diff --git a/tests/common/plugins/conditional_mark/tests_mark_conditions.yaml b/tests/common/plugins/conditional_mark/tests_mark_conditions.yaml
index d9fdebcaa28..de520be3e8f 100644
--- a/tests/common/plugins/conditional_mark/tests_mark_conditions.yaml
+++ b/tests/common/plugins/conditional_mark/tests_mark_conditions.yaml
@@ -395,6 +395,12 @@ dualtor/test_standby_tor_upstream_mux_toggle.py:
     conditions:
       - "(topo_type not in ['t0']) or ('dualtor' in topo_name)"
 
+dualtor/test_tunnel_memory_leak.py::test_tunnel_memory_leak:
+  skip:
+    reason: "Testcase ignored on dualtor-64 topology due to Github issue: https://github.com/sonic-net/sonic-mgmt/issues/11403"
+    conditions:
+      - "https://github.com/sonic-net/sonic-mgmt/issues/11403 and 'dualtor-64' in topo_name"
+
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