diff --git a/device/alibaba/x86_64-alibaba_as13-32h-cl-r0/plugins/sfputil.py b/device/alibaba/x86_64-alibaba_as13-32h-cl-r0/plugins/sfputil.py
index 3d0982f7eb2e..a64483cc2e1e 100755
--- a/device/alibaba/x86_64-alibaba_as13-32h-cl-r0/plugins/sfputil.py
+++ b/device/alibaba/x86_64-alibaba_as13-32h-cl-r0/plugins/sfputil.py
@@ -154,3 +154,31 @@ def reset(self, port_num):
         reg_file.close()
 
         return True
+
+    def get_transceiver_change_event(self, timeout=0):
+        """
+        TBD
+        """
+        return NotImplementedError
+
+    def tx_disable(self, port_num, disable):
+        """
+        @param port_num index of physical port
+        @param disable, True  -- disable port tx signal
+                        False -- enable port tx signal
+        @return True when operation success, False on failure.
+        """
+        if port_num not in range(self.port_start, self.port_end + 1) or type(disable) != bool:
+            return False
+
+        try:
+            disable = hex(1) if disable else hex(0)
+            port_name = self.get_port_name(port_num)
+            reg_file = open(
+                "/".join([self.PORT_INFO_PATH, port_name, "sfp_txdisable"]), "w")
+            reg_file.write(disable)
+        except IOError as e:
+            print "Error: unable to open file: %s" % str(e)
+            return False
+
+        return True
diff --git a/device/alibaba/x86_64-alibaba_as13-48f8h-cl-r0/plugins/sfputil.py b/device/alibaba/x86_64-alibaba_as13-48f8h-cl-r0/plugins/sfputil.py
index 44fa92c5718e..bc4ded2b9121 100755
--- a/device/alibaba/x86_64-alibaba_as13-48f8h-cl-r0/plugins/sfputil.py
+++ b/device/alibaba/x86_64-alibaba_as13-48f8h-cl-r0/plugins/sfputil.py
@@ -154,3 +154,31 @@ def reset(self, port_num):
         reg_file.close()
 
         return True
+
+    def get_transceiver_change_event(self, timeout=0):
+        """
+        TBD
+        """
+        return NotImplementedError
+
+    def tx_disable(self, port_num, disable):
+        """
+        @param port_num index of physical port
+        @param disable, True  -- disable port tx signal
+                        False -- enable port tx signal
+        @return True when operation success, False on failure.
+        """
+        if port_num not in range(self.port_start, self.port_end + 1) or type(disable) != bool:
+            return False
+
+        try:
+            disable = hex(1) if disable else hex(0)
+            port_name = self.get_port_name(port_num)
+            reg_file = open(
+                "/".join([self.PORT_INFO_PATH, port_name, "sfp_txdisable"]), "w")
+            reg_file.write(disable)
+        except IOError as e:
+            print "Error: unable to open file: %s" % str(e)
+            return False
+
+        return True
diff --git a/device/alibaba/x86_64-alibaba_as23-128h-cl-r0/plugins/sfputil.py b/device/alibaba/x86_64-alibaba_as23-128h-cl-r0/plugins/sfputil.py
index 88c300685e0b..82e4584b720d 100755
--- a/device/alibaba/x86_64-alibaba_as23-128h-cl-r0/plugins/sfputil.py
+++ b/device/alibaba/x86_64-alibaba_as23-128h-cl-r0/plugins/sfputil.py
@@ -154,3 +154,31 @@ def reset(self, port_num):
         reg_file.close()
 
         return True
+
+    def get_transceiver_change_event(self, timeout=0):
+        """
+        TBD
+        """
+        return NotImplementedError
+
+    def tx_disable(self, port_num, disable):
+        """
+        @param port_num index of physical port
+        @param disable, True  -- disable port tx signal
+                        False -- enable port tx signal
+        @return True when operation success, False on failure.
+        """
+        if port_num not in range(self.port_start, self.port_end + 1) or type(disable) != bool:
+            return False
+
+        try:
+            disable = hex(1) if disable else hex(0)
+            port_name = self.get_port_name(port_num)
+            reg_file = open(
+                "/".join([self.PORT_INFO_PATH, port_name, "sfp_txdisable"]), "w")
+            reg_file.write(disable)
+        except IOError as e:
+            print "Error: unable to open file: %s" % str(e)
+            return False
+
+        return True
diff --git a/platform/broadcom/sonic-platform-modules-cel b/platform/broadcom/sonic-platform-modules-cel
index 8debc179ec1a..2391914c4d3f 160000
--- a/platform/broadcom/sonic-platform-modules-cel
+++ b/platform/broadcom/sonic-platform-modules-cel
@@ -1 +1 @@
-Subproject commit 8debc179ec1ae9e668bd7376fa6ff77e1e6987de
+Subproject commit 2391914c4d3f3de0c6d203eabc53e96d8727cfbc