A SERVICE ORIENTED SLA MANAGEMENT FRAMEWORK FOR GRID ENVIRONMENTS C. Marinos, V. Pouli, M. Grammatikou, S. Papavassiliou, V. Maglaris Network Management & Optimal Design Laboratory (NETMODE) School of Electrical & Computer Enigineering National Technical University of Athens (NTUA) Tel: +30-210.772.1451, Fax: +30-210.772.1452 {cmarinos, vpouli, mary, papavassiliou, maglaris}@netmode.ntua.gr Abstract Traditionally, network Service Providers specify Service Level Agreements (SLAs) in order to guarantee service availability and performance to their customers. However, these SLAs are rather static and span a single provider domain. Thus they are not applicable to a multi–domain environment and do not enable users with the flexibility to set–up and monitor e2e services. In this paper we present a framework for automatic creation and management of SLAs in a multi-domain environment. The framework is based on Service Oriented Computing (SOC) and contains a collection of web service calls and modules hat allow for the automatic creation, configuration and delivery of an end– to–end SLA, created from the merging of the per–domain SLAs. We also present a monitoring procedure to monitor the QoS guarantees stipulated in the SLA. The SLA establishment and monitoring procedures are tested through a Grid application scenario targeted to perform remote control and monitoring of instrument elements distributed across the Grid. Keywords: Service Level Agreement, QoS, SLA framework, multi-domain, monitoring