Relevant bibliographies by topics / Network Functions Virtualization (NFV)

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Network Functions Virtualization (NFV)'

Author: Grafiati
Published: 4 June 2021
Last updated: 20 June 2025

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Journal articles on the topic "Network Functions Virtualization (NFV)"

1

Vilalta, Ricard, Raül Muñoz, Arturo Mayoral, et al. "Transport Network Function Virtualization." Journal of Lightwave Technology 33, no. 5 (2015): 1–8. https://doi.org/10.5281/zenodo.47262.

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In this paper, we present a network function virtualization (NFV) architecture to deploy different virtualized network functions (VNF) on an optical transport network. NFV concepts do not only apply to data plane functions (i.e., packet processing or forwarding), but also to control plane functions, such as path computation. First, we focus on the IT and network resources that are virtualized to provide the required VNFs. Second, we provide an example of VNF on top of the virtualized infrastructure, by proposing a path computation element (PCE) architecture to deploy a PCE by means of NFV. The instances of the virtualized PCE are deployed on demand, but they are perceived as a single-network element. We present the benefits of such approach by providing experimental validation.
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Jawdhari, Hayder A., and Alharith A. Abdullah. "The Application of Network Functions Virtualization on Different Networks, and its New Applications in Blockchain: A Survey." Webology 18, Special Issue 04 (2021): 1007–44. http://dx.doi.org/10.14704/web/v18si04/web18179.

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Operators of networks are striving to provide functional network-based services, while keeping the cost of deploying the service to a minimum. Network Function Virtualization (NFV) is considered to be a promising model to modify such employment by separating network functions from the basic hardware properties, after which they are converted into the style of software. These are eventually referred to as Virtual Network Functions (VNFs). This separation offers numerous benefits, including the decrease of Capital Expenditure (CAPEX) and Operation Expense (OPEX), in addition to the enhanced elasticity of service preparation. Network Functions Virtualization (NFV) is found to cause a remarkable development or even a technological revolution in terms of network-based services, leading to a decrease in deployment costs for network operators. NFV reduces hardware tool costs and energy exhaustion, and it improves its operational performance whereby the network configuration is part of this optimization. Even so, there are a number of possible security problems which are the main focus in NFV. The present study surveys the applications and opportunities of NFV in terms of IoT, SDN, cloud computing and blockchain. A description of the NFV architecture is presented, and several possibilities of NFV security issues and challenges are discussed. Finally, a systematic idea is provided on the design of a Blockchain Network Virtualization System.
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DJOMI, MANZILA IZNIARDI, RENDY MUNADI, and RIDHA MULDINA NEGARA. "Analisis Performansi Layanan FTP danVideo Streaming berbasis Network Function Virtualization menggunakan Docker Containers." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 6, no. 2 (2018): 180. http://dx.doi.org/10.26760/elkomika.v6i2.180.

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ABSTRAKInfrastruktur jaringan seperti router, secara tradisional menggunakan hardware yang bersifat proprietary. Teknologi virtualisasi pada fungsi jaringan atau NFV (Network Function Virtualization) membuat layanan ini dapat diimplementasikan sebagai aplikasi perangkat lunak yang dapat dijalankan di lingkungan virtual atau Virtualized Network Functions (VNFs). Selain menggunakan hypervisor (hardware-level virtualization), teknologi virtualisasi memiliki alternatif pengimplementasian dengan menggunakan teknologi containers (Operating system -level virtualization), salah satunya menggunakan Docker. Penelitian ini mengimplementasikan layanan FTP dan video streaming pada jaringan NFV di Docker Containers. Tanpa backgound traffic, layanan menunjukkan performansi QoS yang memenuhi standarisasi ITU-T G.1010 dengan delay FTP 0,12 ms dan delay video streaming 6,21 ms serta nilai packet loss kedua layanan sebesar 0%. Penggunaan CPU pada Docker ketika layanan dijalankan dibawah 1 %. Kata kunci: Virtualisasi, Containers, Docker, Network Function Virtualization, QoSABSTRACTNetwork infrastructure such as routers, traditionally using proprietary hardware. Virtualization technology on network function or NFV (Network Function Virtualization) makes this service can be implemented as a software application that can run in virtual environment or Virtualized Network Functions (VNFs). In addition to using hypervisor (hardware-level virtualization), virtualization technology has an alternative implementation using containers technology (Operating system-level virtualization), one of them using Docker. This research implements FTP and video streaming services on NFV networks in Docker Containers. Without background traffic, the service demonstrates QoS performance that meets the ITU-T G.1010 standardization with 0.12 ms FTP delay and 6.21 ms video streaming delay and with packet loss value of both services at 0%. CPU usage on Docker when service runs below 1%.Keywords: Virtualization, Containers, Docker, Network Function Virtualization, QoS
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Parmanand, Prabha, and Umar Syed. "Network Functions Virtualization: Challenges and Opportunities for Innovations." International Journal of Innovative Technology and Exploring Engineering 10, no. 5 (2021): 64–69. http://dx.doi.org/10.35940/ijitee.d8483.0310521.

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Network Functions Virtualization (NFV) was at the latest introduced to reform the suppleness of mechanism handling provisional and extenuate stress the time to bazaar of new handling. By leveraged virtualization processing and mercantile off-the recess schedule hardware, such as obscure motivation handling, store and button, NFV the software execution of mechanism festival and features from the basic hardware. As an supervene processing, NFV fetch diverse defiance to mechanism manipulator, such as the warranty of mechanism execution for factual appliance, their movable appliance and dwelling abroad, and their verseed placing. In this document, we bestow a concise inspection supervision of NFV, decode its Importance analysis and architectonic structure, current handling use location and debate the defiance and pending quarter for use in this investigation domain.
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5

Parmanand, Prabhat, and Syed Umar. Dr. "Network Functions Virtualization: Challenges and Opportunities for Innovations." International Journal of Innovative Technology and Exploring Engineering (IJITEE) 10, no. 5 (2021): 64–69. https://doi.org/10.35940/ijitee.D8483.0310521.

