Feat: Lab1 done

lab1_111550013/lab1_part2_111550013.py

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+from mininet.topo import Topo
+
+class Lab1_Topo_111550013(Topo):
+    def __init__(self):
+        Topo.__init__(self)
+
+        h1 = self.addHost('h1')
+        h2 = self.addHost('h2')
+        h3 = self.addHost('h3')
+        h4 = self.addHost('h4')
+        h5 = self.addHost('h5')
+
+        s1 = self.addSwitch('s1')
+        s2 = self.addSwitch('s2')
+        s3 = self.addSwitch('s3')
+        s4 = self.addSwitch('s4')
+
+        self.addLink(h1, s1)
+        self.addLink(h2, s2)
+        self.addLink(h3, s3)
+        self.addLink(h4, s4)
+        self.addLink(h5, s4)
+
+        self.addLink(s1, s2)
+        self.addLink(s2, s3)
+        self.addLink(s2, s4)
+
+topos = {'topo_part2_111550013': Lab1_Topo_111550013}