更改启动模式
系统缺省将按照快速模式启动，如果用户想更改为正常模式启动，在2秒的等待时间内键入[ctrl＋b]，进入boot菜单，显示如下：
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):
键入9，可以更改启动模式，提示信息如下
the current mode is fast startup mode!
are you sure to change it to full startup mode? yes or no(y/n)
键入y，提示信息如下：
setting startup mode...done!
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):
键入0，系统将重新按照正常模式启动，显示信息如下：
starting......
h3c s5100-48p-ei bootrom, version 115
copyright(c) 2004-2006 hangzhou huawei-3com technology co., ltd.
creation date : apr 10 2006, 12:51:33
cpu type : bcm5836
cpu clock speed : 200mhz
bus clock speed : 33mhz
memory size : 64mb
mac address : 00e0fc005111
press ctrl-b to enter boot menu... 5
正常模式启动时，此处停留时间为5秒。在5秒之内，键入[ctrl＋b]，可以进入boot菜单。如果在5秒之内不进行任何操作或键入[crrl+b]之外的键，系统进入自动启动，显示信息如下：
auto-booting...
decompress image..........................................................
..........................................................................
..........................................................................
..........................................................................
..........................................................................
..........................................................................
...ok!
starting at 0x80100000...
initialize ls51ltsg........................ok!
sdram fast selftest........................ok!
flash fast selftest........................ok!
cpld selftest..............................ok!
switch chip selftest.......................ok!
port 1 has no module
port 2 has no module
port 3 has no module
port 4 has no module
phy selftest...............................ok!
please check port leds...............finished!
user interface aux0 is available.
press enter to get started.
提示信息“press enter to get started”出现后，标志着交换机自动启动的完成。
回车后，终端屏幕显示如下：
[h3c]
用户可以开始对交换机进行配置。
h3c 系列交换机提供了丰富的命令视图，有关配置命令及命令行接口的详细介绍，请查阅《h3c s5100系列以太网交换机操作手册》和请查阅《h3c s5100系列以太网交换机命令手册》。