copyright(c) 2004-2006 hangzhou huawei-3com technology co., ltd.
creation date : may 3 2006, 15:40:04
cpu type : bcm4704
cpu clock speed : 200mhz
bus clock speed : 33mhz
memory size : 64mb
mac address : 00e0fc001234
press ctrl-b to enter boot menu... 5
此时，请键入[ctrl+b]，系统提示：
password :
必须在出现“press ctrl-b to enter boot menu...”的5秒钟之内，键入[ctrl+b]，才能进入boot菜单，否则系统将进入程序解压过程；若程序进入解压过程后再希望进入boot菜单，则需要重新启动交换机。
要求输入bootrom密码，输入正确的密码后（交换机缺省设置为没有密码），系统进入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. modify bootrom password
6. enter bootrom upgrade menu
7. skip current configuration file
8. set bootrom password recovery
9. set switch startup mode
0. reboot
enter your choice(0-9):