diff --git a/files/ansible-playbooks/sot-updater.yml b/files/ansible-playbooks/sot-updater.yml
index b105daf..a8d6abe 100644
--- a/files/ansible-playbooks/sot-updater.yml
+++ b/files/ansible-playbooks/sot-updater.yml
@@ -1054,6 +1054,103 @@
           payload_encoding: "string"
       changed_when: false
 
+    # ----------------------- Dev2 fw_printenv size → indoor_bootvar -----------------------
+    - name: Dev2 | Read fw_printenv size (tunnel)
+      when:
+        - tunnel_ok | default(false)
+        - dev2_passfile_used != 'NONE'
+      delegate_to: localhost
+      shell: |
+        PORT="{{ _local_port }}"
+        sshpass -f "{{ dev2_passfile_used }}" ssh {{ ssh_opts_common }} \
+          -o ConnectTimeout={{ ssh_timeout }} \
+          -p "$PORT" "{{ dev2_ssh_user }}@127.0.0.1" \
+          "fw_printenv 2>/dev/null | wc -l"
+      args:
+        executable: /bin/bash
+      register: dev2_bootenv_wc_tunnel
+      changed_when: false
+      failed_when: false
+      ignore_errors: true
+
+    - name: Dev2 | Read fw_printenv size (LLDP)
+      when:
+        - tunnel_ok | default(false)
+        - dev2_passfile_used == 'NONE'
+        - lldp_dev2_ip | length > 0
+        - dev2_passfile_used_lldp is defined
+        - dev2_passfile_used_lldp != 'NONE'
+      delegate_to: localhost
+      shell: |
+        sshpass -f "{{ dev2_passfile_used_lldp }}" ssh \
+          -o StrictHostKeyChecking=no -o PubkeyAuthentication=no \
+          -o ConnectTimeout=15 \
+          "{{ dev2_ssh_user }}@{{ lldp_dev2_ip }}" \
+          "fw_printenv 2>/dev/null | wc -l"
+      args:
+        executable: /bin/bash
+      register: dev2_bootenv_wc_lldp
+      changed_when: false
+      failed_when: false
+      ignore_errors: true
+
+    - name: Dev2 | Select fw_printenv size output
+      delegate_to: localhost
+      set_fact:
+        indoor_bootvar_raw: >-
+          {{
+            (dev2_bootenv_wc_tunnel.stdout | default('') | trim)
+            if (
+              (dev2_bootenv_wc_tunnel is defined) and
+              ((dev2_bootenv_wc_tunnel.rc | default(1)) == 0) and
+              ((dev2_bootenv_wc_tunnel.stdout | default('') | trim | length) > 0)
+            )
+            else (
+              (dev2_bootenv_wc_lldp.stdout | default('') | trim)
+              if (
+                (dev2_bootenv_wc_lldp is defined) and
+                ((dev2_bootenv_wc_lldp.rc | default(1)) == 0) and
+                ((dev2_bootenv_wc_lldp.stdout | default('') | trim | length) > 0)
+              )
+              else ''
+            )
+          }}
+
+    - name: Dev2 | Normalize indoor_bootvar value
+      delegate_to: localhost
+      set_fact:
+        indoor_bootvar_value: >-
+          {{
+            'unavailable'
+            if (indoor_bootvar_raw | default('') | trim) in ['', '0']
+            else (indoor_bootvar_raw | default('') | trim)
+          }}
+
+    - name: Publish Dev2 indoor_bootvar custom field
+      delegate_to: localhost
+      uri:
+        url: "http://{{ rmq_host }}:{{ rmq_port }}/api/exchanges/{{ rmq_vhost|urlencode }}/{{ rmq_exchange|urlencode }}/publish"
+        method: POST
+        user: "{{ rmq_user }}"
+        password: "{{ rmq_pass }}"
+        force_basic_auth: true
+        status_code: 200
+        headers: { content-type: "application/json" }
+        body_format: json
+        body:
+          properties: { content_type: "application/json" }
+          routing_key: "{{ control_queue }}"
+          payload: "{{ {
+            'inscope_device': (ansible_hostname|default(inventory_hostname)),
+            'task_name': 'custom_field_set',
+            'task_add1': 'indoor_bootvar',
+            'task_result': indoor_bootvar_value
+          } | to_json }}"
+          payload_encoding: "string"
+      changed_when: false
+
+
+
   post_tasks:
     - name: "✅ Cleanup start"
       debug: