Added examples, which may or may not work yet.

examples/bigTreePing64.py

@@ -0,0 +1,27 @@
+#!/usr/bin/python
+
+from mininet import init, TreeNet, iperfTest
+
+def bigTreePing64():
+   """Create a tree network of depth 4 and fanout 2, and 
+      test connectivity using pingTest."""
+
+   results = {}
+   
+   print "*** Testing Mininet with kernel and user datapath"
+   
+   for datapath in [ 'kernel', 'user' ]:
+      k = datapath == 'kernel'
+      results[ datapath ] = []
+      for switchCount in range( 1, 4 ):
+         print "*** Creating Linear Network of size", switchCount
+         network = TreeNet( depth=4, fanout=2, kernel=k )
+         testResult = network.run( iperfTest )
+         results[ datapath ] += testResult
+         
+   print "*** Test results:", results
+      
+if __name__ == '__main__':
+   init()
+   linearBandwidthTest()
+