishTelecom TelecomÉireann

P715 7 DOT’98 Workshop, September 1998 CORBA 2.0 OMG’s CORBA provides the technologies to build TINA’s distributed processing environment...

P715 8 DOT’98 Workshop, September 1998 Object Request Broker ‘object’ Object Request Broker interface specification

P715 9 DOT’98 Workshop, September 1998 CORBA 2.0 Dynamic Invoc. Client IDL stubs ORB Interface Dynamic Static Invoc. Static Skeleton Object Adapter Object Request Broker core Client Object implementation Implem. repository Interface repository

P DOT’98 Workshop, September 1998 CORBA interoperability Dynamic Invocation Interface IDL stubs ORB interface Static skeleton Dynamic skeleton Object Adapter ORB Core Dynamic Invocation Interface IDL stubs ORB interface Static skeleton Dynamic skeleton Object Adapter ORB Core Client Object implementation ORB X ORB Y IIOP

P DOT’98 Workshop, September 1998 Interworking of platforms ethernet Finland United Kingdom Netherlands IP network France Germany Ireland Orbix Visibroker Orbix HP Orb plus omniOrb DCOM Orbix Distributed Smalltalk Sun NEO VisiBroker Orbix COOL ISDN IP CORBA Platform technologies

P DOT’98 Workshop, September 1998 EURESCOM Project 715 Assessment of distributed object technologies based on experiments with commercially available products Experiments using CORBA middleware technologies based on architectural principles of TINA service architecture connection management end-user services HelsinkiTelephoneCompany DeutscheTelekom FranceTélécom KPN BritishTelecom TelecomÉireann

P DOT’98 Workshop, September 1998 TINA Business Model Broker RetailerEnd-user Third party Service Provider Connectivity Provider

P DOT’98 Workshop, September 1998 TINA Reference Points Broker Connectivity Provider 3 Pty Service Provider Retailer Consumer TCon CSLN LNFed Bkr Ret-Ret 3 Pty Ret 3 Pty Bkr Service Architecture Network architecture

P DOT’98 Workshop, September 1998 EURESCOM Project 715 Assessment of distributed object technologies based on experiments with commercially available products Experiments using CORBA middleware technologies based on architectural principles of TINA service architecture connection management end-user services HelsinkiTelephoneCompany DeutscheTelekom FranceTélécom KPN BritishTelecom TelecomÉireann

P DOT’98 Workshop, September 1998 TINA Reference Points Broker Connectivity Provider 3 Pty Service Provider Retailer Consumer TCon TConTCon CSLN LNFed Bkr Bkr Bkr Ret-Ret 3 Pty Ret Bkr Service Architecture Network architecture

P DOT’98 Workshop, September 1998 Access and usage parts Access: secure context Usage: generic service session control ConsumerRetailer

P DOT’98 Workshop, September 1998 Access: secure context Usage: generic service session control ConsumerRetailer Access and usage parts

P DOT’98 Workshop, September 1998 Ret Reference Points PA UAP IA UA Access Usage ConsumerRetailer PA = Provider Agent UAP = User Application IA = Initial Agent UA = User Agent

P DOT’98 Workshop, September 1998 EURESCOM Project 715 Assessment of distributed object technologies based on experiments with commercially available products Experiments using CORBA middleware technologies based on architectural principles of TINA service architecture connection management end-user services HelsinkiTelephoneCompany DeutscheTelekom FranceTélécom KPN BritishTelecom TelecomÉireann

P DOT’98 Workshop, September 1998 Audio-visual streams support DPE Binding object ISDN connection

P DOT’98 Workshop, September 1998 Binding object Computational stream object Control Interface Stream Interface Computational stream object Modeling streams... Binding object abstracts from network and local resources Binding object models point-to-point point-to-multipoint multipoint-to-multipoint

P DOT’98 Workshop, September 1998 Binding object Stream object Stream object Mixed control Stream Channel Stream object Stream object CSM OMG A/V control e.g. H320 signaling

P DOT’98 Workshop, September 1998 Connection establishment Stream Ctrl Stream EndPoint VDev Stream EndPoint VDev 1. Create/Bind 2. Create 3. Configure4. Connect 5. ConnectReq 6. Flow MMDevice

P DOT’98 Workshop, September 1998 EURESCOM Project 715 Assessment of distributed object technologies based on experiments with commercially available products Experiments using CORBA middleware technologies based on architectural principles of TINA service architecture connection management end-user services HelsinkiTelephoneCompany DeutscheTelekom FranceTélécom KPN BritishTelecom TelecomÉireann

P DOT’98 Workshop, September 1998 End-user services Chat service Connect 4 Distributed Scheduler Information Retrieval of MHEG 5 content Shared whiteboard Value Added WWW Video on Demand Information Exchange

P715 DOT’98 Workshop, September 1998 Current status: 52 experiments... Platform building 19 experiments –10 completed –6 running –3 proposals Service Management 12 experiments –8 completed –3 running –1 proposal Streams 11 experiments –7 completed –3 running –1 proposed End-user services 10 experiments –3 completed –5 running –2 proposed

P715 DOT’98 Workshop, September 1998 Conclusions (1): Benefits of CORBA standardised way to DOT solution for integration provides open interfaces supports deregulation fast time-to-market solutions IDL specification support development

P715 DOT’98 Workshop, September 1998 Conclusions (2) Experience gained with CORBA P715 project has succesfully built a pan-European multi-vendor CORBA platform based on TCP/IP over N-ISDN connections. CORBA 2.x interoperability based on IIOP is adequate, however some problems exist. –more stable implementations are required First results with OMG A/V Stream control prototype are encouraging. CORBA systems need additional support for persistency, transactional behaviour, scaleability, security, and maintenance More and better tools for specification, development, and testing of DOT systems

P715 DOT’98 Workshop, September 1998 Conclusions (3) Strong points of TINA Business model –bridges gap between real world and technology –makes telecom business more understandable Reference Points –provides common set of concepts Weak points of TINA Monster specification –too many problems addressed? Lack of industrial support Emerging alternatives –e-commerce –Java / CORBA / Internet combination Network Resource Architecture –too centralised?

P715 DOT’98 Workshop, September 1998 Recommendations EURESCOM P9xx project: Technology Assessment of Middleware for Telecommunications continue hands-on experiments and manage and maintain EURESCOM Services Platform technology assessment of persistency, transactional behaviour, scaleability, security, and maintenance in DOT systems besides CORBA also other middleware components, e.g., Microsoft’s COM+, Internet and Web technologies Support industrial standardisation organisations, e.g., OMG Telecom TF, TINA WGs

P DOT’98 Workshop, September 1998 EURESCOM Project 715

P DOT’98 Workshop, September 1998 EURESCOM Project 715 Project Management Lambert J. M. Nieuwenhuis and Erik Peeters KPN Research, The Netherlands phone: fax: Project Supervisor Amardeo Sarma EURESCOM GmbH Heidelberg phone: fax: World Wide Web