diff --git a/test/case/ietf_interfaces/vlan_ping.py b/test/case/ietf_interfaces/vlan_ping.py
index e20bdf41..ecfa04cb 100755
--- a/test/case/ietf_interfaces/vlan_ping.py
+++ b/test/case/ietf_interfaces/vlan_ping.py
@@ -1,6 +1,22 @@
 #!/usr/bin/env python3
 
 import infamy
+import copy
+def test_ping(hport, should_pass):
+      with infamy.IsolatedMacVlan(hport) as ns:
+            pingtest = ns.runsh("""
+            set -ex
+
+            ip link set iface up
+            ip link add dev vlan10 link iface up type vlan id 10
+            ip addr add 10.0.0.1/24 dev vlan10
+
+            ping -c1 -w5 10.0.0.2 || exit 1
+            """)
+
+            if (pingtest.returncode and should_pass) or (not pingtest.returncode and not should_pass):
+                print(pingtest.stdout)
+                test.fail()
 
 with infamy.Test() as test:
     with test.step("Initialize"):
@@ -41,20 +57,14 @@ with infamy.Test() as test:
 
     with test.step("Ping 10.0.0.2 from VLAN 10 on host:data with IP 10.0.0.1"):
         _, hport = env.ltop.xlate("host", "data")
+        test_ping(hport,True)
 
-        with infamy.IsolatedMacVlan(hport) as ns:
-            pingtest = ns.runsh("""
-            set -ex
-
-            ip link set iface up
-            ip link add dev vlan10 link iface up type vlan id 10
-            ip addr add 10.0.0.1/24 dev vlan10
-
-            ping -c1 -w5 10.0.0.2 || exit 1
-            """)
-
-        if pingtest.returncode:
-            print(pingtest.stdout)
-            test.fail()
+    with test.step("Remove VLAN interface, and test again (should not be able to ping)"):
+        running = target.get_config_dict("/ietf-interfaces:interfaces")
+        new = copy.deepcopy(running)
+        new["interfaces"]["interface"] = [d for d in new["interfaces"]["interface"] if not (d["name"] == f"{tport}.10")]
+        target.put_diff_dicts("ietf-interfaces",running,new)
+        _, hport = env.ltop.xlate("host", "data")
+        test_ping(hport,False)
 
     test.succeed()