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Structuring an SDN-based comparative analysis project is considered as an important and interesting process. By encompassing the fascinating problem statement creation and comparative analysis performance, we offer guidelines on how to structure this kind of project in an efficient way: 

Drafting the Problem Statement

The problem statement must describe the comparison aspects and the reason behind its relevance in an explicit manner for an SDN-based comparative analysis project. In existing mechanisms or expertise, it is important to detect a particular gap that could be fulfilled by your project. For an SDN project, the following is an instance of a problem statement: 

Problem Statement: Several controllers have been created in the fast-emerging context of Software Defined Networking. On the basis of various factors like capabilities, scalability, and performance, every controller has different benefits. But, to decide which controller exhibits the efficient performance among various network arrangements and measures, there is insufficient extensive comparative analysis based on similar constraints. In the process of selecting the highly appropriate controller for particular requirements, this project intends to assist network specialists by addressing this gap through comparing the major SDN controllers in an effective manner.

Choosing the Project Objective

  1. Comparative Analysis of SDN Controllers: Some of the most prominent SDN controllers such as ONOS, Ryu, and OpenDaylight have to be compared. It is important to consider various major factors, including scalability, assistance for latest functionalities, simple incorporation, and performance based on different loads.
  2. SDN Protocols Efficiency: On the basis of credibility, appropriateness to various network devices, and effectiveness, assess diverse SDN protocols like BGP-LS, NetConf, and OpenFlow.
  3. SDN in Different Environments: In different platforms such as IoT environments, industrial networks, and data centers, the accessibility and performance of SDN must be examined.

Methodology for Comparative Analysis

  1. Choosing Assessment Criteria: The metrics or parameters that you plan to utilize for comparing the components must be determined. Credibility, assistance for network principles, safety characteristics, scalability, and performance (such as packet processing time, throughput, and latency) are considered as the general evaluation standards.
  2. Experimental Design: To assess every component in terms of the same constraints, model experiments. For developing controlled platforms, employ actual hardware arrangements or network simulation tools such as Mininet.
  3. Data Gathering: After that, execute the experiments in an appropriate manner. Based on the every determined metrics, gather data. To facilitate statistical analysis, make sure that you collect adequate data.
  4. Data Analysis: Specifically for examining the gathered data, utilize statistical tools. On the basis of your metrics, compare every SDN element’s abilities and performance.
  5. Explanation and Documentation: For particular platforms or standards, which SDN settings or tools function in an efficient manner have to be decided by explaining the outcomes. The methodology, analysis, and conclusions must be reported in an elaborate depiction or documentation.

Anticipated Results

In a comparative analysis SDN project, the anticipated result is an in-depth depiction or documentation that includes various aspects:

  • In accordance with experimental data, it offers explicit suggestions.
  • Every compared component’s shortcoming and advantage are emphasized.
  • For future exploration or enhancement, it recommends possible areas.

How to know which OpenFlow version my mininet supports?

Explicit interpretation is required to decide which OpenFlow version is enabled by your Mininet installation. The Open vSwitch (OVS) is generally examined as the default switch which is utilized in Mininet for managing OpenFlow interactions. So, it is important to interpret the version of OVS that is inherent in Mininet as well as the version of employed Mininet to decide the suitable OpenFlow version. To verify that the OpenFlow versions assisted by your Mininet arrangement, we suggest a clear step-by-step procedure: 

  1. Check Mininet Version

In order to obtain a hint based on the appropriate versions of OpenFlow, you must find the Mininet version that you are currently handling. For verifying the version of your Mininet, open a terminal and print the following command:

mn –version

  1. Check Open vSwitch Version

You can easily decide the suitable versions of OpenFlow by finding the version of Open vSwitch, because the OVS applies the OpenFlow protocol in Mininet. Execute the following command to verify the version of the Open vSwitch:

ovs-vsctl –version

  1. Check Supported OpenFlow Versions

Utilize the below specified command to observe the ideal versions of OpenFlow that are assisted by your Open vSwitch version:

ovs-vsctl get Bridge <bridge-name> protocols

When you are not aware of your bridge name, list out all the bridges using the command:

ovs-vsctl list-br

If you are not setting up any bridge while initiating a network, the default bridge that is employed in Mininet is referred to as ‘br0’ or somewhat same to that. 

  1. Look up Documentation

Elaborate details based on the suitable OpenFlow versions can be offered by the Open vSwitch reports or update notes for your installed version. Information related to protocol assistance is encompassed in Open vSwitch documentation that is typically extensive.  

  1. Assess OpenFlow Versions in Mininet

While initiating a Mininet simulation, you can define the ideal version of OpenFlow in a clear manner. Through appending a parameter to your Mininet initiation command, this process can be carried out efficiently. As an instance: you can utilize the following command to begin Mininet with OpenFlow 1.3:

sudo mn –controller=remote,ip=,port=6633 –switch ovsk,protocols=OpenFlow13

With an exterior controller (that should be functioning at the defined port and IP), this command configures Mininet. To utilize OpenFlow 1.3 version, it arranges the switches.  

  1. Examine Mininet Scripts

When you are initiating Mininet by means of Python, consider your specific scripts or the Mininet Python scripts. In the script indicating the network topology, the version of OpenFlow might be defined at times. 

Thesis Ideas On SDN

Thesis on SDN

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