scholarly journals A Novel Blockchain based Software Defined Network (SDN) Architecture to Curb the Impact of DoS/DDoS

2021 ◽  
Vol 6 (5) ◽  
pp. 12-24
Author(s):  
Subhasis Sanyal ◽  
Mohit Kumar Barai ◽  
Anil Goplani
Keyword(s):  
Software Defined Network ◽  
The Impact

scholarly journals The impact of firewall on TCP and UDP throughput in an openflow software defined network

2020 ◽  
Vol 20 (1) ◽  
pp. 256
Author(s):  
Mutaz Hamed Hussien Khairi ◽  
Sharifah H. S. Ariffin ◽  
N. M. Abdul Latiff ◽  
Kamaludin Mohamad Yusof ◽  
M. K. Hassan ◽  
...  
Keyword(s):  
Transmission Control Protocol ◽  
Network Activity ◽  
Software Defined Network ◽  
Control Plane ◽  
Transmission Control ◽  
Performance Metric ◽  
And Control ◽  
The Impact ◽  
Average Drop

Software Defined Networking (SDN) is an emerging networking paradigm that provides more flexibility and adaptability in terms of network definition and control. However, SDN is a logically centralized technology. Therefor the control plane (i.e. controller) scalability in SDN in particular, is also one of the problems that needs further focus. OpenFlow is one of the protocol standards in SDN, which allow the separation of the controller from the forwarding plane. The control plane has an SDN embedded firewall and is able to enforce and monitor the network activity. This firewall can be used to control the throughput. However, it may affect SDN performance. In this paper, throughput will be used as a performance metric to evaluate and assess the firewall impact on two protocols; Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) that passes through the forwarding planes. The evaluations have been verified through simulating the SDN OpenFlow network using MININET. The results show that an implementation of firewall module in SDN creates a significant 36% average drop for TCP and 87% average drop for UDP in the bandwidth which eventually affect the quality of the network and applications.

scholarly journals Ransomware protection in IoT using software defined networking

2020 ◽  
Vol 10 (3) ◽  
pp. 3166
Author(s):  
Azka Wani ◽  
S. Revathi
Keyword(s):  
Limited Resources ◽  
Special Focus ◽  
Security Threats ◽  
Software Defined Network ◽  
Medical Field ◽  
Detection Mechanism ◽  
Proposed Model ◽  
Man In The Middle ◽  
The Impact ◽  
Sdn Controller

Internet of things (IoT) is the network of physical objects connected to provide various services. IoT is expanding rapidly, and is positively influencing many areas. The impact of IoT is evident in medical field, manufacturing units and livestock. The IoT is also vulnerable to many cyber threats, owing to its limited resources and battery operation. In contemporary times the security threats like DDoS, botnet malware, man in the middle, flood attacks and ransomware are affecting the smooth functioning of IoT. Ransomware has emerged as one of the biggest threat in cyber world. Ransomware is a type of malware that stops the access to files by encrypting them and decrypts the files only when a ransom is paid. The negligence towards the IoT ransomware can result in disastrous outcomes. In this paper, the growth of ransomware attacks for past few years is shown with special focus on ransomwares threatening IoT. A detection mechanism for IoT ransomware attack is presented that is designed after study of ransomware for IoT. The proposed model monitors the incoming IoT traffic through Software Defined Network (SDN) gateway. It uses policies framed in SDN controller for detection and alleviation of ransomware in IoT.

scholarly journals Performance analysis of software defined network using intent monitor and reroute method on ONOS controller

2020 ◽  
Vol 9 (5) ◽  
pp. 2065-2073
Author(s):  
Putri Monika ◽  
Ridha Muldina Negara ◽  
Danu Dwi Sanjoyo
Keyword(s):  
Traffic Management ◽  
Network Connectivity ◽  
Traffic Density ◽  
Software Defined Network ◽  
Network Configuration ◽  
Network Bandwidth ◽  
Data Plane ◽  
The Impact ◽  
Sdn Controller

Software Defined Network (SDN) provides high service flexibility to optimize network configuration based on network traffic. Traffic management able to solve traffic density in SDN. However, it will misuse the network bandwidth and links. One variant of the SDN controller, namely Open Network Operating System (ONOS), provides an Intent Monitor and Reroute (IMR) method that can optimize traffic management based on the description of an object in the ONOS application. This method can optimize the network bandwidth and links of SDN. The IMR can monitor the network and reconfigure the network to restore network connectivity by maximizing the use of each link when transmitting data. This study examines the impact of using IMR with a custom topology on ONOS to find the best scenario by performing traffic management on a data plane consisting of switches totaling 8-12 switches. The parameters measured in this study are bandwidth usage and quality of service (QoS). The results obtained in this study are IMR able to optimize the use of each link and maximize bandwidth usage in a network when distributing data and following TIPHON standards

Performance Analysis of DDoS Attack on SDN and Proposal of Cracking Agorithm

2020 ◽  
Vol 11 (4) ◽  
pp. 1-12
Author(s):  
Ankur Dumka ◽  
Alaknanda Ashok ◽  
Parag Verma
Keyword(s):  
Performance Analysis ◽  
Software Defined Network ◽  
Ddos Attacks ◽  
Ddos Attack ◽  
Ip Addresses ◽  
The Impact