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Network Functions Virtualization (NFV) was at the latest introduced to reform the suppleness of mechanism handling provisional and extenuate stress the time to bazaar of new handling. By leveraged virtualization processing and mercantile off-the recess schedule hardware, such as obscure motivation handling, store and button, NFV the software execution of mechanism festival and features from the basic hardware. As an supervene processing, NFV fetch diverse defiance to mechanism manipulator, such as the warranty of mechanism execution for factual appliance, their movable appliance and dwelling abroad, and their verseed placing. In this document, we bestow a concise inspection supervision of NFV, decode its Importance analysis and architectonic structure, current handling use location and debate the defiance and pending quarter for use in this investigation domain.
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6

Kovalenko, V., A. A. Alzaghir, and A. Muthanna. "Building a UAV network with support for SDN / NFV technologies." Telecom IT 8, no. 3 (2020): 71–85. http://dx.doi.org/10.31854/2307-1303-2020-8-3-71-85.

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Research Subject - integration of software-defined networks (SDN) and network functions virtualization (NFV) technologies in the unmanned aerial vehicle networks. Method – analysis of standards and recommendations in the field of SDN, NFV technologies and construction of UAV networks. Core results – presents the main advantages of introducing SDN and NFV technologies into the UAV networks, two ways of organizing the UAV network architecture with SDN technology support: when the Base Station performs the functions of an SDN controller, and when air baluns are used as SDN controllers. This paper also compared the technologies of software-defined networking and virtualization of network functions. Practical relevance – this paper provides a detailed description of the structure and application possibilities of UAV networks, functional diagrams of SDN and NFV. The network architectures presented in this paper using SDN controllers in the flying (air balloon) and ground (Base stations) segment are examples of the implementation of SDN technology in a UAV network.of SDN and NFV technologies, and also considers the application of these technologies in UAV networks.
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Venâncio, Giovanni, Rogério C. Turchetti, and Elias Procópio Duarte Jr. "NFV-COIN: Unleashing The Power of In-Network Computing with Virtualization Technologies." Journal of Internet Services and Applications 12, no. 1 (2022): 46–53. http://dx.doi.org/10.5753/jisa.2022.2342.

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Network Functions Virtualization (NFV) allows the implementation in software of middleboxes traditionally available as specialized hardware. Network services can be implemented as SFCs (Service Function Chains) based onvirtualization technologies that run on commodity hardware. Although most virtualized functions have classic middlebox functionalities (e.g. firewalls or intrusion detectors) NFV technology can be used to leverage the networkto provide novel types of services to end-users. Actually, NFV can be very convenient to deploy traditional enduser services in the network, in the paradigm that has been called Computing In the Network (COIN). This articlediscusses the requirements to deploy COIN services using NFV technologies, which we call NFV-COIN. We alsopresent case studies and an NFV-COIN architecture that is compliant with the NFV-MANO reference model.
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Muñoz, Raül, Ricard Vilalta, Ramon Casellas, et al. "Integrated SDN/NFV management and orchestration architecture for dynamic deployment of virtual SDN control instances for virtual tenant networks." Journal of Optical Communications and Networking 7, no. 11 (2015): B62—B70. https://doi.org/10.5281/zenodo.46115.

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Software-defined networking (SDN) and network function virtualization (NFV) have emerged as the most promising candidates for improving network function and protocol programmability and dynamic adjustment of network resources. On the one hand, SDN is responsible for providing an abstraction of network resources through well-defined application programming interfaces. This abstraction enables SDN to perform network virtualization, that is, to slice the physical infrastructure and create multiple coexisting application-specific virtual tenant networks (VTNs) with specific quality-of-service and service-level-agreement requirements, independent of the underlying optical transport technology and network protocols. On the other hand, the notion of NFV relates to deploying network functions that are typically deployed in specialized and dedicated hardware, as software instances [called virtual network functions (VNFs)] running on commodity servers (e.g., in data centers) through software virtualization techniques. Despite all the attention that has been given to virtualizing IP functions (e.g., firewall; authentication, authorization, and accounting) or Long-Term Evolution control functions (e.g., mobility management entity, serving gateway, and packet data network gateway), some transport control functions can also be virtualized and moved to the cloud as a VNF. In this work we propose virtualizing the tenant SDN control functions of a VTN and moving them into the cloud. The control of a VTN is a key requirement associated with network virtualization, since it allows the dynamic programming (i.e., direct control and configuration) of the virtual resources allocated to the VTN. We experimentally assess and evaluate the first SDN/NFV orchestration architecture in a multipartner testbed to dynamically deploy independent SDN controller instances for each instantiated VTN and to provide the required connectivity within minutes.
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Elagin, Vasily S., Alexander V. Bogachev, and Ilya A. Belozertsev. "Modeling the estimation of end-to-end packet latency for a chain of NFV nodes in 5G networks." T-Comm 16, no. 3 (2022): 23–30. http://dx.doi.org/10.36724/2072-8735-2022-16-3-23-30.

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It is expected that future communication networks will provide configurable delay-sensitive types of services (for example, streaming video, machine interaction). To support a variety of applications and use cases of servers providing various functions, you can use network function virtualization (NFV), which will be able to provide flexible implementation and placement of configuration of the necessary network functions. This article analyzes the end-to-end packet latency (E2E) for multiple traffic flows passing through the chain of embedded virtual network functions (VNF) in fifth-generation communication networks (5G). The Dominant of Generalized Resource Processing (DR-GPS) is used to distribute computing resources and transfer data between threads in each node of Network Function Virtualization (NFV) to achieve equitable distribution and utilization of available resources. The tandem queuing model is designed for incoming packets combined in several streams passing through the NFV node and its outgoing transmission channel. To analyze manageability, we separate packet processing (and transmission) of various streams in the simulation and determine the average packet processing and transmission rates of each stream as approximate service speeds.
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Femminella, Mauro, and Gianluca Reali. "Implementing Internet of Things Service Platforms with Network Function Virtualization Serverless Technologies." Future Internet 16, no. 3 (2024): 91. http://dx.doi.org/10.3390/fi16030091.

