Changes between Version 2 and Version 3 of EsperimentiTopologieMininet

Timestamp:

Oct 27, 2014, 8:31:34 PM (11 years ago)

Author:

monga

Comment:

--

EsperimentiTopologieMininet

@@ -124 +124 @@
 }}}
  
+== Esempio con routing ==
+
+{{{#!python
+from mininet.topo import Topo
+from mininet.net import Mininet
+from mininet.link import TCLink
+from mininet.cli import CLI
+
+class MyTopo(Topo):
+    def __init__(self):
+        Topo.__init__(self)
+        s1 = self.addSwitch('s1')
+        s2 = self.addSwitch('s2')
+
+        h = []
+        for i in xrange(4):
+            h.append(self.addHost('h' + str(i+1)))
+
+        self.addLink(s1, h[0])
+        self.addLink(s1, h[1])
+        self.addLink(s2, h[2])
+        self.addLink(s2, h[3])
+
+        # Gateway node
+        gw = self.addHost('h5')
+        self.addLink(s1, gw)
+        self.addLink(s2, gw)
+
+
+if __name__ == '__main__':
+    net = Mininet(topo=MyTopo(), link=TCLink)
+    h1, h2 = net.get('h1','h2')
+    h1.setIP('192.168.1.10/24')
+    h2.setIP('192.168.1.20/24')
+
+    
+    h3, h4 = net.get('h3','h4')
+    h3.setIP('192.168.2.100/24')
+    h4.setIP('192.168.2.200/24')
+
+    for h in net.hosts:
+        if h.name != 'h5': # gateway
+            h.setDefaultRoute(intf=h.intf())
+
+    gw = net.get('h5')
+    gw.setIP('192.168.1.1/24', intf='h5-eth0')
+    gw.setIP('192.168.2.1/24', intf='h5-eth1')
+    h1.cmd('ip route add 192.168.2.0/24 via 192.168.1.1')
+    h2.cmd('ip route add 192.168.2.0/24 via 192.168.1.1')
+    h3.cmd('ip route add 192.168.1.0/24 via 192.168.2.1')
+    h4.cmd('ip route add 192.168.1.0/24 via 192.168.2.1')
+
+    gw.setHostRoute('192.168.1.0', intf='h5-eth0')
+    gw.setHostRoute('192.168.2.0', intf='h5-eth1')
+    gw.cmd('sysctl -w net.ipv4.ip_forward=1')
+    
+    net.start()
+    CLI(net)
+    net.stop()
+}}}