Adding topology files to dependencies
diff --git a/TestON/dependencies/topo-100sw.py b/TestON/dependencies/topo-100sw.py
new file mode 100644
index 0000000..308a3f1
--- /dev/null
+++ b/TestON/dependencies/topo-100sw.py
@@ -0,0 +1,31 @@
+
+from mininet.topo import Topo
+
+class MyTopo( Topo ):
+        "100 'floating' switch topology"
+
+        def __init__( self ):
+                # Initialize topology
+                Topo.__init__( self )
+
+                sw_list = []
+
+                for i in range(1, 101):
+                        sw_list.append(
+                                self.addSwitch(
+                                        's'+str(i),
+                                        dpid = str(i).zfill(16)))
+
+
+                #Below connections are used for test cases
+                #that need to test link and port events
+                #Add link between switch 1 and switch 2
+                self.addLink(sw_list[0],sw_list[1])
+                
+                #Create hosts and attach to sw 1 and sw 2
+                h1 = self.addHost('h1')
+                h2 = self.addHost('h2')
+                self.addLink(sw_list[0],h1)
+                self.addLink(sw_list[1],h2)
+        
+topos = { 'mytopo': ( lambda: MyTopo() ) }