Research on P2P streaming media is a hot topic in the area of Internet technology. It has emerged as a promising technique. This new paradigm brings a number of unique advantages such as scalability, ...resilience and also effectiveness in coping with dynamics and heterogeneity. However, There are also many problems in P2P streaming media systems using traditional tree-based topology such as the bandwidth limits between parents and child nodes; node's joining or leaving has a great effect on robustness of tree-based topology. This paper will introduce a method of measuring the robustness of tree-based topology: using network measurement, we observe and record the bandwidth between all the nodes, analyses the correlation between all the sibling flows, measure the robustness of tree-based topology. And the result shows that in the Tree-based topology, the different links which have similar routing paths would share the bandwidth bottleneck, reduce the robustness of the Tree-based topology.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Performance Analysis of Round Robin Load Balancing in SDN Omer, Yassin Abdulkarim Hamdalla; Mustafa, Amin Babiker A.; Abdalla, Ashraf G.
2020 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE),
2021-Feb.-26
Conference Proceeding
Software Define Network (SDN) is taking place as the new networking approach which aimed to enhance the performance and reduce costs of various networking systems over the traditional networks which ...still facing the poor utilization of resources. This paper presents a novel technique by implementing the load balancer in SDN, to improve throughput utilization. Mininet software is used to build the network environment. Moreover, the floodlight controller and Python programming language were used to implement. Two scenarios were tested and evaluated, before and after the load balancer using IPerf for TCP and UDP protocols. The results show a huge increment in network performance when using the load balancer with SDN.
Software-defined networks initiate the era of a programmable network by segregating the control plane and data plane. It eliminates the bottleneck of programming each device manually and brace the ...concept of logical centralization. The primary element of the control plane is the controller where the intelligence of the entire network is implemented. There are a variety of controllers available in the market such as RYU, ODL, FloodLight, Beacon, IRIS, ONOS, OpenMUL, Mastero, POX, NOX, Libfliud, and many more. All the controllers behave differently depending on the number of nodes, topology structure, configuration environment, type of traffic flow, etc. To explore the capabilities of the controller and to measure the performance capabilities, proper comparative performance evaluation is highly demanded. So, this paper evaluates the seven widely used controllers in the market against several performance parameters such as TCP-Throughput, UDP-throughput, jitter, latency, and the number of hosts. To carry out this evaluation, research tools such as Mininet, iperf, Gnuplot have been used. At last, in-depth discussion is carried out and results are represented in the form of graphs for better analysis and understanding. Obtained results give in-depth information about the controllers performance that which controllers perform best based on the number of switches and hosts.
Software Defined Network is the booming area of research in the domain of networking. With growing number of devices connecting to the global village of internet, it becomes inevitable to adapt to ...any new technology before testing its scalability in presence of dynamic circumstances. While a lot of research is going on to provide solution to overcome the limitations of the traditional network, it gives a call to research community to test the applicability and caliber to withstand the fault tolerance of the provided solution in the form of SDN Controllers. Out of existing multiple controllers providing the SDN functionalities to the network, one of the stellar controllers is Floodlight Controller. This paper is a contribution towards performance evaluation of scalability of the Floodlight Controller by implementing multiple scenarios experimented on the simulation tool of Mininet, Floodlight Controller and iPerf. Floodlight Controller is tested in the simulation environment by observing throughput and latency parameters of the controller and checked its performance in dynamic networking conditions over Mesh topology by exponentially increasing the number of nodes.
DCnet: Evaluation Of A New Data Center Network Architecture Hardin, Benjamin; Comer, Douglas; Rastegarnia, Adib
2023 26th Conference on Innovation in Clouds, Internet and Networks and Workshops (ICIN),
2023-March-6
Conference Proceeding
Data center workloads increasingly rely on low-latency east-west traffic while also being able to dynamically move hosts for load balancing purposes. The expansion of Software-Defined Networking has ...made reconfiguring networks to accommodate diverse workloads possible and efficient. However, reestablishing communication after host migration can impose a relatively long delay. DCnet is a previously proposed architecture that assigns each host a virtual MAC address so it can move within the data center while retaining its original MAC and IP addresses. This paper evaluates the DCnet approach and compares its performance to traditional SDN reactive forwarding flow rule management. Latency and throughput are evaluated in an emulated environment utilizing Mininet, ONOS, and iPerf software. We show that DCnet matches reactive forwarding latency and steady-state throughput while improving on initial first-ping latency.
