The State of the Art of Software Defined Networking (SDN) Issues in Current Network Architecture and a Solution for Network Management Using the SDN

2019 ◽  
Vol 10 (3) ◽  
pp. 33-48 ◽  
Author(s):  
Emilia Rosa Jimson ◽  
Kashif Nisar ◽  
Mohd Hanafi Ahmad Hijazi
Keyword(s):  
Network Management ◽  
Real Time ◽  
Network Model ◽  
Network Architecture ◽  
Limited Resource ◽  
Software Defined Networking ◽  
Centralized Control ◽  
Network Resources ◽  
Limited Bandwidth ◽  
Network Bandwidth

Software defined networking (SDN) architecture has been verified to make the current network architecture management simpler, and flexible. The key idea of SDN is to simplify network management by introducing a centralized control, through which dynamic updates of forwarding rules, simplification of the network devices task, and flow abstractions can be realized. In this article, the researchers discuss the complex design of the current network architecture, which has inevitably resulted in poor network resources management, such as bandwidth management. SDN-based network model has been proposed to simplify the management of the limited bandwidth of a network. The proposed network model utilizes the limited network bandwidth systematically by giving real-time traffics higher priority than non-real-time traffics to access the limited resource. The experimental results showed that the proposed model helped ensure real-time traffics would be given greater priority to access the limited bandwidth, where major portion of the limited bandwidth being allocated to the real-time traffics.

The State of the Art of Software Defined Networking (SDN)

2018 ◽  
Vol 10 (4) ◽  
pp. 44-60 ◽  
Author(s):  
Emilia Rosa Jimson ◽  
Kashif Nisar ◽  
Mohd Hanafi Ahmad Hijazi
Keyword(s):  
Real Time ◽  
Network Architecture ◽  
Software Defined Networking ◽  
Centralized Control ◽  
Network Resources ◽  
Limited Bandwidth ◽  
Network Bandwidth ◽  
Real Time Traffic ◽  
Complex Design ◽  
Proposed Model

The complex design of the current network architecture, which has inevitably resulted in poor network resources management, has triggered researchers to propose a Software Defined Networking (SDN)-based network model to simplify the management of the limited bandwidth of a network. The key idea of the SDN-based model is to simplify network management by introducing a centralized control through which the dynamic update of forwarding rules, the simplification of network devices tasks, and flow abstractions can be realized. This proposed model utilizes the limited network bandwidth systematically by giving real-time traffic higher priority than non-real-time traffic to access limited resources. The experimental results showed that the proposed model helped ensure real-time traffic would be given greater priority to access the limited bandwidth, where the major portion of the limited bandwidth was allocated to the real-time traffic.

scholarly journals SDNDefender: A Comprehensive DDoS Defense Mechanism Using Hybrid Approaches over Software Defined Networking

2021 ◽  
Vol 2021 ◽  
pp. 1-22
Author(s):  
Tianfang Yu ◽  
Lanlan Rui ◽  
Xuesong Qiu
Keyword(s):  
Network Architecture ◽  
Defense Mechanism ◽  
Software Defined Networking ◽  
Transport Layer ◽  
Global Network ◽  
Control Mode ◽  
Detection Accuracy ◽  
Centralized Control ◽  
Ddos Attacks ◽  
Network Bandwidth

In traditional networks, DDoS attacks are often launched in the network layer or the transport layer. Researchers had explored this problem in depth and put forward plenty of solutions. However, these solutions are only suitable for scenarios such as a single link or victim side network and could not analyse traffic distribution from the angle of the global network. Also, the TCP/IP network architecture lacks abilities to quickly conduct resource deployment and traffic scheduling. When DDoS attacks occur, victims usually could not respond in time. With the superiorities of centralized control mode and global topological view, Software-Defined Networking (SDN) provides a new way to get over the above issues. In this paper, we adopt a combination of diverse technologies to design SDNDefender, a SDN-based DDoS detection and defense mechanism, which is composed of two core components aiming to counter the most popular DDoS attacks including IP spoofing attack and TCP SYN flood attack. We carry out quantitative simulation experiments for evaluating SDNDefender from many metrics. The experimental results show that in contrast to other DDoS defense algorithms, SDNDefender not only efficiently validates spoofed packets and withstands well-known attacks but also defends unknown attacks according to the target’s available resources. Besides, SDNDefender could significantly reduce TCP half-open connections and improve detection accuracy, alleviating attack influences that exhaust the server’s resources and network bandwidth.

