scholarly journals On Blockchain-Based Cross-Service Communication and Resource Orchestration on Edge Clouds

Informatics ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 13
Author(s):  
Konstantinos Papadakis-Vlachopapadopoulos ◽  
Ioannis Dimolitsas ◽  
Dimitrios Dechouniotis ◽  
Eirini Eleni Tsiropoulou ◽  
Ioanna Roussaki ◽  
...  
Keyword(s):  
Network Function Virtualization ◽  
Network Resources ◽  
Service Orchestration ◽  
Network Slicing ◽  
Network Function ◽  
Resource Orchestration ◽  
Full Capacity ◽  
Cloud Datacenter ◽  
Set Up ◽  
The Internet Of Things

With the advent of 5G verticals and the Internet of Things paradigm, Edge Computing has emerged as the most dominant service delivery architecture, placing augmented computing resources in the proximity of end users. The resource orchestration of edge clouds relies on the concept of network slicing, which provides logically isolated computing and network resources. However, though there is significant progress on the automation of the resource orchestration within a single cloud or edge cloud datacenter, the orchestration of multi-domain infrastructure or multi-administrative domain is still an open challenge. Towards exploiting the network service marketplace at its full capacity, while being aligned with ETSI Network Function Virtualization architecture, this article proposes a novel Blockchain-based service orchestrator that leverages the automation capabilities of smart contracts to establish cross-service communication between network slices of different tenants. In particular, we introduce a multi-tier architecture of a Blockchain-based network marketplace, and design the lifecycle of the cross-service orchestration. For the evaluation of the proposed approach, we set up cross-service communication in an edge cloud and we demonstrate that the orchestration overhead is less than other cross-service solutions.

scholarly journals Using Aerial and Vehicular NFV Infrastructures to Agilely Create Vertical Services

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1342
Author(s):  
Borja Nogales ◽  
Miguel Silva ◽  
Ivan Vidal ◽  
Miguel Luís ◽  
Francisco Valera ◽  
...  
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Cost Effective ◽  
Network Services ◽  
Network Function Virtualization ◽  
Mobile Environments ◽  
Network Resources ◽  
The Public ◽  
Network Function ◽  
And Performance

5G communications have become an enabler for the creation of new and more complex networking scenarios, bringing together different vertical ecosystems. Such behavior has been fostered by the network function virtualization (NFV) concept, where the orchestration and virtualization capabilities allow the possibility of dynamically supplying network resources according to its needs. Nevertheless, the integration and performance of heterogeneous network environments, each one supported by a different provider, and with specific characteristics and requirements, in a single NFV framework is not straightforward. In this work we propose an NFV-based framework capable of supporting the flexible, cost-effective deployment of vertical services, through the integration of two distinguished mobile environments and their networks: small sized unmanned aerial vehicles (SUAVs), supporting a flying ad hoc network (FANET) and vehicles, promoting a vehicular ad hoc network (VANET). In this context, a use case involving the public safety vertical will be used as an illustrative example to showcase the potential of this framework. This work also includes the technical implementation details of the framework proposed, allowing to analyse and discuss the delays on the network services deployment process. The results show that the deployment times can be significantly reduced through a distributed VNF configuration function based on the publish–subscribe model.

scholarly journals Intent-Based End-to-End Network Service Orchestration System for Multi-Platforms

2020 ◽  
Vol 12 (7) ◽  
pp. 2782 ◽  
Author(s):  
Adeel Rafiq ◽  
Asif Mehmood ◽  
Talha Ahmed Khan ◽  
Khizar Abbas ◽  
Muhammad Afaq ◽  
...  
Keyword(s):  
Human Error ◽  
Human Interaction ◽  
Network Function Virtualization ◽  
Network Service ◽  
Service Orchestration ◽  
Network Function ◽  
5G Network ◽  
Level Information ◽  
End To End ◽  
High Level

On-demand service is the main feature of the 5G network, and Network Function Virtualization (NFV) provides it by virtualizing the existing 5G network infrastructure. NFV crafts various virtual networks on a shared physical network, but one of the core challenges in future 5G networks is to automate the modeling of Virtualized Network Functions (VNFs) and end-to-end Network Service (NS) orchestration with less human interaction. Traditionally, the descriptor of VNF and NS is created manually, which requires expert-level skills. This manual approach has a big threat of human error, which can be avoided by using the Intent-Based Networking (IBN) approach. The IBN approach eliminates the requirement of expertise for designing VNFs and NS by taking users’ intentions as an input. In this paper, the proposed system presents the Intent Management System for VNF modeling and end-to-end NS orchestration for multi-platforms. This system takes the high-level information related to a specific service, configures it accordingly, and converts it into the selected platform. The proposed system is tested using Mobile Central Office Re-architected as Data Center (M-CORD) and Open-Source Management and Orchestration (OSM) orchestrators. The results section shows that the proposed system reduces the effort of the end-user in creating network slices and provides seamless end-to-end service orchestration.

scholarly journals Software Defined Networking and Network Function Virtualization for Service Providers using Network Slice AS a Service

2019 ◽  
Vol 9 (2) ◽  
pp. 733-737
Keyword(s):  
Service Providers ◽  
Software Defined Networking ◽  
Network Services ◽  
Network Function Virtualization ◽  
Use Case ◽  
Service Networks ◽  
Service Network ◽  
Network Slicing ◽  
Network Function ◽  
Shared Network

