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Pollution attacks are one of the major concerns facing P2P networks. They have a tremendous impact on push-based fully connected overlays, in which each peer receives an exclusive chunk from the source and is also the only one responsible for relaying it to the rest of the peers. In this study, we propose a novel technique to identify and expel malicious peers which involves using trusted peers, software-defined networking (SDN) and proactive moving target defense. Experiments to obtain the accuracy and effectiveness of the implemented methods, as well as an analysis of the performance concerns, were carried out through simulation using a Mininet network emulator. The experiments demonstrate the feasibility of our proposal, which provides high rates of detection, not only in pure SDN environments but also in mixed ones.

espanolUna de las dificultades para la realizacion de pruebas de aplicaciones de analisis de datos obtenidos por dispositivos IoT, es el costo economico y temporal de la construccion de la red IoT, para mitigar estos costos y agilizar el desarrollo de aplicaciones IoT y analiticas, se propone NIOTE, un emulador de redes IoT que genera datos de sensores y actuadores diferentes tipos de dispositivos, faciles de configurar y desplegar sobre protocolos TCP/IP y MQTT, esta herramienta sirve como apoyo en ambientes academicos y validacion conceptual en el diseno de redes IoT. El uso del emulador facilitara el desarrollo de este tipo de aplicaciones, optimizando el tiempo de desarrollo y mejorando la calidad final del producto. Para desarrollar este emulador se utilizaron conceptos de programacion orientada a objetos, arquitectura y patrones de diseno de software, que permitieron emular el comportamiento de los dispositivos IoT que se encuentran dentro de una red especifica, donde se puede agregar la cantidad de dispositivos que sean necesarios, modelar y disenar cualquier red deseada. Cada red creada envia datos que son almacenados de forma local para simular el proceso de transportacion de los datos a una plataforma, si se desease aplicar, a traves de un formato especifico en el que la informacion sera enviada para hacer Analisis de Datos. EnglishOne of the difficulties for the development and testing of data analysis applications used by IoT devices is the economic and temporary cost of building the IoT network, to mitigate these costs and expedite the development of IoT and analytical applications, it is proposed NIOTE, an IoT network emulator that generates sensor and actuator data from different devices that are easy to configure and deploy over TCP/IP and MQTT protocols, this tool serves as support in academic environments and conceptual validation in the design of IoT networks. The emulator facilitates the development of this type of application, optimizing the development time and improving the final quality of the product. Object-oriented programming concepts, architecture, and software design patterns are used to develop this emulator, which allows us to emulate the behavior of IoT devices that are inside a specific network, where you can add the number of necessary devices, model and design any network. Each network sends data that is stored locally to emulate the process of transporting the data to a platform, through a specific format and will be sent to perform Data Analysis.

В статье рассмотрены теоретические сведения о сетевом оборудовании и протоколах их взаимодействия, о реализуемых аппаратных средствах, таких как коммутаторы и маршрутизаторы, в связи с активным распространением такой профессии, как программист. Внедрение большого количества информационного оборудования в жизнь людей привело к глобальной трансформации цифрового пространства. Из-за цифровой трансформации, необходимости осуществления бесперебойной и качественной отправки информации на дальние расстояния с минимальными потерями, необходимости внедрения теоретического и практического материала о современных технологиях сетей передачи информационных данных разрабатываются принципы построения систем и сетей телекоммуникаций, производится совершенствование специализированных аппаратных средств, предназначенных для решения вопросов конфигурирования, проверки функциональности сетей. В работе авторами проанализирована востребованность передачи информационных данных на сегодняшний день, отмечены принципы межсетевого взаимодействия и построения локальных сетей, отображен переработанный и дополненный материал пособий. Также представлены сведения о функционировании устройств на примере программно-аппаратных средств фирмы «CISCO». На основании изученных данных была разработана пошаговая инструкция для обучения студентов технологиям безопасности сети, получения теоретических знаний об основных командах, используемых в операционной системе «Cisco IOS», и о понятии конфигурирования. Обозначено, что для грамотной настройки сетевого оборудования необходимо использование программного эмулятора сети под названием «Cisco Packet Tracer». На основе проведенных данных была составлена лабораторная работа, позволяющая развивать профессиональные компетенции молодых специалистов. Благодаря представленной работе инженеры рассматривают особенности работы коммутаторов и маршрутизаторов, изучают маршрутизацию сетей и других программно-аппаратных устройств., The article discusses theoretical information about network equipment and protocols of their interaction, about implemented hardware, such as switches and routers in connection with the active spread of such a profession as a programmer. The introduction of a large amount of information equipment into people's lives has led to a global transformation of the digital space. Due to digital transformation, the need for uninterrupted and high-quality sending of information over long distances with minimal losses, the need to introduce theoretical and practical material on modern technologies of information data transmission networks, principles of building telecommunications systems and networks are being developed, specialized hardware is being improved to solve configuration issues, verify the functionality of networks. In the work, the authors analyzed the relevance of information data transmission to date, noted the principles of inter-network interaction and the construction of local networks, displayed the revised and supplemented material of manuals. Information about the functioning of devices is also presented on the example of CISCO software and hardware. Based on the studied data, a step-by-step instruction was developed for teaching students network security technologies, obtaining theoretical knowledge about the basic commands used in the Cisco IOS operating system, and about the concept of configuration. It is indicated that for proper configuration of network equipment, it is necessary to use a network software emulator called Cisco Packet Tracer. Based on the conducted data, a laboratory work was compiled that allows developing the professional competencies of young specialists. Thanks to the presented work, engineers consider the features of switches and routers, study the routing of networks and other hardware and software devices.

