diff --git a/sonic-xcvrd/tests/test_xcvrd.py b/sonic-xcvrd/tests/test_xcvrd.py
index bd7eda753..40e2e5efa 100644
--- a/sonic-xcvrd/tests/test_xcvrd.py
+++ b/sonic-xcvrd/tests/test_xcvrd.py
@@ -261,6 +261,9 @@ def test_CmisManagerTask_get_xcvr_api_exception(self, mock_platform_chassis, moc
         port_change_event = PortChangeEvent('Ethernet0', 1, 0, PortChangeEvent.PORT_SET,
                                             {'speed':'400000', 'lanes':'1,2,3,4,5,6,7,8'})
 
+        task.port_mapping.logical_to_physical['Ethernet0'] = 1
+        task.port_mapping.logical_to_asic['Ethernet0'] = 0
+
         # Case 1: get_xcvr_api() raises an exception
         task.on_port_update_event(port_change_event)
         mock_sfp.get_xcvr_api = MagicMock(side_effect=NotImplementedError)
@@ -1693,6 +1696,8 @@ def test_CmisManagerTask_update_port_transceiver_status_table_sw_cmis_state(self
     @patch('xcvrd.xcvrd._wrapper_get_sfp_type', MagicMock(return_value='QSFP_DD'))
     def test_CmisManagerTask_handle_port_change_event(self):
         port_mapping = PortMapping()
+        port_mapping.logical_port_list = ['Ethernet0']
+        port_mapping.logical_to_physical['Ethernet0'] = 1
         stop_event = threading.Event()
         task = CmisManagerTask(DEFAULT_NAMESPACE, port_mapping, stop_event)
 
@@ -2199,6 +2204,7 @@ def test_CmisManagerTask_task_worker(self, mock_chassis, mock_get_status_tbl):
 
         port_change_event = PortChangeEvent('Ethernet0', 1, 0, PortChangeEvent.PORT_SET,
                                             {'speed':'400000', 'lanes':'1,2,3,4,5,6,7,8'})
+        task.port_mapping.logical_to_physical['Ethernet0'] = 1
         task.on_port_update_event(port_change_event)
         assert len(task.port_dict) == 1
         assert get_cmis_state_from_state_db('Ethernet0', task.xcvr_table_helper.get_status_tbl(task.port_mapping.get_asic_id_for_logical_port('Ethernet0'))) == CMIS_STATE_INSERTED
@@ -2260,6 +2266,7 @@ def test_CmisManagerTask_task_worker(self, mock_chassis, mock_get_status_tbl):
         assert get_cmis_state_from_state_db('Ethernet1', task.xcvr_table_helper.get_status_tbl(task.port_mapping.get_asic_id_for_logical_port('Ethernet1'))) == CMIS_STATE_UNKNOWN
 
         task.port_mapping.logical_port_list = MagicMock()
+        task.port_mapping.logical_to_physical['Ethernet1'] = 2
         port_change_event = PortChangeEvent('PortConfigDone', -1, 0, PortChangeEvent.PORT_SET)
         task.on_port_update_event(port_change_event)
         assert task.isPortConfigDone
@@ -2403,6 +2410,7 @@ def test_CmisManagerTask_task_worker_fastboot(self, mock_chassis, mock_get_statu
 
         port_change_event = PortChangeEvent('Ethernet0', 1, 0, PortChangeEvent.PORT_SET,
                                             {'speed':'400000', 'lanes':'1,2,3,4,5,6,7,8'})
+        task.port_mapping.logical_to_physical['Ethernet0'] = 1
         task.on_port_update_event(port_change_event)
         assert len(task.port_dict) == 1
         assert get_cmis_state_from_state_db('Ethernet0', task.xcvr_table_helper.get_status_tbl(task.port_mapping.get_asic_id_for_logical_port('Ethernet0'))) == CMIS_STATE_INSERTED
@@ -2532,6 +2540,7 @@ def test_CmisManagerTask_task_worker_host_tx_ready_false(self, mock_chassis, moc
         assert get_cmis_state_from_state_db('Ethernet0', task.xcvr_table_helper.get_status_tbl(task.port_mapping.get_asic_id_for_logical_port('Ethernet0'))) == CMIS_STATE_UNKNOWN
 
         task.port_mapping.logical_port_list = MagicMock()
+        task.port_mapping.logical_to_physical['Ethernet0'] = 1
         port_change_event = PortChangeEvent('PortConfigDone', -1, 0, PortChangeEvent.PORT_SET)
         task.on_port_update_event(port_change_event)
         assert task.isPortConfigDone
diff --git a/sonic-xcvrd/xcvrd/xcvrd.py b/sonic-xcvrd/xcvrd/xcvrd.py
index 89789899f..3fb5293e1 100644
--- a/sonic-xcvrd/xcvrd/xcvrd.py
+++ b/sonic-xcvrd/xcvrd/xcvrd.py
@@ -712,6 +712,10 @@ def on_port_update_event(self, port_change_event):
         if pport is None:
             return
 
+        if not self.port_mapping.is_logical_port(lport):
+            helper_logger.log_info("lport {} does not exist in CONFIG DB. Ignoring port update event".format(lport))
+            return
+
         # Skip if the port/cage type is not a CMIS
         # 'index' can be -1 if STATE_DB|PORT_TABLE
         if lport not in self.port_dict: