diff --git a/tests/test_rfc2737.py b/tests/test_rfc2737.py
index 9dbc12f51..afd96b6df 100644
--- a/tests/test_rfc2737.py
+++ b/tests/test_rfc2737.py
@@ -17,8 +17,11 @@
 
 class TestPhysicalTableMIBUpdater(TestCase):
 
-    @mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.PsuCacheUpdater.reinit_data', side_effect=Exception('mocked error'))
-    def test_PhysicalTableMIBUpdater_exception_in_reinit_data_wont_block_reinit_iteration(self, mock_psu_reinit_data):
+    # Given: 5 physical updaters are register into reinit of PhysicalTableMIBUpdater
+    # When: The first updater(XcvrCacheUpdater) raises exception in the reinit
+    # Then: The remaining updaters should execute reinit without any affection, and the un-subscription should be called
+    @mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.XcvrCacheUpdater.reinit_data', side_effect=Exception('mocked error'))
+    def test_PhysicalTableMIBUpdater_exception_in_reinit_data_wont_block_reinit_iteration_first(self, mock_xcvr_reinit_data):
         updater = PhysicalTableMIBUpdater()
 
         with (pytest.raises(Exception) as excinfo,
@@ -26,7 +29,8 @@ def test_PhysicalTableMIBUpdater_exception_in_reinit_data_wont_block_reinit_iter
               mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.PsuCacheUpdater.reinit_data') as mocked_psu_reinit_data,
               mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.FanDrawerCacheUpdater.reinit_data') as mocked_fan_drawer_reinit_data,
               mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.FanCacheUpdater.reinit_data') as mocked_fan_cache_reinit_data,
-              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data') as mocked_thermal_reinit_data):
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data') as mocked_thermal_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.cancel_redis_pubsub') as mocked_cancel_redis_pubsub):
             updater.reinit_data()
             assert str(excinfo.value) == "mocked error"
             mocked_xcvr_reinit_data.assert_called()
@@ -34,3 +38,106 @@ def test_PhysicalTableMIBUpdater_exception_in_reinit_data_wont_block_reinit_iter
             mocked_fan_drawer_reinit_data.assert_called()
             mocked_fan_cache_reinit_data.assert_called()
             mocked_thermal_reinit_data.assert_called()
+            mocked_cancel_redis_pubsub.assert_called()
+
+    # Given: 5 physical updaters are register into reinit of PhysicalTableMIBUpdater
+    # When: The last updater(ThermalCacheUpdater) raises exception in the reinit
+    # Then: The remaining updaters should execute reinit without any affection, and the un-subscription should be called
+    @mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data', side_effect=Exception('mocked error'))
+    def test_PhysicalTableMIBUpdater_exception_in_reinit_data_wont_block_reinit_iteration_last(self, mock_thermal_reinit_data):
+        updater = PhysicalTableMIBUpdater()
+
+        with (pytest.raises(Exception) as excinfo,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.XcvrCacheUpdater.reinit_data') as mocked_xcvr_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.PsuCacheUpdater.reinit_data') as mocked_psu_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.FanDrawerCacheUpdater.reinit_data') as mocked_fan_drawer_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.FanCacheUpdater.reinit_data') as mocked_fan_cache_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data') as mocked_thermal_reinit_data):
+            updater.reinit_data()
+            assert str(excinfo.value) == "mocked error"
+            mocked_xcvr_reinit_data.assert_called()
+            mocked_psu_reinit_data.assert_called()
+            mocked_fan_drawer_reinit_data.assert_called()
+            mocked_fan_cache_reinit_data.assert_called()
+            mocked_thermal_reinit_data.assert_called()
+
+    # Given: 5 physical updaters are register into reinit of PhysicalTableMIBUpdater
+    # When: The first updater(XcvrCacheUpdater) raises Runtime exception in the reinit
+    # Then: The remaining updaters should execute reinit without any affection, and the un-subscription should be called
+    @mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data', side_effect=RuntimeError('mocked runtime error'))
+    def test_PhysicalTableMIBUpdater_runtime_exc_in_reinit_data_wont_block_reinit_iteration_first(self, mock_xcvr_reinit_data):
+        updater = PhysicalTableMIBUpdater()
+