For Audio and Video (AV) Production, time synchronization between different devices is an important part to achieve a high-quality AV production. A well-established method for synchronizing devices is the use of clock signals like wordclock, which might not be a convenient solution when the spatial distance between devices increases. This work is aiming to introduce to the possibility to use an IP-based standard to perform the time synchronization between different devices: IEEE 1588 Precision-Time-Protocol (PTP). Therefore the protocol is evaluated according to his performance under different network conditions using a network emulator and a test-scenario through a Wide-Area-Network. The performance of the time synchronization using PTP shows promising results.

A virtual laboratory with a network emulator environment using NetKit is one of series of basic network laboratories on basic computer network competencies where students are given practical trial opportunities at low costs and little effort in their implementation. Teaching computer network subjects to be easily understood by students needs an instructional media as a tool in delivering material. This media uses computer virtualization technology, i.e. creating a virtual laboratory, as a means of students in conducting experiments from the material that has been obtained. In virtual laboratories it is possible to implement network topology designs based on actual network topologies. This implementation is used as a testing tool before the network topology is implemented on the actual network. Therefore, errors can be identified first without disturbing the system that is already running. For testing, the students are given training using a basic network design consisting of the implementation of routing tests, firewalls, ftp server implementation and web server. This paper is aimed at describing ways to develop a virtual laboratory with a network emulator environment using NetKit. Moreover, several exercises on network topology implementation that are applied directly to the real world with NetKit are introduced, such as describing laboratory settings, describing the main parts of the lab, illustrating lab instructions, and reporting lab feeds.

International audience; In this paper, a novel model-based approach to verify dynamic networks is proposed. The network topology and dynamic link parameters are described as a many sorted first order logic formula, that is verified by an SMT-solver (z3 in our case) with respect to a set of properties. The formula is also used for run-time network verification when a given static network instance is implemented. Preliminary experiments showcase the expressiveness and current limitations of the proposed approach.

In a companion paper [1], we introduced Latency-Based Forwarding (LBF) as a new approach to achieving stringent end-to-end latency objectives with precisely specified lower and upper bounds. In order to accomplish this, a new forwarding protocol is used that can carry latency objectives as part of packet metadata and take differentiated actions at network nodes depending on a packet’s remaining latency budget, its destination, and the latency encountered so far. LBF is intended to enable new emerging network applications such as Industry 4.0, haptic applications, and holographic-type communications which require support for corresponding high-precision network latency services that are not possible with current best-effort Internet or QoS mechanisms.This demo shows a near real-time, lightweight network emulator for LBF. Individual network nodes are emulated by separate cores on a host. As part of the demo, we vary the end-to-end latency objectives of multiple competing simultaneous flows and compare minimum, maximum, average packet latencies across different scenarios. This demonstrates the behavior and effectiveness of LBF and how it affects flows and packets.

