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NRENs & Grids Workshop Relations between EGEE & NRENs

NRENs & Grids Workshop Relations between EGEE & NRENs. Mathieu Goutelle (CNRS UREC) EGEE-SA2 activity Amsterdam, 2005-05-12. EGEE Networking Activities. SA2: Network Resource Provision Technical Network Liaison Committee, Operational interface with NRENs, QoS experiment,

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NRENs & Grids Workshop Relations between EGEE & NRENs

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  1. NRENs & Grids WorkshopRelations between EGEE & NRENs Mathieu Goutelle (CNRS UREC) EGEE-SA2 activity Amsterdam, 2005-05-12

  2. EGEE Networking Activities • SA2: Network Resource Provision • Technical Network Liaison Committee, • Operational interface with NRENs, • QoS experiment, • SLAs installation between EGEE  Network (Geant & NRENs). • JRA4: Network Services Development • Bandwidth Allocation and Reservation, • Network Performance Monitoring, • IPv6 Uptake. Building important working relation between EGEE and the network providers (Geant & NRENs) NRENs & Grids Workshop - Amsterdam, 2005-05-12

  3. Our approach • Network must be viewed as a class of Grid resource: • Like computing and storage resources, • Implies a network resource provisioning architecture, • Problem to manage a resource outside the EGEE world! • This resource depends on the network services provided by the network providers (NRENs, Geant): • Current services: Premium IP (even not in all NRENs), • We need to anticipate on the future GN2 services: • Currently in the definition process, • GN2 project started 6 months later than EGEE. • Network Activities work in a long term perspective: • Most of the tasks started from scratch: Operational interface, SLA, NPM, BAR… • Except the monitoring tools coming from Datagrid (WP7). NRENs & Grids Workshop - Amsterdam, 2005-05-12

  4. Operational interface • Define the interactions between the Grid User support and the NREN NOCs: • SLA management (processing, installation, monitoring), • Trouble management (reporting, interactions). • Definition of proceduresandinformation flows between NOCs and EGEE: • Need of a consistent view of the “EGEE network”, • Need to evaluate its reliability and the quality of the services, • Will not replace the current interactions between a resource centre and its NREN. • Progressive integration into the existing Grid User Support (GGUS, http://www.ggus.org/): • Single entry point for the support to the Grid users, • Difficulties remain (trouble tickets normalization, languages…). NRENs & Grids Workshop - Amsterdam, 2005-05-12

  5. GEANT/NRENs notification handling NREN E-mail notifications GEANT NREN Handling Procedure NREN ENOC Filtering Network related Create an assigned ticket TTS NRENs & Grids Workshop - Amsterdam, 2005-05-12

  6. Troubleshooting workflow Problemassignment Problemsignalling NRENs & Grids Workshop - Amsterdam, 2005-05-12

  7. e2e SLA b2b SLA Campus or Campus or GEANT Local NREN 2 NREN 1 Local Provider Provider EGEE site B EGEE site A A B C D EGEE end-point A EGEE end-point B SLA1 SLA2 SLA • SLA definition: • Based on previous work and answers inside EGEE and from GN2 to some open issues (procedures, demarcation point…), • Definition in cooperation with GN2, • EGEE end-to-end SLA template: • SLA between the border of the NRENs cloud (border-to-border SLA) ; • Difficulty to accommodate and take into account the “last mile”. NRENs & Grids Workshop - Amsterdam, 2005-05-12

  8. SLA institution scenarios • All domains involved in network services provisioning to EGEE as part of the existing network infrastructure hierarchy have to be categorized as: • Compliant with the Premium IP service • Supportive of the Premium IP service • Indifferent to the Premium IP service NRENs & Grids Workshop - Amsterdam, 2005-05-12

  9. QoS experiment • Network service use case for an application: • Choice of a particular “interactive” application, • Aim: • Better knowledge of the SLA processing, • Better specifications of the applications requirements, • Precision about procedures and identified issues. • Status: • Validation on a local platform: • Validation of middleware modifications (packets marking), • Validation of the experimental protocol. • Tests on long distance networks: • First in the same administrative domain (Renater), • Then, tests involving three different networks, • Involved networks: Renater, Geant, GRnet. NRENs & Grids Workshop - Amsterdam, 2005-05-12

  10. Network Performance Monitoring • JRA4 approach: • Standardization of access to network performance monitoring across different domains and frameworks, • GGF NM-WG recommendation is the selected basis for standardisation. • Purpose: • Provide to Grid operations networking information for monitoring and troubleshooting, • SLA monitoring, • Information publication in the Grid Information System. • Potential user : middleware, end-user, Grid operations • Status: • Prototype ready (demo during the last GGF), • Security (on-going work inside EGEE), • Work on the interactions with the middleware. NRENs & Grids Workshop - Amsterdam, 2005-05-12

  11. NM-WG End Site Home grown NM-WG NM-WG Backbone GN2 Backbone PiPEs Network Performance Monitoring Some Client NM-WG End Site EDG WP7 NM-WG Backbone Perfmonit NRENs & Grids Workshop - Amsterdam, 2005-05-12

  12. NM-WG JRA4 NPM Mediator NM-WG End Site Home grown NM-WG NM-WG NM-WG Backbone GN2 Backbone Perfmonit Backbone PiPEs Network Performance Monitoring Diagnostic Client NM-WG End Site EDG WP7 NRENs & Grids Workshop - Amsterdam, 2005-05-12

  13. BAR • Purpose: • Provide Grid users the ability to use network services (reservations), • Interface with the mechanisms that will be available in the network, • Will first propose the Premium IP service. • Status: • Step-by-step integration with the network services: • Static configuration between 2 backbone sites ― june 2005, • Investigation of the “last mile” problem ―oct. 2005, • Pilot reservation system in limited number of site ― jan. 2006. • Need of a strong participation of NRENs (GN2). NRENs & Grids Workshop - Amsterdam, 2005-05-12

  14. Reservation Architecture • Integration of network resource in a more complex architecture: • Essential to meet the applications requirements, • Convergence between the allocation and reservation architecture of the EGEE middleware and the reservation architecture developed by GN2, • Joint work of GN2 and EGEE. • Status: • GN2 architecture is to be defined: • Based on inter-domain SLAs, • A still very manual prototype is foreseen due beginning of next year. • Preparatory work inside EGEE : • Convergence to a common architecture, • Consistency between the two architectures. NRENs & Grids Workshop - Amsterdam, 2005-05-12

  15. Conclusion • Progression of the two activities according to plan, • Good progress in terms of SLAs definitions: will the NRENs support our model? • Test of the operational interface during the summer, • QoS experiment = further step towards the fulfilment of applications requirements in term of network resources, • Good working relations with NRENs and GN2. Questions? NRENs & Grids Workshop - Amsterdam, 2005-05-12

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