Try to avoid race condition problems in unittests
diff --git a/src/emuvim/test/unittests/test_openstack.py b/src/emuvim/test/unittests/test_openstack.py
index 707b999..cb4fb03 100755
--- a/src/emuvim/test/unittests/test_openstack.py
+++ b/src/emuvim/test/unittests/test_openstack.py
@@ -34,6 +34,7 @@
 import unittest
 import requests
 import simplejson as json
+import time
 
 from emuvim.test.api_base_openstack import ApiBaseOpenStack
 
@@ -54,10 +55,12 @@
 
         # start api
         self.startApi()
+        time.sleep(2)
 
         # start Mininet network
         self.startNet()
-
+        time.sleep(2)
+        
     @unittest.skip("temporarily disabled")
     def testChainingDummy(self):
         print('->>>>>>> test Chaining Class->>>>>>>>>>>>>>>')