Game Theory for Wireless Network Resource Management

Game Theory ◽  
2017 ◽  
pp. 383-399
Author(s):  
Sungwook Kim
Keyword(s):  
Game Theory ◽  
Computer Network ◽  
Limited Resource ◽  
Shared Resources ◽  
Network Resources ◽  
Network Resource ◽  
Network Bandwidth ◽  
Competitive Game ◽  
Network Usage ◽  
Fair Sharing

Computer network bandwidth can be viewed as a limited resource. The users on the network compete for that resource. Their competition can be simulated using game theory models. No centralized regulation of network usage is possible because of the diverse ownership of network resources. Therefore, the problem is of ensuring the fair sharing of network resources. If a centralized system could be developed which would govern the use of the shared resources, each user would get an assigned network usage time or bandwidth, thereby limiting each person's usage of network resources to his or her fair share. As of yet, however, such a system remains an impossibility, making the situation of sharing network resources a competitive game between the users of the network and decreasing everyone's utility. This chapter explores this competitive game.

Game Theory for Wireless Network Resource Management

2014 ◽  
pp. 188-203
Keyword(s):  
Game Theory ◽  
Computer Network ◽  
Limited Resource ◽  
Shared Resources ◽  
Network Resources ◽  
Network Resource ◽  
Network Bandwidth ◽  
Competitive Game ◽  
Network Usage ◽  
Fair Sharing

Computer network bandwidth can be viewed as a limited resource. The users on the network compete for that resource. Their competition can be simulated using game theory models. No centralized regulation of network usage is possible because of the diverse ownership of network resources. Therefore, the problem is of ensuring the fair sharing of network resources. If a centralized system could be developed which would govern the use of the shared resources, each user would get an assigned network usage time or bandwidth, thereby limiting each person's usage of network resources to his or her fair share. As of yet, however, such a system remains an impossibility, making the situation of sharing network resources a competitive game between the users of the network and decreasing everyone's utility. This chapter explores this competitive game.

scholarly journals MODERN INFRASTRUCTURE OF COMMUNICATION TECHNOLOGIES IN BUSINESS: MODELING OF THE METHOD OF «LIVING MIGRATION»

2021 ◽  
Author(s):  
Olena Moroz ◽  
Kostiantyn Latyshev ◽  
Viktorija Gherasymchuk
Keyword(s):  
Network Management ◽  
Traffic Flow ◽  
Mobile Networks ◽  
Network Architecture ◽  
Core Network ◽  
Live Migration ◽  
Network Resources ◽  
Service Architecture ◽  
Network Flexibility ◽  
Level Of Experience

In order to meet data and service requirements, network operators are constantly expanding and improving their network infrastructure, resulting in increased capital and operating costs. However, due to intense competition and falling prices, the average income per user does not increase proportionally, which leads to a decrease in return on investment. Thus, to reduce costs and increase revenue, mobile networks need to make the next evolutionary leap towards 5G, which now applies not only to the mobile border, but also to the core network. The 5G micro-operator service architecture must also be developed together with various technologies such as SDN and NFV. SDN abstracts network architecture by separating network management and redirection functions, allowing network management to become directly programmable and the underlying infrastructure to be abstracted for applications and network services. The interaction between SDN and NFV allows the 5G network to abstractly build the system infrastructure and further increase network flexibility. Therefore, the article substantiates the possibility of market commercialization of the use of technologies of live migration of traffic flow, which allows to give the product unique characteristics. The existing approaches to the solution of the problem of load balancing of the network of 5G micro operators are analyzed. A number of advantages of the live migration method have been identified, namely the possibility of its application for the micro operator's network and efficient use of network resources. According to the results of the experiment, it was found that the method of live migration has better values µO_num (68.1% of traffic flow) than the mechanism of MLF (29.8% of traffic flow). It is proved that the mechanism of live migration can determine the priority of the user traffic flow according to the servers in the zone µO, and therefore it is expedient to apply in terms of optimizing the distribution of traffic flow. The proposed method should increase the utilization of network resources and traffic flow efficiency and lead to a higher level of experience quality (QoE) for network users.

