def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
# h1, h2, r1, r2, r3, r4 = net.get('host1', 'host2', 'router1', 'router2', 'router3', 'router4')
#h1intf = h1.defaultIntf()
#h1intf.setIP('192.168.1.1/24')
#h2intf = h2.defaultIntf()
#h2intf.setIP('192.168.2.1/24')
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Dumping host processes\n')
for host in net.hosts:
host.cmdPrint("ps aux")
info('** Running CLI\n')
CLI(net)
def bbnet():
"Create network and run Buffer Bloat experiment"
print "starting mininet ...."
# Seconds to run iperf; keep this very high
seconds = 3600
start = time()
# Reset to known state
topo = StarTopo(n=args.n, bw_host=args.bw_host,
delay='%sms' % args.delay,
bw_net=args.bw_net, maxq=args.maxq, diff=args.diff)
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink,
autoPinCpus=True, controller=OVSController)
net.start()
dumpNodeConnections(net.hosts)
net.pingAll()
print args.diff
if args.diff:
print "Differentiate Traffic Between iperf and wget"
os.system("bash tc_cmd_diff.sh")
else:
print "exec tc_cmd.sh"
os.system("bash tc_cmd.sh %s" % args.maxq)
sleep(2)
ping_latency(net)
print "Initially, the delay between two hosts is around %dms" % (int(args.delay)*2)
h2 = net.getNodeByName('h2')
h1 = net.getNodeByName('h1')
h1.cmd('cd ./http/; nohup python2.7 ./webserver.py &')
h1.cmd('cd ../')
h2.cmd('iperf -s -w 16m -p 5001 -i 1 > iperf-recv.txt &')
CLI( net )
h1.cmd("sudo pkill -9 -f webserver.py")
h2.cmd("rm -f index.html*")
Popen("killall -9 cat", shell=True).wait()
def simpleTest():
"Create and test a simple network"
net = Mininet()
#c0 = net.addController('c0',POXBridge)
c0 = net.addController('c0',RemoteController)
s1 = net.addSwitch('s1')
s2 = net.addSwitch('s2',dpid='0000000000000012')
s3 = net.addSwitch('s3')
s4 = net.addSwitch('s4')
h1 = net.addHost('h1')
h2 = net.addHost('h2')
h3 =net.addHost('h3')
h4 = net.addHost('h4')
l11= net.addLink(h1,s1)
l22= net.addLink(h2,s2)
l33= net.addLink(h3,s3)
l44= net.addLink(h4,s4)
l12= net.addLink(s1,s2)
l23= net.addLink(s2,s3)
l2f= net.addLink(s2,s4)
net.start()
h1.intfList()[0].setIP('10.43.21.1/24')
h2.intfList()[0].setIP('10.43.21.2/24')
h3.intfList()[0].setIP('10.43.21.3/24')
h4.intfList()[0].setIP('10.43.21.4/24')
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
CLI(net)
net.stop()
def setupITG( network ):
for host in network.hosts:
host.cmd( '/usr/sbin/sshd -D &')
host.cmd( 'ITGRecv < /dev/null &' )
# DEBUGGING INFO
print
print "Dumping host connections"
dumpNodeConnections(network.hosts)
print
print "*** Hosts addresses:"
print
for host in network.hosts:
print host.name, host.IP()
print
print "*** Type 'exit' or control-D to shut down network"
print
print "*** For testing network connectivity among the hosts, wait a bit for the controller to create all the routes, then do 'pingall' on the mininet console."
print
CLI( network )
print "Killing ITGRecv(s)..."
for host in network.hosts:
host.cmd('kill %' + '/usr/sbin/sshd')
host.cmd( 'pkill -15 ITGRecv')
print "Stopping the network..."
network.stop()
def main():
start = time()
try:
topo = NetworkTopo(switch_bw=args.bw_net, host_bw=args.bw_host, switch_delay='%sms' %(args.delay, ), queue_size=23593)
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)
net.start()
dumpNodeConnections(net.hosts)
net.pingAll()
if args.http:
test_http(net)
else:
run_tcp_first(net, args.tcp_n)
except:
print "-"*80
print "Caught exception. Cleaning up..."
print "-"*80
import traceback
traceback.print_exc()
raise
finally:
stop_all_iperf()
net.stop()
Popen("killall -9 top bwm-ng tcpdump cat mnexec; mn -c", shell=True, stderr=PIPE)
Popen("pgrep -f webserver.py | xargs kill -9", shell=True).wait()
stop_tcpprobe()
end = time()
cprint("Experiment took %s seconds\n" % (end - start), "yellow")
def perTest():
"Specify performance parameters for the links"
# Between core and aggregation switches
linkopts1 = dict(bw=10, delay='5ms', loss=1, max_queue_size=1000, use_htb=True)
# Between aggregation and edge switches
linkopts2 = dict(bw=10, delay='5ms', loss=1, max_queue_size=1000, use_htb=True)
# Between edge switches and hosts
linkopts3 = dict(bw=10, delay='5ms', loss=1, max_queue_size=1000, use_htb=True)
"Create and test a simple network"
topo = CustomTopo(linkopts1=linkopts1, linkopts2=linkopts2, linkopts3=linkopts3, fanout=2)
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
print "Testing bandwidth between h1 with h2, h3 and h5"
h1, h2 = net.get('h1', 'h2')
net.iperf( ( h1, h2 ) )
h1, h3 = net.get('h1', 'h3')
net.iperf( ( h1, h3 ) )
h1, h5 = net.get('h1', 'h5')
net.iperf( ( h1, h5 ) )
h1, h7 = net.get('h1', 'h7')
net.iperf( ( h1, h7 ) )
net.stop()
def main():
parser = ArgumentParser()
parser.add_argument('--verbose', '-v', action='store_true')
args = parser.parse_args()
topo = BftTopo()
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)
net.start()
create_etc_hosts(net)
# This dumps the topology and how nodes are interconnected through
# links.
dumpNodeConnections(net.hosts)
start_app(net)
start_nodes(net, args.verbose)
start_client(net)
#CLI(net)
sleep(5)
start_user(net)
CLI(net)
endTime = time() + RUN_DURATION
for p in popens.values():
os.killpg(p.pid, signal.SIGTERM)
net.stop()
def sshd( network, cmd='/usr/sbin/sshd', opts='-D' ):
"Start a network, connect it to root ns, and run sshd on all hosts."
