• Description:
  Mininet is an emulator of a network used to visualize the switches and application of Software-Defined Networks (SDN) in virtualized circumstances. Mininet hosts run on standard Linux network software, and its switches support OpenFlow for highly and tremendously flexible custom routing.
  To install Mininet on a PC, the user can follow this manual, which provides instructions for installing Mininet using Linux distributions.
• Install Ubuntu Server on a VM.
• Update the Ubuntu Server on VM.
• Install the required software.
• Install the Mininet from the given source code.

• Don’t install mininet on your host PC. Install in a very virtual machine.

• Open a New Terminal
• $ sudo apt-get update
• $ sudo apt-get upgrade
• $ sudo apt-get dist-upgrade

• Install git. Git is the computer code version system employed by the mininet project.
• $ sudo apt-get install git

• Use git to download the mininet source code.
• $ git clone https://github.com/mininet/mininet
• It creates a folder within the home directory named mininet that contains the project file structure.
• To find the newest beta version of mininet, list all labeled releases within the mininet project.
• 
  Above, we tend to see the most recently offered beta unharness is a pair of 2.3.1b1. So we tend to switch to its branch on our virtual machine.
• $ git checkout -b 2.3.1b1
• Switched to a new branch ‘2.3.1b1’.
• The mininet project provides an install script. Run the script.
• This may install mininet 2.3.1b1 because the script victimizes the files within the mininet 2.3.1b1 branch.
• $ ~/mininet/util/install.sh -a
• After the script stops running, check that the installation is productive. Execute the subsequent command to check the installation. It ought to run a brief mininet state of affairs with success.
  
• $ sudo mn --test pingall
• After productive installation, check the configuration of the controller, switches, and hosts with the default examples within the mininet package.