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import unittest
import logging
from mininet.net import Mininet
import mininet.log as log
from mininet.node import OVSController, OVSKernelSwitch
Switch = OVSKernelSwitch
Controller = OVSController
logging.basicConfig(level=logging.DEBUG)
log.setLogLevel('info')
class BasicOpenflowTest(unittest.TestCase):
def addHost(self, N):
logging.debug("Creating host h%s and add to net.", N)
name = 'h%d' % N
ip = '10.0.0.%d' % N
return self.net.addHost(name, ip=ip)
def setUp(self):
self.net = Mininet(controller=Controller, switch=Switch)
logging.info("Creating controllers")
self.net.addController('c1', command='ovs-testcontroller')
logging.info("Creating switches")
s1 = self.net.addSwitch('s1', protocols="OpenFlow10")
s2 = self.net.addSwitch('s2', protocols="OpenFlow10")
logging.info("Creating hosts (7 on each switch)")
hosts1 = [self.addHost(n) for n in (1, 2, 3, 4, 5, 6, 7)]
hosts2 = [self.addHost(n) for n in (8, 9, 10, 11, 12, 13, 14)]
logging.info("Creating links")
for h in hosts1:
self.net.addLink(s1, h)
for h in hosts2:
self.net.addLink(s2, h)
self.net.addLink(s1, s2)
logging.info("Starting network")
self.net.start()
def testPingAll(self):
logging.info("Testing network")
packetLoss = self.net.pingAll()
self.assertTrue(
packetLoss == 0,
"Packet loss during ping test %s" %
packetLoss)
def testIPerfTCP(self):
logging.info("Running TCP performance test")
self.net.iperf()
def testIPerfUDP(self):
logging.info("Running UDP performance test")
self.net.iperf(l4Type='UDP')
def tearDown(self):
logging.info("Stopping network")
self.net.stop()
if __name__ == '__main__':
unittest.main()
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