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All rights reserved © 2006, Alcatel Grid Standardization & ETSI (May 2006) B. Berde, Alcatel R & I
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 2 Strategic vision: unblock IT+Telecom Utility services on a large scale, providing conjointly: Network and resource-end system services (maybe co-optimized) Automated service, connectivity, and resource on-demand Internet achieves a critical mass of users Preserving the current level of infrastructure-based competition for operators and service providers New Grid technology: Adapting to the overall complexity while democratize Grid services
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 3 Overview Identifying requirements and defining specifications for next generation client-to-business (or business-to-business) communication Why: When 95% of the overall traffic is peer-to-peer (Direct Connect and Bit): Traffic characterization per end-user (with the courtesy of Acreo, 2005)
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 4 Transition to Telecom + IT convergence Broadening the scale of current Grid environments: Coping with the infinite amount of resources available through Internet Triple questioning: 1.How to set up accurately network resources, matching Grid applications requirements over the Internet 2.How to transform accessibility of resource-end systems into Internet networked resources 3.How to consider eventually optimization of those resources for Grid applications - with inherent QoS assurance and service monitoring New philosophy and thereby optimization methodologies are relevant: Virtualization of the resource location Tradeoff between network resource and resource-end system capacity/performance (CPU, storage, etc)
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 5 What is about current applications and signaling Client-to-Business and Business-to-Business applications can be both session based and non–session based Such applications include (but are not limited to): Peer-to-peer applications Grid computing eCommerce, eGovernment etc requiring low latency and highly variable bandwidth in time Therefore, signaling is performed today (and often mixed between): Application layer Service delivery layer supported by service connectivity layer e.g., session initiation/control And rely on a pre-engineered IP/MPLS network (no interaction with)
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 6 Existing solutions: hosts drive the network Network resource reservation: Today corporate resources are accessible via dedicated networks rarely accessible from the Internet Application level communication protocols uses often large middleware (even though standardized) Dedicated point-to-point connections; networking issues such as dynamic routing and traffic engineering are no longer required Communication between applications and network: A (domain) central management instance, Bandwidth-Broker (BB) type solutions; however, there is no efficient means today to communicate between (distributed) applications and networks Service Resource Broker (SRB) But generally, a sort of QoS overlay atop the network infrastructure e.g., Infranet initiative
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 7 Transition: the problem space Existing solutions: 1.Communication at the applicative level - network seen as a black box Innovation for production networking: 2.Service adaptive and cooperative communication between hosts and the network - network is integrated with hosts Main challenges: 3.Evolution from existing 1 to 2 4.Adjoining virtualized access to resource end-systems
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 8 Transition: how to link application and network Need for end-to-end network resource provisioning Mapping of Grid application/middleware requirements to the network layer at host – (vertical arrow) Provide edge-to-edge network resource reservation using the CURRENT network layer capabilities - (horizontal arrows at the network layer) Innovation: Service adaptive and cooperative host-to-host (end-to-end) resource reservation mechanism
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 9 Broadband Access network METRO Network Broadband Access network Enterprise network Core network Corporate Network = VARS networks = Server parks Target result: VAR service (Virtual Access to Resource) Client Virtualization Client
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 10 Positioning the overall technical framework Key 1: Enable integration of custom business applications across networks Key 2: Open new markets to Telcos APP TCP/UDP IP Virtual accessibility TCP/UDP Project activity focus
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 11 Scope of acitivities at ETSI Define and specify various (end-to-end) signaling needs with the related horizontal and vertical interfaces between: Application level Service delivery platform e.g., middleware Service connectivity level Service stratum independent from any network-layer specific mechanism e.g., QoS for seamless (collaborative) application communication and resource information handling with the service stratum Outline some business aspects: interactions between client / network / service provider Create momentum and propose standardization topics Service stratum
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 12 Conclusions Business aspects: Grid technologies do not generate money today Grid over the Internet needs the support of Telecom operators The business sustainability is only possible if making the evolution from enterprise and scientific Grid to wide-area Utility Grid - the next step Utility vision for Grid (over Internet): Not a single transposition of existing Grid environments into Internet networked ones Not all about middleware Serious networking and other problems arise - real research challenges Standardization at ETSI - may play a crucial role in the Telecom and IT convergence
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 13
All rights reserved © 2006, Alcatel ETSI Standardization / May 2006 Page 14 Service signaling: session enabled host-network interaction Session-level signaling is intercepted at the edge SAL level allowing to communicate session requirements to the network Session-level signaling indirectly uses network reserved resources (not only for network resources) => Embedded network intelligence Network Transport Network Transport APP SAL APP SAL IP GMPLS Host-network communication though Session-layer signaling (1)(3) (2)
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