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The need for adaptivity and scalability in telecommunication systems has led to the introduction of a software-based approach to networking, in which network functions are virtualized and implemented in software modules, based on network function virtualization (NFV) technologies. The growing demand for low latency, efficiency, flexibility and security has placed some limitations on the adoption of these technologies, due to some problems of traditional virtualization solutions. However, the introduction of lightweight virtualization approaches is paving the way for new and better infrastructures for implementing network functions. This article discusses these new virtualization solutions and shows a proposal, based on serverless computing, that uses them to implement container-based virtualized network functions for the delivery of advanced Internet of Things (IoT) services. It includes open source software components to implement both the virtualization layer, implemented through Firecracker, and the runtime environment, based on Kata containers. A set of experiments shows that the proposed approach is fast, in order to boost new network functions, and more efficient than some baseline solutions, with minimal resource footprint. Therefore, it is an excellent candidate to implement NFV functions in the edge deployment of serverless services for the IoT.
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Dissertations / Theses on the topic "Network Functions Virtualization (NFV)"

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Sällberg, Kristian. "A Data Model Driven Approach to Managing Network Functions Virtualization : Aiding Network Operators in Provisioning and Configuring Network Functions." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171233.

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This master’s thesis explains why certain network services are difficult to provision and configure using IT automation and cloud orchestration software. An improvement is proposed and motivated. This proposed improvement enables network operators to define a set of data models describing how to provision and interconnect a set of Virtual Network Functions (VNFs) (and possibly existing physical network functions) to form networks. Moreover, the proposed solution enables network operators to change the configuration at runtime. The work can be seen as a step towards self managing and auto scaling networks. The proposed approach is compared to a well known cloud management system (OpenStack) in order to evaluate if the proposed approach decreases the amount of time needed for network operators to design network topologies and services containing VNFs. Data is collected through observations of network operators, interviews, and experiment. Analysis of this data shows that the proposed approach can decrease the amount of time required for network operators to design network topologies and services. This applies if the network operators are already acquainted with the data modeling language YANG. The amount of time required to provision VNFs so that they respond to connections can also be decreased using the proposed approach. The proposed approach does not offer as much functionality as OpenStack, as it is limited to VNF scenarios.<br>Denna masteruppsats förklarar varför vissa nätverkstjänster är svåra att skapa och konfigurera med IT-automationsverktyg och mjukvara för molnorkestrering.  En förbättring föreslås och motiveras. Den föreslagna förbättringen tillåter nätverksoperatörer att definiera en mängd datamodeller, för att beskriva hur Virtuella Nätverksfunktioner (VNF:er) skall instantieras och kopplas ihop till nätverkstjänster. Dessutom tillåter lösningen nätverksoperatörer att ändra konfiguration under tiden nätverken hanterar trafik.  Arbetet kan ses som ett steg mot självhanterande och automatiskt skalande nätverk. Den föreslagna lösningen jämförs med ett välkänt molnorkestreringsverktyg (OpenStack) för att utvärdera om den föreslagna lösningen sänker mängden tid som nätverksoperatörer behöver för att designa nätverkstopologier och tjänster som innehåller VNF:er. Data samlas in genom observationer av nätverksoperatörer, intervjuer, och experiment. Analys av datan visar att den föreslagna lösningen kan minska tiden som behövs för att designa nätverkstopologier och tjänster. Fallen där detta är applicerbart, är när VNF:er närvarar i nätverk. Dessa är enklare att skapa, konfigurera, och ändra under tiden de exekverar, med den föreslagna metoden. Detta kräver också att nätverksoperatören är bekant med datamodelleringsspråket YANG. Tiden det tar att provisionera VNF:er, tills dess att de svarar till anslutningar, kan sänkas med hjälp av den föreslagna metoden. Den förslagna metoden erbjuder väsentligt begränsad funktionalitet jämfört med OpenStack, den fokuserar på att hantera VNF:er.
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Cho, Daewoong. "Network Function Virtualization (NFV) Resource Management For Low Network Latency." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17256.

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NFV is an emerging network architecture to increase flexibility and agility within operator's networks by placing virtualized services on demand in Cloud data centers (CDCs). One of the main challenges for the NFV environment is how to efficiently allocate Virtual Network Functions (VNFs) to Virtual Machines (VMs) and how to minimize network latency in the rapidly changing network environments. Although a significant amount of work/research has been already conducted for the generic VNF placement problem and VM migration for efficient resource management in CDCs, network latency among various network components and VNF migration problem have not been comprehensively considered yet to the best of our knowledge. Firstly, to address VNF placement problem, we design a more comprehensive model based on real measurements to capture network latency among VNFs with more granularity to optimize placement of VNFs in CDCs. We consider resource demand of VNFs, resource capacity of VMs and network latency among various network components. Our objectives are to minimize both network latency and lead time (the time to find a VM to host a VNF). Experimental results are promising and indicate that our approach, namely VNF Low-Latency Placement (VNF-LLP), can reduce network latency by up to 64.24% compared with two generic algorithms. Furthermore, it has a lower lead time as compared with the VNF Best-Fit Placement algorithm. Secondly, to address VNF migration problem, we i) formulate the VNF migration problem and ii) develop a novel VNF migration algorithm called VNF Real-time Migration (VNF-RM) for lower network latency in dynamically changing resource availability. As a result of experiments, the effectiveness of our algorithm is demonstrated by reducing network latency by up to 59.45% after latency-aware VNF migrations.
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Gao, Meihui. "Models and Methods for Network Function Virtualization (NFV) Architectures." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0025/document.

