A Service-Oriented Approach for Dynamic Chaining of Virtual Network Functions over Multi-Provider Software-Defined Networks

Martini, B.; Paganelli, Federica

doi:10.3390/fi8020024

Cited by 37 publications

(20 citation statements)

References 27 publications

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“…This example requires: (i) Partial view of the capabilities of other ISPs (ability to select services and providers); (ii) Dynamically instantiate/select virtual resources (e.g. virtual routers and storage VMs); (iii) Ability to guarantee predetermined QoS levels across all the services composed to deliver a network function [106]; (iv) Monitor quality metrics and automatically re-configure the VNF, if needed.…”

Section: Edge and Fog Computingmentioning

confidence: 99%

“…Service oriented orchestrators for network functions have been proposed [132,106]. New techniques aim at integrating application information into orchestration decisions [113].…”

Section: Dynamismmentioning

confidence: 99%

“…These have simplified infrastructure configuration for data centre servers, storage, as well as core and edge networks. As a result, the infrastructure is able to [127,81,17] [ 42,140,153,100,164,163,132,131,116,170,70,156,44,95,79,107] [ 106,53,46,166,128,64] adapt to the needs of the services that run on it, making the interplay between the services and the infrastructure more dynamic and complex.…”

Section: Introductionmentioning

confidence: 99%

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Research challenges in nextgen service orchestration

Vaquero

Cuadrado

Elkhatib

et al. 2019

Future Generation Computer Systems

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Fog/edge computing, function as a service, and programmable infrastructures, like software-defined networking or network function virtualisation, are becoming ubiquitously used in modern Information Technology infrastructures. These technologies change the characteristics and capabilities of the underlying computational substrate where services run (e.g. higher volatility, scarcer computational power, or programmability). As a consequence, the nature of the services that can be run on them changes too (smaller codebases, more fragmented state, etc.). These changes bring new requirements for service orchestrators, which need to evolve so as to support new scenarios where a close interaction between service and infrastructure becomes essential to deliver a seamless user experience. Here, we present the challenges brought forward by this new breed of technologies and where current orchestration techniques stand with regards to the new challenges. We also present a set of promising technologies that can help tame this brave new world.

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Section: Edge and Fog Computingmentioning

confidence: 99%

“…Service oriented orchestrators for network functions have been proposed [132,106]. New techniques aim at integrating application information into orchestration decisions [113].…”

Section: Dynamismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research challenges in nextgen service orchestration

Vaquero

Cuadrado

Elkhatib

et al. 2019

Future Generation Computer Systems

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“…The authors note that when designing applications, it is necessary to use the service principles of abstraction and autonomy, however, the article does not specify how these principles can be actually employed at the stage of collecting requirements to the system to be designed. Paper [9] explores the ways the SOA, NFV and SDN can complement each other in the implementation of various functions of the information system, through specifying the composition of IT-services, IT-services selection, IT-services provision and the deployment tasks.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Development of a model for determining the alignment of it-services of the information system with the end-user requirements

Левыкин

Iuriev

2017

EEJET

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4be interconnected, which requires that company managers pay maximum attention to the organization and operation of the infrastructure.The functionality of IT-service involves a large number of functions of the IT as a service department. At the stage of IT-service planning, functionality is aligned to the strategy, standards and plans within the framework of strategic functions of the IT-service. Finally, at the stage of IT-service operation, the functionality is provided by data and equipment management, systems software and support of end-users [2,3]. The respective functions of IT-service make it possible to take into account the costs, related to the IT-service support, as well as compliance with conditions, agreements between a customer and the IT-service. Service time, availability, reliability, and efficiency of the IT-service are defined in the course of negotiating an agreement with requirements to the IT-service with a customer and are subsequently controlled by the monitoring functions. These parameters are provided by the functions of end-user support and data and equipment management, as well as systems software. Data on the efficiency of operations, significant for end-user, can be retrieved based on the statistics about using the applied systems. Given this, one can see that the characteristics of IT-service directly depend on the functional requirements from end-users. 4  V. Levykin, I. Iuriev, 2017 , , , , , . z z z

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“…The eighth paper-by Martini and Paganelli [8]-is concerned with emerging network technologies based on the paradigms of software-defined networks (SDN) and network function virtualization (NFV), which are aimed at enhancement of network operation flexibility and cost reduction. Such an evolution is particularly relevant for the current roadmap of the 5G network and for its impact in smart city contexts.…”

mentioning

confidence: 99%

Ecosystemic Evolution Fed by Smart Systems

Giuli¹

2018

Future Internet

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Information Society is advancing along a route of ecosystemic evolution. ICT and Internet advancements, together with the progression of the systemic approach for enhancement and application of Smart Systems, are grounding such an evolution. The needed approach is therefore expected to evolve by increasingly fitting into the basic requirements of a significant general enhancement of human and social well-being, within all spheres of life (public, private, professional). This implies enhancing and exploiting the net-living virtual space, to make it a virtuous beneficial integration of the real-life space. Meanwhile, contextual evolution of smart cities is aiming at strongly empowering that ecosystemic approach by enhancing and diffusing net-living benefits over our own lived territory, while also incisively targeting a new stable socio-economic local development, according to social, ecological, and economic sustainability requirements. This territorial focus matches with a new glocal vision, which enables a more effective diffusion of benefits in terms of well-being, thus moderating the current global vision primarily fed by a global-scale market development view.Basic technological advancements have thus to be pursued at the system-level. They include system architecting for virtualization of functions, data integration and sharing, flexible basic service composition, and end-service personalization viability, for the operation and interoperation of smart systems, supporting effective net-living advancements in all application fields. Increasing and basically mandatory importance must also be increasingly reserved for human-technical and social-technical factors, as well as to the associated need of empowering the cross-disciplinary approach for related research and innovation. The prospected eco-systemic impact also implies a social pro-active participation, as well as coping with possible negative effects of net-living in terms of social exclusion and isolation, which require incisive actions for a conformal socio-cultural development. In this concern, speed, continuity, and expected long-term duration of innovation processes, pushed by basic technological advancements, make ecosystemic requirements stricter. This evolution requires also a new approach, targeting development of the needed basic and vocational education for net-living, which is to be considered as an engine for the development of the related 'new living know-how', as well as of the conformal 'new making know-how'.The papers of the special issue are significant contributions samples within the general ecosystemic view above highlighted. The first group of papers ([1-5]) pertain the focus on human and social factors through interdisciplinary and transdisciplinary approaches, which look for enhancing quality of life supported by the smart system environment.The second group of papers ([6-9]) pertains to some relevant technological infrastructure enhancements, based on exploitation of the Internet of Things the 5G network paradigms.Several contrib...

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A Service-Oriented Approach for Dynamic Chaining of Virtual Network Functions over Multi-Provider Software-Defined Networks

Cited by 37 publications

References 27 publications

Research challenges in nextgen service orchestration

Research challenges in nextgen service orchestration

Development of a model for determining the alignment of it-services of the information system with the end-user requirements

Ecosystemic Evolution Fed by Smart Systems

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