The software-defined network (SDN) emerges as an updated technology that changes the scenario of networking where the network is managed by means of software. Any network is always not secure, and hence, the research in terms of securing this network is an area of research. DDoS is one of the attacks that makes a network insecure. This paper proposes the impact in terms of performance of SDN networks due to DDoS attack and proposes a new algorithm for increasing the performance of network. The proposed algorithm prevents the DDoS attack at the application level of flooding by keeping track of IP addresses and thus improves the performance of the network by preventing from DDoS attacks.

scholarly journals Software Defined Network for Qos Enhancement in Mobile Wi-Fi Network

2019 ◽  
Vol 8 (3) ◽  
pp. 4863-4868 ◽  
Keyword(s):  
Network Optimization ◽  
Network Performance ◽  
Fast Response ◽  
Direct Access ◽  
The Internet ◽  
Software Defined Network ◽  
Control Plan ◽  
High Bandwidth ◽  
Network Performance Evaluation ◽  
The Impact

Wi-FI has become one of the dominant technology for direct access to the Internet due to its expanded services offering, its simplicity and its high-bandwidth provisioning that gives a capacity to support high traffic. Software-defined network (SDN) architecture simplified network management through an automatically programmed network. It provides a separation between the control plan (Controller) and the data plan (Switch) functions of the networks, this allows network optimization and fast response to network changes without the need to manually reconfigure existing infrastructure or purchase new hardware. In this paper, we have proceeded by studying the exchanges during a mobility within a WI-FI-based SDN network, then a network performance evaluation has been performed in order to analyze the impact of introducing the SDN concept on the performance of a mobile Wi-Fi network. For all proposed scenarios, we notice that the Wi-Fi-Based SDN architecture gives better results than in the case of the traditional Wi-Fi network.

Formation of Lunar Craters and Bright Rays as a Result of Meteorite Impacts

1962 ◽  
Vol 14 ◽  
pp. 415-418
Author(s):  
K. P. Stanyukovich ◽  
V. A. Bronshten
Keyword(s):  
Explosive Charge ◽  
The Moon ◽  
Meteorite Impacts ◽  
The Earth ◽  
Lunar Craters ◽  
The Impact

The phenomena accompanying the impact of large meteorites on the surface of the Moon or of the Earth can be examined on the basis of the theory of explosive phenomena if we assume that, instead of an exploding meteorite moving inside the rock, we have an explosive charge (equivalent in energy), situated at a certain distance under the surface.

The Geosciences Applied to Lunar Exploration

1962 ◽  
Vol 14 ◽  
pp. 169-257 ◽  
Author(s):  
J. Green
Keyword(s):  
Lunar Surface ◽  
Probable Mechanism ◽  
Point Of View ◽  
Lunar Exploration ◽  
Geological Model ◽  
Apply Geophysics ◽  
Surface Features ◽  
The Impact

The term geo-sciences has been used here to include the disciplines geology, geophysics and geochemistry. However, in order to apply geophysics and geochemistry effectively one must begin with a geological model. Therefore, the science of geology should be used as the basis for lunar exploration. From an astronomical point of view, a lunar terrain heavily impacted with meteors appears the more reasonable; although from a geological standpoint, volcanism seems the more probable mechanism. A surface liberally marked with volcanic features has been advocated by such geologists as Bülow, Dana, Suess, von Wolff, Shaler, Spurr, and Kuno. In this paper, both the impact and volcanic hypotheses are considered in the application of the geo-sciences to manned lunar exploration. However, more emphasis is placed on the volcanic, or more correctly the defluidization, hypothesis to account for lunar surface features.

Asteroid and Comet Impact Speeds upon Mars: Significance for Panspermia and the Supply of Organics

1997 ◽  
Vol 161 ◽  
pp. 197-201 ◽  
Author(s):  
Duncan Steel
Keyword(s):  
Probability Distributions ◽  
Regions Of Interest ◽  
Significant Fraction ◽  
Organic Chemicals ◽  
Impact Speed ◽  
The Mean ◽  
The Impact

AbstractWhilst lithopanspermia depends upon massive impacts occurring at a speed above some limit, the intact delivery of organic chemicals or other volatiles to a planet requires the impact speed to be below some other limit such that a significant fraction of that material escapes destruction. Thus the two opposite ends of the impact speed distributions are the regions of interest in the bioastronomical context, whereas much modelling work on impacts delivers, or makes use of, only the mean speed. Here the probability distributions of impact speeds upon Mars are calculated for (i) the orbital distribution of known asteroids; and (ii) the expected distribution of near-parabolic cometary orbits. It is found that cometary impacts are far more likely to eject rocks from Mars (over 99 percent of the cometary impacts are at speeds above 20 km/sec, but at most 5 percent of the asteroidal impacts); paradoxically, the objects impacting at speeds low enough to make organic/volatile survival possible (the asteroids) are those which are depleted in such species.

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