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Avec la croissance exponentielle des demandes de service, les opérateurs ont déployé de nombreux équipements, et par conséquent, la gestion du réseau est devenue de plus en plus difficile et coûteuse. La virtualisation des fonctions réseau (NFV) a été proposée comme un nouveau paradigme pour réduire les coûts liés à l’acquisition et à la maintenance pour les réseaux de télécommunications. Dans ce travail de thèse, nous nous intéressons aux problèmes du chaînage des fonctions virtuelles (VNFs) qui combinent des décisions de localisation des VNFs et de routage des demandes. D'un point de vue d'optimisation, ce problème est une combinaison des problèmes de localisation (pour la partie d'installation des VNFs) et de conception de réseaux (pour la partie de routage). Ces deux problèmes ont été largement étudié dans la littérature. Cependant, leur combinaison représente des divers challenges en termes de modélisation et de résolution. Dans la première partie de cette thèse, nous considérons une version réaliste du problème du chaînage des VNFs (VNF-PR) afin de comprendre l'impact des différents aspects sur les coûts et les performances de gestion du réseau. Dans ce but, nous étendons le travail dans~\cite{Addis2015} en considérant des caractéristiques et des contraintes plus réalistes des infrastructures NFV et nous proposons un modèle de programmation linéaire et une heuristique mathématique pour le résoudre. Dans le but de mieux comprendre la structure du problème et ses propriétés, la deuxième partie de la thèse est orientée vers l'étude théorique du problème, où nous avons étudié une version compacte du problème du chaînage des VNFs. Nous fournissons des résultats sur la complexité de calcul sous divers cas de topologie et de capacité. Ensuite, nous proposons deux modèles et nous les testons sur un testbed avec plus de 100 instances différentes avec différents cas de capacité. Au final, nous abordons la scalabilité du problème en proposant des méthodes constructives et des méthodes heuristiques basées sur la programmation linéaire entière pour traiter efficacement des instances de taille grande (jusqu'à 60 nœuds et 1800 demandes). Nous montrons que les heuristiques proposées sont capables de résoudre efficacement des instances de taille moyenne (avec jusqu'à 30 nœuds et 1 000 demandes) de cas de capacité difficiles et de trouver de bonnes solutions pour les instances dures, où le modèle ne peut fournir aucune solution avec un temps de calcul limité<br>Due to the exponential growth of service demands, telecommunication networks are populated with a large and increasing variety of proprietary hardware appliances, and this leads to an increase in the cost and the complexity of the network management. To overcome this issue, the NFV paradigm is proposed, which allows dynamically allocating the Virtual Network Functions (VNFs) and therefore obtaining flexible network services provision, thus reducing the capital and operating costs. In this thesis, we focus on the VNF Placement and Routing (VNF-PR) problem, which aims to find the location of the VNFs to allocate optimally resources to serve the demands. From an optimization point of view, the problem can be modeled as the combination of a facility location problem (for the VNF location and server dimensioning) and a network design problem (for the demands routing). Both problems are widely studied in the literature, but their combination represents, to the best of our knowledge, a new challenge. We start working on a realistic VNF-PR problem to understand the impact of different policies on the overall network management cost and performance. To this end, we extend the work in [1] by considering more realistic features and constraints of NFV infrastructures and we propose a linear programming model and a math-heuristic to solve it. In order to better understand the problem structure and its properties, in the second part of our work, we focus on the theoretical study of the problem by extracting a simplified, yet significant variant. We provide results on the computational complexity under different graph topology and capacity cases. Then, we propose two mathematical programming formulations and we test them on a common testbed with more than 100 different test instances under different capacity settings. Finally, we address the scalability issue by proposing ILP-based constructive methods and heuristics to efficiently deal with large size instances (with up to 60 nodes and 1800 demands). We show that our proposed heuristics can efficiently solve medium size instances (with up to 30 nodes and 1000 demands) of challenging capacity cases and provide feasible solutions for large size instances of the most difficult capacity cases, for which the models cannot find any solution even with a significant computational time
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Gao, Meihui. "Models and Methods for Network Function Virtualization (NFV) Architectures." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0025.

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Avec la croissance exponentielle des demandes de service, les opérateurs ont déployé de nombreux équipements, et par conséquent, la gestion du réseau est devenue de plus en plus difficile et coûteuse. La virtualisation des fonctions réseau (NFV) a été proposée comme un nouveau paradigme pour réduire les coûts liés à l’acquisition et à la maintenance pour les réseaux de télécommunications. Dans ce travail de thèse, nous nous intéressons aux problèmes du chaînage des fonctions virtuelles (VNFs) qui combinent des décisions de localisation des VNFs et de routage des demandes. D'un point de vue d'optimisation, ce problème est une combinaison des problèmes de localisation (pour la partie d'installation des VNFs) et de conception de réseaux (pour la partie de routage). Ces deux problèmes ont été largement étudié dans la littérature. Cependant, leur combinaison représente des divers challenges en termes de modélisation et de résolution. Dans la première partie de cette thèse, nous considérons une version réaliste du problème du chaînage des VNFs (VNF-PR) afin de comprendre l'impact des différents aspects sur les coûts et les performances de gestion du réseau. Dans ce but, nous étendons le travail dans~\cite{Addis2015} en considérant des caractéristiques et des contraintes plus réalistes des infrastructures NFV et nous proposons un modèle de programmation linéaire et une heuristique mathématique pour le résoudre. Dans le but de mieux comprendre la structure du problème et ses propriétés, la deuxième partie de la thèse est orientée vers l'étude théorique du problème, où nous avons étudié une version compacte du problème du chaînage des VNFs. Nous fournissons des résultats sur la complexité de calcul sous divers cas de topologie et de capacité. Ensuite, nous proposons deux modèles et nous les testons sur un testbed avec plus de 100 instances différentes avec différents cas de capacité. Au final, nous abordons la scalabilité du problème en proposant des méthodes constructives et des méthodes heuristiques basées sur la programmation linéaire entière pour traiter efficacement des instances de taille grande (jusqu'à 60 nœuds et 1800 demandes). Nous montrons que les heuristiques proposées sont capables de résoudre efficacement des instances de taille moyenne (avec jusqu'à 30 nœuds et 1 000 demandes) de cas de capacité difficiles et de trouver de bonnes solutions pour les instances dures, où le modèle ne peut fournir aucune solution avec un temps de calcul limité<br>Due to the exponential growth of service demands, telecommunication networks are populated with a large and increasing variety of proprietary hardware appliances, and this leads to an increase in the cost and the complexity of the network management. To overcome this issue, the NFV paradigm is proposed, which allows dynamically allocating the Virtual Network Functions (VNFs) and therefore obtaining flexible network services provision, thus reducing the capital and operating costs. In this thesis, we focus on the VNF Placement and Routing (VNF-PR) problem, which aims to find the location of the VNFs to allocate optimally resources to serve the demands. From an optimization point of view, the problem can be modeled as the combination of a facility location problem (for the VNF location and server dimensioning) and a network design problem (for the demands routing). Both problems are widely studied in the literature, but their combination represents, to the best of our knowledge, a new challenge. We start working on a realistic VNF-PR problem to understand the impact of different policies on the overall network management cost and performance. To this end, we extend the work in [1] by considering more realistic features and constraints of NFV infrastructures and we propose a linear programming model and a math-heuristic to solve it. In order to better understand the problem structure and its properties, in the second part of our work, we focus on the theoretical study of the problem by extracting a simplified, yet significant variant. We provide results on the computational complexity under different graph topology and capacity cases. Then, we propose two mathematical programming formulations and we test them on a common testbed with more than 100 different test instances under different capacity settings. Finally, we address the scalability issue by proposing ILP-based constructive methods and heuristics to efficiently deal with large size instances (with up to 60 nodes and 1800 demands). We show that our proposed heuristics can efficiently solve medium size instances (with up to 30 nodes and 1000 demands) of challenging capacity cases and provide feasible solutions for large size instances of the most difficult capacity cases, for which the models cannot find any solution even with a significant computational time
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5

Franco, Muriel Figueredo. "Interactive visualizations for management of NFV-enabled networks." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/158202.