In this chapter, we provide a detailed introduction of the Mininet network emulator. Beginning with background motivation for network emulation, we provide a high-level overview of the Mininet emulator and contrast it to other popular software-based emulation approaches. We follow this discussion with a description of the common workflow for employing Mininet, including several code examples that highlight the salient commands needed to interface with the emulator. We comprehensively explain the in-depth features that enable the functionalities of Mininet to describe its underlying mechanisms for lightweight network simulation. We conclude with an example showcasing the different features discussed throughout this chapter.

In this paper, we compare the performance of IT-SDN framework and Mininet-WiFi OpenFlow Network Emulator for Software-Defined Wireless Networks. The topology consists of a number of source nodes generating traffic towards a sink node. The controller sets up flow rules for the packets, following which the switches route the wireless traffic. The communication between the controller and the switches is governed by the underlying southbound protocol. The performance of IT-SDN and Mininet-WiFi for the stated network scenario was measured using the metrics: end-to-end delay, throughput, packet delivery ratio and control overhead. The results show that IT-SDN outperforms Mininet-WiFi in terms of the above mentioned metrics for the given wireless network scenario.

Part 5: Distributed Applications; International audience; The authors investigate a network emulator performance versus the variability of hardware/software features of the hosting machine. In particular, the evaluation of static and dynamic delays is carried out considering several testing conditions. In detail, as concerns emulator configurations, the influence of packet rates on imposed delays values and distributions are analyzed; as for hardware and software, different values for RAM, CPU cores and operating system are tested. Results, reported as mean values and standard deviation, show two main trends: the resource availability has an important impact on the emulation stability and on the measurement repeatability; secondly, higher differences in performance levels for low imposed delay values, which is the most interesting zone in a few milliseconds latency world. The paper aims to show that the capability to emulate network impairments is generally influenced by hardware/software capabilities and it must be considered when using network emulation for specific test purposes.

This paper investigates the notion of software-defined networking (SDN), whose southbound interface can be applied through the OpenFlow protocol. The aim of this study is to discover the SDN architecture and the OpenFlow standard in some details. In addition, to look at implementing their tools on the oil company network. The simulation is done using mixing between a network emulator Mininet and Ryu controller with using python scripts.

This article deals with development of a network emulator of transmission parameters of data networks working with the TCP/IP protocol suite. The article contains a specification of transmission parameters of data networks and a specification of currently developed open-source systems, which can be used to emulate transmission parameters of data networks. Further, the design and implementation of the network emulator is described. The proposed network emulator uses Traffic Control, NetEm, iptables, web service and Apache JMeter. The graphical user interface (GUI) of the network emulator is implemented by a web service and a module to the GUI of the stress tester Apache JMeter. The article also deals with measurement of transmission parameters of data networks using the developed network emulator and the Station A and Station B. The measured values are discussed.

Land tactical radio networks are used in military operations to create communication channels for tactical units at the force’s edge. These radios must work in a dynamic, contested environment where bandwidth is usually at a premium due to the limited radio capabilities and the many demands placed on the system. It is important therefore to manage the networks as efficiently as possible. Measuring the state and performance of the network is required to achieve this, which is a non-trivial exercise due to the complexity and variability of network designs. Any measurement schema must take into consideration the implementation, state and use of the radio network. Previous work in this area has concentrated on commercially available networks rather than the bespoke networks that are often employed in the military. As part of the SMARTNet research programme, this paper looks at techniques that are currently available for measuring a tactical network’s performance, investigates what other work needs to be done, and suggests a way forward. A simple network has been analysed mathematically and then emulated using the Enhanced Mobile Ad-hoc Network Emulator (EMANE) to highlight the issues discussed in this paper.

The advent of internet has led to the formation of a totally digitized environment, where each and everything is constantly in connection & can be easily accessed from anywhere. Traditional IP networks are difficult to understand and manage. Configuring the networks as per the already defined policies & making changes to it to react to issues faced has become difficult. The vertical integration of current networks adds to the difficulties. Software-Defined Network (SDN) is a new paradigm that promises to change and solve the problem. SDN breaks network into traceable pieces, thus making it less demanding to make & present new changes in networking, making network management & network evolution simpler. In SDN, load balancing is a brilliant technology as it can save power & improve the utilization of resources. This research focuses on analyzing the load and data in SDN for various distributed network topologies. Various network emulator and packet tracker tools have been used in the paper for generating statics.

