Service level agreement (SLA) in Public Cloud environments: A Survey on the current enterprises adoption

Sfondrini, Nicola; Motta, Gianmario; You, Linlin

doi:10.1109/icist.2015.7288964

Cited by 24 publications

(9 citation statements)

References 17 publications

(13 reference statements)

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“…In this paper, a performance model to estimate the response time and a pricing model for determining the price of a job execution is used. With the recent work of SLA in cloud computing we have witnessed the emergence of a new category which is the mapping of SLA between Service Provider, Infrastructure Provider and end-users [5]. A very interesting approach, similar to our work, is [6].…”

Section: Related Workmentioning

confidence: 83%

5G & SLAs: Automated proposition and management of agreements towards QoS enforcement

Kapassa

Touloupou

Mavrogiorgou

et al. 2018

2018 21st Conference on Innovation in Clouds, Internet and Networks and Workshops (ICIN)

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Efficient Service Level Agreements (SLA) management and anticipation of Service Level Objectives (SLO) breaches become mandatory to guarantee the required service quality in software-defined and 5G networks. To create an operational Network Service, it is highly envisaged to associate it with their network-related parameters that reflect the corresponding quality levels. These are included in policies but while SLAs target usually business users, there is a challenge for mechanisms that bridge this abstraction gap. In this paper, a generic black box approach is used to map high-level requirements expressed by users in SLAs to low-level network parameters included in policies, enabling Quality of Service (QoS) enforcement by triggering the required policies and manage the infrastructure accordingly. In addition, a mechanism for determining the importance of different QoS parameters is presented, mainly used for "relevant" QoS metrics recommendation in the SLA templates.

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Section: Related Workmentioning

confidence: 83%

5G & SLAs: Automated proposition and management of agreements towards QoS enforcement

Kapassa

Touloupou

Mavrogiorgou

et al. 2018

2018 21st Conference on Innovation in Clouds, Internet and Networks and Workshops (ICIN)

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“…In this paper, a performance model to estimate the response time and a pricing model for determining the price of a job execution is used. In recent cloud-related we have witnessed the emergence of a new category which is the mapping of SLA between Service Provider, Infrastructure Provider and end users [12]. A brief description, similar to our work, is presented in [8].…”

Section: Related Workmentioning

confidence: 99%

SLAs in 5G: A Complete Framework Facilitating VNF- and NS- Tailored SLAs Management

Kapassa

Touloupou

Kyriazis

2018

2018 32nd International Conference on Advanced Information Networking and Applications Workshops (WAINA)

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As the 5G technology is expected to impact the mobile network and associated ecosystems, appropriate guarantees for the service quality can maximize the ability of Virtual Network Functions (VNF) and Network Services (NS). This implies the utilization of Service Level Agreements (SLA) as a means to ensure that the NSs are provided in an efficient and controllable way. However, the complexity of determining resource provision policies in such multimodal environments as well as the characteristics and properties of various VNFs and NSs, results to custom SLAs that do not consider all aspects of the 5G environment. In this paper we propose an SLA Management framework to map high-level requirements expressed by users, to lowlevel resource network parameters to improve the service provider's ability to meet the corresponding SLA commitments. In addition, we consider a mechanism for dynamic SLA Templates generation with initial Service Level Objectives (SLO).

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“…It should be pointed out, that a preliminary description of our work can be found in [14,15,18], where the authors presented an approach for mapping the high-level end-user requirements the low-level policy parameters, and at the same time proposed a mechanism for suggesting the most important QoS parameters to the Service/Infrastructure Provider, in order to achieve better QoS assurance. In the present paper, we are going beyond an isolated SLA management framework, by trying to support business guarantees in the overall lifecycle of NSs.…”

Section: Slas and Qos Assurancementioning

confidence: 99%

Managing and Optimizing Quality of Service in 5G Environments Across the Complete SLA Lifecycle

Kapassa¹,

Touloupou²,

Stavrianos³

et al. 2019

Adv. sci. technol. eng. syst. j.

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The 5G is the fifth generation of mobile broadband, cellular technologies, and networks that promises a major change in mobility by evolving connected business realities. In such an emerging environment, reliable Service Level Agreements (SLA) and anticipation of breaches of Service Level Objectives (SLO) become compulsory. Thus, guaranteeing the required service quality, while also ensuring efficient recourse allocation becomes a challenge. In addition, 5G networks are expected to provide diverse Quality of Service (QoS) guarantees for a wide range of services, applications and users with a variety of requirements. However, there is an increased difficulty in translating user-friendly business terms into resource-specific monitoring attributes that can be used to manage resources in the 5G core network. To address these gaps, an SLA management framework, enabling QoS provisioning is introduced. The aforementioned framework will be supported by an adaptive monitoring algorithm, which removes the static time interval used in the monitoring system, in order to provide highly accurate information in real time, without the produce of unnecessary traffic to the network. The proposed architecture also incorporates a recommendation mechanism to determine the significance of various QoS parameters in order to ensure that relevant QoS metrics are included in the SLAs, using enriched metadata information from a Network Function Virtualization (NFV) Catalogue.

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Service level agreement (SLA) in Public Cloud environments: A Survey on the current enterprises adoption

Cited by 24 publications

References 17 publications

5G & SLAs: Automated proposition and management of agreements towards QoS enforcement

5G & SLAs: Automated proposition and management of agreements towards QoS enforcement

SLAs in 5G: A Complete Framework Facilitating VNF- and NS- Tailored SLAs Management

Managing and Optimizing Quality of Service in 5G Environments Across the Complete SLA Lifecycle

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