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Business Models, Accounting and Billing Concepts in Grid-aware Networks

Business Models, Accounting and Billing Concepts in Grid-aware Networks. Serafim Kotrotsos 1 , Peter Racz 2 , Cristian Morariu 2 , Katerina Iskioupi 1 , David Hausheer 2 , Burkhard Stiller 2 1 EXIS IT ltd , Vas.Sofias 98, GR-11528 Athens, Hellas skotro@exis.com.gr

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Business Models, Accounting and Billing Concepts in Grid-aware Networks

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  1. Business Models, Accounting and Billing Concepts in Grid-aware Networks Serafim Kotrotsos1, Peter Racz2, Cristian Morariu2, Katerina Iskioupi1,David Hausheer2, Burkhard Stiller2 1EXIS IT ltd, Vas.Sofias 98, GR-11528 Athens, Hellas skotro@exis.com.gr 2 Department of Informatics, University of Zurich {racz, morariu, hausheer, stiller}@ifi.uzh.ch Supportedby Europe-China Grid InterNetworking www.ec-gin.eu

  2. Introduction • Grid: the infrastructure for computing and storage resource sharing across administrative boundaries over internet • Current Internet: based on original design  suitable for e-mail and web applications • Network Challenges for Grid Applications running on top of the Internet • Assuming that more than one network paths with no shared bottlenecks exist between two nodes… • Typical scenatios: • Large File Transfer • Streaming • The role of Incentives • Non-Monetary (e.g. TFT, PSH) based on reciprocity • Monetary, in heterogeneous large scale grids (proposed herein)

  3. Outline • A proposal for a traditional monetary – based incentive approach • Includes accounting and billing elements based on amount of traffic relayed • Based on a multi-domain approach • Supporting multiple virtual organizations and multiple network operators • Evaluated against Grid-based Large File Transfer

  4. The Large File Transfer Scenario Traditional routing would route all traffic between A and B through the same network path LFT could use Grid nodes as relays in order to route traffic from the sender to the receiver on multiple paths chosen by the sender.

  5. Business Models Cloud computing as business reality of Grid vision A vision of the Computational Economy based on Revenue sharing collaborating partners for the provision of Grid Services

  6. Overall Architecture • Clearing houses providing Billing and Accounting infrastructure in their domain • Metering element measuring traffic volumes • Security element maintaining certificates for each relay node • Pricing element incorporating traditional and advanced pricing models • Application(s) using LFT service

  7. Accounting Accounting records are exchanged via the Diameter Accounting Request / Answer protocol.

  8. Billing • The Clearing House is the 3rd party trusted side that assures objectivity • They maintain open accounts per Grid node / domain participating in the Computational Economy simplifying transactions • Services are cascaded, so that the users consider receiving total service by the first grid nodes in their alternative network paths. • Billing includes mediation, rating and post-paid invoicing

  9. Advantages of Architecture (1/2) • Support of accounting and charging across multiple domains. • Robustness and scalability through the support of multiple parallel sessions to different accounting servers. • Security, using IPSec and Transport Layer Security (TLS) over OpenDiameter library. • Simplicity by • applying the 'Service Cascading' concept • following the main structural blocks of state-of-the-art commercial billing infrastructures

  10. Advantages of Architecture (2/2) • Flexibility - not limitation to specific pricing / discounting policy, services, business relationships or network infrastructure • Feasibility - no complex pricing algorithms or metrics while supporting all possible complexity of business relations • Trust - clearing house entities, a pragmatic approach in network economies as the one of wireless telephony

  11. Conclusions • A realistic, monetary – based incentive – based framework for nodes providing explicit support to Grid – Applications • Exceptional results with LFT – based applications • Further research is addressed on real-time streaming services • This work brings the grid - vision closer to modern every – day business

  12. Acknowledgements • This work has been performed partially in the framework of the EU IST project EC-GIN under the contract STREP FP6-2006-IST-045256. • Additionally, the authors would like to acknowledge discussions with all of their colleagues and project partners.

  13. Thank you! Questions/Comments?

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