Mininet script for multiple controllers

Controller 1 is running on 192.168.200.22
Controller 2 is running on the same machine that mininet is running

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#!/usr/bin/python

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

def emptyNet():

    net = Mininet(controller=RemoteController, switch=OVSKernelSwitch)

    c1 = net.addController('c1', controller=RemoteController, ip="192.168.200.22", port=6633)
    c2 = net.addController('c2', controller=RemoteController, ip="127.0.0.1", port=6633)

    h1 = net.addHost( 'h1', ip='10.0.0.1' )
    h2 = net.addHost( 'h2', ip='10.0.0.2' )
    h3 = net.addHost( 'h3', ip='10.0.0.3' )
    h4 = net.addHost( 'h4', ip='10.0.0.4' )

    s1 = net.addSwitch( 's1' )
    s2 = net.addSwitch( 's2' )

    s1.linkTo( h1 )
    s1.linkTo( h2 )
    s1.linkTo( s2 )
    s2.linkTo( h3 )
    s2.linkTo( h4 )

    net.build()
    c1.start()
    c2.start()
    s1.start([c1,c2])
    s2.start([c1,c2])

    net.start()
    net.staticArp()
    CLI( net )
    net.stop()

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