def clusterSanity():
"Sanity check for cluster mode"
topo = SingleSwitchTopo()
net = MininetCluster( topo=topo )
net.start()
CLI( net )
net.stop()
def run(args):
run_id = mk_run_id(args)
sock = setupControlerCommandChannel(args.ctrl_cmd_local_port)
ctrlPrepare(sock, run_id, args.ctrl_ip, args.ctrl_cmd_port)
# k switches n hosts
topo = LinearTopo(k=args.switches,
n=args.hosts,
sopts={'protocols': 'OpenFlow13'})
controller = RemoteController('c0',
ip=args.ctrl_ip,
port=args.ctrl_of_port)
net = MininetCluster(topo=topo,
servers=args.mn_hosts,
controller=controller)
net.start()
createDirs(run_id, net, args.mn_hosts)
try:
pairs = designatePairs(net.hosts)
setUpHostsFiles(run_id, pairs)
info("**** CURRENT RUN ID: %s\n" % run_id)
[generatePairSysConfigs(p, args.iterations) for p in pairs]
[runPassiveHosts(p) for p in pairs]
[ensurePassiveStarted(p, args.sleep_time) for p in pairs]
[runActiveHosts(p) for p in pairs]
waitForFinish(pairs, args.sleep_time)
except Exception, arg:
error("ERROR: %s \n" % arg)
def demo():
"Simple Demo of Cluster Mode"
servers = [ 'localhost', 'ubuntu2', 'ubuntu3' ]
topo = TreeTopo( depth=3, fanout=3 )
net = MininetCluster( topo=topo, servers=servers,
placement=SwitchBinPlacer )
net.start()
CLI( net )
net.stop()
def __init__(self, topo, port=6653, controller_port=6653, servers=None):
self.clear()
self.controller = Controller(controller_port)
if not servers:
self.network = Mininet(topo=topo,
controller=RemoteController(
self.controller.name, port=port))
else:
self.network = MininetCluster(topo=topo,
servers=servers,
placement=SwitchBinPlacer,
controller=RemoteController(
self.controller.name, port=port))
self.dpctl = DPCTL(self.network.switches)
self.traffic_manager = TrafficManager(self.network)
def clusterSanity():
"Sanity check for cluster mode"
topo = SingleSwitchTopo()
net = MininetCluster( topo=topo )
net.start()
CLI( net )
net.stop()
def demo():
"Simple Demo of Cluster Mode"
servers = ['localhost', 'ubuntu2', 'ubuntu3']
topo = TreeTopo(depth=3, fanout=3)
net = MininetCluster(topo=topo, servers=servers, placement=SwitchBinPlacer)
net.start()
CLI(net)
net.stop()
def run():
servers = ['localhost', 'mn2']
topo = LinearTopo(k=2, n=2, sopts={'protocols': 'OpenFlow13'})
controller = RemoteController('c0', ip='192.168.56.1', port=6653)
net = MininetCluster(topo=topo, servers=servers, controller=controller)
net.start()
h1 = net.hosts[0]
h2 = net.hosts[1]
setupIperfPair(h1, h2)
# CLI (net)
net.stop()
class OpenFlowTestbed:
def __init__(self, topo, port=6653, controller_port=6653, servers=None):
self.clear()
self.controller = Controller(controller_port)
if not servers:
self.network = Mininet(topo=topo,
controller=RemoteController(
self.controller.name, port=port))
else:
self.network = MininetCluster(topo=topo,
servers=servers,
placement=SwitchBinPlacer,
controller=RemoteController(
self.controller.name, port=port))
self.dpctl = DPCTL(self.network.switches)
self.traffic_manager = TrafficManager(self.network)
def __enter__(self):
self._start()
self._configure_network()
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self._stop()
def switches(self):
return [s.dpid for s in self.network.switches]
def switch_num(self):
return len(self.network.switches)
def rules(self):
return self.dpctl.dump_flows()
def rule_num(self):
return self.dpctl.rule_num(count_zero=True)
def hosts(self):
return self.network.hosts
def add_flow(self, bandwidth):
self.traffic_manager.add_random_flow(bandwidth=bandwidth)
def delete_flow(self):
self.traffic_manager.delete_random_flow()
def flow_num(self):
return len(self.traffic_manager.flows)
def network_load(self):
return self.traffic_manager.network_load()
def _start(self):
self.controller.start()
self.network.start()
def _stop(self):
self.controller.stop()
self.network.stop()
def _configure_network(self):
# Disable IPv6
for node in self.network.hosts + self.network.switches:
for intf in ['all', 'default', 'lo']:
node.cmd('sysctl -w net.ipv6.conf.%s.disable_ipv6=1' % intf)
def cli(self):
CLI(self.network)
@staticmethod
def clear():
os.popen('sudo pkill iperf3')
os.popen('sudo mn -c > /dev/null 2>&1')
os.popen('sudo pkill ryu')