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A Virtualização de Funções de Rede (Network Functions Virtualization - NFV) está mudando o paradigma das redes de telecomunicações. Esta nova tecnologia permite diversas oportunidades de inovações e possibilita o desenvolvimento de novos modelos de negócio. Em relação às redes NFV, os provedores de serviços têm a oportunidade de criar modelos de negócio que permitam aos clientes contratarem Funções de Rede Virtualizadas (Virtual Network Functions - VNFs) que proveem diferentes serviços de rede (e.g., Firewall, NAT e transcoders). Porém, nestes modelos, a quantidade de informações a serem gerenciadas cresce rapidamente. Baseado nisso, os operadores de rede devem ser capazes de entender e manipular uma grande quantidade de informação para gerenciar, de forma efetiva, as redes NFV. Para enfrentar esse problema, introduzimos uma plataforma de visualização denominada VISION, a qual tem como principal objetivo ajudar os operadores de rede na identificação da causa raiz de problemas em NFV. Para isso, propusemos: (i) uma abordagem para coleta e organização de dados do ambiente NFV gerenciado; (ii) cinco diferentes visualizações que auxiliam nas tarefas de gerenciamento de NFV como, por exemplo, no processo de identificação de problemas em VNFs e no planejamento de negócios e (iii) um modelo baseado em templates que suporta o desenvolvimento e o reuso de visualizações. Para fins de avaliação desta dissertação, foi desenvolvido um protótipo da plataforma VISION e de todas as visualizações propostas. Após, conduzimos um conjunto de casos de estudo para prover evidências sobre a viabilidade e utilidade de nossas visualizações. Os diferentes casos analisados, abordam por exemplo, a identificação de problemas na alocação de VNFs que estão impactando no desempenho do serviço oferecido e também na investigação de prioridades de investimento para suprir as demandas dos clientes da rede. Por fim, apresentamos uma avaliação de usabilidade realizada juntamente a especialistas em redes de computadores para avaliar os recursos e benefícios da plataforma VISION. Os resultados obtidos demonstram que nossas visualizações possibilitam ao operador de rede um rápido e fácil acesso às informações importantes para o gerenciamento de redes NFV, assim facilitando a obtenção de insights para a identificação de problemas complexos no contexto de redes NFV. Além disso, os resultados demonstram uma avaliação positiva por especialistas sobre os aspectos gerais de usabilidade do protótipo desenvolvido.<br>Network Functions Virtualization (NFV) is driving a paradigm shift in telecommunications networks and computer networks, by fostering new business models and creating innovation opportunities. In NFV-enabled networks, service providers have the opportunity to build a business model where tenants can purchase Virtual Network Functions (VNFs) that provide distinct network services and functions (e.g., Firewall, NAT, and transcoders). However, the amount of managed data grows in a fast pace. The network operator must understand and manipulate many data to effectively manage the network. To tackle this problem, we introduce VISION, a platform based on visualizations techniques to help network operators to determine the cause of not obvious problems. For this, we provide: (i) an approach to collect and organize data from the NFV environments; (ii) five distinct visualizations that can aid in NFV management tasks, such as in the process of identifying VNFs problems and planning of NFV-enabled businesses; and (iii) a template model that supports new visualization applications. To evaluate our work, we implemented a prototype of VISION platform and each of the proposed visualizations. We then conducted distinct case studies to provide evidence of the feasibility of our visualizations. These case studies cover different scenarios, such as the identification of misplacement of VNFs that are generating bottlenecks in a forwarding graph and the investigation of investment priorities to supply tenants demands. Finally, we present a usability evaluation with network operators to indicate the benefits of the VISION platform. The results obtained show that our visualizations allow the operator to access relevant information and have insights to identify not obvious problems in the context of NFV-enabled networks. In addition, we received positive feedback about general usability aspects related to our prototype.
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Kolluri, Saiphani Krishna Priyanka Kolluri. "APPLYING LEAN PRINCIPLES FOR PERFORMANCE ORIENTED SERVICE DESIGN OF VIRTUAL NETWORK FUNCTIONS FOR NFV INFRASTRUCTURE : Roles and Relationships." Thesis, Blekinge Tekniska Högskola, Institutionen för kommunikationssystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13357.

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Context. Network Function Virtualization was recently proposed by European Telecommunications Standards Institute (ETSI) to improve the network service flexibility by virtualization of network services and applications that run on hardware. To virtualize network functions, the software is decoupled from underlying physical hardware. NFV aims to transform industries by reducing capital investments on hardware by using commercial-of-the-shelf (COTS) hardware. NFV makes rapid innovative growth in telecom services through software based service deployment. Objectives. This thesis work aims to investigate how business organizations function and the roles in defining a service relationship model. The work also aims to define a service relationship model and to validate it via proof of concept using network function virtualization as a service. For this thesis, we finally apply lean principles for the defined service relationship model to reduce waste and investigate how lean benefits the model to be proven as performance service oriented. Methods. The essence of this work is to make a business organization lean by investigating its actions and applying lean principles. To elaborate, this thesis work involves in a research of papers from IEEE, TMF, IETF and Ericsson. It results in modelling of a PoC by following requirement analysis methodology and by applying lean principles to eliminate unnecessary processes which doesn’t add any value. Results. The results of the work include a full-fledged service relationship model that include three service levels with roles that can fit in to requirement specifications of NFV infrastructure. The results also show the service levels functionalities and their relationships between the roles. It has also been observed that the services that are needed to be standardized are defined with syntax for ways to describe network functions. It is observed that lean principles benefit the service relationship model from reducing waste factors and hereby providing a PoC which is performance service oriented. Conclusions. We conclude that roles defined are fit for the service relationship model designed. Moreover, we conclude that the model can hence contain the flow of service by standardizing the subservices and reducing waste interpreted with lean principles and there is a need for further use case proof of the model in full scale industry trials. It also concludes the ways to describe network functions syntax which follows lean principles that are essential to have them for the sub-services standardization. However, PoC defined can be an assurance to the NFV infrastructure.
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Adapa, Sasank Sai Sujan. "APPLYING LEAN PRINCIPLES FOR PERFORMANCE ORIENTED SERVICE DESIGN OF VIRTUAL NETWORK FUNCTIONS FOR NFV INFRASTRUCTURE : Concepts of Lean." Thesis, Blekinge Tekniska Högskola, Institutionen för kommunikationssystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-13358.