switch = network.switches[ 0 ] # switch to use
ip = '10.123.123.1' # our IP address on host network
routes = [ '10.0.0.0/8' ] # host networks to route to
connectToRootNS( network, switch, ip, 8, routes )
for host in network.hosts:
host.cmd( cmd + ' ' + opts + '&' )
host.cmd( 'ITGRecv -l /tmp/ITGRecv-Logs/ITGRecv-' + host.IP() + '.log > /dev/null &' )
# DEBUGGING INFO
print
print "Dumping host connections"
dumpNodeConnections(network.hosts)
print
print "*** Hosts are running sshd at the following addresses:"
print
for host in network.hosts:
print host.name, host.IP()
print
print "*** Type 'exit' or control-D to shut down network"
print
print "*** For testing network connectivity among the hosts, wait a bit for the controller to create all the routes, then do 'pingall' on the mininet console."
print
CLI( network )
for host in network.hosts:
host.cmd( 'kill %' + cmd )
network.stop()
def testIt():
topo = SingleSwitch()
net = Mininet(topo)
net.start()
dumpNodeConnections(net.hosts)
net.pingAll()
net.stop()
def createTopo():
logging.debug("Create FatTopo")
global topo
topo = FatTopo()
topo.createTopo()
topo.createLink()
logging.debug("Start Mininet")
CONTROLLER_IP = "127.0.0.1"
CONTROLLER_PORT = 6633
global net
net = Mininet(topo=topo, link=TCLink, controller=None)
net.addController('controller', controller=RemoteController, ip=CONTROLLER_IP, port=CONTROLLER_PORT)
net.start()
logger.debug("dumpNode")
# enableSTP()
dumpNodeConnections(net.hosts)
# pingTest(net)
# iperfTest(net, topo)
root = net.get(topo.HostList[0])
makeTerm(root)
# root.cmd('java -jar ../ncintents-bridge.jar 9000 &')
run(host='172.20.4.112', port=8090)
CLI(net)
net.stop()
def myTopo():
net = Mininet(switch=OVSKernelSwitch)
net.addController('controller01',controller=RemoteController,ip=ofc_ip, port=ofc_port)
spine1 = net.addSwitch(spine1_name, dpid=spine1_dpid)
leaf1 = net.addSwitch(leaf1_name, dpid=leaf1_dpid)
leaf2 = net.addSwitch(leaf2_name, dpid=leaf2_dpid)
host1 = net.addHost(host1_name, ip=host1_ip)
host2 = net.addHost(host2_name, ip=host2_ip)
host3 = net.addHost(host3_name, ip=host3_ip)
host4 = net.addHost(host4_name, ip=host4_ip)
net.addLink(spine1, leaf1)
net.addLink(spine1, leaf2)
net.addLink(leaf1, host1)
net.addLink(leaf1, host2)
net.addLink(leaf2, host3)
net.addLink(leaf2, host4)
net.start()
print "Dumping node connections"
dumpNodeConnections(net.switches)
dumpNodeConnections(net.hosts)
ofp_version(spine1, ['OpenFlow13'])
ofp_version(leaf1, ['OpenFlow13'])
ofp_version(leaf2, ['OpenFlow13'])
CLI(net)
net.stop()
def RunTest():
"""TOPO"""
topo = FatTreeTopo()
topo.topoCreate(4,4,2,2,2)
CONTROLLER_NAME = topo.crtlname
CONTROLLER_IP = topo.crtlip
CONTROLLER_PORT = topo.crtlport
net = Mininet(topo=topo,build= False,link=TCLink, controller=None)
time.sleep(1)
net.addController( CONTROLLER_NAME,controller=RemoteController,
ip=CONTROLLER_IP,
port=CONTROLLER_PORT)
net.start()
dumpNodeConnections(net.hosts)
net.pingAll()
h1 = net.get('h000')
h16 = net.get('h311')
h2 = net.get('h001')
h1.popen('iperf -s -u -i 1')
h16.popen('iperf -s -u -i 1')
h2.cmdPrint('iperf -c '+ h1.IP() + ' -u -t 10 -i 1 -b 100m')
h2.cmdPrint('iperf -c '+ h16.IP() + ' -u -t 10 -i 1 -b 100m')
CLI(net)
net.stop()
def do_net( self, _line ):
"List network connections."
nl=self.nodelist
simhost=self.mn.nameToNode['simhost']
x=nl.index(simhost)
nl.remove(nl[x])
dumpNodeConnections( nl )
def createTopo():
logging.debug("LV1 Create HugeTopo")
topo = HugeTopo()
topo.createTopo()
topo.createLink()
# TODO add multiple controller here
logging.debug("LV1 Start Mininet")
CONTROLLER_IP = "127.0.0.1"
CONTROLLER_PORT = 6633
c0 = Controller('c0', port=6633)
c1 = Controller('c1', port=6634)
c2 = Controller('c2', port=6635)
c3 = Controller('c3', port=6636)
c5 = RemoteController('c2', ip='127.0.0.1')
net = Mininet(topo=topo, link=TCLink, controller=POX)
for c in [c0, c1, c2, c3 ]:
net.addController(c)
net.start()
logger.debug("LV1 dumpNode")
enableSTP()
dumpNodeConnections(net.hosts)
#pingTest(net)
#iperfTest(net, topo)
CLI(net)
p = pexpect.spawn( 'controller test' )
# but first a simple ping test
p.sendline( 'xterm c0' )
net.stop()
def perfTest(): "Create network and run simple performance test" topo =LinearTopo(k=Y) net =Mininet(topo=topo, host=CPULimitedHost, link=TCLink,controller=OVSController) count=1 for i in range(1,X+1,2): stri="h" stri2="127.0.0." stri2=stri2+str(count) count=count+1 stri=stri+str(i) hi=net.get(stri) hi.setIP(stri2,24) count=1 for i in range(2,X+1,2): stri="h" stri2="192.168.0." stri=stri+str(i) stri2=stri2+str(count) count=count+1 hi=net.get(stri) hi.setIP(stri2,29) net.start() print "Dumping host connections" dumpNodeConnections(net.hosts) print "Testing network connectivity" net.pingAll() net.stop()
def __init__( self, loss):
"Create custom topo."