scholarly journals Detection and Mitigation of Flood Attacks in IPv6 Enabled Software Defined Networks

2020 ◽  
pp. 1-9
Author(s):  
O. Ashimi Quadri ◽  
Adeniji Oluwashola David
Keyword(s):  
Network Architecture ◽  
Denial Of Service ◽  
Cost Effective ◽  
Centralized Control ◽  
Ddos Attacks ◽  
Control Plane ◽  
Network Resources ◽  
Effective Manner ◽  
Data Plane ◽  
Experimental Testbed

Software-defined networking (SDN) is an emerging technology, which provides network architecture that decouples the control plane from the data plane. Due to the centralized control, the network becomes more dynamic, and the network resources are managed in a more efficient and cost-effective manner. The centralization of the control plane requires robust and real-time security techniques. The security Techniques will protect it from any sign of vulnerabilities associated with the network such as a distributed denial of service (DDoS) attacks. The problem of the data-plane is that the attack is hard to be tracked by the SDN controlling plane. This makes the switches to be more susceptible against these types of attacks and hence it is very important to have quick provisional methods in place to prevent the switches from breaking down as soon as first signs of an attack are detected. To resolve this problem, the research developed a mechanism that detects and mitigates flood attacks in IPv6 enabled software to define networks. An experimental testbed was developed using sFlow technique, floodlight controller, and OpenFlow version 1.3. A mitigation algorithm was also developed and was tested with a simulation tool Mininet. The real network traffic was tested on the testbed to investigate the effective mitigation of a DDoS attack. The mitigation time performance for IPv6 was 46.6% while IPv4 was 66.6%. Also, The result gathered from the experiment showed that both the response and detection times were 4 secs while the mitigation time was 7secs respectively. The overall control time being 11 secs. The experimental Testbed result shows that the developed testbed outperformed the previous methods with the ability to detect threats on the network faster. The result from the IPv6 testbed is a probable solution to mitigate the threats posed by DDoS attacks on the IPv6 enabled SDN network resources.

scholarly journals On the features of Software Defined Networking for the QoS provision in data networks

Inge CUC ◽  
2018 ◽  
Vol 14 (2) ◽  
pp. 106-115
Author(s):  
Jonier Hernando Porras Duque ◽  
Daniel Orlando Ducuara Beltrán ◽  
Gustavo Adolfo Puerto Leguizamón
Keyword(s):  
Quality Of Service ◽  
Network Architecture ◽  
Software Defined Networking ◽  
Data Networks ◽  
Centralized Control ◽  
Transport Services ◽  
Use Of Resources ◽  
Fast Evolution ◽  
Base Network

Introduction: The traditional networks mostly implement devices where the control plane is distributed and mixed with the data plane; this fact does not allow a fast evolution towards a process that contributes to improving the transport of services. Otherwise, Software Defined Networking is a set of transport services that optimize the use of resources as these have a centralized network structure. Objective: To determine the aspects that enable software-defined networking to provide quality of service features in data networks. Methodology: This study is performed through network simulation over the same base network and under the same working conditions by carrying out measurements of the packet forwarding response time and management of the transported bandwidth. This study includes the demonstration of the multimedia content transport over a network architecture defining priorities to the links. Results: The outcomes show how the Software Defined Networking achieves better management of data transmission through the base network. In the same way, the previous outcomes are reinforced with those obtained in the quality of service test performed on the streaming of a multimedia flow. Conclusions: Due to the centralized control of Software Defined Networking, forwarding functions with the quality of service features are enabled in data networks based on layer-2 devices.