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Context. Network Function Virtualization was recently proposed by European Telecommunications Standards Institute (ETSI) to improve the network service flexibility by virtualization of network services and applications that run on hardware. To virtualize network functions, the software is decoupled from underlying physical hardware. NFV aims to transform industries by reducing capital investments on hardware by using commercial-of-the-shelf (COTS) hardware. NFV makes rapid innovative growth in telecom services through software based service deployment. Objectives. This thesis work aims to investigate how business organizations function and the roles in defining a service relationship model. The work also aims to define a service relationship model and to validate it via proof of concept using network function virtualization as a service. For this thesis, we finally apply lean principles for the defined service relationship model to reduce waste and investigate how lean benefits the model to be proven as performance service oriented. Methods. The essence of this work is to make a business organization lean by investigating its actions and applying lean principles. To elaborate, this thesis work involves in a research of papers from IEEE, TMF, IETF and Ericsson. It results in modelling of a PoC by following requirement analysis methodology and by applying lean principles to eliminate unnecessary processes which doesn’t add any value. Results. The results of the work include a full-fledged service relationship model that include three service levels with roles that can fit in to requirement specifications of NFV infrastructure. The results also show the service levels functionalities and their relationships between the roles. It has also been observed that the services that are needed to be standardized are defined with syntax for ways to describe network functions. It is observed that lean principles benefit the service relationship model from reducing waste factors and hereby providing a PoC which is performance service oriented. Conclusions. We conclude that roles defined are fit for the service relationship model designed. Moreover, we conclude that the model can hence contain the flow of service by standardizing the subservices and reducing waste interpreted with lean principles and there is a need for further use case proof of the model in full scale industry trials. It also concludes the ways to describe network functions syntax which follows lean principles that are essential to have them for the sub-services standardization. However, PoC defined can be an assurance to the NFV infrastructure.
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Cilloni, Marco. "Design and Implementation of an ETSI Network Function Virtualization-compliant Container Orchestrator." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13373/.

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La Network Function Virtualisation (NFV) è la principale forza dietro la migrazione delle infrastrutture dei provider di reti verso sistemi distribuiti cloud, fornendo un innovativo approccio al design di architetture di reti di telecomunicazioni che permette un completo disaccoppiamento dei servizi offerti dalla rete dai dispositivi fisici e gli apparati su cui essi risiedono attraverso la loro completa virtualizzazione. L’uso di VNF, blocchi logici in grado di rappresentare le funzionalità e i servizi forniti dall’infrastruttura come elementi virtuali, permette alle Network Functions di essere agevolmente rilocate in data centers prossimi agli utenti finali dei servizi che offrono, evitando i pesanti costi in personale ed apparecchiature coinvolti nel caso dei dispositivi fisici. ETSI NFV fornisce linee guida ed architetture volte al supportare l’amministrazione ed orchestrazione (MANO) di apparati virtualizzati, sfruttando le infrastrutture fornite da Virtual Infrastructure Managers (VIM). Questa tesi ha affrontato le modalità con cui un framework NFV esistente, come Open Baton, possa essere esteso per sfruttare appieno le capacità fornite da sistemi di containerizzazione come Docker, realizzando i componenti e concetti necessari per offrire una infrastruttura NFV (NFVI) altamente scalabile e cloud-ready. Il prototipo di VIM basato su Docker e i relativi componenti MANO sviluppati durante questa tesi sono stati pensati per essere il più possibile indipendenti fra loro, per mantenere il sistema riusabile ed aperto ad estensioni future. L’analisi compiuta sulla soluzione per l’orchestrazione di container NFV basata su Docker creata durante lo step implementativo della tesi ha mostrato risultati molto positivi riguardo l’overhead sull’utilizzo di risorse di memoria e di storage da parte delle istanze di VNF basate su container.
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Miotto, Gustavo. "NFV-PEAR : posicionamento e encadeamento adaptativo de funções virtuais de rede." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/178675.

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O projeto de mecanismos flexíveis e eficientes para o posicionamento e encadeamento de funções virtualizadas de rede (VNFs) é essencial para o sucesso de Virtualização de Funções de Rede (Network Function Virtualization, NFV). A maioria das soluções existentes, no entanto, considera custos fixos (e imutáveis) de processamento de fluxos e de largura de banda ao posicionar as VNFs em Pontos de Presença da Rede (N-PoPs). Essa limitação torna-se crítica em redes NFV com fluxos cujos comportamentos são altamente dinâmicos e nas quais os requisitos de processamento e os recursos disponíveis nos NPoPs mudam constantemente. Para preencher essa lacuna, propõe-se o NFV-PEAR, uma plataforma para o posicionamento e encadeamento adaptativo de VNFs. O NFV-PEAR visa (re)organizar periodicamente os posicionamentos e encadeamentos de VNFs previamente determinados, objetivando-se manter um desempenho fim-a-fim aceitável mesmo durante flutuações nos custos de processamento e nos requisitos dos fluxos. Paralelamente, busca-se minimizar as mudanças na rede (por exemplo, a realocação de VNFs ou de fluxos) realizadas para cumprir esse objetivo. Os resultados obtidos, a partir de uma avaliação experimental, mostram que o NFV-PEAR tem potencial para reduzir significativamente o número de mudanças na rede necessárias para assegurar o desempenho fim-a-fim esperado para os fluxos, garantindo assim o funcionamento estável dos serviços.<br>The design of flexible and efficient mechanisms for proper placement and chaining of virtual network functions (VNFs) is key for the success of Network Function Virtualization (NFV). Most state-of-the-art solutions, however, consider fixed (and immutable) flow processing and bandwidth requirements when placing VNFs in the Network Points of Presence (N-PoPs). This limitation becomes critical in NFV-enabled networks having highly dynamic flow behavior, and in which flow processing requirements and available N-PoP resources change constantly. To bridge this gap, we present NFV-PEAR, a platform for adaptive VNF placement and chaining. In NFV-PEAR, network operators may periodically (re)arrange previously determined placement and chaining of VNFs, with the goal of maintaining acceptable end-to-end flow performance despite fluctuations of flow processing costs and requirements. In parallel, NFV-PEAR seeks to minimize network changes (e.g., reallocation of VNFs or network flows). The results obtained from an experimental evaluation provide evidence that NFV-PEAR has potential to deliver more stable operation of network services, while significantly reducing the number of network changes required to ensure end-to-end flow performance.
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Car, Mario. "OpenStack service function chaining interface." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/18737.

