network functions virtualization (NFV) and Information-Centric networking (ICN) are promising networking paradigms for the future of the Internet. Concurrently, microservice architecture offers an attractive alternati...
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network functions virtualization (NFV) and Information-Centric networking (ICN) are promising networking paradigms for the future of the Internet. Concurrently, microservice architecture offers an attractive alternative to monolithic architecture for software development. This work addresses a scenario composed of these concepts, where an ICN network must be deployed and managed using ICN microservices. In this scenario, ICN microservices must be created, connected, configured, and monitored at runtime, which is not trivial. To address these challenges, this work proposes Micro-Chain, an architecture for deploying, scaling, and linking ICN microservices. The architecture consists of four modules, relationships between them, and core operations. A Micro-Chain implementation is presented as proof of concept, which has a threshold-based scaling process and a placement method to minimize the number of hops for an ICN microservice chain. The evaluation assesses a scale-on-demand scenario in a cluster with three nodes. The results demonstrate that 1) the developed solution can scale on demand, 2) the communication overhead is 0.632%, and 3) the placement of microservices affects network performance.
network Function virtualization (NFV) delivers numerous benefits to customers since it is a cost-effective evolution of legacy networks, allowing for rapid network augmentation and extension at a low cost as network f...
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network Function virtualization (NFV) delivers numerous benefits to customers since it is a cost-effective evolution of legacy networks, allowing for rapid network augmentation and extension at a low cost as networkfunctions are virtualized. However, on the other hand, there is a big security concern for NFV users because of shared infrastructure. There are many studies in the literature that report various NFV security threats. In this paper, we categorize these threats according to the alignment of NFV architecture and delineate a taxonomy for NFV security threats. This work provides detailed information about security threats, causes, and countermeasures to reduce the security vulnerabilities of NFV. We believe that the study of NFV security threats from an architectural perspective is a step forward for better insight into these threats since the roots of many NFV threats are connected to their architecture. We also present how NFV design should be revamped to mitigate NFV security threats, something that is a recent trend in this area. Finally, we highlight future research directions to provide enhanced security for future NFV-based networks.
The main problem of deploying service function chains in virtualized 5G networks is dealt with in wireless 5G communications and effective ubiquitous learning models. The aim is to ensure differentiated network perfor...
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The main problem of deploying service function chains in virtualized 5G networks is dealt with in wireless 5G communications and effective ubiquitous learning models. The aim is to ensure differentiated network performance for a wide range of services while maximizing the collaborative revenue of infrastructure operators and wireless virtual operators. To achieve this, a utility-based service function chain deployment strategy is introduced, tailored to the specific characteristics of Ubiquitous Learning based 5G-RAN-Architecture. Consideration is given to the virtual operator's maximum tolerable end-to-end latency, minimum service rate requirements, and the infrastructure operator's constraints on computing and link resources. It also looks at how different deployment scenarios for service function chains affect network performance and creates a utility model using a business framework. The ultimate objective is to optimize the collective revenue of infrastructure operators and virtual operators. The approach leverages genetic algorithms and Matlab's Linprog function for iterative problem-solving. The graph clearly shows that the SFC deployment algorithm in this study uses less infrastructure resources for Front Haul links. This implies that the algorithm successfully reduces the load on Front Haul lines, which in turn lowers the cost of SFC deployment and makes it easier to deploy more SFCs across the infrastructure. This work contributes to the evolution of 5G wireless communications and its seamless integration with ubiquitous learning models.
Virtual networkfunctions allow the effective separation between hardware and network functionality, a strong paradigm shift from previously tightly integrated monolithic, vendor, and technology dependent deployments....
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Virtual networkfunctions allow the effective separation between hardware and network functionality, a strong paradigm shift from previously tightly integrated monolithic, vendor, and technology dependent deployments. In this virtualized paradigm, all aspects of network operations can be made to deploy on demand, dynamically scale, as well as be shared and interworked in ways that mirror behaviors of general cloud computing. To date, although seeing rising demand, distributed ledger technology remains largely incompatible in such elastic deployments, by its nature as functioning as an immutable record store. This work focuses on the structural incompatibility of current blockchain designs and proposes a novel, temporal blockchain design built atop federated byzantine agreement, which has the ability to dynamically scale and be packaged as a Virtual network Function (VNF) for the 5G Core.
virtualization enables the sharing of a same wireless sensor network (WSN) by multiple applications. However, in heterogeneous environments, virtualized wireless sensor networks (VWSN) raise new challenges such as the...
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virtualization enables the sharing of a same wireless sensor network (WSN) by multiple applications. However, in heterogeneous environments, virtualized wireless sensor networks (VWSN) raise new challenges such as the need for on-the-fly, dynamic, elastic, and scalable provisioning of gateways. network functions virtualization (NFV) is an emerging paradigm that can certainly aid in tackling these new challenges. It leverages standard virtualization technology to consolidate special-purpose network elements on top of commodity hardware. This article presents a case study on NFV based gateways for VWSNs. In the study, a VWSN gateway provider operates and manages an NFV based infrastructure. We use two different brands of wireless sensors. The NFV infrastructure makes possible the dynamic, elastic, and scalable deployment of gateway modules in this heterogeneous VWSN environment. The prototype built with Openstack as platform is described.
Relying too much on dedicated hardware equipment, resulting in poor flexibility and extensibility of existing communications network, while the new technology application cycle is long, seriously affect the communicat...
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ISBN:
(纸本)9781510830981
Relying too much on dedicated hardware equipment, resulting in poor flexibility and extensibility of existing communications network, while the new technology application cycle is long, seriously affect the communication operators' interest in deploying. In order to solve these problems, the new network architecturenetwork Function virtualization(NFV), was proposed. This paper introduces the basic principle and design framework of NFV, proposes a method of constructing virtual network based on NFV, namely achieving routing function in the form of software, deploying it to a virtual operating system, and running in the universal server virtualization software in the form of virtual machine, multiple virtual routers and virtual terminal system interconnection constitutes a virtual network, testing and analyzing the transmission performance of the virtual network, realizing to control the transmission performance of the virtual network, create a virtual network that have the transmission characteristics of real network environment to test new technologies.
For the large-scale infrastructure of satellite networks,the implementation of control management deployment will face many difficulties such as huge cost,long cycle,immature technology and ***,the design of flexible ...
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For the large-scale infrastructure of satellite networks,the implementation of control management deployment will face many difficulties such as huge cost,long cycle,immature technology and ***,the design of flexible network control software based on SDN and NFV numerical control separation is *** purpose of SDN is to centrally manage the network,uniformly allocate resources and implement,and effectively grasp the remaining status of resource *** is an operator to reduce resource construction costs and operation and maintenance output,mainly to improve resource utilization and achieve resource *** prototype performs dynamic deployment and effective orchestration of the service chain under the SDN controller,and performs possible aggregation *** simulation implementation shows that the elastic network control software design can effectively reduce the time delay.
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