asd.qwe

from mininet.topo import Topo
from mininet.net import Mininet
from mininet.log import setLogLevel
from mininet.node import RemoteController
from mininet.cli import CLI
from mininet.link import TCLink
from time import sleep


class Simple_Topology(Topo):
    def __init__(self):
        Topo.__init__(self)

        h1 = self.addHost('h1', ip='10.0.0.1/24', mac='00:00:00:00:00:01')
        h2 = self.addHost('h2', ip='10.0.0.2/24', mac='00:00:00:00:00:02')
        s1 = self.addSwitch('s1')
        s2 = self.addSwitch('s2')

        # TODO Decide link parameters
        # Use htb?
        # internet = dict(bw=10, delay='2.5ms', loss=2, max_queue_size=100)
        internet = dict(bw=100)
        local = dict(bw=1000)
        # local = dict(bw=100, delay='0.1ms', loss=1, max_queue_size=1000)

        # Links
        self.addLink(h1, s1, **internet)
        self.addLink(s1, s2, **local)
        self.addLink(s2, h2, **internet)


def main():
    topo = Simple_Topology()
    mn = Mininet(topo=topo, controller=None, link=TCLink)
    mn.addController(
        'c0', controller=RemoteController, ip='127.0.0.1', port=6633)
    h1, h2, c0, s1 = mn.get('h1', 'h2', 'c0', 's1')

    for h in mn.hosts:
        # disable ipv6
        h.cmd("sysctl -w net.ipv6.conf.all.disable_ipv6=1")
        h.cmd("sysctl -w net.ipv6.conf.default.disable_ipv6=1")
        h.cmd("sysctl -w net.ipv6.conf.lo.disable_ipv6=1")

    for sw in mn.switches:
        # disable ipv6
        sw.cmd("sysctl -w net.ipv6.conf.all.disable_ipv6=1")
        sw.cmd("sysctl -w net.ipv6.conf.default.disable_ipv6=1")
        sw.cmd("sysctl -w net.ipv6.conf.lo.disable_ipv6=1")

    # c0.cmd('tcpdump -i lo -w logs/openflow.pcap port 6633 &')
    mn.start()
    h2.cmd('ping -c 1 10.0.0.1')
    CLI(mn)
    # sleep(2)
    mn.stop()


topos = {'simple_topo': (lambda: Simple_Topology())}

if __name__ == '__main__':
    # setLogLevel('debug')
    setLogLevel('info')
    main()