交换机

可以根据自己的需求选择模式

[H3C]system-working-mode { auto | pex | switch }

可以进入到bootrom下进行模式的切换看下：

# 设备当前处于PEX模式，通过Boot Rom修改设备的工作模式为缺省状态。

(1)      重启设备，进入设备的BOOT菜单。

   BOOT MENU                                                                   

1. Download application file to flash                                          

2. Select application file to boot                                             

3. Display all files in flash                                                  

4. Delete file from flash                                                      

5. Restore to factory default configuration                                    

6. Enter BootRom upgrade menu                                                  

7. Skip current system configuration                                           

8. Reserved                                                                    

9. Set switch startup mode                                                     

0. Reboot                                                                      

Ctrl+F: Format File System                                                     

Ctrl+P: Skip Super Password                                                     

Ctrl+Y: Change Work Mode                                                       

Ctrl+R: Download application to SDRAM and Run                                  

Ctrl+Z: Access EXTEND-ASSISTANT MENU                                            

Enter your choice(0-9): 

(2)      键入<Ctrl+Y>，设备会提示用户是否确认切换当前工作模式，键入“Y”。

PEX mode is enabled. Are you sure you want to disable PEX mode? [Y/N]YDone! 

(3)      返回BOOT菜单后，输入“0”重启设备，在重启后设备将恢复到缺省的工作模式，即自动模式。