mininet

from mininet.topo import Topo

class MyTopo( Topo ):
    def build( self ):
        # Add hosts
        hosth1 = self.addHost( 'h1' )
        hosth2 = self.addHost( 'h2' )
        hosth3 = self.addHost( 'h3' )
        hosth4 = self.addHost( 'h4' )
        hosth5 = self.addHost( 'h5' )
        hosth6 = self.addHost( 'h6' )

	# Add switches
        switchs1 = self.addSwitch( 's1', listenPort=6634 )
        switchs2 = self.addSwitch( 's2', listenPort=6634 )
        switchs3 = self.addSwitch( 's3', listenPort=6634 )
        switchs4 = self.addSwitch( 's4', listenPort=6634 )
        switchs5 = self.addSwitch( 's5', listenPort=6634 )

        # Add links
        self.addLink( hosth1, switchs3 )
        self.addLink( hosth2, switchs3 )
        self.addLink( hosth2, switchs4 )
        self.addLink( hosth3, switchs4 )
        self.addLink( hosth4, switchs4 )
        self.addLink( hosth5, switchs4 )
        self.addLink( hosth5, switchs5 )
        self.addLink( hosth6, switchs5 )
        self.addLink( switchs3, switchs1 )
        self.addLink( switchs4, switchs1 )
        self.addLink( switchs4, switchs2 )
        self.addLink( switchs5, switchs2 )


topos = { 'mytopo': ( lambda: MyTopo() ) }