# Initialize topology
Topo.__init__( self )
self.loss = loss
# Add hosts and switches
leftHost = self.addHost( 'h1' )
leftHost2 = self.addHost( 'h2' )
rightHost = self.addHost( 'h3' )
leftSwitch = self.addSwitch( 's4' )
leftSwitch2 = self.addSwitch( 's5' )
middleSwitch = self.addSwitch( 's6' )
rightSwitch = self.addSwitch( 's7' )
# Add links
self.addLink( leftHost, leftSwitch , loss=self.loss ) #(h1,s4)
self.addLink( leftHost2, leftSwitch2 , loss=self.loss ) #(h2,s5)
self.addLink( leftSwitch, middleSwitch , loss=self.loss ) #(s4,s6)
self.addLink( leftSwitch2, middleSwitch , loss=self.loss ) #(s5,s6)
self.addLink( middleSwitch, rightSwitch , loss=self.loss ) #(s6,s7)
self.addLink( rightSwitch, rightHost , loss=self.loss ) #(s7,h3)
# preconfigure the ARP table
arpNodes = [rightHost,rightSwitch]
net = Mininet(self)
print "\n dumping node connection info"
dumpNodeConnections(net.hosts)
print "\n"
def perfTest():
"Create network and run simple performance test"
prm = myParam(n=200, data_size=200)
print prm.n, prm.m, prm.data_size, prm.pipes
topo = myTopo(prm.n, prm.m)
net = Mininet(topo=topo, link=TCLink)
net.start()
print "Dumping host connections"
dumpNodeConnections( net.hosts )
print "Dumping switch connections"
dumpNodeConnections( net.switches )
#print "Testing network connectivity"
#net.pingAll()
print "Testing bandwidth under s1"
h1, h2 = net.get('h1', 'h2')
net.iperf((h1, h2))
print "Testing bandwidth across tree"
h1, h2 = net.get('h1', 'h%d'%(prm.n+1))
net.iperf((h1, h2))
for p in (1, 2, 5, 10, 20):
prm.pipes = p
simTrans(net.hosts, prm)
#CLI( net )
net.stop()
def startNetwork():
"instantiates a topo, then starts the network and prints debug information"
info('** Creating Quagga network topology\n')
topo = QuaggaTopo()
info('** Starting the network\n')
global net
net = MiniNExT(topo, controller=OVSController)
net.start()
info('** Dumping host connections\n')
dumpNodeConnections(net.hosts)
info('** Dumping host processes\n')
# for host in net.hosts:
# host.cmdPrint("ps aux")
# for host in net.hosts:
# host.cmdPrint('ifconfig')
# Enabling IP forwarding
net.get("R1").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R2").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R3").cmd("sysctl -w net.ipv4.ip_forward=1")
net.get("R4").cmd("sysctl -w net.ipv4.ip_forward=1")
# Setting Interface IPs
net.get("R1").cmd("ifconfig R1-eth1 172.0.2.1/24")
net.get("R1").cmd("ifconfig R1-eth2 172.0.6.2/24")
net.get("R2").cmd("ifconfig R2-eth1 172.0.3.1/24")
net.get("R4").cmd("ifconfig R4-eth1 172.0.3.2/24")
net.get("R4").cmd("ifconfig R4-eth2 172.0.5.1/24")
net.get("R3").cmd("ifconfig R3-eth1 172.0.5.2/24")
# Static Routes from R1 to R2
net.get("H1").cmd("route add default gw 172.0.1.2")
net.get("R1").cmd("ip route add 172.0.3.0/24 via 172.0.2.2 dev R1-eth1")
net.get("R1").cmd("ip route add 172.0.4.0/24 via 172.0.2.2 dev R1-eth1")
net.get("R2").cmd("ip route add 172.0.4.0/24 via 172.0.3.2 dev R2-eth1")
# Allowing Nating ar each router in the path from H1 to H2
net.get("R1").cmd("iptables -t nat -A POSTROUTING -o R1-eth1 -j MASQUERADE")
net.get("R1").cmd("iptables -A FORWARD -i R1-eth1 -o R1-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R1").cmd("iptables -A FORWARD -i R1-eth0 -o R1-eth1 -j ACCEPT")
net.get("R2").cmd("iptables -t nat -A POSTROUTING -o R2-eth1 -j MASQUERADE")
net.get("R2").cmd("iptables -A FORWARD -i R2-eth1 -o R2-eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R2").cmd("iptables -A FORWARD -i R2-eth0 -o R2-eth1 -j ACCEPT")
net.get("R4").cmd("iptables -t nat -A POSTROUTING -o R4-eth0 -j MASQUERADE")
net.get("R4").cmd("iptables -A FORWARD -i R4-eth0 -o R4-eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT")
net.get("R4").cmd("iptables -A FORWARD -i R4-eth1 -o R4-eth0 -j ACCEPT")
info('** Testing network connectivity\n')
net.ping(net.hosts)
info('** Running CLI\n')
CLI(net)
def rosTest():
"Create network and run simple performance test"
topo = SingleSwitchTopo(n=3)
net = Mininet(topo=topo,
link=TCLink)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
h1, h2, h3 = net.get('h1', 'h2', 'h3')
print "Starting roscore"
output = h3.cmd('source /opt/ros/indigo/setup.bash && '
'export ROS_IP='+h3.IP()+
' && export ROS_MASTER_URI=http://'+h3.IP()+
':11311 && roscore &')
print output
print "Starting receiver"
output = h2.cmd('export LD_LIBRARY_PATH=/home/jeb/:$LD_LIBRARY_PATH && export ROS_IP='+h2.IP()+
' && export ROS_MASTER_URI=http://'+h3.IP()+
':11311 && /home/jeb/node_main -config /home/jeb/receiver.xml --tg_time 50 &')
print output
print "Starting sender"
output = h1.cmd('export LD_LIBRARY_PATH=/home/jeb/:$LD_LIBRARY_PATH && export ROS_IP='+h1.IP()+
' && export ROS_MASTER_URI=http://'+h3.IP()+
':11311 && /home/jeb/node_main -config /home/jeb/sender.xml --tg_time 50 --max_data_length_bits 6000 &')
print output
sleep(70)
net.stop()
def multiSwitchTest():
topo = MultiSwitchTopo(depth=2, fanout=4)
#net = Mininet(topo, controller=OVSController)