+        with (pytest.raises(RuntimeError) as excinfo,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.XcvrCacheUpdater.reinit_data') as mocked_xcvr_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.PsuCacheUpdater.reinit_data') as mocked_psu_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.FanDrawerCacheUpdater.reinit_data') as mocked_fan_drawer_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.FanCacheUpdater.reinit_data') as mocked_fan_cache_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data') as mocked_thermal_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.cancel_redis_pubsub') as mocked_cancel_redis_pubsub):
+            updater.reinit_data()
+            assert str(excinfo.value) == "mocked runtime error"
+            mocked_xcvr_reinit_data.assert_called()
+            mocked_psu_reinit_data.assert_called()
+            mocked_fan_drawer_reinit_data.assert_called()
+            mocked_fan_cache_reinit_data.assert_called()
+            mocked_thermal_reinit_data.assert_called()
+            mocked_cancel_redis_pubsub.assert_called()
+
+    # Given: 5 physical updaters are register into reinit of PhysicalTableMIBUpdater
+    # When: The last updater(XcvrCacheUpdater) raises Runtime exception in the reinit
+    # Then: The remaining updaters should execute reinit without any affection, and the un-subscription should be called
+    @mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.XcvrCacheUpdater.reinit_data', side_effect=RuntimeError('mocked runtime error'))
+    def test_PhysicalTableMIBUpdater_runtime_exc_in_reinit_data_wont_block_reinit_iteration_last(self, mock_xcvr_reinit_data):
+        updater = PhysicalTableMIBUpdater()
+
+        with (pytest.raises(RuntimeError) as excinfo,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.XcvrCacheUpdater.reinit_data') as mocked_xcvr_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.PsuCacheUpdater.reinit_data') as mocked_psu_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.FanDrawerCacheUpdater.reinit_data') as mocked_fan_drawer_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.FanCacheUpdater.reinit_data') as mocked_fan_cache_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data') as mocked_thermal_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.cancel_redis_pubsub') as mocked_cancel_redis_pubsub):
+            updater.reinit_data()
+            assert str(excinfo.value) == "mocked runtime error"
+            mocked_xcvr_reinit_data.assert_called()
+            mocked_psu_reinit_data.assert_called()
+            mocked_fan_drawer_reinit_data.assert_called()
+            mocked_fan_cache_reinit_data.assert_called()
+            mocked_thermal_reinit_data.assert_called()
+            mocked_cancel_redis_pubsub.assert_called()
+
+    # Given: 5 physical updaters are register into reinit of PhysicalTableMIBUpdater
+    # When: The first(XcvrCacheUpdater) and last updater(ThermalCacheUpdater)
+    #       raises Runtime exception and Exception in the reinit
+    # Then: The remaining updaters should execute reinit without any affection, and the un-subscription should be called
+    #       Both the RuntimeError and Exception should be caught and combined as RuntimeError then been raised
+    @mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.XcvrCacheUpdater.reinit_data', side_effect=RuntimeError('mocked runtime error'))
+    @mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data', side_effect=Exception('mocked error'))
+    def test_PhysicalTableMIBUpdater_multi_exception(self, mock_xcvr_reinit_data, mock_thermal_reinit_data):
+        updater = PhysicalTableMIBUpdater()
+
+        with (pytest.raises(RuntimeError) as excinfo,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.XcvrCacheUpdater.reinit_data') as mocked_xcvr_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.PsuCacheUpdater.reinit_data') as mocked_psu_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.FanDrawerCacheUpdater.reinit_data') as mocked_fan_drawer_reinit_data,
+              mock.patch('sonic_ax_impl.mibs.ietf.rfc2737.FanCacheUpdater.reinit_data') as mocked_fan_cache_reinit_data,
+              mock.patch(
+                  'sonic_ax_impl.mibs.ietf.rfc2737.ThermalCacheUpdater.reinit_data') as mocked_thermal_reinit_data):
+            updater.reinit_data()
+            assert str(excinfo.value) == "mocked runtime error"
+            mocked_xcvr_reinit_data.assert_called()
+            mocked_psu_reinit_data.assert_called()
+            mocked_fan_drawer_reinit_data.assert_called()
+            mocked_fan_cache_reinit_data.assert_called()
+            mocked_thermal_reinit_data.assert_called()
+            mocked_cancel_redis_pubsub.assert_called()
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