Assignment 2

Completed the A, B, C questions, using mininet script generating a fat tree topology.

pre requirement of environment:

Ubuntu 14.04 with mininet and ryu controller.

		$ git clone https://github.com/pandadao/ECMP-mininet.git
		$ cd ECMP-mininet 
		$ ryu-manager --observe-link ryu.app.simple_switch_13

After you open the ryu controller, you can see the following information like the picture:

Open a newterminal and type the following instruction:

		$ sudo python my-fattree.py

And you will see the mininet create fat tree with k=4 topology information like the pictures: