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Introduction of Distributed Services Network

Introduction of Distributed Services Network. Yunfei Zhang China Mobile 2009.3.23 IETF74@SF. The outline. Introduction Terminology DSN Architecture DSN Scenarios and deployment Relationship between DSN and PPSP DSN Collaborative Platform. Introduction.

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Introduction of Distributed Services Network

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  1. Introduction of Distributed Services Network Yunfei Zhang China Mobile 2009.3.23 IETF74@SF

  2. The outline • Introduction • Terminology • DSN Architecture • DSN Scenarios and deployment • Relationship between DSN and PPSP • DSN Collaborative Platform

  3. Introduction • DSN----Distributed Services Network • A new question being standardized in ITU-T proposed by China Mobile • NGN DSN P2P Other distributed technologies

  4. Terminology • DSN the evolution of NGN driven by p2p technology which provides distributed, operatable and managable characteristics to support more carrier's grade rich multimedia services beyond current NGN scope. • Core Node the DSN node deployed in service provider domain, e.g. DSL/Wireless access and aggregation network, IP/MPLS core, etc. • User Node the DSN node in user domain, e.g. PCs, mobile terminals, etc.

  5. DSN Architecture Application Sub-Layer VoIP IM 。。。 Streaming/ Mobile TV Downloading Search Engine Game Service Enabler Sub-layer Distributed Cache Distributed Storage Distributed Delay Distributed Computing Enhanced P2P Control Sub-layer Overlay Interworking P2P Mobility P2P QoS P2P Security Platform &User mgmt Basic P2P Routing Sub-layer Topo-aware P2P Routing Index Mechanism Distributed content Publish/Update/Amendment IP Network

  6. DSN Scenarios • Service Scenarios • Multimedia telephony services • Streaming services • Content distribution service • Large-scale High Bandwidth Multi-media Service • Carrier Deployment Scenarios • Carrier private network-based Deployment • Internet Deployment

  7. Multimedia telephony services-P2PSIP realization SN A DSN UE A UE B SN E AAA server

  8. Streaming services-PPSP realization

  9. Content distribution PPSP can be used as well.

  10. Large-scale High Bandwidth Multi-media Service • Bandwidth exhausting multimedia service in the future may become the killer application • Presence system requires 3-10M network bandwidth, less than 100ms delay, and 10ms jitter, and also have high requirement on route setup process as well as QoS.

  11. Carrier private network-based Deployment • Private network deployment means deploying DSN on the carrier‘s private network. e.g. IP private network of China Mobile • Private network-based DSN can interact with traditional telecommunication networks via gateway.

  12. Internet Deployment • In this mode, DSN node can be deployed over Internet, or services provided by DSN node can be accessed from Internet. • Internet-based DSN can help carriers converge Internet service and address the service mode shift from voice to data.

  13. Relationship between DSN and PPSP • important types in DSN e.g. p2p streaming and other content services • need a uniform p2p streaming protocol run among core nodes and user nodes. • PPSP also be used when there are multiple DSN implementations which can be inter-worked each other for streaming service.

  14. DSN Collaborative Platform • We are setting up a DSN collaborative platform to • Deploy p2p applications • Test new p2p technologies • Difference from PlanetLab • Mobile and Wireless nodes participate as well • Borrowing ideas of Globus to manage the platform • Focusing more on deploying new p2p applications

  15. Thanks！

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