diff --git a/neutron/plugins/hyperv/agent/hyperv_neutron_agent.py b/neutron/plugins/hyperv/agent/hyperv_neutron_agent.py
index 40c347a8ac..f6ea12c460 100644
--- a/neutron/plugins/hyperv/agent/hyperv_neutron_agent.py
+++ b/neutron/plugins/hyperv/agent/hyperv_neutron_agent.py
@@ -281,6 +281,10 @@ class HyperVNeutronAgent(object):
                     device_details['physical_network'],
                     device_details['segmentation_id'],
                     device_details['admin_state_up'])
+                self.plugin_rpc.update_device_up(self.context,
+                                                 device,
+                                                 self.agent_id,
+                                                 cfg.CONF.host)
         return resync
 
     def _treat_devices_removed(self, devices):
diff --git a/neutron/tests/unit/hyperv/test_hyperv_neutron_agent.py b/neutron/tests/unit/hyperv/test_hyperv_neutron_agent.py
index f9e17d41bb..7969834dfc 100644
--- a/neutron/tests/unit/hyperv/test_hyperv_neutron_agent.py
+++ b/neutron/tests/unit/hyperv/test_hyperv_neutron_agent.py
@@ -90,8 +90,20 @@ class TestHyperVNeutronAgent(base.BaseTestCase):
     def test_treat_devices_added_updates_known_port(self):
         details = mock.MagicMock()
         details.__contains__.side_effect = lambda x: True
-        self.assertTrue(self.mock_treat_devices_added(details,
-                                                      '_treat_vif_port'))
+        with mock.patch.object(self.agent.plugin_rpc,
+                               "update_device_up") as func:
+            self.assertTrue(self.mock_treat_devices_added(details,
+                                                          '_treat_vif_port'))
+            self.assertTrue(func.called)
+
+    def test_treat_devices_added_missing_port_id(self):
+        details = mock.MagicMock()
+        details.__contains__.side_effect = lambda x: False
+        with mock.patch.object(self.agent.plugin_rpc,
+                               "update_device_up") as func:
+            self.assertFalse(self.mock_treat_devices_added(details,
+                                                           '_treat_vif_port'))
+            self.assertFalse(func.called)
 
     def test_treat_devices_removed_returns_true_for_missing_device(self):
         attrs = {'update_device_down.side_effect': Exception()}