net = Mininet(topo, controller=lambda name: RemoteController(name, ip='192.168.56.1'))
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
receivers = ["00:11:22:33:44:00",
"00:11:22:33:44:04",
"00:11:22:33:44:08",
"00:11:22:33:44:0c"]
for host in net.hosts:
if host.defaultIntf().MAC() in receivers:
startLogReceiver(host)
else:
startLogSender(host)
for host in net.hosts:
if not (host.defaultIntf().MAC() in receivers):
runGenerator(host)
for host in net.hosts:
if host.defaultIntf().MAC() in receivers:
stopLogReceiver(host)
else:
stopLogSender(host)
net.stop()
def required(x,y):
topo = MyTopo(x, y)
net = Mininet(topo,host=CPULimitedHost, link=TCLink)
net.start()
for i in xrange(y):
for j in xrange(y):
if (i+1)%2==0 and (j+1)%2==1:
net.nameToNode["h"+str(i+1)].cmd("iptables -A OUTPUT -o h"+str(i+1)+"-eth0 -d 10.0.0."+ str(j+1)+" -j DROP")
net.nameToNode["h"+str(j+1)].cmd("iptables -A OUTPUT -o h"+str(j+1)+"-eth0 -d 10.0.0."+ str(i+1)+" -j DROP")
elif (i+1)%2==1 and (j+1)%2==0:
net.nameToNode["h"+str(i+1)].cmd("iptables -A OUTPUT -o h"+str(i+1)+"-eth0 -d 10.0.0."+ str(j+1)+" -j DROP")
net.nameToNode["h"+str(j+1)].cmd("iptables -A OUTPUT -o h"+str(j+1)+"-eth0 -d 10.0.0."+ str(i+1)+" -j DROP")
net.pingAll()
try:
print "Testing bandwidth between h1 and h3"
h1, h3 = net.get('h1', 'h3')
net.iperf((h1, h3))
except:
c=1
try:
print "Testing bandwidth between h1 and h3"
h4, h2 = net.get('h2', 'h4')
net.iperf((h2, h4))
except:
c=1
dumpNodeConnections(net.switches)
CLI(net)
net.stop()
def main(argv):
global _remControl
global _controllers
remote_ip = '127.0.0.1'
lan = 2
try:
opts, args = getopt(argv[1:], 'r:l:', ['remote-ip=','lan='])
except GetoptError as err:
print err.msg, err.opt
exit(1);
print opts
print args
for opt, arg in opts:
if opt in ('-r', '--remote-ip'):
remote_ip = arg
if opt in ('-l', '--lan'):
lan = int(arg)
_remControl = RemoteController('Remote Controller', ip=remote_ip)
_controllers['remote'] = _remControl
topo = HomeTopo(ethHosts=lan)
net = Mininet(topo=topo, switch=MultiController, host=CPULimitedHost,
link=TCLink, autoPinCpus=True, build=False)
net.addController(_controller)
net.build()
topo.routerSetup(net)
net.start()
dumpNodeConnections(net.hosts)
CLI( net )
net.stop()
def run_quic_topology():
# remove old files
os.system( "rm /tmp/client-*")
os.system( "rm /tmp/server-*")
# kill old processes
os.system( "killall -q controller" )
os.system( "killall -q quic_client" )
os.system( "killall -q quic_server" )
topo = QuicTester()
net = Mininet(topo=topo, host=Host, link=Link)
net.start()
client = net.getNodeByName('client')
server = net.getNodeByName('server')
set_all_IP(net, client, server)
#Dump connections
dumpNodeConnections(net.hosts)
display_routes(net, client, server)
run_quic(client, server)
CLI(net)
net.stop()
def main():
"""@todo: Docstring for main.
:returns: @todo
"""
linkopts1 = dict(bw=1000, delay='1ms')
linkopts2 = dict(bw=100, delay='5ms')
linkopts3 = dict(bw=10, delay='50ms')
fanout = 4
topo = CustomTopo(linkopts1, linkopts2, linkopts3, fanout)
net = Mininet(topo = topo, link=TCLink)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
h1 = net.get('h1')
h27 = net.get('h27')
print "Starting Test: ping h1 to h27"
# Start pings
outputString = h1.cmd('ping', '-c6', h27.IP())
print outputString
print
# print "Starting Test2: pingAll"
# net.pingAll()
net.stop()
def setup_fattree_topo(kval):
# setup fat-tree topology
print("**** Setting up fat-tree topology ****\n")
topo = fat_tree_topo()
topo.setup_topo(kval)
print("**** Setting up all the network links ****\n")
topo.link_setup(kval)
# instantiate mininet network
print("**** Instantiating netwrok ****")
net = Mininet(topo=topo, link=TCLink, controller=None)
net.addController('floodlight', controller=RemoteController, ip="127.0.0.1", port=6653)
print("**** Setting up IP and MAC addresses ****")
ip_mac_setup(net, kval)
# start the netwrok
net.start()
# start sshd on each host
enable_ssh(net)
# enable STP
enable_stp(kval)
dumpNodeConnections(net.hosts)
#net.pingAll()
# grab mininet CLI
CLI(net)
disable_ssh(net)
net.stop()
def setUp(self):
super(FaucetTaggedTest, self).setUp()
self.topo = FaucetSwitchTopo(n_tagged=4)
self.net = Mininet(self.topo, controller=FAUCET)
self.net.start()
dumpNodeConnections(self.net.hosts)
self.net.waitConnected()
def perfTest():
topo = MyTopo()
net = Mininet(topo=topo)
dumpNodeConnections(net.hosts)
h1, h2 = net.getNodeByName('h1', 'h2')
@route('/cmd/<node>/<cmd>')
def cmd( node='h1', cmd='hostname' ):
out, err, code = net.get( node ).pexec( cmd )
return out + err
@route('/stop')
def stop():
net.stop()
@route('/run_http_client')
def function():
result = h2.cmd('curl -o /dev/null -s -S -w data=%{url_effective},%{time_total},%{time_starttransfer},%{size_download},%{speed_download}\\n http://h1/getsize.py?length=6856')
print result
return
@route('/goto_cli')
def function():
CLI(net)
print "stopping"
net.stop()
return 0
net.start()
run(host='localhost', port=8080 )
def bufferbloat(**kwargs):
