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Network Functions Virtualization allows Communication Service Providers to extend their traditional service portfolio to new models of service offerings, such as Virtualized Network Functions as a Service (VNFaaS), in which network functions can be traded following the “on-demand” Cloud paradigm. Incremental deployment and interoperability with legacy infrastructure, in particular Wide Area Network...
The residential gateway (RGW) is a widely deployed device in the context of telecommunication services such as triple play and internet access. Designed to make the connection between the customer home and the operator infrastructure, it provides wired and/or wireless connectivity capabilities, also handling services such as Domain Name Service (DNS) proxying, routing, Network Address Translation...
Deploying service functions, SFs, is an essential action for a network provider. However, the action of creating, modifying and removing network SFs is traditionally very costly in time and effort, requiring the acquisition and placement of specialized hardware devices and their interconnection. Fortunately, the emergence of concepts like cloud computing, SDN, and ultimately NFV is expected to raise...
The principle of Network Functions Virtualization (NFV) aims to transform network architectures by implementing Network Functions (NFs) in software that can run on commodity hardware. There are several challenges inherent to NFV, among which is the need for an orchestration and management framework. This paper presents the Cloud4NFV platform, which follows the major NFV standard guidelines. The platform...
Precise and dynamic measurements of physical and virtualized telecommunication environments are critical for ensuring optimized resource management and control. The flexible service instantiation and disposal of Virtual Network Functions (VNF), within geographically distributed cloud service environments, requires automated adjustments of monitoring systems. Moreover, the overall goal of reducing...
The momentum around Software-defined Networking (SDN) is increasing. It has become clear that the network architecture needs to evolve to be able to provide current and next generation networking services, both from a performance and implementation point of view. However, most of the current SDN research has looked to specificities of SDN and few have looked from a full stack perspective. Although...
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