Python Mininet.buildFromTopo方法代码示例

# 需要导入模块: from mininet.net import Mininet [as 别名]
# 或者: from mininet.net.Mininet import buildFromTopo [as 别名]
def pingall_test(folder, exe, topo=SingleSwitchTopo(4), custom_topo=None, custom_test=None, expect_pct=0):

  ip="127.0.0.1"
  port=6633

  if not VERBOSE:
    lg.setLogLevel('critical')

  ctrlr = lambda n: RemoteController(n, ip=ip, port=port, inNamespace=False)
  net = Mininet(switch=OVSSwitch, controller=ctrlr, autoStaticArp=False,cleanup=True)
  c1 = net.addController('c1')

  if custom_topo:
    custom_topo.build(net)
  else:
    net.buildFromTopo(topo)

  # Start the network
  net.start()

  # Fork off Frenetic process
  devnull = None if VERBOSE else open(os.devnull, 'w')
  frenetic_proc = Popen(
    ['/home/vagrant/src/frenetic/frenetic.native', 'http-controller','--verbosity','debug'],
    stdout=devnull, stderr=devnull
  )

  # Wait a few seconds for frenetic to initialize, otherwise 
  time.sleep(5)

  # And fork off application
  app_proc = Popen(
    ['/usr/bin/python2.7',exe],
    stdout=devnull, stderr=devnull, cwd=CODE_ROOT+folder
  )

  if custom_test:
    got_pct = int(custom_test(net))
  else:
    got_pct = int(net.pingAll())

  expected_msg = " expected "+str(expect_pct)+"% dropped got "+str(got_pct)+"% dropped" 
  print exe + ("...ok" if expect_pct==got_pct else expected_msg)

  frenetic_proc.kill()
  app_proc.kill()

  # Ocassionally shutting down the network throws an error, which is superfluous because
  # the net is already shut down.  So ignore.  
  try:
    net.stop()
  except OSError:
    pass

# 需要导入模块: from mininet.net import Mininet [as 别名]
# 或者: from mininet.net.Mininet import buildFromTopo [as 别名]
def mnScript():
    "Creating a Mininet net"

    net = Mininet( controller=RemoteController, switch=OVSKernelSwitch, autoSetMacs=True, listenPort=7001 )

    topo = MyTopo()
    
    #Build and Start
    net.buildFromTopo( topo )
    net.start()


    print "*** Starting Group ***"
    print "*** Socket"
    s = initsocket()
    
    request = Request()
    request.id = 1
    request.action = request.ACTION.GET_GROUP
    #request.action = request.ACTION.GET_COMPLETE_GROUP

    s.send (request.toJson() )
    jsonStr = s.recv()

    print "*** Group"
    group = GroupFactory().decodeJson(jsonStr)
    
    src = net.nameToNode[ "h" + str(group.source) ]
    print "*** Setup CA:FE ARP in source:", src.name
    src.cmd("arp -s 10.0.2.254 ca:fe:ca:fe:ca:fe")
    print "*** Start udpapp in source( " + src.name + " ) manually ;)"
    #src.cmd("udpapp -m &")
    
    for host in group.hosts:
        if host.id != group.source:
            h = net.nameToNode[ "h" + str(host.id) ]
            print "*** Setup CA:FE ARP in " + h.name
            h.cmd("arp -s 10.0.2.254 ca:fe:ca:fe:ca:fe")
            print "*** Starting udpapp in " + h.name
            #h.cmd("udpapp -c " + h.name  + " &")
            #sleep( 1 )

    print "*** Starting CLI ***"
    CLI( net )

    print "*** Stopping net ***"
    net.stop()

# 需要导入模块: from mininet.net import Mininet [as 别名]
# 或者: from mininet.net.Mininet import buildFromTopo [as 别名]
def mnScript():
    "Creating a Mininet net"

    net = Mininet( controller=RemoteController, switch=OVSKernelSwitch, autoSetMacs=True, listenPort=6634 )

    print "*** Creating Remote Controller"
    c0 = net.addController( 'c0' )

    topo = MyTopo()
    
    #Build and Start
    net.buildFromTopo( topo )
    net.start()


    print "*** Starting Group ***"
    print "*** Socket"
    s = initsocket()
    
    request = Request()
    request.id = 1
    request.action = request.ACTION.GET_GROUP

    s.send (request.toJson() )
    jsonStr = s.recv()

    print "*** Group"
    group = GroupFactory().decodeJson(jsonStr)
    
    src = net.nameToNode[ "h" + str(group.source) ]
    print "*** Setup CA:FE ARP in source"
    src.cmd("arp -s 10.0.2.254 ca:fe:ca:fe:ca:fe")
    print "*** Starting udpapp in source"
    cmdThread( src, "echo blah > /home/openflow/htest" ) #"udpapp -m > " + src.name + ".log" )

    for host in group.hosts:
        h = net.nameToNode[ "h" + str(host.id) ]
        print "*** Setup CA:FE ARP in " + h.name
        h.cmd("arp -s 10.0.2.254 ca:fe:ca:fe:ca:fe")
        print "*** Starting udpapp in " + h.name
        cmdThread( h, "ping 10.0.0.1 > " + h.name + ".log") #"udpapp -c > " + h.name + ".log" )

    print "*** Starting CLI ***"
    CLI( net )

    print "*** Stopping net ***"
    net.stop()

# 需要导入模块: from mininet.net import Mininet [as 别名]
# 或者: from mininet.net.Mininet import buildFromTopo [as 别名]
                self.addLink(node, child)
        else:
            node = self.addHost("h%s" % self.hostNum)
            self.hostNum += 1
        return node


if __name__ == "__main__":
    setLogLevel("info")

    topo = TreeTopo(depth=3, fanout=2)

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

    c0 = network.addController("c0", controller=RemoteController, ip="192.168.56.101", port=6633)

    network.buildFromTopo(topo)
    h1, h2, h3, h4, h5, h6, h7, h8 = network.getNodeByName("h1", "h2", "h3", "h4", "h5", "h6", "h7", "h8")
    network.start()
    h1.cmd("iperf -s -u &")
    h8.cmd("iperf -c 10.0.0.1 -u -t 100 -b 10M &")
    h2.cmd("iperf -s -u &")
    h7.cmd("iperf -u -c 10.0.0.2 -t 100 -b 10M &")
    h3.cmd("iperf -s -u &")
    h6.cmd("iperf -u -c 10.0.0.3 -t 100 -b 10M &")
    h4.cmd("iperf -s -u &")
    h5.cmd("iperf -u -c 10.0.0.4 -t 100 -b 40M &")

    # network.run( CLI, network )
    CLI(network)

# 需要导入模块: from mininet.net import Mininet [as 别名]
# 或者: from mininet.net.Mininet import buildFromTopo [as 别名]
 def buildFromTopo( self, *args, **kwargs ):
     "Start network"
     info( '*** Placing nodes\n' )
     self.placeNodes()
     info( '\n' )
     Mininet.buildFromTopo( self, *args, **kwargs )