# Linux uses CUBIC-TCP by default that doesn't have the usual sawtooth
# behaviour. For those who are curious, replace reno with cubic
# see what happens...
# sysctl -a | grep cong should list some interesting parameters.
os.system("sysctl -w net.ipv4.tcp_congestion_control=reno")
# create the topology and network
topo = BBTopo(int(kwargs['queue_size']), int(kwargs['ping_RTT']))
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink, controller= OVSController)
net.start()
# This dumps the topology and how nodes are interconnected through
# links.
dumpNodeConnections(net.hosts)
# This performs a basic all pairs ping test.
net.pingAll()
# Start all the monitoring processes
start_tcpprobe("cwnd.txt")
# TODO: Start monitoring the queue sizes. Since the switch I
# created is "s0", I monitor one of the interfaces. Which
# interface? The interface numbering starts with 1 and increases.
# Depending on the order you add links to your network, this
# number may be 1 or 2. Ensure you use the correct number.
# qmon = start_qmon(...)
qmon = start_qmon(iface='s0-eth2', outfile='%s/q.txt' % ".")
# TODO: Start iperf, pings, and the webserver.
# start_iperf(net), ...
start_iperf(net, kwargs['congestion_window'])
start_webserver(net)
start_ping(net)
# TODO: measure the time it takes to complete webpage transfer
# from h1 to h2 (say) 4-5 times. Hint: check what the following
# command does: curl -o /dev/null -s -w %{time_total} google.com
# Now use the curl command to fetch webpage from the webserver you
# spawned on host h1 (not from google!)
print "starting timing tester"
timing_results = timing_tester(net)
# TODO: compute average (and standard deviation) of the fetch
# times. You don't need to plot them. Just print them
# here and explain your observations in the Questions part
# in Part 2, where you analyze your measurements.
print timing_results[0]
print "Ave fetching time: %.4f" % numpy.average(numpy.array(timing_results).astype(numpy.float))
print "std dev. of fetching times: %.4f" % numpy.std(numpy.array(timing_results).astype(numpy.float))
# Stop probing
stop_tcpprobe()
qmon.terminate()
net.stop()
# Ensure that all processes you create within Mininet are killed.
# Sometimes they require manual killing.
Popen("pgrep -f webserver.py | xargs kill -9", shell=True).wait()
def startup(): topo=Network1() net=Mininet(topo,link=TCLink) net.start() dumpNodeConnections(net.hosts) CLI(net) net.stop()
def create_mininet(self, topo=None, tunnels=[], switch=UserSwitch, controller=None):
"Create a Mininet and test it with pingall"
self.setLogLevel('debug')
self.logger.info("Creating mininet instance")
if not topo:
topo=SingleSwitchTopo(k=2)
if controller:
self.net = Mininet(topo=topo, intf=TCIntf, link=TCLink, switch=switch, controller=controller)
else:
self.net = Mininet(topo=topo, intf=TCIntf, link=TCLink, switch=switch)
self.logger.info("Adding tunnels to mininet instance")
for tunnel in tunnels:
port=None
cls=None
if "port" in tunnel[2].keys():
port = tunnel[2]["port"]
del tunnel[2]["port"]
if "cls" in tunnel[2].keys():
cls = tunnel[2]["cls"]
del tunnel[2]["cls"]
self.addTunnel(tunnel[0], tunnel[1], port, cls, **tunnel[2])
self.logger.info("Starting Mininet...")
self.net.start()
#print "Dumping host connections"
dumpNodeConnections(self.net.hosts)
self.logger.info("Startup complete.")
def perfTest():
"Create network and run simple performance test"
topo = SingleSwitchTopo(n=4)
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
print "Testing bandwidth between h1 and h4"
h1, h4 = net.get('h1', 'h4')
net.iperf((h1, h4), seconds=40)
net.stop()
def start_net(net, ping_all=False, cli=False):
"""
Starts the network that is passed to it.
:param net: the network to be started
:param ping_all: after start pingAll()
:param cli: Drop the user in to a CLI so user can run commands.
