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Two-level Content Delivery System in PIONIER Optical Network for interactive TV services Cezary Mazurek Poznan Supercomputing and Networking Center, Poland [email protected] The iTVP project aims at providing LARGE SCALE access to live and on-demand high quality multimedia streams assuring security and accountability of the service Project duration: • iTVP Concept & Design Jun 2003 – Nov 2003 • iTVP Platform Model Dec 2003 – Nov 2004 • Integration & Tests Dec 2004 – Nov 2005 • Deployment Dec 2005 – Nov 2006 Project partners iTVP Platform general overview • Content Provider System • Content Delivery System • License Management and Accounting • Interactive Portal PIONIER network CDS structure Hierarchical two-level content distribution system CDS core functions (1) • • • content distribution and delivery – live, VOD, nVOD – content replication, migration and removal request routing – allows to direct users to best proxy/cache servers – supports load balancing – authentication and authorisation monitoring – system load and status – critical events identification and logging – parameters: CPU load, free memory, network interfaces load, discs load and free space, – active distribution and delivery transactions CDS core functions (2) • reporting – active and passive data gathering – provides reports on system usage and errors • system management – – – – system configuration servers management startup/shutdown options available through management portal CDS technology overview • • • • • • • Microsoft Windows 2003 Server Windows Media Services .NET Framework .NET Remoting ASP.NET WebServices Microsoft Message Queue CDS summary Features: • based on IP network • component-based architecture • independent from broadband access network technology & operator • supports many content providers • supports end-to-end multimedia delivery chain • worldwide cooperation possible (Poland, GEANT, Abiliene, …) • provides environment for scalable high-quality multimedia services deployment Design issues: • scalability & availability • security • authentication and authorization • support for different distribution modes • easy integration with other platform components Contact Poznań Supercomputing and Networking Center Cezary Mazurek Network Services Department Manager e-mail: [email protected] phone: +48 61 858 20 30