def simpleTest():
"Create and test a simple network"
# p=int(input())
net = Mininet()
s1 = net.addSwitch('s1')
s2 = net.addSwitch('s2')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
h3 = net.addHost('h3')
h4 = net.addHost('h4')
net.addLink(h1, s1)
net.addLink(h2, s1)
net.addLink(h3, s2)
net.addLink(h4, s2)
net.addLink(s1, s2)
net.Controller()
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
net.stop()
