diff --git a/tests/arp/test_unknown_mac.py b/tests/arp/test_unknown_mac.py
index d519bc47d8a..4b8a6323d3d 100644
--- a/tests/arp/test_unknown_mac.py
+++ b/tests/arp/test_unknown_mac.py
@@ -41,6 +41,25 @@ def wrapper(self, *args):
     return wrapper
 
 
+@pytest.fixture(autouse=True, scope="module")
+def dut_disable_arp_update(rand_selected_dut):
+    """
+    Fixture to disable arp update before the test and re-enable it afterwards
+
+    Args:
+        rand_selected_dut(AnsibleHost) : dut instance
+    """
+    duthost = rand_selected_dut
+    if duthost.shell("docker exec -t swss supervisorctl stop arp_update")['stdout_lines'][0] \
+            == 'arp_update: ERROR (not running)':
+        logger.warning("arp_update not running, already disabled")
+
+    yield
+
+    assert duthost.shell("docker exec -t swss supervisorctl start arp_update")['stdout_lines'][0] \
+        == 'arp_update: started'
+
+
 @pytest.fixture(autouse=True, scope="module")
 def unknownMacSetup(duthosts, rand_one_dut_hostname, tbinfo):
     """