diff --git a/neutron/tests/base.py b/neutron/tests/base.py
index 377085d1e..69b1b84bb 100644
--- a/neutron/tests/base.py
+++ b/neutron/tests/base.py
@@ -96,6 +96,15 @@ class BaseTestCase(testtools.TestCase):
                 nuke_handlers=capture_logs,
             ))
 
+        # suppress all but errors here
+        self.useFixture(
+            fixtures.FakeLogger(
+                name='neutron.api.extensions',
+                format=LOG_FORMAT,
+                level=logging.ERROR,
+                nuke_handlers=capture_logs,
+            ))
+
         test_timeout = int(os.environ.get('OS_TEST_TIMEOUT', 0))
         if test_timeout == -1:
             test_timeout = 0