diff --git a/ansible/group_vars/all/ceos.yml b/ansible/group_vars/all/ceos.yml
index efa305a5709..a595f23e1dc 100644
--- a/ansible/group_vars/all/ceos.yml
+++ b/ansible/group_vars/all/ceos.yml
@@ -1,4 +1,4 @@
-ceos_image_filename: cEOS64-lab-4.23.2F.tar.xz
-ceos_image_orig: ceosimage:4.23.2F
-ceos_image: ceosimage:4.23.2F-1
+ceos_image_filename: cEOS64-lab-4.25.5.1M.tar
+ceos_image_orig: ceosimage:4.25.5.1M
+ceos_image: ceosimage:4.25.5.1M-1
 skip_ceos_image_downloading: false
diff --git a/ansible/roles/test/files/ptftests/arista.py b/ansible/roles/test/files/ptftests/arista.py
index 211625ea7f5..939c491ecd9 100644
--- a/ansible/roles/test/files/ptftests/arista.py
+++ b/ansible/roles/test/files/ptftests/arista.py
@@ -91,8 +91,15 @@ def do_cmd(self, cmd, prompt = None):
             self.shell.send(cmd + '\n')
 
         input_buffer = ''
+        loop_times = 0
         while re.search(prompt, input_buffer) is None:
             input_buffer += self.shell.recv(16384)
+            loop_times += 1
+            # cEOS will not return a arista_prompt if you send lots of 'exit' to close the ssh connect(vEOS do will),
+            # then an endless loop emerges,
+            # so if input_buffer is merely an 'exit', we can break the loop immediately
+            if loop_times > 10 and input_buffer.replace('\n', '').replace('\r', '').strip().lower() == 'exit':
+                break
 
         return input_buffer