python - Mininet-wifi custom topology -

at first want wanted create complex topology (more switches connected each other) simple 1 not working. not able working connection eg. 'h1 ping h2'

here topology:

he script should create equivalent topology:

!/usr/bin/python  """ setting position of nodes (only stations , access points) , providing mobility.  """  mininet.net import mininet mininet.node import controller, remotecontroller, ovskernelap mininet.link import tclink mininet.cli import cli mininet.log import setloglevel  def topology():      "create network."     net = mininet( controller=controller, link=tclink, accesspoint=ovskernelap )      print "*** creating nodes"     h1 = net.addhost( 'h1', mac='00:00:00:00:00:01', ip='10.0.0.1/8' )     h2 = net.addhost( 'h2', mac='00:00:00:00:00:11', ip='10.0.1.1/8' )      sta1 = net.addstation( 'sta1', mac='00:00:00:00:00:02', ip='10.0.0.2/8', position='50,50,0' )     sta2 = net.addstation( 'sta2', mac='00:00:00:00:00:03', ip='10.0.0.3/8', position='40,50,0')     sta3 = net.addstation( 'sta3', mac='00:00:00:00:00:04', ip='10.0.0.4/8', position='20,50,0' )      ap1 = net.addaccesspoint( 'ap1', ssid= 'new-ssid', mode= 'g', channel= '5', position='25,50,0', range='35' )     ap2 = net.addaccesspoint( 'ap2', ssid= 'new-ssid', mode= 'g', channel= '5', position='75,50,0', range='35' )      c1 = net.addcontroller( 'c1' )      s1 = net.addswitch('s1')      #net.runalternativemodule('../module/mac80211_hwsim.ko')      print "*** configuring wifi nodes"     net.configurewifinodes()      print "*** associating , creating links"      net.addlink(ap1, s1)     net.addlink(ap2, s1)     net.addlink(s1, c1)     #net.addlink(ap1, ap2)      net.addlink(s1, h1)     net.addlink(s1, h2)      net.addlink(ap1, sta1)     net.addlink(ap1, sta2)     net.addlink(ap1, sta3)      print "*** starting network"     net.build()     c1.start()     ap1.start( [c1] )     ap2.start( [c1] )      """uncomment plot graph"""     net.plotgraph(max_x=100, max_y=100)      net.startmobility(starttime=0)     net.mobility(sta1, 'start', time=1, position='0.0,50.0,0.0')     net.mobility(sta1, 'stop', time=30, position='100.0,50.0,0.0')     net.stopmobility(stoptime=31)      print "*** running cli"     cli( net )      print "*** stopping network"     net.stop()  if __name__ == '__main__':     setloglevel( 'info' )     topology() 

as said, not able ping h1 , h2 :( tried use remotecontroller got same result. idea might wrong?

please consider changes below:

from mininet.node import controller, remotecontroller, ovskernelap, ovsswitch net = mininet( controller=controller, link=tclink, accesspoint=ovskernelap, switch=ovsswitch ) c1 = net.addcontroller( 'c1', controller=controller ) s3 = net.addswitch('s3') 

remove:
net.addlink(s1, c1)

add:
s3.start( [c1] )

please note if set both ap , switch same id (e.g. s1, ap1), have same dpid default. so, had rename s1 s3. on other hand may define dpid parameter when add node whether want.