Testing first practice examples
Switches 0, 1 , 2 added
Optimizing
added for loops for hosts and switches.
printing i and j for hosts and switches
Added loops with switches and hosts
checking status across branches
create more layers, skeleton
switches connection in same loop
First Draft
added submit.py
added submit.py
Merge branch 'master' of github.com:salmanjavaid/SDN into Assignment2_4

These two versions were developed independently to simulate a Data center architecture for SDN.
Now these two will be merged into a single one.
minor changes
Merge branch 'Assignment2_4'