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Mestrado em Engenharia Eletrónica e Telecomunicações<br>OpenStack is a free and open-source cloud computing software platform. It is seen as a major technology enabler for the future of telecommunications. OpenStack eases the creation of virtualization environments, and is seen as a major technology for the development of network function virtualization (NFV). Currently, OpenStack is developing the use cases and the code for service function virtualization, but the higher layer management aspects are not being considered. This dissertation will address this challenge, and will work on the creation of an interface for a simple usage of the NFV functions, enabling the network manager to build services by concatenation of graphical elements. The Application Programming Interfaces that are currently being developed will be analyzed and a simple web interface to explore theirs potentialities will be created.<br>O OpenStack é uma plataforma livre e open-source de cloud computing. É visto como uma importante tecnologia no futuro das telecomunicações. O OpenStack facilita a criação de ambientes de virtualização e é visto como uma grande tecnologia para o desenvolvimento da virtualização de funções de rede (NFV). Atualmente, a fundacão OpenStack está a desenvolver os casos de uso e o código para a virtualização funções de serviço, mas os aspectos das camadas mais elevadas de gestão não estão a ser considerados. Esta dissertação vai enfrentar este desafio, e vai trabalhar na criação de uma interface para um uso simples do NFV, permitindo que o operador de rede construa serviços por concatenação de elementos gráficos. As interfaces de programação de aplicações que estão actualmente a ser desenvolvidas serão analisadas e uma interface web simples para explorar potencialidades das mesmas será criada.
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Books on the topic "Network Functions Virtualization (NFV)"

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Shah, Paresh, Rajendra Chayapathi, and Syed Hassan. Network Functions Virtualization (NFV) with a Touch of SDN. Pearson Education, Limited, 2016.

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Shah, Paresh, Rajendra Chayapathi, and Syed Hassan. Network Functions Virtualization (NFV) with a Touch of SDN. Pearson Education, Limited, 2016.

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2022 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV SDN). IEEE, 2022.

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Staff, IEEE. 2021 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV SDN). IEEE, 2021.

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2023 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV SDN). IEEE, 2023.

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SDN and NFV Simplified: A Visual Guide to Understanding Software Defined Networks and Network Function Virtualization. Addison-Wesley Professional, 2016.

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Doherty, Jim. SDN and NFV Simplified: A Visual Guide to Understanding Software Defined Networks and Network Function Virtualization. Addison-Wesley Longman, Incorporated, 2016.

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Doherty, Jim. SDN and NFV Simplified: A Visual Guide to Understanding Software Defined Networks and Network Function Virtualization. Addison-Wesley Longman, Incorporated, 2016.

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SDN and NFV Security: Security Analysis of Software-Defined Networking and Network Function Virtualization. Springer, 2018.

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Blokdyk, Gerardus. Network Functions Virtualization: Third Edition. CreateSpace Independent Publishing Platform, 2018.

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Book chapters on the topic "Network Functions Virtualization (NFV)"

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Banafa, Ahmed. "Network Functions Virtualization (NFV) or Software-Defined Networking (SDN)?" In Quantum Computing and Other Transformative Technologies. River Publishers, 2023. http://dx.doi.org/10.1201/9781003339175-24.

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Yang, Song, Nan He, Fan Li, and Xiaoming Fu. "A-DDPG: Attention Mechanism-Based Deep Reinforcement Learning for NFV." In Resource Allocation in Network Function Virtualization. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4815-2_6.

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Alhebaishi, Nawaf, Lingyu Wang, and Sushil Jajodia. "Modeling and Mitigating Security Threats in Network Functions Virtualization (NFV)." In Data and Applications Security and Privacy XXXIV. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49669-2_1.

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Yang, Song, Nan He, Fan Li, and Xiaoming Fu. "Delay-Sensitive and Availability-Aware Virtual Network Function Scheduling for NFV." In Resource Allocation in Network Function Virtualization. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-4815-2_4.

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Kim, Hyuncheol. "Network Function Virtualization (NFV) Platform for Wellness in High-Speed Network." In Lecture Notes in Electrical Engineering. Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0557-2_140.

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Troia, Sebastian. "Machine-Learning Defined Networking: Towards Intelligent Networks." In Special Topics in Information Technology. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62476-7_1.

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AbstractWith the advent of 5G technology and an ever-increasing traffic demand, today Communication Service Providers (CSPs) experience a progressive congestion of their networks. The operational complexity, the use of manual configuration, the static nature of current technologies together with fast-changing traffic profiles lead to: inefficient network utilization, over-provisioning of resources and very high Capital Expenditures (CapEx) and Operational Expenses (OpEx). This situation is forcing the CSPs to change their underlying network technologies, and have started to look at new technological solutions that increase the level of programmability, control, and flexibility of configuration, while reducing the overall costs related to network operations. Software Define Networking (SDN), Network Function Virtualization (NFV) and Machine Learning (ML) are accepted as effective solutions to reduce CapEx and OpEx and to boost network innovation. This chapter summarizes the content of my Ph.D. thesis, by presenting new ML-based approaches in order to efficiently optimize resources in 5G metro-core SDN/NFV networks. The main goal is to provide the modern CSP with intelligent and dynamic network optimization tools in order to address the requirements of increasing traffic demand and 5G technology.
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Kim, Hyuncheol. "Revised Virtual Resources Allocation Scheme in Network Function Virtualization (NFV) Enabled Networks." In Mobile and Wireless Technologies 2017. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-5281-1_45.

