reverted the line specified
diff --git a/src/python/oftest/dataplane.py b/src/python/oftest/dataplane.py
index 87e7dec..2124421 100644
--- a/src/python/oftest/dataplane.py
+++ b/src/python/oftest/dataplane.py
@@ -245,9 +245,7 @@
         os.system(cmd)
 
 
-
-
-class DataPlanePortPcap():
+class DataPlanePortPcap(DataPlanePort):
     """
     Alternate port implementation using libpcap. This is required for recent
     versions of Linux (such as Linux 3.2 included in Ubuntu 12.04) which