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Service-level agreement

About: Service-level agreement is a research topic. Over the lifetime, 4358 publications have been published within this topic receiving 75333 citations. The topic is also known as: SLA.


Papers
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Patent
Gregory Lauer1
22 Jan 2002
TL;DR: In this paper, a system and method for generating a service level agreement (SLA) template are disclosed, which enables deployment of resources to support a number of SLAs and associated VPNs.
Abstract: A system and method for generating a service level agreement (SLA) template are disclosed. The SLA template generated by the disclosed system enables deployment of resources to support a number of SLAs and associated VPNs. The SLA template generated by operation of the disclosed system may include a first graphical user interface (GUI) template that specifies, at least in part, a GUI for use by a customer service representative (CSR) when accepting a service request or order from a customer. The disclosed SLA template may further include a number of SLA defaults, which may consist of default values and or software program code logic. The SLA defaults enable an SLA GUI to be configured such that a relatively small amount of information can be collected and used to derive other necessary configuration data. A second GUI template may be included in the SLA template to specify information to be obtained regarding networking devices and associated resources that must be used to provide a VPN over which are provided the services described in a particular SLA.

23 citations

Journal ArticleDOI
01 Aug 2015
TL;DR: In this paper, the authors present a dependable QoS monitoring facility which relies on the 'as a service' paradigm, and can thus be made available to virtually all cloud users in a seamless way.
Abstract: Cloud computing provides a new paradigm to enable on-demand delivery of computing resources such as infrastructure, platforms and software as utilities to customers. When moving applications and/or data in the cloud, numerous challenges exist in leveraging the full potential that cloud computing promises. In this paper we address the challenging issue of QoS monitoring in a cloud environment. The availability of a dependable i.e., reliable and timely QoS monitoring facility is key for the real take up of cloud computing, since - by allowing organisations to receive the full value of cloud computing services - it would increase the level of trust they would place in this emerging technology. In this paper, we present a dependable QoS monitoring facility which relies on the 'as a service' paradigm, and can thus be made available to virtually all cloud users in a seamless way. Such a facility is called QoSMONaaS, which stands for 'quality of service monitoring as a service'. Details are given about the internal design and current implementation of the proposed facility.

23 citations

Journal Article
TL;DR: A heuristic based resource allocation of VM selection and a VM allocation approach that aims to minimize the total energy consumption and operating costs while meeting the client-level SLA is proposed.
Abstract: Rapid growth of the IT industry has led to significant energy consumption in the last decade. Data centers swallow an enormous amount of electrical energy and have high operating costs and carbon dioxide excretions. In response to this, the dynamic consolidation of virtual machines (VMs) allows for efficient resource management and reduces power consumption through the live migration of VMs in the hosts. Moreover, each client typically has a service level agreement (SLA), this leads to stipulations in dealing with energy-performance trade-offs, as aggressive consolidation may lead to performance degradation beyond the negotiation. In this paper we propose a heuristic based resource allocation of VM selection and a VM allocation approach that aims to minimize the total energy consumption and operating costs while meeting the client-level SLA. Our experiment results demonstrate significant enhancements in cloud providers’ profit and energy savings while improving the SLA at a certain level.

23 citations

Book ChapterDOI
16 Jul 2007
TL;DR: Puppet (Pick UP Performance Evaluation Test-bed), an approach and a tool for the automatic generation of test-beds to empirically evaluate the QoS features of a Web Service under development is presented.
Abstract: In the last years both industry and academia have shown a great interest in ensuring consistent cooperation for business-critical services, with contractually agreed levels of Quality of Service. Service Level Agreement specifications as well as techniques for their evaluation are nowadays irremissible assets. This paper presents Puppet (Pick UP Performance Evaluation Test-bed), an approach and a tool for the automatic generation of test-beds to empirically evaluate the QoS features of a Web Service under development. Specifically, the generation exploits the information about the coordinating scenario (be it choreography or orchestration), the service description (WSDL) and the specification of the agreements (WS-Agreement).

23 citations

Journal ArticleDOI
TL;DR: This paper proposes a novel method for consolidation of virtual machines such that it meets Service Level Agreements (SLA) and deals with energy-performance trade-off, and results show that this scheme can provide better SLA performance.

23 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202339
2022106
2021183
2020233
2019237
2018255