"""
net.start()
dumpNodeConnections(net.hosts)
if ping_all:
net.pingAll()
if cli:
CLI(net)
def Test():
"Create network and run simple performance test"
topo = SingleSwitchTopo()
net = Mininet( topo=topo,
host=CPULimitedHost, link=TCLink,
autoStaticArp=False )
net.start()
info( "Dumping host connections\n" )
dumpNodeConnections(net.hosts)
tracker,h1,h2,h3,h4,h5,h6 = net.getNodeByName('tracker','h1','h2','h3','h4','h5','h6')
CLI(net,script = "script")
CLI(net)
net.stop()
def perfTest():
"Create network and run simple performance test"
topo = KalmanSwitchTopo()
net = Mininet(topo=topo)
net.start()
# print "Dumping host connections"
dumpNodeConnections(net.hosts)
#print "Testing network connectivity"
# net.pingAll()
print "Testing bandwidth between h1 and h2"
h1, h2 = net.get('h1', 'h2')
net.iperf((h1, h2), seconds=5)
net.stop()
def perfTest( lossy=True ):
"Create network and run simple performance test"
topo = SingleSwitchTopo( n=4, lossy=lossy )
net = Mininet( topo=topo,
host=CPULimitedHost, link=TCLink,
autoStaticArp=True )
net.start()
print( "Dumping host connections" )
dumpNodeConnections(net.hosts)
print( "Testing bandwidth between h1 and h4" )
h1, h4 = net.getNodeByName('h1', 'h4')
net.iperf( ( h1, h4 ), l4Type='UDP' )
net.stop()
def perfTest():
"Create and test a simple network"
topo = MyTopo(switch_num=SWITCH_NUM, host_num=HOST_NUM, conn_map=CONN_MAP)
net = Mininet(topo)
net.start()
print("Dumping host connections")
dumpNodeConnections(net.hosts)
dumpNodeConnections(net.switches)
input("Are you ready To ping? (Press Any Key to Continue)")
net.pingAll()
net.stop()
def simpleTest():
"Create and test a simple network"
# p=int(input())
topo = SingleSwitchTopo(n=5)
net = Mininet(topo)
s23 = net.addSwitch('s23')
print s23.cmd("echo 'Hello'")
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
net.stop()
def perfTest():
"Create network and run simple performance test"
topo = ParkingLotTopo(n=3)
net = Mininet(topo=topo,
host=CPULimitedHost,
link=TCLink,
controller=OVSController)
net.start()
print("Dumping host connections")
dumpNodeConnections(net.hosts)
print("Testing network connectivity")
net.pingAll()
# CLI( net )
TCP_TYPE_first = 'bbr' # bbr or cubic
TCP_TYPE_second = 'bbr' # bbr or cubic
run_time_tot = 100 # total iperf3 runtime, in seconds. I recommend more than 300 sec.
h1, h2, h3, h4, h5, h6, h7, h8 = net.get('h1', 'h2', 'h3', 'h4', 'h5',
'h6', 'h7', 'h8')
# ### To indirectly measure RTT delay
# print("--- ping h6 to h2 ---") # to measure the bottleneck level at link S1-S2 and S2-S3
# h5.cmd('ping 10.0.0.8 -i 1 -c %d > h5_ping_result_%s &' % (run_time_tot, TCP_TYPE_first))
# print("--- ping h7 to h5 ---") # to measure the bottleneck level at link S2-S3
# h2.cmd('ping 10.0.0.8 -i 1 -c %d > h2_ping_result_%s &' % (run_time_tot, TCP_TYPE_second))
# Receiver of flow 1 = h1
h1.cmd('iperf3 -s -i 1 > h1_server_%s &' % (TCP_TYPE_first))
# Receiver of flow 2 = h4
h4.cmd('iperf3 -s -i 1 > h4_server_%s &' % (TCP_TYPE_second))
# First, start to send the flow 1 : h8 --> h1
print("--- h8 sends to h1 with 1 TCP (%s) flow during %d sec ---" %
(TCP_TYPE_first, run_time_tot))
h8.cmd('iperf3 -c 10.0.0.1 -t %d -C %s > flow1_tcp%s &' %
(run_time_tot, TCP_TYPE_first, TCP_TYPE_first))
# wait 10 seconds
time.sleep(10)
# Secondly, start to send the flow 2 : h8 --> h4
print("--- h8 sends to h4 with 1 TCP (%s) flow during %d sec ---" %
(TCP_TYPE_second, run_time_tot - 10))
h8.cmd('iperf3 -c 10.0.0.4 -t %d -C %s > flow2_tcp%s &' %
(run_time_tot - 10, TCP_TYPE_second, TCP_TYPE_second))
# wait enough until all processes are done.
time.sleep((run_time_tot - 10) + 3)
# CLI(net)
net.stop() # exit mininet
def Test():
"Create network and run simple performance test"
topo = SimpleTopo(k=2)
net = Mininet(topo=topo, host=CPULimitedHost,
link=TCLink) #, controller=RemoteController)
s1 = net.getNodeByName('s1')
s2 = net.getNodeByName('s2')
if args.intf1 is not None:
addRealIntf(net, args.intf1, s1)
if args.intf2 is not None:
addRealIntf(net, args.intf2, s2)
# net.start()
opts = '-D -o UseDNS=no -u0'
#' '.join( sys.argv[ 1: ] ) if len( sys.argv ) > 1 else (
rootnode = sshd(net, opts=opts)
# print "Dumping host connections"
dumpNodeConnections(net.hosts)
# net.pingAll()
h2 = net.getNodeByName('h2')
# dhcp = net.getNodeByName('dhcp')
# out = dhcp.cmd('sudo dhcpd')
# print "DHCPD = "+ out
#h1.cmd("bash tc_cmd_diff.sh h1-eth0")
#h1.cmd("tc -s show dev h1-eth0")
h2.cmd('iperf -s -p 5001 -i 1 > iperf-recv_TCP.txt &')
h2.cmd('iperf -s -p 5003 -u -i 1 > iperf-recv_UDP.txt &')
#h2.cmd('iperf -s -p %s -i 1 > iperf_server_TCP.txt &' % 5001)
# (CUSTOM_IPERF_PATH, 5001, args.dir))
#monitoring the network
