A network service development kit supporting the end-to-end lifecycle of NFV-based telecom services

Rossem, Steven Van; Peuster, Manuel; Conceição, Luís; Kouchaksaraei, Hadi Razzaghi; Tavernier, Wouter; Colle, Didier; Pickavet, Mario; Demeester, Piet

doi:10.1109/nfv-sdn.2017.8169859

Cited by 13 publications

(12 citation statements)

References 3 publications

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“…SLA management is a dynamic process comprising four key stages: a) Architecture, b) Engagement, c) Operations and d) Termination as presented in Figure 1. The overall lifecycle is 5G-enabled, due to the fact that is fully aligned with 5G principles and is running in parallel with Network Service Lifecycle [55].…”

Section: The Challenges Of 5g and Slasmentioning

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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Section: The Challenges Of 5g and Slasmentioning

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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“…5. Using the automated profiling features demonstrated in [13], the throughput of the Cache VNF is tested under increasing CPU resource allocation. After statistically analyzing the time-series data, the SDK generates a more comprehensible way to describe the performance of the VNF.…”

Section: Sdk Use-case: Horizontal and Vertical Scalingmentioning

confidence: 99%

Introducing Development Features for Virtualized Network Services

et al. 2018

Self Cite

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Network virtualization and softwarizing network functions, are trends aiming at higher network efficiency, cost reduction and agility. They are driven by the evolutions in Software Defined Networking (SDN) and Network Function Virtualization (NFV). This shows that software will play an increasingly important role within telecommunication services, which were previously dominated by hardware appliances. Service providers can benefit from this, as it enables a faster introduction of new telecom services, combined with an agile set of possibilities to optimize and fine-tune their operations. However, the provided telecom services can only evolve if the adequate software tools are available. In this article, we explain how the development, deployment and maintenance of such an SDN/NFV-based telecom service puts specific requirements on the platform providing it. A Software Development Kit (SDK) is introduced, allowing service providers to adequately design, test and evaluate services before they are deployed in production and also update them during their lifetime. This continuous cycle between development and operations, a concept known as DevOps, is a well-known strategy in software development. To extend its context further to SDN/NFV-based services, the functionalities provided by traditional cloud platforms are not yet sufficient. By giving an overview of the currently available tools and their limitations, the gaps in DevOps for SDN/NFV services are highlighted. The benefit of such an SDK is illustrated by a secure content delivery network service (enhanced with deep packet inspection and elastic routing capabilities). With this use-case, the dynamics between developing and deploying a service are further illustrated.

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“…On the other hand, the QoS and resource requirements of services vary greatly in different scenarios [Chernyshev, Baig, Bello et al (2017)]. Some of them even have extremely high priority and need to be done without considering QoS and resource requirements [Yousaf, Bredel, Schaller et al (2017); Rossem, Tavernier, Sonkoly et al (2015); Rossem, Peuster, Conceicao et al (2017); David and Lin (2018)].…”

Section: Introductionmentioning

confidence: 99%

QoS-Aware and Resource-Efficient Dynamic Slicing Mechanism for Internet of Things

He¹,

Guo²,

Liang³

et al. 2019

Computers, Materials &Amp; Continua

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With the popularization of terminal devices and services in Internet of things (IoT), it will be a challenge to design a network resource allocation method meeting various QoS requirements and effectively using substrate resources. In this paper, a dynamic network slicing mechanism including virtual network (VN) mapping and VN reconfiguration is proposed to provide network slices for services. Firstly, a service priority model is defined to create queue for resource allocation. Then a slice including Virtual Network Function (VNF) placement and routing with optimal cost is generated by VN mapping. Next, considering temporal variations of service resource requirements, the size of network slice is adjusted dynamically to guarantee resource utilization in VN reconfiguration. Additionally, load balancing factors are designed to make traffic balanced. Simulation results show that dynamic slicing mechanism not only saves 22% and 31% cost than static slicing mechanism with extending shortest path (SS_ESP) and dynamic slicing mechanism with embedding single path (DS_ESP), but also maintains high service acceptance rate.

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A network service development kit supporting the end-to-end lifecycle of NFV-based telecom services

Cited by 13 publications

References 3 publications

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

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

Introducing Development Features for Virtualized Network Services

QoS-Aware and Resource-Efficient Dynamic Slicing Mechanism for Internet of Things

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