olt-topo.py

#!/usr/bin/python

from mininet.topo import Topo
from mininet.node import RemoteController
from mininet.net import Mininet
from mininet.util import irange
from mininet.cli import CLI
from mininet.log import setLogLevel

class OltTopo( Topo ):
    "Single switch with OLT port 129 and configurable number of ONU ports"

    def build( self, k=1, **_opts ):
        "k: number of onu"
        self.k = k
        switch = self.addSwitch( 's1' )
        for h in irange( 1, k ):
            host = self.addHost( 'h%s' % h, inNamespace=False )
            self.addLink( host, switch )

        olt_port = self.addHost( 'h129', inNamespace=False )
        self.addLink( olt_port, switch, port2=129 )

if __name__ == '__main__':
    setLogLevel('debug')
    topo = OltTopo()

    net = Mininet( topo=topo, controller=RemoteController )

    net.start()

    CLI( net )

    net.stop()