#monitor = Process(target=monitor_qlen,
#args=("%s"%args.iface,float(args.sampleR),int(args.nQ), "%s_%s"% (args.exp,args.out)))
for host in net.hosts:
#host.cmd('tc qdisc del dev %s-eth0 root'%host)
#host.cmd('tc qdisc add dev %s-eth0 root tbf rate 10Mbit latency 2s burst 15k mtu 1512'%host)
host.cmd('ethtool -K %s-eth0 gso off tso off ufo off' % host)
#start mininet CLI
CLI(net)
#terminate
for host in net.hosts:
host.cmd('kill %' + '/usr/sbin/sshd')
os.system('killall -9 iperf')
net.hosts[0].cmd('killall -9 dhcpd')
stopNAT(rootnode)
net.stop()
Popen("killall -9 cat", shell=True).wait()
def buildlineTopo():
'''
h1---s1---s2---s3---h2
'''
pofNet = Mininet(switch=POFSwitch, controller=RemoteController)
# build switches
n = 5
switchList = [
pofNet.addSwitch('s%d' % i, listenPort=6633 + i)
for i in range(1, n + 1)
]
pofNet.addController('c0',
controller=RemoteController,
ip=IPAddr,
port=6666)
host = pofNet.addHost('h1', mac="00:00:00:00:00:01")
pofNet.addLink(host, switchList[0])
lastSwitch = None
for switch in switchList:
if lastSwitch:
pofNet.addLink(lastSwitch, switch)
lastSwitch = switch
# build hosts
# hostlist = [pofNet.addHost('h%d'%i, mac="00:00:00:00:00:0%d"%i)for i in range(2,6)]
# for host in hostlist:
# pofNet.addLink(host, switchList[4])
s6 = pofNet.addSwitch('s6', listenPort=6639)
s7 = pofNet.addSwitch('s7', listenPort=6640)
pofNet.addLink(switchList[2], s6)
pofNet.addLink(switchList[3], s7)
pofNet.addLink(s6, s7)
# host = pofNet.addHost('h9', mac="00:00:00:00:00:09")
# pofNet.addLink(host, s7)
host = pofNet.addHost('h2', mac="00:00:00:00:00:02")
pofNet.addLink(host, switchList[4])
# host = pofNet.addHost('h11', mac="00:00:00:00:00:0B")
# pofNet.addLink(host,s7)
# hostlist = [pofNet.addHost('h%d' % i, mac="00:00:00:00:00:0%d" % i) for i in range(6, 9)]
# for host in hostlist:
# pofNet.addLink(host, switchList[3])
# pofNet.delLinkBetween(switchList[1],switchList[2])
# start the network
pofNet.start()
dumpNodeConnections(pofNet.switches)
CLI(pofNet)
pofNet.stop()
def perfTest():
"Create network and run simple performance test"
topo = ParkingLotTopo(n=3)
net = Mininet(topo=topo,
host=CPULimitedHost,
link=TCLink,
controller=OVSController)
net.start()
print("Dumping host connections")
dumpNodeConnections(net.hosts)
print("Testing network connectivity")
net.pingAll()
CLI(net) # start mininet interface
net.stop() # exit mininet
def simpleTest():
"Create and test a simple network"
topo = SingleSwitchTopo(n=4)
net = Mininet(topo)
net.addController('c0',
controller=RemoteController,
ip='127.0.0.1',
port=6633)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
net.stop()
def jellyfish():
topo = JFTopo(nServers=args.nServers,
nSwitches=args.nSwitches,
nPorts=args.nPorts)
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)
net.start()
dumpNodeConnections(net.hosts)
net.pingAll()
net.stop()
# Ensure that all processes you create within Mininet are killed.
# Sometimes they require manual killing.
Popen("pgrep -f webserver.py | xargs kill -9", shell=True).wait()
def loopyTest():
topo = LoopyTopo()
net = Mininet(topo=topo,
host=CPULimitedHost, link=TCLink, controller=RemoteController, autoSetMacs=True)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
# print "Testing network connectivity"
# net.pingAll()
# print "Testing bandwidth between h1 and h4"
# h1, h4 = net.get('h1', 'h4')
# net.iperf((h1, h4))
CLI(net)
net.stop()
def IotTest():
controllerInstance = RemoteController('Iot-Controller',
ip='10.108.100.254',
port=6633)
#controllerInstance = RemoteController('Iot-Controller',ip='127.0.0.1',port=6633)
topo = MyTopo()
net = Mininet(topo, build=False, ipBase='192.168.3.0/24')
net.addController(controllerInstance)
net.build()
net.start()
CLI(net)
dumpNodeConnections(net.hosts)
#net.ping(net.hosts)
net.stop()
def Test():
"Create network and run simple performance test"
topo = SingleSwitchTopo()
net = Mininet( topo=topo,
host=CPULimitedHost, link=TCLink,
autoStaticArp=False )
net.start()
info( "Dumping host connections\n" )
dumpNodeConnections(net.hosts)
info( "Testing bandwidth between h1 and h4\n" )
h1, h2, h3 = net.getNodeByName('h1', 'h2', 'h3')
#s1, s2 = net.getNodeByName('s1', 's2')
CLI(net)
net.stop()
def perfTest(banwid=10, tdelay='50ms', tloss=0):
"Create network and run simple performance test"
topo = SingleSwitchTopo(n=2, ibw=banwid, idelay=tdelay, iloss=tloss)
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)
net.start()
dumpNodeConnections(net.hosts)
# print "Pre-Starting test..."
# net.pingAll()
h1, h2 = net.get('h1', 'h2')
# net.iperf( (h1, h2) )
print h1.cmd('sudo mosquitto &')
print "Starting test..."
