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mult_topo.py
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mult_topo.py
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#!/usr/bin/python
from mininet.net import Mininet, MininetWithControlNet
from mininet.node import Controller, OVSKernelSwitch, RemoteController, OVSSwitch
from mininet.cli import CLI
from mininet.log import setLogLevel, info
from random import randint
import time
#net = Mininet(switch=OVSSwitch)
def emptyNet():
net = Mininet(controller=RemoteController, switch=OVSKernelSwitch)
h1 = net.addHost( 'h1', ip='10.0.0.1' )
h2 = net.addHost( 'h2', ip='10.0.0.2' )
h3 = net.addHost( 'h3', ip='10.0.0.3' )
h4 = net.addHost( 'h4', ip='10.0.0.4' )
h5 = net.addHost( 'h5', ip='10.0.0.5' )
s1 = net.addSwitch( 's1')
s2 = net.addSwitch( 's2')
s3 = net.addSwitch( 's3')
s4 = net.addSwitch( 's4')
s1.linkTo( h1 )
s1.linkTo( h2 )
s1.linkTo( s2 )
s2.linkTo( h3 )
s2.linkTo( h4 )
s2.linkTo( s3 )
s3.linkTo( h5 )
s4.linkTo( s1 )
net.build()
net.start()
c1 = net.addController('c1', controller=RemoteController, ip="127.0.0.1", port=6653)
c2 = net.addController('c2', controller=RemoteController, ip="127.0.0.1", port=6657)
c3 = net.addController('c3', controller=RemoteController, ip="127.0.0.1", port=6658)
s1.start([c1])
s2.start([c2])
s3.start([c2])
s4.start([c3])
for i in range(1,500):
time.sleep(randint(3000, 6000)/1000)
args = "s2 s3 up".split()
net.configLinkStatus( *args )
time.sleep(randint(3000, 6000)/1000)
args = "s2 s3 down".split()
net.configLinkStatus( *args )
CLI( net )
net.stop()
if __name__ == '__main__':
setLogLevel( 'info' )
emptyNet()