diff --git a/plugins/pdr_deterministic_plugin/tests/exclude_list_class_tests.py b/plugins/pdr_deterministic_plugin/tests/exclude_list_class_tests.py
new file mode 100644
index 000000000..a6a8b51e8
--- /dev/null
+++ b/plugins/pdr_deterministic_plugin/tests/exclude_list_class_tests.py
@@ -0,0 +1,91 @@
+#
+# Copyright © 2013-2024 NVIDIA CORPORATION & AFFILIATES. ALL RIGHTS RESERVED.
+#
+# This software product is a proprietary product of Nvidia Corporation and its affiliates
+# (the "Company") and all right, title, and interest in and to the software
+# product, including all associated intellectual property rights, are and
+# shall remain exclusively with the Company.
+#
+# This software product is governed by the End User License Agreement
+# provided with the software product.
+#
+
+import os
+import tempfile
+import time
+import pytest
+from constants import PDRConstants as Constants
+from exclude_list import ExcludeList, ExcludeListItem
+from isolation_algo import create_logger
+
+def get_logger():
+    """
+    Return logger associated with log file in temporary directory
+    """
+    log_name = os.path.basename(Constants.LOG_FILE)
+    log_path = os.path.join(tempfile.gettempdir(), log_name)
+    return create_logger(log_path)
+
+pytest.mark.run(order=0)
+def test_exclude_list_class_methods():
+    """
+    Test exclude list class methods by direct calls
+    """
+    excluded_ports = [
+        ExcludeListItem("0123456789aaabbb_1", 0),  # Add forever
+        ExcludeListItem("9876543210cccddd_2", 30), # Add for 30 seconds
+        ExcludeListItem("3456789012eeefff_3", 0)   # Add forever
+    ]
+
+    # Create exclude list and ensure it's empty
+    exclude_list = ExcludeList(get_logger())
+    items = exclude_list.items()
+    assert not items
+
+    # Add ports to excluded list
+    for port in excluded_ports:
+        exclude_list.add(port.port_name, port.ttl_seconds)
+
+    # Test excluded list size
+    items = exclude_list.items()
+    assert items and len(items) == len(excluded_ports)
+
+    # Test 'contains' method
+    for port in excluded_ports:
+        assert exclude_list.contains(port.port_name)
+
+    # Test excluded list content
+    for (index, item) in enumerate(items):
+        assert item.port_name == excluded_ports[index].port_name
+        assert item.ttl_seconds == excluded_ports[index].ttl_seconds
+
+    # Test auto-remove of second port after TTL is expired
+    auto_remove_port = excluded_ports[1]
+    time.sleep(auto_remove_port.ttl_seconds + 1)
+    assert not exclude_list.contains(auto_remove_port.port_name)
+
+    # Test excluded list size
+    items = exclude_list.items()
+    assert items and len(items) == (len(excluded_ports) - 1)
+
+    # Test excluded list content
+    for port in excluded_ports:
+        if port.port_name != auto_remove_port.port_name:
+            assert exclude_list.contains(port.port_name)
+
+    # Test forced remove of third port
+    remove_port = excluded_ports[2]
+    exclude_list.remove(port.port_name)
+    assert not exclude_list.contains(remove_port.port_name)
+
+    # Test excluded list size
+    items = exclude_list.items()
+    assert items and len(items) == (len(excluded_ports) - 2)
+
+    # Test excluded list content
+    for port in excluded_ports:
+        if port.port_name != remove_port.port_name and port.port_name != auto_remove_port.port_name:
+            assert exclude_list.contains(port.port_name)
+
+if __name__ == '__main__':
+    test_exclude_list_class_methods()
diff --git a/plugins/pdr_deterministic_plugin/tests/exclude_list_rest_api_tests.py b/plugins/pdr_deterministic_plugin/tests/exclude_list_rest_api_tests.py
new file mode 100644
index 000000000..dab087bad
--- /dev/null
+++ b/plugins/pdr_deterministic_plugin/tests/exclude_list_rest_api_tests.py
@@ -0,0 +1,119 @@
+#
+# Copyright © 2013-2024 NVIDIA CORPORATION & AFFILIATES. ALL RIGHTS RESERVED.