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Yan, Junzhi, Bo Yang, Li Su, Shen He, and Ning Dong. "Decentralized Certificate Management for Network Function Virtualization (NFV) Implementation in 5G Networks." In Mobile Multimedia Communications. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-89814-4_6.

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Prasad, Jayashree R., Shailesh P. Bendale, and Rajesh S. Prasad. "Semantic Internet of Things (IoT) Interoperability Using Software Defined Network (SDN) and Network Function Virtualization (NFV)." In Semantic IoT: Theory and Applications. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-64619-6_18.

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Oqaily, Alaa, Yosr Jarraya, Lingyu Wang, Makan Pourzandi, and Suryadipta Majumdar. "MLFM: Machine Learning Meets Formal Method for Faster Identification of Security Breaches in Network Functions Virtualization (NFV)." In Computer Security – ESORICS 2022. Springer Nature Switzerland, 2022. http://dx.doi.org/10.1007/978-3-031-17143-7_23.

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Conference papers on the topic "Network Functions Virtualization (NFV)"

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Senk, Stefan, Marian Ulbricht, Hosein K. Nazari, Tung V. Doan, Giang T. Nguyen, and Frank H. P. Fitzek. "Bring Functions Back to the Network: A Measurement Study." In 2024 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN). IEEE, 2024. https://doi.org/10.1109/nfv-sdn61811.2024.10807496.

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Pereira, Pedro, Pedro Escaleira, Diogo Gomes, and Rui Aguiar. "Automatic Service Migration in a MEC-NFV Environment." In 2024 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN). IEEE, 2024. https://doi.org/10.1109/nfv-sdn61811.2024.10807471.

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Limani, Xhulio, Arno Troch, Chieh-Chun Chen, et al. "Demonstrating Isolation Principles for 5G Network Slicing." In 2024 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN). IEEE, 2024. https://doi.org/10.1109/nfv-sdn61811.2024.10978951.

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Abinader, Fuad M., Julia A. Sousa Maciel, Luis G. Maciel Riveros, and Maykon R. Pereira Da Silva. "SDN Virtualization for Seamless Integration of PON Systems in Industry 4.0 TSN." In 2024 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN). IEEE, 2024. https://doi.org/10.1109/nfv-sdn61811.2024.10807500.

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Das, Debojeet, Lakshya, and Mythili Vutukuru. "Fastlane: A framework for building fast path network applications." In 2024 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN). IEEE, 2024. https://doi.org/10.1109/nfv-sdn61811.2024.10807494.

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Castillo-Lema, José, Augusto José Venâncio Neto, Flavio de Oliveira Silva, and Sergio Takeo Kofuji. "Network Function Virtualization in Content-Centric Networks." In X Workshop de Pesquisa Experimental da Internet do Futuro. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/wpeif.2019.7696.

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Network Functions Virtualization (NFV) offers an alternative way to design, deploy, and manage networking functions and services by leveraging virtualization technologies to consolidate network functions into general-purpose hardware platforms. On the past years extensive effort has been made to evolve and mature NFV tecnologies over IP networks. However, little or no attempts at all have been made to incorporate NFV into Information-Centric Networks (ICN). This work explores the use and implementation of virtual Network Funtions (VNFS)in Content-Centric Networks (CCN), and proposes the use of the Named Function Networking (NFN) paradigm as means to implement network functions and services in this kind of networks, distributing the network functions and services through the networks nodes and providing flexibility to dynamically place functions in the network as required and without the need of a central controller.
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Repetto, M., A. Carrega, and G. Lamanna. "Towards Novel Security Architectures for Network Functions Virtualization." In 2019 IEEE Conference on Network Function Virtualization and Software Defined Networks (NFV-SDN). IEEE, 2019. http://dx.doi.org/10.1109/nfv-sdn47374.2019.9040068.

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Makaya, Christian, and Douglas Freimuth. "Automated virtual network functions onboarding." In 2016 IEEE Conference on Network Function Virtualization and Software-Defined Networks (NFV-SDN). IEEE, 2016. http://dx.doi.org/10.1109/nfv-sdn.2016.7919499.

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Huff, Alexandre, Giovanni Venâncio, and Elias P. Duarte Jr. "Multi-SFC: Orquestração de SFCs Distribuídas sobre Múltiplas Nuvens em Múltiplos Domínios com Múltiplas Plataformas NFV." In XXXVII Simpósio Brasileiro de Redes de Computadores e Sistemas Distribuídos. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/sbrc.2019.7402.

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A arquitetura NFV-MANO, amplamente adotada por soluções NFV (Network Function Virtualization) inclui o elemento NFVO (NFV Orchestrator) para apoiar a orquestração de SFC (Service Function Chaining). Este trabalho propõe uma estratégia para a orquestração de Multi-SFCs: SFCs distribuídas sobre múltiplas nuvens, possivelmente em múltiplos domínios, orquestradas por NFVOs de múltiplas plataformas NFV. Soluções existentes são monolíticas, pois se restringem a SFCs compostas por VNFs (Virtual Network Functions) de uma única nuvem/domínio/orquestrador. A estratégia proposta estabelece túneis através da instanciação de VNFs em pontos específicos da Multi-SFC, permitindo a instanciação e comunicação segura de recursos em múltiplos domínios. Diversas tarefas de gerenciamento, incluindo a configuração das infraestruturas NFV são transparentes para o operador. Resultados experimentais avaliam a solução, comparando a abordagem proposta em termos de desempenho e consumo de recursos.
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Medhat, Ahmed M., Giuseppe A. Carella, Michael Pauls, Marcello Monachesi, Marius Corici, and Thomas Magedanz. "Resilient orchestration of Service Functions Chains in a NFV environment." In 2016 IEEE Conference on Network Function Virtualization and Software-Defined Networks (NFV-SDN). IEEE, 2016. http://dx.doi.org/10.1109/nfv-sdn.2016.7919468.

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Reports on the topic "Network Functions Virtualization (NFV)"

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Dhingra, Manika. Multicasting in Network Function Virtualization (NFV) Environment. Iowa State University, 2018. http://dx.doi.org/10.31274/cc-20240624-1030.

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