1 files changed, 38 insertions, 0 deletions
diff --git a/src/main/java/com/lumaserv/bgp/protocol/message/BGPNotification.java b/src/main/java/com/lumaserv/bgp/protocol/message/BGPNotification.java
index 54ee9bd..19272e5 100644
--- a/src/main/java/com/lumaserv/bgp/protocol/message/BGPNotification.java
+++ b/src/main/java/com/lumaserv/bgp/protocol/message/BGPNotification.java
@@ -1,5 +1,6 @@
 package com.lumaserv.bgp.protocol.message;
 
+import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.Setter;
 
@@ -10,9 +11,46 @@ public class BGPNotification {
     byte majorErrorCode;
     byte minorErrorCode;
 
+    /** Major error codes */
+    @Getter
+    public enum Error {
+        MESSAGE_HEADER_ERROR(1),
+        OPEN_MESSAGE_ERROR(2),
+        UPDATE_MESSAGE_ERROR(3),
+        HOLD_TIMER_ERROR(4),
+        FSM_ERROR(5),
+        CEASE(6);
+
+        byte code;
+
+        Error(int code) {
+            this.code = (byte)code;
+        }
+    }
+
+    /** Minor error codes for OPEN_MESSAGE_ERROR */
+    @Getter
+    public enum OpenMessageError {
+        UNSUPPORTED_VERSION_NUMBER(1),
+        BAD_PEER_AS(2),
+        BAD_BGP_IDENTIFIER(3),
+        UNSUPPORTED_OPTION_PARAMETER(4),
+        UNACCEPTABLE_HOLD_TIME(5);
+
+        byte code;
+
+        OpenMessageError(int code) {
+            this.code = (byte)code;
+        }
+    }
+
     public BGPNotification(byte[] message) {
         this.majorErrorCode = message[0];
         this.minorErrorCode = message[1];
     }
 
+    @Override
+    public String toString() {
+        return "" + majorErrorCode + ":" + minorErrorCode;
+    }
 }