The traditional network is configured based on the prescribed network requirements. Sometimes the resources of the network are underutilized and at sometimes there may resource starvation because of the static configuration of the network. As against traditional network, which is operated either as dedicated network or as an overlay network, network services can be operated over a shared network infrastructure. Thus maximum resource utilization under minimal infrastructure cost can be achieved. The on-demand network requirement can be configured dynamically using network slice. The backbone of the rapidly evolving 5G technology is network slice and service networks can be benefited from it. Different network function for multiple tenants can be enabled customized using network slice with each slice operating independently. Network slice can be offered as a service to meet various requirements from the network slice tenant with different granularities. The Software Defined Networking and Network Function Virtualization are the enabling technologies for network slice. This paper discusses various network slicing use case requirements. And also OpenFlow based software defined network environment is simulated to validate the discussions. Experimental results show that the efficiency of the service network is maximized with improved reliability of service

scholarly journals Provendo uma Infraestrutura de Software Fatiada, Isolada e Segura de Funções Virtuais através da Tecnologia de Corrente de Blocos

2019 ◽  
Author(s):  
Gabriel Antonio F. Rebello ◽  
Gustavo Camilo ◽  
Leonardo Silva ◽  
Lucas Guimarães ◽  
Lucas Airam C. de Souza ◽  
...  
Keyword(s):  
Software Defined Networking ◽  
Network Function Virtualization ◽  
Network Slicing ◽  
Network Function

As tecnologias de fatiamento da rede (Network Slicing), virtualização de funções de rede (Network Function Virtualization - NFV) e redes definidas por software (Software-Defined Networking - SDN) proveem serviços fim-a-fim ágeis e sob demanda. A identificação de uma função virtual defeituosa torna-se obrigatória, pois serviços alocam recursos em um ambiente distribuído e sem confiança entre os pares composto por múltiplos inquilinos e provedores de serviço concorrentes. Este artigo propõe e desenvolve uma arquitetura baseada em correntes de blocos para prover auditabilidade às operações de orquestração de fatias de rede. Um protótipo de um caso de uso foi desenvolvido e implementado utilizando a plataforma Hyperledger Fabric na qual cada fatia de rede opera sobre um canal isolado. Os resultados mostram que é possível prover segurança à criação de fatias de rede, mas que a obtenção de consenso e o número de transações requeridas pelas fatias de rede são um grande desafio.

The Key Impacts of Softwarization in the Modern Era of 5G and the Internet of Things

2020 ◽  
Vol 12 (3) ◽  
pp. 16-27
Author(s):  
Opeoluwa Tosin Eluwole ◽  
Mike Oluwatayo Ojo
Keyword(s):  
Artificial Intelligence ◽  
Internet Of Things ◽  
Network Function Virtualization ◽  
The Internet ◽  
Mobile Edge Computing ◽  
New Era ◽  
Network Function ◽  
Advanced Computing ◽  
Modern Era ◽  
The Internet Of Things

Fascinating technologies, such as software defined networking (SDN), network function virtualization (NFV) and mobile edge computing (MEC) among others, have introduced software-enabling capabilities to telecommunications, mobile and wireless communications. To depict this systemic evolution, various terminologies, such as system cloudification, network programmability, advanced computing and most popularly, softwarization, have been used by numerous scholars. Softwarization is now becoming a fully established phenomenon, especially in the new era of the rapidly evolving Internet of Things (IoT), artificial intelligence (AI) and the looming 5G technology. Away from the research and development (R&D) focus on the technological capabilities of softwarization, this article highlights the main stakeholders in softwarization and underlines a tripartite influence of the systemic evolution i.e. technical, social and economic impacts, all of which will be vital in ensuring a sustainable 5G technology and beyond.

scholarly journals Network Slicing to Enable Resilience and High Availability in 5G Mobile Telecommunications

2018 ◽  
Vol 246 ◽  
pp. 03028
Author(s):  
Qi He ◽  
Yunxia Ju ◽  
Jianguo Wang ◽  
Gang Zhao ◽  
Haiyong Qin ◽  
...  
Keyword(s):  
Smart Grids ◽  
State Of The Art ◽  
Network Function Virtualization ◽  
Software Defined Networks ◽  
Network Slicing ◽  
Network Function ◽  
Fifth Generation ◽  
Personalized Services ◽  
Health Applications ◽  
Open Issues

In the upcoming fifth-generation (5G) ecosystem, the delivery of a variety of personalized services is envisioned. With the development of software-defined networks and network function virtualization technologies, networks display increasingly flexible features, such as programmability. Network slicing is a state-of-the-art technology that provides services tailored to the specific demands of users, such as smart grids and e-health applications. In this article, we introduce the network slicing concept and its application and discuss related work. In addition, we propose an architecture for network slicing by combining software-defined networks and network function virtualization technologies. Finally, we note important challenges and open issues in the development and application of these technologies.

scholarly journals NVP: A Network Virtualization Proxy for Software Defined Networking

2016 ◽  
Vol 11 (5) ◽  
pp. 697 ◽  
Author(s):  
Billy Pinheiro ◽  
Eduardo Cerqueira ◽  
Antonio Abelem
Keyword(s):  
Large Scale ◽  
Network Virtualization ◽  
Software Defined Networking ◽  
Network Function Virtualization ◽  
Load Testing ◽  
Proof Of Concept ◽  
Network Resources ◽  
Network Function ◽  
Large Scale Networks ◽  
Proper Solutions

The combination of Network Function Virtualization (NFV) and Software Defined Networking (SDN) can improve the control and utilization of network resources. However, this issue still requires proper solutions to virtualize large-scale networks, which would allow the use of SDN and Virtualization in real environments.Thus, this paper proposes a virtualization architecture for SDN that relies on a proxy-based approach. The NVP (Network Virtualization Proxy) is a virtualization proxy that intercepts messages exchanged between controllers and switches SDN enabling network virtualization. An implementation of the proposal was developed as a proof of concept and load testing was performed showing that the solution can provide network virtualization in a scalable manner, using less than 2.5 MB of memory to manage 100 switches performing simultaneous requests, whereas FlowVisor requires more than 200 MB.

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