#!/usr/bin/python

from mininet.net import Mininet
from mininet.node import Controller
from mininet.cli import CLI
from mininet.log import setLogLevel, info

def multiNet():
    	"Create an empty network and add nodes to it."
	net = Mininet( controller=Controller )
	info( '*** Adding controller\n' )
	net.addController( 'c0' )

	info( '*** Adding hosts\n' )
	h1 = net.addHost( 'h1', ip='10.0.0.1' )
	h2 = net.addHost( 'h2', ip='10.0.0.2' )
	info( '*** Adding switch\n' )
	s3 = net.addSwitch( 's3' )
	s4 = net.addSwitch( 's4' )
	s5 = net.addSwitch( 's5' )
	s6 = net.addSwitch( 's6' )
	info( '*** Creating links\n' )
	h1.linkTo( s3 )
	s3.linkTo( s4 )
	s3.linkTo( s5 )
	s4.linkTo( s6 )
	s5.linkTo( s6 )
	h2.linkTo( s6 )
	info( '*** Starting network\n')
	net.start()
	info( '*** Running CLI\n' )
	CLI( net )
	info( '*** Stopping network' )
	net.stop()

if __name__ == '__main__':
    setLogLevel( 'info' )
    multiNet()