scholarly journals Real-Time Image Transmission Algorithm in WSN with Limited Bandwidth

2018 ◽  
Vol 14 (12) ◽  
pp. 57
Author(s):  
Hui Huang ◽  
Zhe Li
Keyword(s):  
Real Time ◽  
Data Transmission ◽  
Network Architecture ◽  
Monitoring Network ◽  
Image Data ◽  
Image Transmission ◽  
Time Data ◽  
Limited Bandwidth ◽  
Real Time Image ◽  
Time Image

In this paper, a real-time image transmission algorithm in WSN with limited bandwidth networks is studied. Firstly, a simple and effective monitoring network architecture is established, which allows multiple video monitoring nodes to access the network, and the data transmission is controlled by the synchronization mechanism without collision. Then, the image data is compressed locally at the monitoring nodes (over 85%), so that the image of each node can meet the needs of real-time data transmission, and the overall power consumption of the system is greatly reduced. Finally, based on NVIDIA TX1, four test nodes are constructed to test the algorithm cumulatively, which verifies the effectiveness of the system framework and compression algorithm.

Performance Enhancement of Limited-Bandwidth Industrial Control Systems

2013 ◽  
Vol 739 ◽  
pp. 608-615 ◽  
Author(s):  
Basem Al-Madani ◽  
Anas Al-Roubaiey ◽  
Mohammad F. Al-Hammouri
Keyword(s):  
Real Time ◽  
Manufacturing Systems ◽  
Performance Enhancement ◽  
Industrial Control ◽  
Industrial Control Systems ◽  
Limited Bandwidth ◽  
Network Bandwidth ◽  
Overall Performance ◽  
Data Distribution Service ◽  
The Cost

Due to its portability, reliability, flexibility, real time and rich set of QoS support, Data Distribution Service (DDs) middleware became one of the best solutions for real time distributed manufacturing systems. Most of these systems are composed of heterogeneous networked devices where network bandwidth represents a very important resource. Those devices include limited-resources devices, such as sensors, actuators and controllers. Thus, controlling such resource will significantly enhance the overall performance of the network in terms of resource utilization, delay, and throughput; moreover, it reduces the cost of using leased network bandwidth by limiting the amount of bandwidth as much as needed. In this paper we propose a solution for controlling the limited-bandwidth networked manufacturing systems by using DDS; and we describe the DDS QoS polices that support manufacturing systems to control network bandwidth. Furthermore, we evaluate DDS middleware performance over Bluetooth channel by measuring latency, throughput and jitter; and examining different QoS parameters to show their effect on improving the existing limited-bandwidth networks.

scholarly journals IMPLEMENTING NDN USING SDN: A REVIEW ON METHODS AND APPLICATIONS

2016 ◽  
Vol 17 (2) ◽  
pp. 11-20 ◽  
Author(s):  
Shiva Rowshanrad ◽  
Mohamad Reza Parsaei ◽  
Manijeh Keshtgari
Keyword(s):  
Computer Networks ◽  
Network Architecture ◽  
Software Defined Networking ◽  
Network Architectures ◽  
Control Plane ◽  
Network Resources ◽  
End Points ◽  
Important Requirement ◽  
Data Plane ◽  
Data Networking

In recent years many claims about the limitations of todays’ network architecture, its lack of flexibility and ability to response to ongoing changes and increasing users demands. In this regard, new network architectures are proposed. Software Defined Networking (SDN) is one of these new architectures which centralizes the control of network by separating control plane from data plane. This separation leads to intelligence, flexibility and easier control in computer networks. One of the advantages of this framework is the ability to implement and test new protocols and architectures in actual networks without any concern of interruption.Named Data Networking (NDN) is another paradigm for future network architecture. With NDN the network becomes aware of the content that is providing, rather than just transferring it among end-points. NDN attracts researchers’ attention and known as the potential future of networking and internet. Providing NDN functionalities over SDN is an important requirement to enable the innovation and optimization of network resources. In this paper first we describe about SDN and NDN, and then we introduce methods for implementing NDN using SDN. We also point out the advantages and applications of implementing NDN over SDN.

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