diff --git a/.idea/AI-powered-switches.iml b/.idea/AI-powered-switches.iml
index 7801d9e..61dc63f 100644
--- a/.idea/AI-powered-switches.iml
+++ b/.idea/AI-powered-switches.iml
@@ -9,7 +9,7 @@
     <content url="file://$MODULE_DIR$">
       <excludeFolder url="file://$MODULE_DIR$/.venv" />
     </content>
-    <orderEntry type="jdk" jdkName="Python 3.13" jdkType="Python SDK" />
+    <orderEntry type="jdk" jdkName="Python 3.11 (AI-powered-switches)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="Python 3.12 interpreter library" level="application" />
   </component>
diff --git a/src/backend/.envExample b/src/backend/.envExample
deleted file mode 100644
index 9439543..0000000
--- a/src/backend/.envExample
+++ /dev/null
@@ -1,11 +0,0 @@
-# 硅基流动API配置
-SILICONFLOW_API_KEY=sk-114514
-SILICONFLOW_API_URL=https://api.siliconflow.ai/v1
-
-# 交换机登录凭证
-SWITCH_USERNAME=admin
-SWITCH_PASSWORD=your_switch_password
-SWITCH_TIMEOUT=10
-
-# 应用设置
-DEBUG=True
diff --git a/src/backend/app/services/ai_services.py b/src/backend/app/services/ai_services.py
index e4d0712..f023e6f 100644
--- a/src/backend/app/services/ai_services.py
+++ b/src/backend/app/services/ai_services.py
@@ -26,7 +26,7 @@ class AIService:
         """
 
         data = {
-            "model": "text-davinci-003",
+            "model": "deepseek-ai/DeepSeek-V3",
             "prompt": prompt,
             "max_tokens": 1000,
             "temperature": 0.3
@@ -35,7 +35,7 @@ class AIService:
         try:
             async with httpx.AsyncClient() as client:
                 response = await client.post(
-                    f"{self.api_url}/completions",
+                    f"{self.api_url}/chat/completions",
                     headers=self.headers,
                     json=data,
                     timeout=30
diff --git a/src/backend/config.py b/src/backend/config.py
index e79d088..2e2901c 100644
--- a/src/backend/config.py
+++ b/src/backend/config.py
@@ -1,26 +1,30 @@
 from pydantic import BaseModel
 from pydantic_settings import BaseSettings
 from dotenv import load_dotenv
+import os
 
 load_dotenv()
 
-import os
+
 class Settings(BaseSettings):
     APP_NAME: str = "AI Network Configurator"
     DEBUG: bool = True
     API_PREFIX: str = "/api"
 
     # 硅基流动API配置
-    SILICONFLOW_API_KEY: str = os.getenv("SILICON_API_KEY", "")
-    SILICONFLOW_API_URL: str = os.getenv("SILICONFLOW_API_URL", "https://api.siliconflow.ai/v1")
+    SILICONFLOW_API_KEY: str = os.getenv("SILICONFLOW_API_KEY", "sk-mhzuedasunrgdrxfkcxmxgaypgjnxgodvvmrzzdbqrwtkqej")
+    SILICONFLOW_API_URL: str = os.getenv("SILICONFLOW_API_URL", "https://api.siliconflow.cn/v1")
 
     # 交换机配置
-    SWITCH_USERNAME: str = os.getenv("SWITCH_USERNAME", "admin")
-    SWITCH_PASSWORD: str = os.getenv("SWITCH_PASSWORD", "admin")
     SWITCH_TIMEOUT: int = os.getenv("SWITCH_TIMEOUT", 10)
 
+    # eNSP配置
+    ENSP_DEFAULT_IP: str = "172.17.99.201"
+    ENSP_DEFAULT_PORT: int = 2000
+
     class Config:
         env_file = ".env"
+        extra = "ignore"
 
 
 settings = Settings()
\ No newline at end of file
diff --git a/src/backend/requirements.txt b/src/backend/requirements.txt
index 05abb1a..fc26dff 100644
--- a/src/backend/requirements.txt
+++ b/src/backend/requirements.txt
@@ -13,6 +13,7 @@ telnetlib3==2.0.3
 httpx==0.27.0
 python-nmap==0.7.1
 
+
 # 异步文件操作 -i https://pypi.tuna.tsinghua.edu.cn/simple
 aiofiles==23.2.1