tvalues = []
for num in range(5):
start_time = time.clock()
h2.cmd("""
mqttc = mqtt.Client()
mqttc.loop_start()
print "000"
mqttc.on_message = on_message
mqttc.on_connect = on_connect
mqttc.on_publish = on_publish
mqttc.on_subscribe = on_subscribe
print "A"
mqttc.connect(broker_add, 1883, keepalive=60)
print "B"
mqttc.subscribe(sensor_name, 0)
print "C"
new_s_value = random.randint(1, 1000)
print "D"
new_sensor_t = {'value': str(new_s_value)}
print "E"
the_msg_str = json.dumps(new_sensor_t)
print "F"
mqttc.publish(sensor_name,the_msg_str)
print "G"
""")
elapsed = time.clock() - start_time
tvalues.append(elapsed)
print elapsed * 1000, "msec"
print "Average elapsed time = ", numpy.mean(tvalues) * 1000, " msec"
net.stop()
def test():
"Create network and run simple performance test"
topo = SingleSwitchTopo()
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)
info('Starting network\n')
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
info('Running CLI\n')
CLI(net)
info('Stoping network\n')
net.stop()
def simpleTest():
"Create and test the network"
topo = NewTopo(n=4)
net = Mininet(topo=topo, link=TCLink, host=CPULimitedHost)
print "Starting the network"
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
hosts = net.hosts
h1, h2, h3, h4, h5, h6, h7, h8 = net.get('h1', 'h2', 'h3', 'h4', 'h5',
'h6', 'h7', 'h8')
ping10(net, (h1, h2, h3, h4, h5, h6, h7, h8))
net.stop()
def simpleTest():
"Create and test a simple network"
topo = SingleSwitchTopo(n=5)
net = Mininet(topo, controller=None)
" Remote Ryu Controller"
c = RemoteController('c', '0.0.0.0', 6633)
net.addController(c)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
CLI(net)
#print "Testing network connectivity"
#net.pingAll()
net.stop()
def test_MininetLinearTopo():
net = Mininet(topo=LinearTopo(n=5), link=TCLink)
net.start()
print "Dumpingg host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
# CLI(net)
net.stop()
def main():
"Create and run the Wordcount mapreduce program in Mininet topology"
# parse the command line
parsed_args = parseCmdLineArgs()
# instantiate our topology
print "Instantiate topology"
topo = MR_Topo(Racks=parsed_args.racks,
M=parsed_args.map,
R=parsed_args.reduce)
# create the network
print "Instantiate network"
# net = Mininet (topo)
net = Mininet(topo=topo, controller=OVSController)
# activate the network
print "Activate network"
net.start()
# debugging purposes
print "Dumping host connections"
dumpNodeConnections(net.hosts)
# debugging purposes
print "Testing network connectivity"
net.pingAll()
# print "Running wordcount apparatus"
# Unfortunately, I cannot get this to work :-(
# runMapReduceWordCount (net.hosts, parsed_args)
print "Generating commands file to be sourced"
genCommandsFile(net.hosts, parsed_args)
# run the cli
CLI(net)
# @NOTE@
# You should run the generated commands by going to the
# Mininet prompt on the CLI and typing:
# source commands.txt
# Then, keep checking if all python jobs (except one) are completed
# You can look at the *.out files which have all the debugging data
# If there are errors in running the python code, these will also
# show up in the *.out files.
# cleanup
net.stop()
def perfTest():
"Create network and run simple performance test"
topo = SingleSwitchTopo(n=4)
net = Mininet(topo=topo,
autoSetMacs=True,
host=CPULimitedHost,
link=TCLink,
autoStaticArp=False,
controller=RemoteController)
print "Dumping host connections"
net.start()
dumpNodeConnections(net.hosts)
CLI(net)
net.stop()
def create_new_net(self):
net_config = self.new_net_configuration()
topo = SingleSwitchTopoWithLinkConfig(4, net_config)
net = Mininet(topo=topo)
#, host=CPULimitedHost, link=TCLink )
self.net = net
net.start()
print("Dumping host connections")
dumpNodeConnections(net.hosts)
print("Testing network connectivity")
net.pingAll()
print("Testing bandwidth between h1 and h4")
h1, h4 = net.get('h1', 'h4')
net.iperf((h1, h4))
def main():
setLogLevel('info')
tp = MyTopo()
net = Mininet(tp,
controller=RemoteController(ip='127.0.0.1',
name='RyuController'),
autoStaticArp=True)
net.addNAT().configDefault()
net.start()
dumpNodeConnections(net.hosts)
net.staticArp() # Not needed if autoStaticArp=True
CLI(net)
net.stop()
def main():
topo = CustomTopology()
net = Mininet(topo=topo,
link=TCLink,
controller=RemoteController,
switch=OVSSwitch,
autoSetMacs=True)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.switches)
dumpNodeConnections(net.hosts)
net.pingAll()
CLI(net)
net.stop()
def perfTest():
# "Create network and run simple performance test"
topo = SingleSwitchTopo(n=4)
net = Mininet(topo=topo, host=CPULimitedHost, link=TCLink)
net.start()
print("Dumping host connections")
dumpNodeConnections(net.hosts)
print("Testing network connectivity")
net.pingAll()
print('*** Running CLI\n')
CLI(net)
print('*** Stopping network')
net.stop()
def start_cli():
topo = create_topo()
net = Mininet(topo=topo)
net.start()
dumpNodeConnections(net.hosts)
s1, s2, h1, h2 = net.get('s1', 's2', 'h1', 'h2')
net.pingAll()
h1.cmd('ethtool --offload h1-eth0 rx off tx off')
h2.cmd('ethtool --offload h2-eth0 rx off tx off')
h2.cmd('python3 modbus_server.py &')
h1.cmd('tcpdump -i h1-eth0 -w h1_without_snort.pcap &')
h2.cmd('tcpdump -i h2-eth0 -w h2_without_snort.pcap &')
CLI(net)
net.stop()
def perfTest():
"Create network and run simple perf test"
topo = DualSwitchTopo()
net = Mininet(topo=topo, link=TCLink)
net.start()
print "Dumping host connections"
dumpNodeConnections(net.hosts)
print "Testing network connectivity"
net.pingAll()
c0, h1, h2, h3, h4, h5, h6 = net.get('c0', 'h1', 'h2', 'h3', 'h4', 'h5',
'h6')
print "IP address of h6 is ", h6.IP()
CLI(net)
net.stop()
def perfTest():
"Create network and run simple performance test"
IP = sys.argv[1]
print "Ip of the controller is: " + IP
topo = CreateTopo( n=4 )
net = Mininet( topo=topo, controller=lambda name: RemoteController('c1', ip=IP, port=6633), switch=OVSKernelSwitch)
# ~ c1 = net.addController('c1', controller=RemoteController, ip=IP, port=6653)
c1 = net.controllers[0]
c1.start()
net.start()
print "Dumping host connections"
dumpNodeConnections( net.hosts )
print "Testing network connectivity"
net.pingAll()