Does your POX log have any warnings or errors in it? Those can be really
informative.
-- Murphy
On Dec 14, 2014, at 9:56 PM, chaitanya tanwar <chaitanya.tan...@gmail.com>
wrote:
> I have created a network using the following code, and pox as remote
> controller with l2.learning module.
>
>
> #!/usr/bin/python
> from mininet.net import Mininet
> from mininet.node import Controller, RemoteController, OVSController
> from mininet.node import CPULimitedHost, Host, Node
> from mininet.node import OVSKernelSwitch, UserSwitch
> from mininet.node import IVSSwitch
> from mininet.cli import CLI
> from mininet.log import setLogLevel, info
> from mininet.link import TCLink, Intf
>
> def myNetwork():
>
> net = Mininet( topo=None,
> build=False,
> ipBase='10.0.0.0/8')
>
> #info( '*** Adding controller\n' )
> #c0=net.addController(name='c0',
> # controller=None)
> info( '*** Add switches\n')
> s1 = net.addSwitch('s1', cls=OVSKernelSwitch)
> s2 = net.addSwitch('s2', cls=OVSKernelSwitch)
> s3 = net.addSwitch('s3', cls=OVSKernelSwitch)
> info( '*** Add hosts\n')
>
> h1 = net.addHost('h1', cls=Host, mac='00:00:00:00:00:01',
> ip='10.0.0.2/24', defaultRoute='h1-eth0')
> h2 = net.addHost('h2', cls=Host, mac='00:00:00:00:00:02',
> ip='10.0.0.3/24', defaultRoute='h2-eth0')
> h4 = net.addHost('h4', cls=Host, mac='00:00:00:00:00:04',
> ip='20.0.0.3/24', defaultRoute='h4-eth0')
> h3 = net.addHost('h3', cls=Host, mac='00:00:00:00:00:03',
> ip='30.0.0.2/24', defaultRoute='h3-eth0')
> h5 = net.addHost('h5', cls=Host, mac='00:00:00:00:00:05',
> ip='20.0.0.3/24', defaultRoute='h5-eth0')
>
> info( '*** Add links\n')
> linkBW = {'bw':100}
> net.addLink(h1, s1, cls=TCLink , **linkBW)
> net.addLink(h2, s1, cls=TCLink , **linkBW)
> net.addLink(h3, s2, cls=TCLink , **linkBW)
> net.addLink(h4, s3, cls=TCLink , **linkBW)
> net.addLink(h5, s3, cls=TCLink , **linkBW)
> net.addLink(s1, s2, cls=TCLink , **linkBW)
> net.addLink(s3, s2, cls=TCLink , **linkBW)
> info( '*** Starting network\n')
> net.build()
> #info( '*** Starting controllers\n')
> #for controller in net.controllers:
> # controller.start()
> info( '*** Starting switches\n')
> net.get('s1')#.start([c0])
> net.get('s2')#.start([c0])
> net.get('s3')#.start([c0])
> info( '*** Configuring switches\n')
>
> CLI(net)
> net.stop()
>
> if __name__ == '__main__':
> setLogLevel( 'info' )
> myNetwork()
>
>
> I am able to ping to each other.
> But now I want add an entry to all switch. If h2 sends packet to h3 then
> divert it to h5 on the basis of IP addresses by the following code.
>
>
> from pox.core import core
> import pox.openflow.libopenflow_01 as of
> from pox.lib.revent import *
> from pox.lib.util import dpidToStr
> from pox.lib.addresses import EthAddr
> from collections import namedtuple
> import os
>
> log = core.getLogger()
>
> class Diversion(EventMixin):
> def __init__ (self) :
> self.listenTo(core.openflow)
> log.debug("Enabling Diversion Module")
>
> def _handle_ConnectionUp (self, event):
> msg = of.ofp_flow_mod()
> msg.match = of.ofp_match(nw_src = IPAddr("10.0.0.3"),nw_dst =
> IPAddr("10.0.0.3"))
> msg.actions.append(ofp_action_nw_addr.set_dst(IPAddr("192.168.1.14")))
> self.connection.send(msg)
> log.debug(" rules installed on %s", dpidToStr(event.dpid))
>
> def launch():
> core.registerNew(Diversion)
>
>
> But now i am not able to ping any of the host..
>
> Please direct me to the error.
>
>
> Thanks and Regards.
