diff --git a/neutron/agent/dhcp/agent.py b/neutron/agent/dhcp/agent.py
index ca3cb26cd76..b2f14df2d7a 100644
--- a/neutron/agent/dhcp/agent.py
+++ b/neutron/agent/dhcp/agent.py
@@ -132,7 +132,7 @@ class DhcpAgent(manager.Manager):
             if (isinstance(e, oslo_messaging.RemoteError)
                 and e.exc_type == 'NetworkNotFound'
                 or isinstance(e, exceptions.NetworkNotFound)):
-                LOG.warning(_LW("Network %s has been deleted."), network.id)
+                LOG.debug("Network %s has been deleted.", network.id)
             else:
                 LOG.exception(_LE('Unable to %(action)s dhcp for %(net_id)s.'),
                               {'net_id': network.id, 'action': action})
@@ -205,7 +205,7 @@ class DhcpAgent(manager.Manager):
         try:
             network = self.plugin_rpc.get_network_info(network_id)
             if not network:
-                LOG.warn(_LW('Network %s has been deleted.'), network_id)
+                LOG.debug('Network %s has been deleted.', network_id)
             return network
         except Exception as e:
             self.schedule_resync(e, network_id)
diff --git a/neutron/tests/unit/agent/dhcp/test_agent.py b/neutron/tests/unit/agent/dhcp/test_agent.py
index 220f6d2dbe6..92a790dff87 100644
--- a/neutron/tests/unit/agent/dhcp/test_agent.py
+++ b/neutron/tests/unit/agent/dhcp/test_agent.py
@@ -312,18 +312,16 @@ class TestDhcpAgent(base.BaseTestCase):
         network = mock.Mock()
         network.id = '1'
         self.driver.return_value.foo.side_effect = exc or Exception
-        with mock.patch.object(dhcp_agent.LOG, trace_level) as log:
-            dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
-            with mock.patch.object(dhcp,
-                                   'schedule_resync') as schedule_resync:
-                self.assertIsNone(dhcp.call_driver('foo', network))
-                self.driver.assert_called_once_with(cfg.CONF,
-                                                    mock.ANY,
-                                                    mock.ANY,
-                                                    mock.ANY,
-                                                    mock.ANY)
-                self.assertEqual(log.call_count, 1)
-                self.assertEqual(expected_sync, schedule_resync.called)
+        dhcp = dhcp_agent.DhcpAgent(HOSTNAME)
+        with mock.patch.object(dhcp,
+                               'schedule_resync') as schedule_resync:
+            self.assertIsNone(dhcp.call_driver('foo', network))
+            self.driver.assert_called_once_with(cfg.CONF,
+                                                mock.ANY,
+                                                mock.ANY,
+                                                mock.ANY,
+                                                mock.ANY)
+            self.assertEqual(expected_sync, schedule_resync.called)
 
     def test_call_driver_ip_address_generation_failure(self):
         error = oslo_messaging.RemoteError(
@@ -704,13 +702,11 @@ class TestDhcpAgentEventHandler(base.BaseTestCase):
 
     def test_enable_dhcp_helper_network_none(self):
         self.plugin.get_network_info.return_value = None
-        with mock.patch.object(dhcp_agent.LOG, 'warn') as log:
-            self.dhcp.enable_dhcp_helper('fake_id')
-            self.plugin.assert_has_calls(
-                [mock.call.get_network_info('fake_id')])
-            self.assertFalse(self.call_driver.called)
-            self.assertTrue(log.called)
-            self.assertFalse(self.dhcp.schedule_resync.called)
+        self.dhcp.enable_dhcp_helper('fake_id')
+        self.plugin.assert_has_calls(
+            [mock.call.get_network_info('fake_id')])
+        self.assertFalse(self.call_driver.called)
+        self.assertFalse(self.dhcp.schedule_resync.called)
 
     def test_enable_dhcp_helper_exception_during_rpc(self):
         self.plugin.get_network_info.side_effect = Exception