diff --git a/tests/platform_tests/api/test_chassis.py b/tests/platform_tests/api/test_chassis.py
index 5207474db0..0f4e13479c 100644
--- a/tests/platform_tests/api/test_chassis.py
+++ b/tests/platform_tests/api/test_chassis.py
@@ -4,6 +4,8 @@
 import pytest
 import yaml
 
+from natsort import natsorted
+
 from tests.common.helpers.assertions import pytest_assert
 from tests.common.helpers.platform_api import chassis, module
 from tests.common.fixtures.conn_graph_facts import conn_graph_facts
@@ -61,7 +63,15 @@
 @pytest.fixture(scope="module")
 def physical_port_indices(duthosts, enum_rand_one_per_hwsku_hostname):
     duthost = duthosts[enum_rand_one_per_hwsku_hostname]
-    return get_physical_port_indices(duthost)
+    port_map = get_physical_port_indices(duthost)
+    result = []
+    visited_intfs = set()
+    for intf in natsorted(port_map.keys()):
+        if intf in visited_intfs:
+            continue
+        visited_intfs.add(intf)
+        result.append(port_map[intf])
+    return result
 
 @pytest.fixture(scope="class")
 def gather_facts(request, duthosts):
@@ -378,7 +388,6 @@ def test_sfps(self, duthosts, enum_rand_one_per_hwsku_hostname, localhost, platf
             num_sfps = int(chassis.get_num_sfps(platform_api_conn))
         except:
             pytest.fail("num_sfps is not an integer")
-        list_sfps = []
         list_sfps = physical_port_indices
         logging.info("Physical port indices = {}".format(list_sfps))
         if duthost.facts.get("chassis"):