diff --git a/neutron/api/rpc/agentnotifiers/dhcp_rpc_agent_api.py b/neutron/api/rpc/agentnotifiers/dhcp_rpc_agent_api.py
index 29b61b2c9ba..b8d01bb1dfe 100644
--- a/neutron/api/rpc/agentnotifiers/dhcp_rpc_agent_api.py
+++ b/neutron/api/rpc/agentnotifiers/dhcp_rpc_agent_api.py
@@ -298,26 +298,23 @@ class DhcpAgentNotifyAPI(object):
         payload = kwargs[resource]
         data = {resource: payload}
         if resource == resources.PORT:
-            if self._only_status_changed(kwargs.get('original_port'),
-                                         kwargs.get('port')):
+            if not self._notification_is_needed(kwargs.get('original_port'),
+                                                kwargs.get('port')):
                 # don't waste time updating the DHCP agent for status updates
                 return
         self.notify(context, data, method_name)
 
-    def _only_status_changed(self, orig, new):
-        # a status change will manifest as a bumped revision number, a new
-        # updated_at timestamp, and a new status. If that's all that changed,
-        # return True, else False
+    def _notification_is_needed(self, orig, new):
+        # notification to the DHCP agent should be send only if DHCP related
+        # attributes of the port were changed, like: fixed_ips, mac_address,
+        # extra_dhcp_opts, dns_name, dns_assignment or dns_domain.
+        # Otherwise there is no need to waste DHCP agent's time for doing
+        # updates.
         if not orig or not new:
-            return False
-        if set(orig.keys()) != set(new.keys()):
-            return False
-        for k in orig.keys():
-            if k in ('status', 'updated_at', 'revision_number'):
-                continue
-            if orig[k] != new[k]:
-                return False
-        return True
+            return True
+        return any(orig.get(k) != new.get(k) for k in (
+            'fixed_ips', 'mac_address', 'extra_dhcp_opts',
+            'dns_name', 'dns_assignment', 'dns_domain'))
 
     def _send_dhcp_notification(self, resource, event, trigger, payload=None):
         action = payload.action.split('_')[0]
diff --git a/neutron/tests/unit/api/rpc/agentnotifiers/test_dhcp_rpc_agent_api.py b/neutron/tests/unit/api/rpc/agentnotifiers/test_dhcp_rpc_agent_api.py
index 0b7650a7c7e..1a956433d26 100644
--- a/neutron/tests/unit/api/rpc/agentnotifiers/test_dhcp_rpc_agent_api.py
+++ b/neutron/tests/unit/api/rpc/agentnotifiers/test_dhcp_rpc_agent_api.py
@@ -281,17 +281,41 @@ class TestDhcpAgentNotifyAPI(base.BaseTestCase):
                             context=mock.Mock(), **kwargs)
             self.assertEqual([res], self.notifier._unsubscribed_resources)
 
-    def test__only_status_changed(self):
+    def test__notification_is_needed(self):
         p1 = {'id': 1, 'status': 'DOWN', 'updated_at': '10:00:00',
-              'revision_number': 1}
+              'revision_number': 1,
+              'fixed_ips': [{'ip_address': '10.0.0.10', 'subnet_id': 'aaa'}],
+              'mac_address': 'aa:bb:cc:dd:ee:ff'}
         p2 = dict(p1)
         p2['status'] = 'ACTIVE'
         p2['revision_number'] = 2
         p2['updated_at'] = '10:00:01'
-        self.assertTrue(self.notifier._only_status_changed(p1, p2))
+        self.assertFalse(self.notifier._notification_is_needed(p1, p2))
+
         p2['name'] = 'test'
-        self.assertFalse(self.notifier._only_status_changed(p1, p2))
-        p1['name'] = 'test'
-        self.assertTrue(self.notifier._only_status_changed(p1, p2))
-        p1['name'] = 'test1'
-        self.assertFalse(self.notifier._only_status_changed(p1, p2))
+        self.assertFalse(self.notifier._notification_is_needed(p1, p2))
+        p2.pop('name')
+
+        p2['mac_address'] = '11:22:33:44:55:66'
+        self.assertTrue(self.notifier._notification_is_needed(p1, p2))
+        p2['mac_address'] = p1['mac_address']
+
+        p2['fixed_ips'] = [{'ip_address': '10.0.0.11', 'subnet_id': 'aaa'}]
+        self.assertTrue(self.notifier._notification_is_needed(p1, p2))
+        p2['fixed_ips'] = p1['fixed_ips']
+
+        p2['extra_dhcp_opts'] = 'some-test-opt'
+        self.assertTrue(self.notifier._notification_is_needed(p1, p2))
+        p2.pop('extra_dhcp_opts')
+
+        p2['dns_name'] = 'test-dns-name'
+        self.assertTrue(self.notifier._notification_is_needed(p1, p2))
+        p2.pop('dns_name')
+
+        p2['dns_assignment'] = 'test-dns-assignment'
+        self.assertTrue(self.notifier._notification_is_needed(p1, p2))
+        p2.pop('dns_assignment')
+
+        p2['dns_domain'] = 'test-dns-domain'
+        self.assertTrue(self.notifier._notification_is_needed(p1, p2))
+        p2.pop('dns_domain')