Before editing assignment 4
Renamed Assignment 3
Created learning_switch_topo.py for Assignment 4.
First pass of learning_switch.py
Assignment 4 final check-in.
Update topology.sh

Removed --rx from the arguments of plot_rate and changed -i argument from 's.*-eth2' to 's.*-eth1' to get the correct rate graph
Merge pull request #1 from nitesh-sinha/patch-1

Updated topology.sh to obtain correct rate plot