diff --git a/ansible/config_sonic_basedon_testbed.yml b/ansible/config_sonic_basedon_testbed.yml
index bcfb2ba242f..9687c60fbc0 100644
--- a/ansible/config_sonic_basedon_testbed.yml
+++ b/ansible/config_sonic_basedon_testbed.yml
@@ -819,6 +819,11 @@
 
         when: "'dualtor-mixed' in topo or 'dualtor-aa' in topo"
 
+      - name: execute "TSB" on T2 DUTs
+        become: True
+        shell: "TSB"
+        when: "'t2' in topo"
+
       - name: execute cli "config save -y" to save current minigraph as startup-config
         become: true
         shell: config save -y
diff --git a/tests/test_pretest.py b/tests/test_pretest.py
index 65aa73e2a41..073b5ca393c 100644
--- a/tests/test_pretest.py
+++ b/tests/test_pretest.py
@@ -400,6 +400,7 @@ def test_disable_startup_tsa_tsb_service(duthosts, localhost):
                 duthost.shell("sudo mv {} {}".format(startup_tsa_tsb_file_path, backup_tsa_tsb_file_path))
                 output = duthost.shell("TSB", module_ignore_errors=True)
                 pytest_assert(not output['rc'], "Failed TSB")
+                duthost.shell("sudo config save -y")
         else:
             logger.info("{} file does not exist in the specified path on dut {}".
                         format(startup_tsa_tsb_file_path, duthost.hostname))