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Enabling Grids for E-sciencE NRENs & Grids Workshop Relations between EGEE & NRENs Mathieu Goutelle (CNRS UREC) EGEE-SA2 activity Amsterdam, 2005-05-12 www.eu-egee.org INFSO-RI-508833 EGEE Networking Activities Enabling Grids for E-sciencE • 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) INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 2 Our approach Enabling Grids for E-sciencE • 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). INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 3 Operational interface Enabling Grids for E-sciencE • Define the interactions between the Grid User support and the NREN NOCs: SLA management (processing, installation, monitoring), Trouble management (reporting, interactions). – Definition of procedures and information 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…). INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 4 GEANT/NRENs notification handling Enabling Grids for E-sciencE E-mail notifications NREN GEANT NREN NREN Handling Procedure ENOC Filtering Network related TTS INFSO-RI-508833 Create an assigned ticket NRENs & Grids Workshop - Amsterdam, 2005-05-12 5 Troubleshooting workflow Enabling Grids for E-sciencE Problem problem assignment essiment ENOC TTM Feedback Feedback Problem Problem signalisation signalling NOC B USER PERT Problem resolution failure RC NREN A GEANT NREN B RC TTM: Trouble Ticket manager ENOC: EGEE Network Operation Center INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 6 SLA Enabling Grids for E-sciencE • 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”. e2e SLA b2b SLA Campus or Local Provider GEANT NREN 1 Campus or Local Provider NREN 2 EGEE site B EGEE site A A EGEE end-point A INFSO-RI-508833 B SLA1 C SLA2 D EGEE end-point B NRENs & Grids Workshop - Amsterdam, 2005-05-12 7 SLA institution scenarios Enabling Grids for E-sciencE • 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 INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 8 QoS experiment Enabling Grids for E-sciencE • 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. INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 9 Network Performance Monitoring Enabling Grids for E-sciencE • 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. INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 10 Network Performance Monitoring Enabling Grids for E-sciencE Some Client NM-WG NM-WG End Site EDG WP7 End Site Home grown INFSO-RI-508833 NM-WG NM-WG NM-WG Backbone Perfmonit Backbone PiPEs Backbone GN2 NRENs & Grids Workshop - Amsterdam, 2005-05-12 11 Network Performance Monitoring Enabling Grids for E-sciencE Diagnostic Client NM-WG JRA4 NPM Mediator NM-WG NM-WG End Site EDG WP7 End Site Home grown INFSO-RI-508833 NM-WG NM-WG NM-WG Backbone Perfmonit Backbone PiPEs Backbone GN2 NRENs & Grids Workshop - Amsterdam, 2005-05-12 12 BAR Enabling Grids for E-sciencE • 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). INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 13 Reservation Architecture Enabling Grids for E-sciencE • 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. INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 14 Conclusion Enabling Grids for E-sciencE • 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? INFSO-RI-508833 NRENs & Grids Workshop - Amsterdam, 2005-05-12 15