In many emerging data retrieval applications, in response to queries, consumers are interested in getting a summarized version of content quickly rather than retrieving all available data. Recently, Named Data Networks (NDN) have been considered for efficient transfer of summarized information, but the research is still in its infancy. In this paper, we propose NEST, a novel transport protocol for delivering extractive summaries of a dataset distributed across multiple producers over NDN. The goal is to exploit diversity in network conditions between a consumer and different producers towards delivering the consumer-specified summary while minimizing latency. NEST first creates a unified hierarchical representation of the available distributed content using state-of-the-art distributed clustering. Then, using this representation of the dataset, the protocol creates interest messages based on which consumers can opportunistically retrieve representative data objects from the best producers while adapting to dynamic network conditions by capitalizing on the flexibility offered by the NDN infrastructure. We implement NEST on the Mini-NDN network emulator and evaluate its performance using datasets collected from Twitter. Our experimental results show that NEST takes advantage of producer diversity achieving large latency reduction gains of up to 50% compared to baseline protocols.

Part 3: Network Deployment; International audience; Network emulators are used in many contexts of communication networks for the design and the development of network management and routing strategies as well as for the tuning of multimedia services as Voice Over IP, video streaming, TV on-demand, to cite a few. These devices are generally used for modifying, in a controlled way, data traffic flows by changing, in real time, several critical parameters as delay, packet loss percentage, throughput, and so on. Due to very attractive features as high versatility and configurability and low cost, the solutions based on general purpose hardware platforms and free/open-source software are the most ones adopted in the practice for implementing network emulators. Nevertheless, in such architectures the complex interaction of software and hardware sections should affect the accuracy and repeatability of such systems in correctly emulating the desired network behaviors. Consequently, a suitable pre-characterization stage of such kind of network emulators should be performed before they are used. In this framework, the paper describes a methodological approach for designing suitable test-bed and measurement procedure able to reliably characterize the performance of such systems. The final aim of the research activity is to provide a suitable uncertainty model and a confidence level for the parameters provided by network emulators, which can drive the final users in more reliably analyzing the experimental results coming from their test campaigns and which involve the network emulators.

Software-Defined Networking (SDN) is the new trend in the networking field. The separation of the control plane from the forwarding plane has enabled the complete programmability of the network, since the control plane and the forwarding plane are decoupled. An API for POX controller is firewall. A modification of the Learning layer 3 switch code for POX controller is done for a tree topology of depth 3 by using mininet network emulator and the packet flow between the hosts is controlled according to the rules inserted in the Learning switch using OpenFlow controller.

Software-Defined Network is a new evolving networking technology, separating the control plane from the forwarding plane. The Routing functionality and the API for the applications plane are on the Controller. One such application on POX controller is firewall. A modification of the Learning layer 2 switch code for POX controller is done for a tree topology of depth 3 by using mininet network emulator and the packet flow between the hosts is controlled according to the rules inserted in the Learning switch.

Demands for higher data rate have always been increasing. The most prominent cause for this fact is the new always-connected lifestyle together with the emerging massive connected objects (i.e. IoT) and new bandwidth-hungry services. Depending on the technological aspects of the services and the underlying infrastructure, such requirement might need different strategies. In this work, we investigate strategies to increase data rate in wireless LAN by bundling available resources in different networks to be used by applications. We spesifically focus on the so-called bicasting mechanism in some scenarios which are run inside Mininet-Wifi, an SDN-based Wi-Fi network emulator. Several parameters indicating rate performance have been evaluated and presented. Though the main purpose of the bicasting has been achieved, our early result shows that a fine-tuned strategy might be necessary to further improve performance.

International audience; In this work, we show how to use HINT, a real-time event-driven network emulator, to support the development process of opportunistic applications. In this demo, we use this emulator in conjunction with an example Android chat application to demonstrate its features.

The Tor network is an open network that helps its users to defend against adversaries who performed traffic analysis and threatens the personal privacy and confidential security. Tor protects its users by preventing the sites they visit from revealing their physical location. As the number of Tor user increases, the performance of Tor degrades badly due to Tor's scheduler is not fairly distributing the traffic in Tor. In this paper, we highlight the problems in Tor performance due to scheduling design of Tor, which degrades the web and bulk traffic performances that multiplexes on a single TCP connection. To solve these problems, this paper emphasis on applying a simple method of active circuit switching on Tor application level, in order to distribute the bulk and web traffics on different TCP connections when congestion is detected in the Tor network. We evaluate our modified switching algorithm with the other default schedulers in Tor, such as vanilla Tor and priority EWMA scheduler in a shadow wide deployment network emulator. The experimental results show that our switching technique considerably offers stable improvement of traffic performance for all the web and bulk traffics.