Internet is a one pause solution enabling ubiquitary access to all our digital needs. Although people are moving towards massive usage over internet to access digital resources, difficult to ...configure networks to the dynamic change at the backend. To accelerate management and configuration of new network policies, rules, criteria and deploying it to network appliances, network hardware, network software, SDN was recently proposed phenomena to address the same. SDN helps network operator to separate logic driven controller of the network appliance from its underlying hardware layer and allow network operator to program to meet its changing demands. To address the limitations over traditional network, it is as worth as to check the pertinence and capability to confront the fault tolerance attribute of open flow controllers in SDN. SDN open flow Controller's performance acts one of the key aspect towards the accomplishment of the SDN objective which it meant for. In this paper, we state steps for the observations which can be carried out by using various open flow SDN controllers like POX, Open Daylight, Floodlight, Ryu using open flow protocol acting as southbound API interfacing to data plane on an emulation environment like mininet by analyzing throughput of various open flow controllers and to check their performance over mesh topology with respect to increase no. of nodes proportionally, comparing them at the last for optimized solution.
Software-Defined Network (SDN) has pioneered the era of a programmable network where it defines control plane and data plane which become two distinct cores. The technology bolsters the concept of ...logical centralization by eradicating the concept of individually programmed devices and network virtualization. The control plane acts as a controller that directs the activities and configurations applied within a network. SDN is not open source however the SDN controller is an open-source application. All controllers mentioned possess distinct pros and cons depending on the SDN environment. One of the most threatening flaws SDN exposed to is Distributed Denial of Service attack (DDoS). It is because once a controller is attacked the whole network might collapse. To explore the resilience proficiency of SDN controllers towards DDoS attacks, researchers performed a security assessment by evaluating controllers' performance against DDoS attacks. The experiment measured 5 network parameters against the 6 most widely used SDN controllers. Finally, a thorough analysis is done on the obtained results that are graphically presented. The conclusion is drawn ranking the controllers based on the capabilities of handling DDoS attack events and their reaction.
BMKG (Meteorology, Climatology and Geophysics Agency) is an organization with a service function that provides information on Meteorology, Climatology, Air Quality, and Geophysics. Good data ...management is the main focus of BMKG's business activities to produce fast, precise, accurate, wide-coverage, and understandable information. A reliable and speedy Local Area Network (LAN) and Wide Area Network (WAN) communication infrastructure can help analyze data and disseminate public information. To get the quality of the communication network system, the authors measure network parameters on the network infrastructure at BMKG, such as access speed and transmission capacity, from the sending point to the receiving point. The parameters used are jitter, delay (latency), packet loss and throughput. This measurement uses the Iperf/Jperf tools to measure throughput bandwidth and packet loss in a network system. This QoS parameter follows the standards set by the Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON). The results and analysis of QoS measurements show that, in general, some buildings during office hours and non-office hours show good results. To excellent results, ideally the TIPHON standard, the authors describe the proposed integrated framework, including the End-User layer, the application layer, the system layer, the investment layer and the hardware layer. The proposed integrated framework is a concept to improve the quality of a better network. So that, in general, it can produce the outcome of improving the performance of the network system, especially in the BMKG and can minimize economic losses to social impacts, in this case, a disaster
This paper focuses on the experimental aspect of short range communication between a moving vehicle and a stationary receiver. The accumulated measurements of signal to noise ratio fit a single line ...of site model rather well with the implication that the communications channel will function best as the distance between the radios is reduced. However, measurements of both bandwidth and packet loss suggest that when the vehicle passes nearby the stationary receiver at approximately the planned speeds (10 or 20 MPH) that the communication channel throughput is reduced.
IPv6 is the next-generation Internet Protocol (IP) which designed to replace the current IPv4.The designed protocol is to manage the problem of insufficient IP address for online users. IPv6 is new ...technology, thus it is not matured and does it suits to the real online applications in any applied network. This paper evaluates the performance of End-to-End (E2E) IPv6 over wired and Wi-Fi broadband access compared with IPv4. Real network environment for Internet Service Provider (ISP) is set up to collect empirical and comprehensive data performance of Dual-Stack architecture. The Client-Server test-bed is simulated as E2E Dual-Stack IP implementation. Network performance is measured on Round Trip Time (RTT), File Transfer Protocol (FTP) and Iperftest. All performance are tested with wired and Wi-Fi network. Result presents that Dual-Stack IP method is more reliable protocol to use in a real network environment where analysis presents that IPv6 has throughput higher and much better in transaction rate based on throughput and response time with RTT, FTP and Iperf analysis results than IPv4. This performance comparison presents that E2E network environments and equipment are now IPv6 ready that successfully with Dual-Stack IPv6 protocol method. In term of throughput performance, other ISPs may use this result as a benchmark to adopt IPv6 Dual-Stack method in their network.
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