diff --git a/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BGPErrorType.java b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BGPErrorType.java
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+++ b/bgp/bgpio/src/main/java/org/onosproject/bgpio/types/BGPErrorType.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.bgpio.types;
+
+/**
+ * BgpErrorType class defines all errorCodes and error Subcodes required for Notification message.
+ */
+public final class BGPErrorType {
+    private BGPErrorType() {
+    }
+
+    //Error Codes
+    public static final byte MESSAGE_HEADER_ERROR = 1;
+    public static final byte OPEN_MESSAGE_ERROR = 2;
+    public static final byte UPDATE_MESSAGE_ERROR = 3;
+    public static final byte HOLD_TIMER_EXPIRED = 4;
+    public static final byte FINITE_STATE_MACHINE_ERROR = 4;
+    public static final byte CEASE = 5;
+
+    //Message Header Error subcodes
+    public static final byte CONNECTION_NOT_SYNCHRONIZED = 1;
+    public static final byte BAD_MESSAGE_LENGTH = 2;
+    public static final byte BAD_MESSAGE_TYPE = 3;
+
+    //OPEN Message Error subcodes
+    public static final byte UNSUPPORTED_VERSION_NUMBER = 1;
+    public static final byte BAD_PEER_AS = 2;
+    public static final byte BAD_BGP_IDENTIFIER = 3;
+    public static final byte UNSUPPORTED_OPTIONAL_PARAMETER = 4;
+    public static final byte UNACCEPTABLE_HOLD_TIME = 5;
+
+    //UPDATE Message Error subcodes
+    public static final byte MALFORMED_ATTRIBUTE_LIST = 1;
+    public static final byte UNRECOGNIZED_WELLKNOWN_ATTRIBUTE = 2;
+    public static final byte MISSING_WELLKNOWN_ATTRIBUTE = 3;
+    public static final byte ATTRIBUTE_FLAGS_ERROR = 4;
+    public static final byte ATTRIBUTE_LENGTH_ERROR = 5;
+    public static final byte INVALID_ORIGIN_ATTRIBUTE = 6;
+    public static final byte INVALID_NEXTHOP_ATTRIBUTE = 8;
+    public static final byte OPTIONAL_ATTRIBUTE_ERROR = 9;
+    public static final byte INVALID_NETWORK_FIELD = 10;
+    public static final byte MALFORMED_ASPATH = 11;
+}
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