diff --git a/src/main/java/com/aeon/tcp/csdj/session/CsdjSession.java b/src/main/java/com/aeon/tcp/csdj/session/CsdjSession.java
index 0d65b72..4b76303 100644
--- a/src/main/java/com/aeon/tcp/csdj/session/CsdjSession.java
+++ b/src/main/java/com/aeon/tcp/csdj/session/CsdjSession.java
@@ -118,28 +118,35 @@ public class CsdjSession implements AutoCloseable {
 
         switch (id) {
             case ID_PASSWORD:
+                log.info("[CSDJ] Received frame type: ID_PASSWORD");
                 handleIdPassword(frame);
                 break;
             case ID_PASSWORD_ACK:
+                log.info("[CSDJ] Received frame type: ID_PASSWORD_ACK");
                 handleIdPasswordAck(frame);
                 break;
             case NEW_MESSAGE_SEND_READY:
+                log.info("[CSDJ] Received frame type: NEW_MESSAGE_SEND_READY");
                 handleNmsr(frame);
                 break;
             case INFORMATION:
+                log.info("[CSDJ] Received frame type: INFORMATION");
                 handleInformation(frame);
                 break;
             case RECEIVE_READY:
+                log.info("[CSDJ] Received frame type: RECEIVE_READY");
                 handleRr(frame);
                 break;
             case DISCONNECT:
+                log.info("[CSDJ] Received frame type: DISCONNECT");
                 handleDisc(frame);
                 break;
             case DISCONNECT_ACK:
+                log.info("[CSDJ] Received frame type: DISCONNECT_ACK");
                 handleDiscAck(frame);
                 break;
             default:
-                log.warn("Unknown frame: {}", id);
+                log.warn("[CSDJ] Unknown frame: {}", id);
         }
     }