diff --git a/neutron/agent/linux/iptables_manager.py b/neutron/agent/linux/iptables_manager.py
index cfe80805261..9bd5d6e0aff 100644
--- a/neutron/agent/linux/iptables_manager.py
+++ b/neutron/agent/linux/iptables_manager.py
@@ -775,7 +775,15 @@ class IptablesManager(object):
                 args.append('-Z')
             if self.namespace:
                 args = ['ip', 'netns', 'exec', self.namespace] + args
-            current_table = self.execute(args, run_as_root=True)
+
+            # Execute iptables command in the linux host.
+            # When routers migrate from a host,an exception might happen here,
+            # and we do not care about it. Therefore, we do not need to log
+            # this error in production environments. Only when debug mode is
+            # enabled is that we need to log the error. This is used to avoid
+            # generating alarms that will be ignored by  operators.
+            current_table = self.execute(
+                args, run_as_root=True, log_fail_as_error=cfg.CONF.debug)
             current_lines = current_table.split('\n')
 
             for line in current_lines[2:]:
diff --git a/neutron/services/metering/drivers/iptables/iptables_driver.py b/neutron/services/metering/drivers/iptables/iptables_driver.py
index 96e93f97f7d..fdc20244985 100644
--- a/neutron/services/metering/drivers/iptables/iptables_driver.py
+++ b/neutron/services/metering/drivers/iptables/iptables_driver.py
@@ -470,9 +470,12 @@ class IptablesMeteringDriver(abstract_driver.MeteringAbstractDriver):
 
             chain_acc = rm.iptables_manager.get_traffic_counters(
                 chain, wrap=False, zero=True)
-        except RuntimeError:
-            LOG.exception('Failed to get traffic counters, '
-                          'router: %s', router)
+        except RuntimeError as e:
+            LOG.warning('Failed to get traffic counters for router [%s] due '
+                        'to [%s]. This error message can happen when routers '
+                        'are migrated; therefore, most of the times they can '
+                        'be ignored.', router, e)
+
             routers_to_reconfigure.add(router['id'])
             return {}
         return chain_acc
diff --git a/neutron/tests/unit/agent/linux/test_iptables_manager.py b/neutron/tests/unit/agent/linux/test_iptables_manager.py
index 0dfd964b32a..9479ca241b5 100644
--- a/neutron/tests/unit/agent/linux/test_iptables_manager.py
+++ b/neutron/tests/unit/agent/linux/test_iptables_manager.py
@@ -1020,34 +1020,36 @@ class IptablesManagerStateFulTestCase(IptablesManagerBaseTestCase):
         expected_calls_and_values = [
             (mock.call(['iptables', '-t', 'filter', '-L', 'OUTPUT',
                         '-n', '-v', '-x', '-w', '10'],
-                       run_as_root=True),
+                       run_as_root=True, log_fail_as_error=False),
              TRAFFIC_COUNTERS_DUMP),
             (mock.call(['iptables', '-t', 'raw', '-L', 'OUTPUT', '-n',
                         '-v', '-x', '-w', '10'],
-                       run_as_root=True),
+                       run_as_root=True, log_fail_as_error=False),
              ''),
             (mock.call(['iptables', '-t', 'mangle', '-L', 'OUTPUT', '-n',
                         '-v', '-x', '-w', '10'],
-                       run_as_root=True),
+                       run_as_root=True, log_fail_as_error=False),
              ''),
             (mock.call(['iptables', '-t', 'nat', '-L', 'OUTPUT', '-n',
                         '-v', '-x', '-w', '10'],
-                       run_as_root=True),
+                       run_as_root=True, log_fail_as_error=False),
              ''),
         ]
         if self.use_ipv6:
             expected_calls_and_values.append(
                 (mock.call(['ip6tables', '-t', 'raw', '-L', 'OUTPUT',
-                           '-n', '-v', '-x', '-w', '10'], run_as_root=True),
+                           '-n', '-v', '-x', '-w', '10'], run_as_root=True,
+                           log_fail_as_error=False),
                  ''))
             expected_calls_and_values.append(
                 (mock.call(['ip6tables', '-t', 'filter', '-L', 'OUTPUT',
                            '-n', '-v', '-x', '-w', '10'],
-                           run_as_root=True),
+                           run_as_root=True, log_fail_as_error=False),
                  TRAFFIC_COUNTERS_DUMP))
             expected_calls_and_values.append(
                 (mock.call(['ip6tables', '-t', 'mangle', '-L', 'OUTPUT',
-                           '-n', '-v', '-x', '-w', '10'], run_as_root=True),
+                           '-n', '-v', '-x', '-w', '10'], run_as_root=True,
+                           log_fail_as_error=False),
                  ''))
             exp_packets *= 2
             exp_bytes *= 2
@@ -1068,36 +1070,36 @@ class IptablesManagerStateFulTestCase(IptablesManagerBaseTestCase):
         expected_calls_and_values = [
             (mock.call(['iptables', '-t', 'filter', '-L', 'OUTPUT',
                         '-n', '-v', '-x', '-w', '10', '-Z'],
-                       run_as_root=True),
+                       run_as_root=True, log_fail_as_error=False),
              TRAFFIC_COUNTERS_DUMP),
             (mock.call(['iptables', '-t', 'raw', '-L', 'OUTPUT', '-n',
                         '-v', '-x', '-w', '10', '-Z'],
-                       run_as_root=True),
+                       run_as_root=True, log_fail_as_error=False),
              ''),
             (mock.call(['iptables', '-t', 'mangle', '-L', 'OUTPUT', '-n',
                         '-v', '-x', '-w', '10', '-Z'],
-                       run_as_root=True),
+                       run_as_root=True, log_fail_as_error=False),
              ''),
             (mock.call(['iptables', '-t', 'nat', '-L', 'OUTPUT', '-n',
                         '-v', '-x', '-w', '10', '-Z'],
-                       run_as_root=True),
+                       run_as_root=True, log_fail_as_error=False),
              '')
         ]
         if self.use_ipv6:
             expected_calls_and_values.append(
                 (mock.call(['ip6tables', '-t', 'raw', '-L', 'OUTPUT',
                             '-n', '-v', '-x', '-w', '10', '-Z'],
-                           run_as_root=True),
+                           run_as_root=True, log_fail_as_error=False),
                  ''))
             expected_calls_and_values.append(
                 (mock.call(['ip6tables', '-t', 'filter', '-L', 'OUTPUT',
                             '-n', '-v', '-x', '-w', '10', '-Z'],
-                           run_as_root=True),
+                           run_as_root=True, log_fail_as_error=False),
                  TRAFFIC_COUNTERS_DUMP))
             expected_calls_and_values.append(
                 (mock.call(['ip6tables', '-t', 'mangle', '-L', 'OUTPUT',
                             '-n', '-v', '-x', '-w', '10', '-Z'],
-                           run_as_root=True),
+                           run_as_root=True, log_fail_as_error=False),
                  ''))
             exp_packets *= 2
             exp_bytes *= 2