+#
+# This software product is a proprietary product of Nvidia Corporation and its affiliates
+# (the "Company") and all right, title, and interest in and to the software
+# product, including all associated intellectual property rights, are and
+# shall remain exclusively with the Company.
+#
+# This software product is governed by the End User License Agreement
+# provided with the software product.
+#
+
+import http
+import json
+import os
+import tempfile
+import time
+import pytest
+import requests
+from constants import PDRConstants as Constants
+from exclude_list import ExcludeList, ExcludeListItem
+from isolation_algo import create_logger
+
+# Temp 4
+
+def get_logger():
+    """
+    Return logger associated with log file in temporary directory
+    """
+    log_name = os.path.basename(Constants.LOG_FILE)
+    log_path = os.path.join(tempfile.gettempdir(), log_name)
+    return create_logger(log_path)
+
+pytest.mark.run(order=0)
+def test_exclude_list_class_methods():
+    """
+    Test exclude list class methods by direct calls
+    """
+    excluded_ports = [
+        ExcludeListItem("0123456789aaabbb_1", 0),  # Add forever
+        ExcludeListItem("9876543210cccddd_2", 30), # Add for 30 seconds
+        ExcludeListItem("3456789012eeefff_3", 0)   # Add forever
+    ]
+
+    # Create exclude list and ensure it's empty
+    exclude_list = ExcludeList(get_logger())
+    items = exclude_list.items()
+    assert not items
+
+    # Add ports to excluded list
+    for port in excluded_ports:
+        exclude_list.add(port.port_name, port.ttl_seconds)
+
+    # Test excluded list size
+    items = exclude_list.items()
+    assert items and len(items) == len(excluded_ports)
+
+    # Test 'contains' method
+    for port in excluded_ports:
+        assert exclude_list.contains(port.port_name)
+
+    # Test excluded list content
+    for (index, item) in enumerate(items):
+        assert item.port_name == excluded_ports[index].port_name
+        assert item.ttl_seconds == excluded_ports[index].ttl_seconds
+
+    # Test auto-remove of second port after TTL is expired
+    auto_remove_port = excluded_ports[1]
+    time.sleep(auto_remove_port.ttl_seconds + 1)
+    assert not exclude_list.contains(auto_remove_port.port_name)
+
+    # Test excluded list size
+    items = exclude_list.items()
+    assert items and len(items) == (len(excluded_ports) - 1)
+
+    # Test excluded list content
+    for port in excluded_ports:
+        if port.port_name != auto_remove_port.port_name:
+            assert exclude_list.contains(port.port_name)
+
+    # Test forced remove of third port
+    remove_port = excluded_ports[2]
+    exclude_list.remove(port.port_name)
+    assert not exclude_list.contains(remove_port.port_name)
+
+    # Test excluded list size
+    items = exclude_list.items()
+    assert items and len(items) == (len(excluded_ports) - 2)
+
+    # Test excluded list content
+    for port in excluded_ports:
+        if port.port_name != remove_port.port_name and port.port_name != auto_remove_port.port_name:
+            assert exclude_list.contains(port.port_name)
+
+#pytest.mark.run(order=1)
+def no_test_exclude_list_rest_api():
+    """
+    Test exclude list inside plugin via REST API
+    """
+    url = "http://127.0.0.1:8977/excluded"
+
+    excluded_ports = [
+        ExcludeListItem("0123456789aaabbb_1", 0),  # Add forever
+        ExcludeListItem("9876543210cccddd_2", 30), # Add for 30 seconds
+        ExcludeListItem("3456789012eeefff_3", 0)   # Add forever
+    ]
+
+    # Prepare data for PUT HTTP request
+    data = []
+    for port in excluded_ports:
+        data.append([port.port_name, port.ttl_seconds])
+
+    # Add ports to excluded list
+    response = requests.put(url, data=json.dumps(data), headers={'Content-Type': 'application/json'}, timeout=5, auth = None, verify = False)
+    assert response.status_code == http.client.OK
+
+if __name__ == '__main__':
+    test_exclude_list_class_methods()
+    #no_test_exclude_list_rest_api()