#!/usr/bin/env python ''' file: custom/optical.py ''' from mininet.topo import Topo from mininet.net import Mininet from mininet.cli import CLI from mininet.log import setLogLevel, info from mininet.link import Intf, Link from mininet.node import RemoteController class NullIntf( Intf ): "A dummy interface with a blank name that doesn't do any configuration" def __init__( self, name, **params ): self.name = '' class NullLink( Link ): "A dummy link that doesn't touch either interface" def makeIntfPair( cls, intf1, intf2, *args, **kwargs ): pass def delete( self ): pass class OpticalTopo(Topo): def addIntf( self, switch, intfName ): "Add intf intfName to switch" self.addLink( switch, switch, cls=NullLink, intfName1=intfName, cls2=NullIntf ) def __init__(self): # Initialize topology Topo.__init__(self) # Add hosts and switches h1 = self.addHost('h1') h2 = self.addHost('h2') h3 = self.addHost('h3') h4 = self.addHost('h4') h5 = self.addHost('h5') h6 = self.addHost('h6') s1 = self.addSwitch('s1', dpid="0000ffffffff0001") s2 = self.addSwitch('s2', dpid="0000ffffffff0002") s3 = self.addSwitch('s3', dpid="0000ffffffff0003") s4 = self.addSwitch('s4', dpid="0000ffffffff0004") s5 = self.addSwitch('s5', dpid="0000ffffffff0005") s6 = self.addSwitch('s6', dpid="0000ffffffff0006") # Add links from hosts to OVS self.addLink(s1, h1) self.addLink(s2, h2) self.addLink(s3, h3) self.addLink(s4, h4) self.addLink(s5, h5) self.addLink(s6, h6) # add links from ovs to linc-oe # sorry about the syntax :( self.addIntf(s1,'tap29') self.addIntf(s2,'tap30') self.addIntf(s3,'tap31') self.addIntf(s4,'tap32') self.addIntf(s5,'tap33') self.addIntf(s6,'tap34') # if you use, sudo mn --custom custom/optical.py, then register the topo: topos = {'optical': ( lambda: OpticalTopo() )} def run(): c = RemoteController('c','127.0.0.1',6653) net = Mininet( topo=OpticalTopo(),controller=None,autoSetMacs=True) net.addController(c) net.start() #installStaticFlows( net ) CLI( net ) net.stop() # if the script is run directly (sudo custom/optical.py): if __name__ == '__main__': setLogLevel('info') run()