In this paper we study the case of Critical Infrastructures (CIs), and especially power grid systems, which nowadays rely on computers and the Internet for their operation. We propose a combinatorial method for automatic detection and classification of faults and cyber-attacks, when there is limited data from the power grid nodes due to cyber implications. We design an experimental platform consisting of a power grid simulator and a cyber network emulator in order to demonstrate the efficiency of the proposed method.

The application of neural networks for detection of electrostimulative electromyograms of patients with normal state of the neuromuscular system and for muscular syndromes such as carpal tunnel syndrome, cubital tunnel syndrome, and demyelinating polyneuropathy is discussed. The input parameters for the network emulator NeuroPro and a three-layer perceptron network with direct communications are defined. The possibility of diagnostic analysis of EMG signals is estimated.

SUMMARY TCP Friendly Rate Control (TFRC) has been widely used in the Internet multimedia streaming applications. However, performance of traditional TFRC algorithm degrades significantly when d eployed over wireless networks. Although numerous TFRC variants have been proposed to improve the performance of TFRC over wireless networks, designing a TFRC algorithm with graceful performance both in throughput and fairness still remains a great challenge. In this paper, a novel T FRC algorithm, named TFRC-FIT, is proposed to improve the performance of TFRC over wireless environments. In the proposed approach, the behavior of multiple TFRC flows is simulated in single connection, while the number of simulated flows is adjusted by the network queuing delay. Thr ough this mechanism, TFRC-FIT can fully utilize the capacity of wireless networks, while maintaining good fairness and TCP friendliness. Both theoretical analysis and extensive experiments over hardware network emulator, Planetlab test bed as well as commercial 3G wireless networks are carried out to characterize and validate the performance of our proposed approach.

In recent years there has been a predominant increase in multimedia services such as live streaming, Video on Demand (VoD), video conferencing, videos for the learning. Streaming of high quality videos has become a challenge for service providers to enhance the user’s watching experience. The service providers cannot guarantee the perceived quality. In order to enhance the user’s expectations, it is also important to estimate the quality of video perceived by the user. There are different video streaming protocols that are used to stream from server to client. In this research, we aren’t focused on the user’s experience. We are mainly focused on the performance behavior of the protocols. In this study, we investigate the performance of the HTTP, RTSP and WebRTC protocols when streaming is carried out for H.265 encoder. The study addresses for the objective assessment of different protocols over VoD streaming at the network and application layers. Packet loss and delay variations are altered at the network layer using network emulator NetEm when streaming from server to client. The metrics at the network layer and application layer are collected and analyzed. The video is streamed from server to a client, the quality of the video is checked by some of the users. The research method has been carried out using an experimental testbed. The metrics such as packet counts at network layer and stream bitrate at application layer are collected for HTTP, RTSP and WebRTC protocols. Variable delays and packet losses are injected into the network to emulate real world. Based on the results obtained, it was found at the application layer that, out of the three protocols, HTTP, RTSP and WebRTC, the stream bitrate of the video transmitted using HTTP was less when compared to the other. Hence, HTTP performs better in the application layer. At the network layer, the packet counts of the video transmitted were collected using TCP port for HTTP and UDP port for RTSP and WebRTC protocols. The performance of HTTP was found to be stable in most of the scenarios. On comparing RTSP and WebRTC, the number of packet counts collected were more in number for RTSP when compared to WebRTC. This is because, the protocol and also the streamer are using more resources to transmit the video. Hence, both the protocols RTSP and WebRTC are performing better relatively.

This article reviews the performance of an optical-label-controlled packet routing node as implemented in the European FP5-IST STOLAS project including a set of general engineering rules. Experimental networking scenarios and results from a STOLAS based network emulator supporting optical overspill routing are presented.

