Management of the Internet and Complex Services European Sixth Framework Network of Excellence FP 6 - 2004 - IST - 026854 - NoE Deliverable 8 . 1 Definition of Service Provisioning Goals , Economic Impacts , and SLA Management Tasks
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چکیده
With many organizations now employing multiple data centres around the world to share global traffic load, it is important to understand the effects of geographical distribution on service quality. The Domain Name Service (DNS) is an important component for global load balancing. Using controllable simulations, we show that wide area sharing can play an important role in optimization of response times when traffic levels exceed that which can be supplied by a local infrastructure. We compute the probability of being able to meet Service Level Objectives as a function of DNS caching policy (Time To Live), so that service providers can account for DNS error margins in Service Level Agreements. Table of
منابع مشابه
Management of the Internet and Complex Services European Sixth Framework Network of Excellence FP 6 - 2004 - IST - 026854 - NoE Deliverable 8 . 3 Definition of a Draft Extended IP Network Management Model
Service Level Agreements (SLA) are needed to allow business interactions to rely onInternet services. Service Level Objectives (SLO) specify the committed performance levelof a service. Thus, SLA compliance auditing aims at verifying these commitments. SinceSLOs for various application services and end-to-end performance definitions vary largely,automated auditing of SLA com...
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Caisse des Dépôts et Consignations, CDC, France Institut National de Recherche en Informatique et Automatique, INRIA, France University of Twente, UT, The Netherlands Imperial College, IC, UK International University Bremen, IUB, Germany KTH Royal Institute of Technology, KTH, Sweden Oslo University College, HIO, Norway Universidat Politecnica de Catalunya, UPC, Spain University of Federal Arme...
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