diff --git a/utils/src/com/cloud/utils/nio/Link.java b/utils/src/com/cloud/utils/nio/Link.java
index 1c33fc5b1f2..4cf0a6a01b8 100755
--- a/utils/src/com/cloud/utils/nio/Link.java
+++ b/utils/src/com/cloud/utils/nio/Link.java
@@ -162,6 +162,10 @@ public class Link {
             if (s_logger.isTraceEnabled()) {
                 s_logger.trace("Packet length is " + readSize);
             }
+            
+            if (readSize > 65535) {
+            	throw new IOException("Packet is too big! Discard it. Size: " + readSize);
+            }
             _readBuffer.clear();
             _readSize = false;
             
@@ -258,6 +262,10 @@ public class Link {
             int remaining = data[0].getInt() + 4;
             data[0].reset();
             
+            if (remaining > 65535) {
+            	throw new IOException("Fail to send a too big packet! Size: " + remaining);
+            }
+            
             while (remaining > 0) {
                 if (s_logger.isTraceEnabled()) {
                     s_logger.trace("Writing " + remaining);