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نتیجه جستجو - Virtualized network function

تعداد مقالات یافته شده: 2
ردیف عنوان نوع
1 Security challenges with network functions virtualization
چالش های امنیتی با توابع شبکه مجازی سازی -2017
The advent of network functions virtualization (NFV) has revolutionized numerous network-based applications due to its several benefits such as flexibility, manageability, scalability, and security. By the software-based virtualization of network functions on a single infrastructure, NFV provides users with a framework that dynamically provisions various network services in a flexible manner. However, NFV faces several security challenges (e.g., multi-tenancy and live migration) which make it vulnerable to some cybersecurity attacks (e.g., side-channel attacks and shared resource misuse attacks). In this paper, we provide an overview of NFV, discuss potentially serious security threats on NFV and introduce effective countermeasures to mitigate those threats. Finally, we suggest some practical solutions to provide a trustworthy platform for NFV.
Keywords: Network functions virtualization | Network security | Virtualized network function | Security threats
مقاله انگلیسی
2 Communication Cost Efficient Virtualized Network Function Placement for Big Data Processing
Communication Cost Efficient Virtualized Network Function Placement for Big Data Processing-2016
The data explosion in the emerging big data era imposes a big burden on the network infrastructure. This vision has urged the evolution of computer networks. By softwarizing traditional dedicated hardware based functions to virtualized network function (VNF) that can run on standard commodity servers, network function virtualization (NFV) technology promises increased networking efficiency, flexibility and scalability. From the perspective of network service providers, with the consideration of big data traffic volume, one primary concern is on the communication cost, which is highly influenced by the VNF placement strategy. In this paper, we are motivated to investigate the issue on communication cost efficient VNF placement problem for big data processing, with joint consideration of network flow balancing and the predetermined network service semantics. We formulate this problem into a mixed-integer linear programming (MILP) form and then propose a low-complexity relaxationbased heuristic algorithm accordingly. The high efficiency of our proposal is validated by extensive simulation studies.
Keywords: Noise measurement | Big data | Distributed databases | Algorithm design and analysis | Servers | Heuristic algorithms | Semantics
مقاله انگلیسی
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