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Software Defined Networking (SDN) separates the control plane from the data plane to ease network management and provide flexibility in packet routing. The control plane interacts with the data plane through the forwarding tables, usually including a flow table and a group table, at each switch. Due to high cost and power consumption of Ternary Content Addressable Memory (TCAM), commodity switches...
Traffic Engineering is an efficient tool to balance the network flows and, thus improving the network performance with limited network resources. The goal of traffic engineering is to find an efficient and robust routing to balance the flows with changing traffic. Multiple traffic matrices are good representatives of the changing traffic. The emergence of Software Defined Networking (SDN) provides...
Currently, the contradiction between the rapid growth of network traffic and the limited network resource is plaguing network operators and Internet users. In this paper, we conduct a survey on how to build efficient streaming systems in edge network under SDN (software defined networking) architecture and on how to manage the large traffic in core network caused by file transferring and media streaming...
In this paper we introduce the SDNRoute system which aims to support routing decisions in Software Defined Networks. Such a system is especially important in the context of the SDN as this concept makes it possible to perform routing in a dynamic and elastic manner. We focus on the SDNRoute architecture and research challenges that must be investigated to develop the system. Additionally, we provide...
This paper present the parallelization of firefly algorithm for permutation routing in baseline multistage interconnection network. The proposed parallel firefly algorithm employs a self routing approach to route the permutation in baseline network. The objective of this paper is as follows (i) to improve serial firefly algorithm to parallel one for better utilization of multi core/ many core processor...
We propose a Disruption Aware Routing and link Scheduling (DARS) scheme for multi-hop cognitive radio networks. The objective is to minimize disruptions to secondary user communication sessions due to channel switching and the resource consumption. We formulate the problem into an optimization problem and develop an efficient algorithm to solve the problem. The main idea is to monitor the data rate...
As more and more data-intensive applications have been moved to the cloud, the cloud network has become the new performance bottleneck for cloud applications. To boost application performance, the concept of coflow has been proposed to bring application-awareness into the cloud network. A coflow consists of many individual data flows, and a coflow is completed only when all its component flows are...
In the past few years, Network on chip (NoC) is presented as the best communication architecture for complex chip. Unlike conventional bus, NoC allows many cores to communicate concurrently, provides more scalability and enhance the system performances. For this reason, we propose a flexible router for NoC architecture. The proposed router implements a minimal routing algorithm to avoid deadlocks...
Software Defined Network (SDN) has been envisioned as the next generation network infrastructure, which simplify network management by decoupling the control plane and data plane. It is becoming the leading technology behind many traffic engineering solutions, since it allows a central controller to globally plan the paths of the flows. However, Ternary Content Addressable Memory (TCAM), as a critical...
Content Delivery Network (CDN) is an effective solution to offer reliable and efficient content provisioning across the Internet. In order to ensure the service experience, it is critical to adopt efficient routing and server selection techniques in CDN. However, traditional CDN is unable to possess global knowledge of whole network and therefore lacks the ability to dynamically control routing and...
The feasibility, scalability and performance of Internet-oriented Software Defined Network (SDN) are confronted with severe challenge, so it needs multiple controllers that influence every aspect of SDN performance. An effective placement algorithm of these controllers is especially important. In this paper, we formulate the Multiobjective Optimization Controller Placement (MOCP) problem and focus...
The rapid development of cloud computing has raised big concerns over the high energy consumption of modern data centers. To satisfy the ever increasing data traffic needs, the energy consumption of data center network (DCN) also takes a significant proportion. The newly emerging technology, Software Defined Networking (SDN), which allows flexible control of network devices, brings a new opportunity...
NoC has a significant impact on the power, area and performance of multi-core architectures. The contribution of NoC in the total power budget of a CMP is approximately 30 to 40% [1], and the input buffers of router consume most of it. Therefore, the designers need to design a low power communication architecture of NoC by reducing the power consumption of buffers. In the existing techniques, virtual...
Modern Industrial Control Systems (ICS) integrate advanced solutions from the field of traditional IP networks, i.e., Software-Defined Networks (SDN), in order to increase the security and resilience of communication infrastructures. Despite their clear advantages, such solutions also expose ICS to common cyber threats that may have a dramatic impact on the functioning of critical infrastructures,...
Future Internet projects such as MobilityFirst and Named Data Networking have proposed novel mechanisms to replace the Internet Protocol to better support content delivery and mobility. However, the problem of efficient data transfer across the network core has not been adequately investigated. We tackle the challenge of inter-domain cut-through switching using software-defined networking (SDN). First,...
Middleboxes have become an integral part of Internet infrastructure, providing additional flow processing for policy control, security, and performance optimization. Network Function Virtualisation (NFV) proposes the deployment of software-based middleboxes on top of commercial off-the-shelf (COTS), enabling the dynamic adjustment of Virtual Network Functions (VNFs), both in terms of instance numbers...
As the complexity of evolving integration circuits and number of cores in each chip increases, the performance aspect becomes an important issue while designing complex chips. Networking becomes difficult in such systems when compared to conventional systems. A special networking technique called Network on Chip is used in SoC to address the above problem. In this paper, two techniques such as Platform...
Non-Volatile memory-based FPGAs (NV-FPGAs) are expected to replace traditional SRAM-based FPGAs to achieve higher scalability and lower power consumption. Yet the slow write performance of NVMs not only challenges FPGA reconfiguration speed and overhead but also constrains the programming cycles of FPGAs. To efficiently configure switch boxes, the majority component of an FPGA, this paper proposes...
In multi-radio wireless networks, it is vital to efficiently utilize the resource of non-overlapping channels, and thus the problem of channel assignment has been widely studied. Most proposed channel assignment approaches focus on reducing interference or maximizing throughput, assuming that all the radios on each node are keeping active. However, it is a significant waste of energy when network...
Routing in SDN-enabled networks with middle-boxes enables high level of control over network flows so that desired level of security, efficiency and performance can be achieved. However, the new capabilities place constraints on available resources such as switch memory and middle-box processing capacity. Additionally, flow traversal constraints may also arise where each network flow has to visit...
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