diff --git a/src/python/loxi/of11/instruction.py b/src/python/loxi/of11/instruction.py
index 52ee289..961f3c6 100644
--- a/src/python/loxi/of11/instruction.py
+++ b/src/python/loxi/of11/instruction.py
@@ -1,6 +1,7 @@
 # Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior University
 # Copyright (c) 2011, 2012 Open Networking Foundation
 # Copyright (c) 2012, 2013 Big Switch Networks, Inc.
+# See the file LICENSE.pyloxi which should have been included in the source distribution
 
 # Automatically generated by LOXI from template instruction.py
 # Do not modify
@@ -24,7 +25,7 @@
     pass
 
 class apply_actions(Instruction):
-    type = const.OFPIT_APPLY_ACTIONS
+    type = 4
 
     def __init__(self, actions=None):
         if actions != None:
@@ -38,7 +39,7 @@
         packed.append(struct.pack("!H", self.type))
         packed.append(struct.pack("!H", 0)) # placeholder for len at index 1
         packed.append('\x00' * 4)
-        packed.append("".join([x.pack() for x in self.actions]))
+        packed.append(util.pack_list(self.actions))
         length = sum([len(x) for x in packed])
         packed[1] = struct.pack("!H", length)
         return ''.join(packed)
@@ -50,9 +51,9 @@
             reader = buf
         else:
             reader = loxi.generic_util.OFReader(buf)
-        _type = reader.read('!H')[0]
-        assert(_type == const.OFPIT_APPLY_ACTIONS)
-        _len = reader.read('!H')[0]
+        _type = reader.read("!H")[0]
+        assert(_type == 4)
+        _len = reader.read("!H")[0]
         reader.skip(4)
         obj.actions = action.unpack_list(reader)
         return obj
@@ -80,7 +81,7 @@
         q.text('}')
 
 class clear_actions(Instruction):
-    type = const.OFPIT_CLEAR_ACTIONS
+    type = 5
 
     def __init__(self):
         return
@@ -101,9 +102,9 @@
             reader = buf
         else:
             reader = loxi.generic_util.OFReader(buf)
-        _type = reader.read('!H')[0]
-        assert(_type == const.OFPIT_CLEAR_ACTIONS)
-        _len = reader.read('!H')[0]
+        _type = reader.read("!H")[0]
+        assert(_type == 5)
+        _len = reader.read("!H")[0]
         reader.skip(4)
         return obj
 
@@ -127,7 +128,7 @@
         q.text('}')
 
 class experimenter(Instruction):
-    type = const.OFPIT_EXPERIMENTER
+    type = 65535
 
     def __init__(self, experimenter=None, data=None):
         if experimenter != None:
@@ -137,7 +138,7 @@
         if data != None:
             self.data = data
         else:
-            self.data = ""
+            self.data = ''
         return
 
     def pack(self):
@@ -157,10 +158,10 @@
             reader = buf
         else:
             reader = loxi.generic_util.OFReader(buf)
-        _type = reader.read('!H')[0]
-        assert(_type == const.OFPIT_EXPERIMENTER)
-        _len = reader.read('!H')[0]
-        obj.experimenter = reader.read('!L')[0]
+        _type = reader.read("!H")[0]
+        assert(_type == 65535)
+        _len = reader.read("!H")[0]
+        obj.experimenter = reader.read("!L")[0]
         obj.data = str(reader.read_all())
         return obj
 
@@ -191,7 +192,7 @@
         q.text('}')
 
 class goto_table(Instruction):
-    type = const.OFPIT_GOTO_TABLE
+    type = 1
 
     def __init__(self, table_id=None):
         if table_id != None:
@@ -217,10 +218,10 @@
             reader = buf
         else:
             reader = loxi.generic_util.OFReader(buf)
-        _type = reader.read('!H')[0]
-        assert(_type == const.OFPIT_GOTO_TABLE)
-        _len = reader.read('!H')[0]
-        obj.table_id = reader.read('!B')[0]
+        _type = reader.read("!H")[0]
+        assert(_type == 1)
+        _len = reader.read("!H")[0]
+        obj.table_id = reader.read("!B")[0]
         reader.skip(3)
         return obj
 
@@ -247,7 +248,7 @@
         q.text('}')
 
 class write_actions(Instruction):
-    type = const.OFPIT_WRITE_ACTIONS
+    type = 3
 
     def __init__(self, actions=None):
         if actions != None:
@@ -261,7 +262,7 @@
         packed.append(struct.pack("!H", self.type))
         packed.append(struct.pack("!H", 0)) # placeholder for len at index 1
         packed.append('\x00' * 4)
-        packed.append("".join([x.pack() for x in self.actions]))
+        packed.append(util.pack_list(self.actions))
         length = sum([len(x) for x in packed])
         packed[1] = struct.pack("!H", length)
         return ''.join(packed)
@@ -273,9 +274,9 @@
             reader = buf
         else:
             reader = loxi.generic_util.OFReader(buf)
-        _type = reader.read('!H')[0]
-        assert(_type == const.OFPIT_WRITE_ACTIONS)
-        _len = reader.read('!H')[0]
+        _type = reader.read("!H")[0]
+        assert(_type == 3)
+        _len = reader.read("!H")[0]
         reader.skip(4)
         obj.actions = action.unpack_list(reader)
         return obj
@@ -303,7 +304,7 @@
         q.text('}')
 
 class write_metadata(Instruction):
-    type = const.OFPIT_WRITE_METADATA
+    type = 2
 
     def __init__(self, metadata=None, metadata_mask=None):
         if metadata != None:
@@ -334,12 +335,12 @@
             reader = buf
         else:
             reader = loxi.generic_util.OFReader(buf)
-        _type = reader.read('!H')[0]
-        assert(_type == const.OFPIT_WRITE_METADATA)
-        _len = reader.read('!H')[0]
+        _type = reader.read("!H")[0]
+        assert(_type == 2)
+        _len = reader.read("!H")[0]
         reader.skip(4)
-        obj.metadata = reader.read('!Q')[0]
-        obj.metadata_mask = reader.read('!Q')[0]
+        obj.metadata = reader.read("!Q")[0]
+        obj.metadata_mask = reader.read("!Q")[0]
         return obj
 
     def __eq__(self, other):
@@ -370,10 +371,10 @@
 
 
 parsers = {
+    const.OFPIT_GOTO_TABLE : goto_table.unpack,
+    const.OFPIT_WRITE_METADATA : write_metadata.unpack,
+    const.OFPIT_WRITE_ACTIONS : write_actions.unpack,
     const.OFPIT_APPLY_ACTIONS : apply_actions.unpack,
     const.OFPIT_CLEAR_ACTIONS : clear_actions.unpack,
     const.OFPIT_EXPERIMENTER : experimenter.unpack,
-    const.OFPIT_GOTO_TABLE : goto_table.unpack,
-    const.OFPIT_WRITE_ACTIONS : write_actions.unpack,
-    const.OFPIT_WRITE_METADATA : write_metadata.unpack,
 }