Performance Study of a Software Defined Network Emulator

International Journal of Advances in Applied Sciences (IJAAS), 2020

In software defined network the network infrastructure layer where the entire network devices, like switches and routers reside is connected with the separate controller layer with the help of standard called OpenFlow. The open flow standard enables different vendor devices like juniper, cisco and Huawei switch to connect to the controller or a software program. The software program controls and manages the network devices. Therefore, software defined network architecture makes the network flexible, cost effective and manageable, enables dynamic provisioning of bandwidth, dynamic scale out and dynamic scale in compared to the traditional network. In this study, the architectures and principles of software defined network is explored by emulating the software defined network employing a mininet.

TELKOMNIKA, 2023

Traditional networking solutions are unable to meet modern computing needs due to the expanding popularity of the internet, which requires increased agility and flexibility. To meet these objectives, software-defined networking (SDN) arises. A controller is a major element that will determine if SDN succeeds or fails. Various current SDN controllers in many sectors must be evaluated and compared. The performance of two well-known SDN controllers, POX and Ryu, is evaluated in this research. We used the Mininet-WiFi emulator to implement our work and the distributed internet traffic generator (D-ITG) to assess the aforementioned controllers using delay, jitter, packet loss, and throughput metrics. What is new in our research is the study of network performance in two different types of transmission media: wired and wireless. The speed of the wired medium was chosen to be fast ethernet, which was not previously studied. In addition, the size of the packet was varied among 128, 256, 512, and 1,024 bytes. The comparison was performed on three topologies (single, linear, and tree). The experimental results showed that Ryu offers significantly lower latency, jitter, and packet loss than POX in most scenarios. Also, the Ryu controller has higher throughput than POX, especially on wireless networks.

IEEE Access, 2018

Software Defined Networking (SDN) is a paradigm that emerged in the networking industry recently. Many standardization activities are still ongoing and having the right tools to support these efforts is important. The Wireless Transport Emulator (WTE) was designed and implemented for supporting the standardization endeavors of the Wireless Transport Project, part of the Open Networking Foundation (ONF). WTE uses different technologies in order to simulate a wireless transport network, consisting of emulated Network Elements, that expose two information models proposed by ONF: the Microwave Information Model, TR-532, and the Core Information Model, TR-512. The tool is also extremely useful for SDN application developers that want to create applications using the aforementioned information models, because it eliminates their need of owning real, expensive, wireless transport devices in order to test the functionality that they are developing. This paper describes the architecture of the WTE and then evaluates the simulator with regards to some characteristics. Based on the measurements, conclusions about the capabilities of the simulator are drawn. INDEX TERMS Software-defined networking, wireless transport, open networking foundation.

2015

In this paper an evaluation of an SDN emulation tool called Mininet is conducted. Tests were conducted to study Mininnet limitations related to the simulation environment, resource capabilities. To evaluate the later, the scalability of Mininet in term of creating many topologies is tested with varying number of nodes and two different environment scenarios. Results show that the simulation environment has a remarkable effect on the required time for building a topology, for instance, the powerful resources scenario needed only 0.19 sec, whereas, 5.611 sec were needed when the resources were less. However, the required time were increased in both scenarios when the number of nodes was increased into 242.842 and 3718.117 sec for the powerful and less capabilities resources respectively.

Wireless Personal Communications, 2015

Future internet is required to be flexible, scalable, reliable, secure and having other advanced features. Software Defined Networking (SDN) fulfills most of the task to achieve require functioning. OpenFlow technology is the first standard for SDN which executes the protocols based on the required application. It is also capable for controlling multiple hardware or software switches from a single controller. This can be achieved by the separation of data plane and control plane from a network core devices. In this paper, a proposed architecture of an OpenFlow based small campus network is deployed. The performance analysis for a custom designed network model is achieved by executing few networking test on a defined nodes using network control protocols. The performance analysis of bandwidth, throughput and other network parameters between nodes for Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) connection is also performed. A custom model has been designed using a prototype network emulator that is Mininet and the code for network topology is executed in Python script.

Scientific Journal of Informatics

Purpose: Computer networks and the Internet are changing the way we communicate, learn, work, and even play. Conventional computer networks are not smart enough towards processes that contribute to improving online control transaction of services and demand for unlimited communication services. Hence, computer networking has to go smart.Methods: This paper explores the effect of different computer networking types - traditional computer networking (D0) and Software-Defined Networking (D1). The paper combined traditional computer networking (D0) with Software-Defined Network (D2) running applications (A1, A2, A3, A4 and A5) with the host sending 5 packets (P1, P2, P3, P4 and P5) across the networks emulated using Mininet network emulation to observe various performance parameters on the network.Result: It was observed that Application A1 recorded the highest bandwidth, throughput and latency. The least bandwidth, throughput and latency were observed in A4. The result showed that belo...

2014

Mininet is an emulator for deploying large networks on the limited resources of a simple single Computer or Virtual Machine. Mininet has been created for enabling research in Software Defined Networking (SDN) and OpenFlow. Mininet emulator allows running unmodified code interactively on virtual hardware on a simple PC. It provides convenience and realism at very low cost. The alternative to Mininet is hardware test beds which are fast, accurate but very expensive and shared. The other option is to use simulator which is very cheap but sometimes slow and require code modification. Mininet offers ease of use, performance accuracy and scalability.

Indonesian Journal of Electrical Engineering and Computer Science

Software defined wireless network is a networking architecture and an emerging networking principle that is based on software defined network. A software defined network is a fundamental networking concept which separates the networking devices used in communication network form the program that runs on the top of these devices. In this paper we will explore the modeling tools used for software defined wireless network in our literature survey and based on the survey we have used mininet-Wi-Fi for modeling software defined wireless network, which is the best and most widely used emulation tool for software defined wireless network. Lastly, we have evaluated the performance of TCP traffic bandwidth for different number of emulated end stations and access points.

International Journal of Computer and Communication Engineering, 2016

Software-defined Networks (SDN) is an innovative idea proposed by an academic institute to reach certain goal of Next Generation Networks (NGN). SDN decouples control plane and data plane from the network core devices for operating purpose. The control plane is the centrally control unit called SDN controller acting as Network Operating Systems (NOS). The data plane resides inside the network core devices and is only responsible for forwarding data packets controlled by central controller. OpenFlow technology is one of the most successful implementation of SDN, and it is a first standard of SDN defined by Open Networking Foundation (ONF). In this paper, an OpenFlow-based network architecture is discussed by comparing with traditional network. Further, a design and performance analysis of OpenFlow-based various network topologies are done. The performance analysis is done by comparing all network topologies on basis of bandwidth utilization, packet transmission rate, round-trip propagation delay between end nodes and maximum obtained throughput. The design of all the OpenFlow-enabled topologies are done using prototype network emulator called Mininet.

International Journal of Computer Science and Information Technology, 2018

With the emergence of recent technologies in the field of computer network, traditional infrastructure in the field of networks have become obsolete and incompatible with respect to the new architectures of open networks that emerge with force. This is how software-defined networks emerge by enabling cloud computing ecosystem, enterprise data centers, and telecommunications service providers. The major contribution of this paper is the simulation of an ecosystem based on a software defined network by making use of certain types of networks topologies and using the virtualization of the open network operating system (ONOS) and Mininet as a network emulator.