Eden izmed načinov za upravljanje sistemov inteligentnih domov je uporaba uporabniških vmesnikov. Z njimi lahko upravljamo inteligentni dom povsod, kjer imamo na voljo internetno povezavo. Različni parametri omrežja s katerim smo povezani, lahko povzročajo slabšo odzivnost sistema, zato pa nastane problem, saj potrebujemo odziv v realnem času. V diplomski nalogi so predstavljeni rezultati testiranja odzivov uporabnikov na simulacije inteligentnega doma pri različnih vrednostih prametrov omrežja. Parametri, ki smo jih spreminjali so bili: zakasnitve, potresavanje, napake in izgube. Testiranja so bila opravljena v treh omrežjih, in sicer: ADSL, Wi-Fi in 3G. Za izvedbo testiranj smo uporabili simuliralator inteligentnega doma in računalnik, na katerem sta bili naloženi aplikacija za upravljanje sistema in emulator omrežja, s katerim smo spreminjali parametre omrežja. One of the ways to control intelligent home systems is with the use of user interfaces. They can be controlled from anywhere, if there is internet connection available. Various parameters of the network to which we are connected can reduce the responsiveness of the system. This causes problems since we need a system response in real time. This thesis presents test results involving user responses to smart home simulations for different values of the network parameters. The changing parameters were: delay, jitter, error and loss. Tests were carried out in three networks: ADSL, Wi-Fi and 3G. For the implementation of the tests, an intelligent home simulator and a computer, having an application for controlling intelligent home system and a network emulator for changing network parameters installed, were used.

To well design remotely controlled industrial plants through the Internet, it is mandatory to know and use the Internet features and parameters. This paper describes how to sense Internet delays and packet losses in real time to reliably reproduce the global system in a laboratory environment. In this work we present a system that performs as a sensor of Internet delays and packet losses and as an actuator that reproduces these parameters into a local data flow. The paper shows how to solve some usual problems like the spontaneous high delay problem, and it presents some comparative results with other network emulator.

There has been an enormous growth in the Internet usage in recent years, fueled by the increasing number of multimedia applications and widespread availability of World Wide Web (WWW). The end-user generally accesses these applications through web browsing activities. These time-critical services often suffer from the delays ranging from small chunks to long peaks which can have severe implications on the Quality of Experience (QoE). Hence, it is worthwhile to identify the impact of different variations of delay on the end-user QoE. This research focused on the end-user QoE for three different distributions of delays occurring during an e-commerce shopping experiment. By keeping the overall waiting time of every sessions same, the study shows that the end-user QoE is different for different variety of delays. And the research also concludes that, the users prefer small frequently occurring delays as compared to the long rarely occurring delays within a task-driven web browsing session.

Contemporary Next Generation Networks (NGN) are mainly built on the Internet Protocol (IP) and Ethernet. Major challenge for emerging types of wired and wireless IP-based networks is to provide an adequate Quality of Service (QoS) for different services. The quality of evaluation requires a detailed knowledge of the performance requirements for particular services and applications. The paper is primarily oriented to the end-to-end testing for the Ethernet-based terminal equipment. The low cost Ethernet network emulator was developed on the Department of Telecommunication Technology of the Faculty of Electrical Engineering of the Czech Technical University in Prague. The extension for emulation network with the E1 interfaces and TDM over IP transmission can be used with external converters.

In recent year’s multimedia services like Video-on-Demand (VoD) and mobile video streaming, videos for e-learning, video conferencing are growing predominantly, and the user’s expectations towards the quality video are increasing as the technology is developing. There are different video streaming protocols are used for streaming videos from servers to the client. Recently, Adobe Systems developed Real Time Messaging Protocol (RTMP) (proprietary) for streaming audio, video and data over the Internet between a Flash player and a Media Server. On the other hand, Hypertext Transfer Protocol (HTTP) is a well-known and efficient protocol; it has achieved the popularity in multimedia services like VoD. Hence, a qualitative research is to be performed on comparing the two Transmission Control Protocol (TCP) based protocols, under sustainable network conditions for tracing the QoE results from acquired User Ratings (UR). This thesis investigates the quality assets on network parameters over VoD streaming. The study addresses the subjective assessment of RTMP and HTTP streaming protocols, by varying network parameters (like packet loss and delay variation) in a controlled and repeatable environment. The packet loss and delay variation are altered by the network emulator NetEm [1, 2] in between the server and client. The video collected at the client end are evaluated by using subjective assessment, MOS (Mean Opinion Score), following the international Telecommunication Union (ITU) Recommendations [3]. Based on our results it was found that HTTP is having better ratings, when there are more packet losses compared to RTMP. RTMP accomplished better at minimum loss of packets. However, in the case of delay performance of HTTP is better than RTMP.