diff --git a/tests/utests/voltha/extensions/omci/test_omci.py b/tests/utests/voltha/extensions/omci/test_omci.py
index 9660b20..1fa4397 100644
--- a/tests/utests/voltha/extensions/omci/test_omci.py
+++ b/tests/utests/voltha/extensions/omci/test_omci.py
@@ -542,6 +542,36 @@
         )
         self.assertGeneratedFrameEquals(frame, ref)
 
+    def test_parse_enh_security_avc(self):
+        refs = [
+            "0000110a014c0000008000202020202020202020202020202020202020202020"
+            "2020202020202020000000280be43cf4"
+        ]
+        for i, data in enumerate(refs):
+            frame = OmciFrame(hex2raw(data))
+            omci = frame.omci_message
+            # frame.show()
+
+    def test_parse_alarm_message(self):
+        refs = [
+            "0000100a00050101000000000000000000000000000000000000000000000000"
+            "0000000220000000000000280be43cf4"
+        ]
+        for i, data in enumerate(refs):
+            frame = OmciFrame(hex2raw(data))
+            omci = frame.omci_message
+            # frame.show()
+
+    def test_parse_results(self):
+        refs = [
+            "00001B0a014c0000008000202020202020202020202020202020202020202020"
+            "2020202020202020000000280be43cf4"
+        ]
+        for i, data in enumerate(refs):
+            frame = OmciFrame(hex2raw(data))
+            omci = frame.omci_message
+            # frame.show()
+
     def test_parsing_mib_upload_next_responses(self):
         refs = [
             "00032e0a00020000000200008000000000000000000000000000000000000000"
diff --git a/voltha/extensions/omci/omci_frame.py b/voltha/extensions/omci/omci_frame.py
index edff530..28dc298 100644
--- a/voltha/extensions/omci/omci_frame.py
+++ b/voltha/extensions/omci/omci_frame.py
@@ -23,7 +23,8 @@
     OmciGetAllAlarms, OmciGetAllAlarmsResponse, OmciGetAllAlarmsNext, \
     OmciMibResetResponse, OmciMibReset, OmciMibUploadNextResponse, \
     OmciMibUploadNext, OmciMibUploadResponse, OmciMibUpload, \
-    OmciGetAllAlarmsNextResponse
+    OmciGetAllAlarmsNextResponse, OmciAttributeValueChange, \
+    OmciTestResult, OmciAlarmNotification
 from voltha.extensions.omci.omci_messages import OmciCreateResponse
 
 
@@ -95,8 +96,19 @@
             PacketField("omci_message", None, OmciMibResetResponse), align=36),
             lambda pkt: pkt.message_type == OmciMibResetResponse.message_id),
 
+        ConditionalField(FixedLenField(
+            PacketField("omci_message", None, OmciAlarmNotification), align=36),
+            lambda pkt: pkt.message_type == OmciAlarmNotification.message_id),
+        ConditionalField(FixedLenField(
+            PacketField("omci_message", None, OmciAttributeValueChange), align=36),
+            lambda pkt: pkt.message_type == OmciAttributeValueChange.message_id),
+        ConditionalField(FixedLenField(
+            PacketField("omci_message", None, OmciTestResult), align=36),
+            lambda pkt: pkt.message_type == OmciTestResult.message_id),
+
         # TODO add entries for remaining OMCI message types
 
+
         IntField("omci_trailer", 0x00000028)
     ]
 
diff --git a/voltha/extensions/omci/omci_messages.py b/voltha/extensions/omci/omci_messages.py
index 90a0cea..e728bff 100644
--- a/voltha/extensions/omci/omci_messages.py
+++ b/voltha/extensions/omci/omci_messages.py
@@ -16,7 +16,7 @@
 import structlog
 from enum import Enum
 from scapy.fields import ByteField, StrFixedLenField, ConditionalField, Field
-from scapy.fields import ShortField
+from scapy.fields import ShortField, BitField
 from scapy.packet import Packet
 
 from voltha.extensions.omci.omci_defs import AttributeAccess
@@ -298,3 +298,36 @@
         ShortField("entity_id", 0),
         ByteField("success_code", 0)
     ]
+
+
+class OmciAlarmNotification(OmciMessage):
+    name = "AlarmNotification"
+    message_id = 0x10
+    fields_desc = [
+        ShortField("entity_class", None),
+        ShortField("entity_id", 0),
+        BitField("alarm_bit_map", 0, 224),
+        ByteField("alarm_sequence_number", None)
+    ]
+
+
+class OmciAttributeValueChange(OmciMessage):
+    name = "AttributeValueChange"
+    message_id = 0x11
+    fields_desc = [
+        ShortField("entity_class", None),
+        ShortField("entity_id", 0),
+        ShortField("attributes_mask", None),
+        OmciMaskedData("data")
+    ]
+
+
+class OmciTestResult(OmciMessage):
+    name = "TestResult"
+    message_id = 0x1B
+    fields_desc = [
+        ShortField("entity_class", None),
+        ShortField("entity_id", 0)
+        # ME Test specific message contents starts here
+        # TODO: Can this be coded easily with scapy?
+    ]