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#!/usr/bin/python |
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""" |
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This example creates a single-controller network in a loop topology by |
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using the net.add*() API and manually starting the switches and controllers. |
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""" |
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from mininet.clean import Cleanup |
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from mininet.net import Mininet |
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from mininet.node import RemoteController |
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from mininet.cli import CLI |
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from mininet.log import setLogLevel |
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ip = '192.168.56.1' |
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def int2dpid(dpid): |
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""" |
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:param dpid: |
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:return: |
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""" |
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try: |
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dpid = hex(dpid)[2:] |
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dpid = '0' * (16 - len(dpid)) + dpid |
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return dpid |
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except IndexError: |
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raise Exception('Unable to derive default datapath ID - ' |
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'please either specify a dpid or use a ' |
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'canonical switch name such as s23.') |
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def single_domain(): |
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"""Create a network from semi-scratch with multiple controllers.""" |
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net = Mininet(topo=None, build=False) |
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# Add switches |
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s1 = net.addSwitch('s1', listenPort=6601, dpid=int2dpid(1)) |
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s2 = net.addSwitch('s2', listenPort=6602, dpid=int2dpid(2)) |
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s3 = net.addSwitch('s3', listenPort=6603, dpid=int2dpid(3)) |
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s4 = net.addSwitch('s4', listenPort=6604, dpid=int2dpid(4)) |
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s5 = net.addSwitch('s5', listenPort=6605, dpid=int2dpid(5)) |
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# Add links |
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net.addLink(s1, s2, port1=2, port2=2) |
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net.addLink(s2, s3, port1=3, port2=3) |
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net.addLink(s3, s4, port1=4, port2=4) |
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net.addLink(s4, s5, port1=5, port2=5) |
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net.addLink(s5, s1, port1=6, port2=6) |
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net.addLink(s1, s3, port1=7, port2=7) |
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# Add hosts |
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h1 = net.addHost('h1', mac='dd:00:00:00:00:11') |
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h2 = net.addHost('h2', mac='dd:00:00:00:00:22') |
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h3 = net.addHost('h3', mac='dd:00:00:00:00:33') |
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h4 = net.addHost('h4', mac='dd:00:00:00:00:44') |
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h5 = net.addHost('h5', mac='dd:00:00:00:00:55') |
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# Add links to switches |
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net.addLink(s1, h1, port1=1, port2=1) |
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net.addLink(s2, h2, port1=1, port2=1) |
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net.addLink(s3, h3, port1=1, port2=1) |
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net.addLink(s4, h4, port1=1, port2=1) |
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net.addLink(s5, h5, port1=1, port2=1) |
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net.addController('ctrl', controller=RemoteController, ip=ip, port=6633) |
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net.build() |
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net.start() |
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CLI(net) |
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net.stop() |
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if __name__ == '__main__': |
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setLogLevel('info') # for CLI output |
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Cleanup.cleanup() |
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single_domain() |
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kytos-ng /
sdntrace
