diff --git a/lcbp3.code-workspace b/lcbp3.code-workspace
index a45ff08..927aaed 100644
--- a/lcbp3.code-workspace
+++ b/lcbp3.code-workspace
@@ -22,7 +22,7 @@
     // EDITOR SETTINGS
     // ========================================
 
-    "editor.fontSize": 16,
+    "editor.fontSize": 19,
     "editor.tabSize": 2,
     "editor.lineHeight": 1.6,
     "editor.rulers": [80, 120],
@@ -677,6 +677,7 @@
     "scm.alwaysShowActions": false,
     "workbench.settings.alwaysShowAdvancedSettings": true,
     "npm.packageManager": "pnpm",
+    "editor.mouseWheelZoom": true,
   },
   // ========================================
   // LAUNCH CONFIGURATIONS
diff --git a/specs/04-Infrastructure-OPS/switch-configuration-guide.md b/specs/04-Infrastructure-OPS/switch-configuration-guide.md
index 6059db7..472b5c1 100644
--- a/specs/04-Infrastructure-OPS/switch-configuration-guide.md
+++ b/specs/04-Infrastructure-OPS/switch-configuration-guide.md
@@ -178,17 +178,28 @@ General:
 **Configuration:**
 
 ```bash
-Loopback Control: Spanning Tree
-
-STP:
-- Edge Port: ENABLE
-- BPDU Guard: ENABLE 🔥 (optional แต่แนะนำ)
-- Loop Protect: DISABLE
-
 General:
-- Flow Control: ON
-- EEE: OFF
-```
+- 802.1X Control: Auto
+- Port Isolation: DISABLE
+- Flow Control: ENABLE
+- EEE: DISABLE
+- Multicast Fast Leave: IGMP (IPv4)->DISABLE, MLD (IPv6)->DISABLE
+- Loopback Control: Spanning Tree
+  - Edge Port: ENABLE
+  - Spanning Tree Config:
+    - Loop Protect: DISABLE
+    - Root Protect: DISABLE
+    - TC Guard: DISABLE
+    - BPDU Protect: ENABLE 🔥 (ใช้คู่กับพอร์ตประเภทขอบเครือข่าย (Edge Port) ที่เชื่อมต่อกับอุปกรณ์ปลายทางเท่านั้น เช่น เครื่อง PC, เครื่องพิมพ์ หรือ Access Point))
+    - BPDU Filter: DISABLE
+    - BPDU Forward: DISABLE
+LLDP-MED: ENABLE
+Bandwidth Control: Storming Control
+  - Rate Mode: Ratio
+    - Broadcast: 1%
+    - Unknown Unicast: 2%
+    - Multicast: 2%
+    - Action: Drop
 
 📌 **หมายเหตุ:** AP ไม่ควรส่ง BPDU → เปิด guard ได้
 
diff --git a/specs/skill.md.jpg b/specs/skill.md.jpg
new file mode 100644
index 0000000..91aeecb
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