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Grid services over IP Multimedia Subsystem

Grid services over IP Multimedia Subsystem. Antoine Pichot , Olivier Audouin, Alcatel. GridNets ’06. Grid services over IMS : Agenda. Introduction Requirements Connectivity on Demand solutions for Grid applications Proposed Grid utility architecture Conclusion. Objectives. What we want :

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Grid services over IP Multimedia Subsystem

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  1. Grid services over IP Multimedia Subsystem Antoine Pichot, Olivier Audouin, Alcatel • GridNets ’06

  2. Grid services over IMS : Agenda • Introduction • Requirements • Connectivity on Demand solutions for Grid applications • Proposed Grid utility architecture • Conclusion

  3. Objectives • What we want : • Network operators to provide computing & storage utility services • Control & Co-allocate resources (Network, CPUs, Storage…) • Added Value : • Resource virtualization (location & heterogeneity) • Application able to request service with QoS constraints • Network automatically provision resources • And compliant with Open Grid Service Architecture

  4. Requirements • From the OGSA framework • Information services (Resource Discovery) • Job Execution (Resource Selection) • Resource Management (Supervision) • Security (Authorization Authentication Accounting) • Self-Management (Optimization) • 2 approaches • State of the Art : • Network provides connectivity services with QoS constraint • Our proposal : • Network provides Grid services

  5. Overview of QoS techniques • Over-provisioning (Current internet) • Static-provisioning (PSTN) • End-to-end probes and Application self admission control • Bandwidth Broker • Signaled provisioning • Feedback based provisioning • Diffserv (no guarantee, but differentiation) • Combination of these techniques

  6. Focus on Signaled provisioning approaches • Mono-Signaling – Network Level • Mono-Signaling – Application level, • With a central Bandwidth Broker • Interconnected to a distributed network control plane • Dual Signaling

  7. Overview of existing architectures

  8. Simplified IMS overview Home Subscriber Base CSCF (Session Controllers) Management plane Diameter Proxy Inter-Domain SIP Service Application Control plane Application Server Multimedia Resource Function

  9. SIP Enhanced Registrar SIP P-CSCF SIP Grid over IMS Enhanced Registrar = • SIP Proxy • Location Service • Traffic Engineering Database • X-Optimize Resource Selection : • Network path & Destination Clusters P-CSCF = • SIP Proxy • AAA support Application Decision Router Router (G)MPLS controlled network

  10. Enhanced Registrar P-CSCF Grid over IMS Enhanced Registrar = • SIP address <-> IP Address • Cluster@telcoX.com <-> w.x.y.z • Resource Capabilities User/Resources Registration • UserX@domainY.com <-> a.b.c.d • User Preferences Clusters SIP REGISTER SIP REGISTER Application Router Router (G)MPLS controlled network

  11. Clusters Enhanced Registrar P-CSCF Application Router Router (G)MPLS controlled network Grid over IMS Resource Selection Service Request Enhanced Registrar = • Traffic Engineering Database • X-Optimize Resource Selection : • Network path & Destination SIP INVITE Cluster@telcoX.com SIP INVITE

  12. Clusters Enhanced Registrar P-CSCF Application Router Router (G)MPLS controlled network Grid over IMS Features Negotiation SIP INVITE SIP 183 SIP 183 SIP 183

  13. Enhanced Registrar P-CSCF Grid over IMS Before Network Signaling Clusters Application Create Token Decision Router Router (G)MPLS controlled network

  14. Enhanced Registrar P-CSCF Grid over IMS Network Signaling Clusters Application Create Token Decision Decision Check Token RSVP-TE +token Router Router (G)MPLS controlled network

  15. Conclusion : Why IMS ? • Common Objectives & Functionalities • IMS is already under trial and deployment by telcos IMS objectives: Multimedia services Person to person communication Grid services : Resource access services Machine to Machinecommunication Common Objectives: Sell new services QoS required One network for all services Common Functions: User Authentication per session/service charging Destination selection Features negotiation Supervision environment

  16. Let’s exchange ideas : antoine.pichot@alcatel.fr www.alcatel.com

  17. Grid over IMS

  18. Enhanced Registrar P-CSCF Grid over IMS Enhanced Registrar = • SIP Proxy • Location Service • Trafic Engineering Database • X-Optimize Resource Selection : • Network path & Callee P-CSCF = • SIP Proxy • AAA support CPUs SIP SIP SIP Application Create Token Decision Check Token RSVP-TE +token Router Router (G)MPLS controlled network

  19. Enhanced Registrar P-CSCF Grid over IMS Enhanced Registrar = • SIP Proxy • Location Service • Trafic Engineering Database • X-Optimize Resource Selection : • Network path & Callee P-CSCF = • SIP Proxy • AAA support CPUs SIP SIP SIP Application Create Token Decision Check Token RSVP-TE +token Router Router (G)MPLS controlled network

  20. Scenario overview

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