Build a Custom Network with Python

You can literally build a custom internet on your laptop in five minutes. Stop relying on

default settings in Mininet because we are building a custom topology from scratch using

Python. Open up the Nano editor—don't be scared of the terminal—and grab the example

file. We’re going to mod this. The mission is simple: code three switches

and attach two hosts to every single one. You just define the nodes,

add the links, and save the script. Run the pingall command, watch those packets

fly, and you just simulated a complex network without spending a single dollar

on hardware.