Hi Carlos, Can you please let me know what test environment you used for this testing. Are you using VM or installed the mininet software source version.
James Henrydoss -----Original Message----- From: openflow-discuss [mailto:openflow-discuss-boun...@mailman.stanford.edu] On Behalf Of Carlos Ferreira Sent: Thursday, December 22, 2016 6:47 AM To: openflow-discuss@lists.stanford.edu <openflow-disc...@mailman.stanford.edu> Subject: [openflow-discuss] mininet not obeying to mac specification, when creating a host. Hello to all! To start, I know that there is a mininet mailing list. I have already sent an e-mail to there, but until now, I had no response. This is my issue. I have created a python program to create a testing topology. For some reason, when I use the "addHost" method and use the argument "mac" to specify the mac address for the host interface, mininet ignores the provided mac address an seems to create and specify the hosts with random mac addresses. I do not know why this is happening... Can anyone help me? This is my Python program #### Starts here #!/usr/bin/python2 """ Custom Network Topology 2 different zones each controlled by a different Controller Each controller manages 3 OpenFlow switches Each OF Switch has 3 hosts connected Each zone has a triangle shaped topology, where all switches are conected to the controller 2 Switches from each zone, interconnect the two zones - Switch 2 from Zone 1 connects to the Switch 1 from Zone 2 - Switch 3 from Zone 1 connects to the Switch 2 from Zone 2 The two controllers are remote controllers, residing outside from the mininet environment. """ from struct import pack from mininet.net import Mininet from mininet.node import RemoteController from mininet.log import setLogLevel from mininet.cli import CLI def byteStr2HexStr(byteStr): return ''.join([str.format("{:02X}", ord(x)) for x in byteStr]).strip() setLogLevel('info') net = Mininet(build=False) c1 = net.addController("c1", controller=RemoteController, ip='192.168.1.254', port=6631) c2 = net.addController("c2", controller=RemoteController, ip='192.168.1.254', port=6632) c1_s1 = net.addSwitch("c1_s1", protocols='OpenFlow13', dpid=byteStr2HexStr(pack("!Q", 1)), mac='01:00:00:01:01:00') c1_s2 = net.addSwitch("c1_s2", protocols='OpenFlow13', dpid=byteStr2HexStr(pack("!Q", 2)), mac='01:00:00:01:02:00') c1_s3 = net.addSwitch("c1_s3", protocols='OpenFlow13', dpid=byteStr2HexStr(pack("!Q", 3)), mac='01:00:00:01:03:00') c2_s1 = net.addSwitch("c2_s1", protocols='OpenFlow13', dpid=byteStr2HexStr(pack("!Q", 4)), mac='01:00:00:02:01:00') c2_s2 = net.addSwitch("c2_s2", protocols='OpenFlow13', dpid=byteStr2HexStr(pack("!Q", 5)), mac='01:00:00:02:02:00') c2_s3 = net.addSwitch("c2_s3", protocols='OpenFlow13', dpid=byteStr2HexStr(pack("!Q", 6)), mac='01:00:00:02:03:00') switches_c1 = [c1_s1, c1_s2, c1_s3] switches_c2 = [c2_s1, c2_s2, c2_s3] c1_s1_h1 = net.addHost("c1_s1_h1", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s1_h1")], ip='0.0.0.0', mac='01:00:00:01:01:01') c1_s1_h2 = net.addHost("c1_s1_h2", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s1_h2")], ip='0.0.0.0', mac='01:00:00:01:01:02') c1_s1_h3 = net.addHost("c1_s1_h3", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s1_h3")], ip='0.0.0.0', mac='01:00:00:01:01:03') c1_s2_h1 = net.addHost("c1_s2_h1", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s2_h1")], ip='0.0.0.0', mac='01:00:00:01:02:01') c1_s2_h2 = net.addHost("c1_s2_h2", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s2_h2")], ip='0.0.0.0', mac='01:00:00:01:02:02') c1_s2_h3 = net.addHost("c1_s2_h3", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s2_h3")], ip='0.0.0.0', mac='01:00:00:01:02:03') c1_s3_h1 = net.addHost("c1_s3_h1", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s3_h1")], ip='0.0.0.0', mac='01:00:00:01:03:01') c1_s3_h2 = net.addHost("c1_s3_h2", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s3_h2")], ip='0.0.0.0', mac='01:00:00:01:03:02') c1_s3_h3 = net.addHost("c1_s3_h3", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c1_s3_h3")], ip='0.0.0.0', mac='01:00:00:01:03:03') c2_s1_h1 = net.addHost("c1_s1_h1", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s1_h1")], ip='0.0.0.0', mac='01:00:00:02:01:01') c2_s1_h2 = net.addHost("c1_s1_h2", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s1_h2")], ip='0.0.0.0', mac='01:00:00:02:01:02') c2_s1_h3 = net.addHost("c1_s1_h3", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s1_h3")], ip='0.0.0.0', mac='01:00:00:02:01:03') c2_s2_h1 = net.addHost("c1_s2_h1", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s2_h1")], ip='0.0.0.0', mac='01:00:00:02:02:01') c2_s2_h2 = net.addHost("c1_s2_h2", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s2_h2")], ip='0.0.0.0', mac='01:00:00:02:02:02') c2_s2_h3 = net.addHost("c1_s2_h3", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s2_h3")], ip='0.0.0.0', mac='01:00:00:02:02:03') c2_s3_h1 = net.addHost("c1_s3_h1", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s3_h1")], ip='0.0.0.0', mac='01:00:00:02:03:01') c2_s3_h2 = net.addHost("c1_s3_h2", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s3_h2")], ip='0.0.0.0', mac='01:00:00:02:03:02') c2_s3_h3 = net.addHost("c1_s3_h3", privateDirs=['/home/mininet/Scenarios/Hosts/{}'.format("c2_s3_h3")], ip='0.0.0.0', mac='01:00:00:02:03:03') hosts = [c1_s1_h1, c1_s1_h2, c1_s1_h3, c1_s2_h1, c1_s2_h2, c1_s2_h3, c1_s3_h1, c1_s3_h2, c1_s3_h3, c2_s1_h1, c2_s1_h2, c2_s1_h3, c2_s2_h1, c2_s2_h2, c2_s2_h3, c2_s3_h1, c2_s3_h2, c2_s3_h3] net.addLink(c1_s1_h1, c1_s1) net.addLink(c1_s1_h2, c1_s1) net.addLink(c1_s1_h3, c1_s1) net.addLink(c1_s2_h1, c1_s2) net.addLink(c1_s2_h2, c1_s2) net.addLink(c1_s2_h3, c1_s2) net.addLink(c1_s3_h1, c1_s3) net.addLink(c1_s3_h2, c1_s3) net.addLink(c1_s3_h3, c1_s3) net.addLink(c2_s1_h1, c2_s1) net.addLink(c2_s1_h2, c2_s1) net.addLink(c2_s1_h3, c2_s1) net.addLink(c2_s2_h1, c2_s2) net.addLink(c2_s2_h2, c2_s2) net.addLink(c2_s2_h3, c2_s2) net.addLink(c2_s3_h1, c2_s3) net.addLink(c2_s3_h2, c2_s3) net.addLink(c2_s3_h3, c2_s3) net.addLink(c1_s2, c2_s1) net.addLink(c1_s3, c2_s2) net.build() for switch in switches_c1: switch.start([c1]) for switch in switches_c2: switch.start([c2]) for host in hosts: host.cmdPrint("dhclient {} &".format(host.defaultIntf().name)) CLI(net) net.stop() ### Ends Here. I start this program, named "testing_scenario.py", inside the Ubuntu VM provided in the mininet website, by using the following console command: sudo ./testing_scenario.py -- Carlos Miguel Ferreira Researcher at Telecommunications Institute Aveiro - Portugal Work E-mail - c...@av.it.pt Skype & GTalk -> carlosmf...@gmail.com LinkedIn -> http://www.linkedin.com/in/carlosmferreira _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
