diff --git a/neutron/plugins/bigswitch/plugin.py b/neutron/plugins/bigswitch/plugin.py
index d7b0b678ef..52b32de485 100644
--- a/neutron/plugins/bigswitch/plugin.py
+++ b/neutron/plugins/bigswitch/plugin.py
@@ -787,11 +787,14 @@ class NeutronRestProxyV2(NeutronRestProxyV2Base,
                 self.servers.rest_update_port(net_tenant_id,
                                               new_port["network_id"],
                                               mapped_port)
-            agent_update_required = self.update_security_group_on_port(
+            need_port_update_notify = self.update_security_group_on_port(
                 context, port_id, port, orig_port, new_port)
-        agent_update_required |= self.is_security_group_member_updated(
+        need_port_update_notify |= self.is_security_group_member_updated(
             context, orig_port, new_port)
 
+        if need_port_update_notify:
+            self.notifier.port_update(context, new_port)
+
         # return new_port
         return new_port
 
diff --git a/neutron/tests/unit/bigswitch/test_restproxy_plugin.py b/neutron/tests/unit/bigswitch/test_restproxy_plugin.py
index 87391cf945..f96cc656ca 100644
--- a/neutron/tests/unit/bigswitch/test_restproxy_plugin.py
+++ b/neutron/tests/unit/bigswitch/test_restproxy_plugin.py
@@ -294,6 +294,20 @@ class TestBigSwitchProxyNetworksV2(test_plugin.TestNetworksV2,
                              self._get_networks(n['network']['tenant_id']
                                                 )[0]['id'])
 
+    def test_notify_on_security_group_change(self):
+        plugin = manager.NeutronManager.get_plugin()
+        with self.port() as p:
+            with contextlib.nested(
+                mock.patch.object(plugin, 'notifier'),
+                mock.patch.object(plugin, 'is_security_group_member_updated',
+                                  return_value=True)
+            ) as (n_mock, s_mock):
+                # any port update should trigger a notification due to s_mock
+                data = {'port': {'name': 'aNewName'}}
+                self.new_update_request(
+                    'ports', data, p['port']['id']).get_response(self.api)
+                self.assertTrue(n_mock.port_update.called)
+
 
 class TestBigSwitchProxySubnetsV2(test_plugin.TestSubnetsV2,
                                   BigSwitchProxyPluginV2TestCase):