#!/usr/bin/python

import functools

from mininet.node import RemoteController, OVSSwitch
from mininet.topo import Topo
from mininet.net import Mininet
from mininet.util import dumpNodeConnections
from mininet.log import setLogLevel

class DiamondTopo( Topo ):
    def build( self ):
        s1 = self.addSwitch( 's1', mac='00:00:00:00:00:01' )
        s2 = self.addSwitch( 's2', mac='00:00:00:00:00:02' )
        s3 = self.addSwitch( 's3', mac='00:00:00:00:00:03' )

        h1 = self.addHost( 'h1', mac='00:00:00:00:ff:01' )
        h2 = self.addHost( 'h2', mac='00:00:00:00:ff:02' )
        h3 = self.addHost( 'h3', mac='00:00:00:00:ff:03' )

        self.addLink( s1, s2 )
        self.addLink( s2, s3 )
        self.addLink( s3, s1 )

        self.addLink( h1, s1 )
        self.addLink( h2, s2 )
        self.addLink( h3, s3 )

def simpleTest():
    topo = DiamondTopo()

    testController = RemoteController( 'OpenDaylight', '192.168.150.131' )

    OVSSwitchOF13 = functools.partial( OVSSwitch, protocols='OpenFlow13' )
    net = Mininet( topo, switch=OVSSwitchOF13, controller=testController )
    net.start()

    print "Dumping host connections"
    dumpNodeConnections( net.hosts )
    print "Dumping switch connections"
    dumpNodeConnections( net.switches )

    net.interact()

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