因客户有一台H3C的WA4320X无线AP是有胖、瘦切换的功能，但在出厂时默认为瘦模式，无线AP上并没有两种模式的切换开关，打电话给厂家说是刷新固件才能支持为胖模式。于是我使用串口线连接AP上的console口进行调试。

    1、查看一下无线AP当前的配置，发现无IP地址：

[WA4320X]dis cur

#

 version 5.20, Release 1508P11

#

 sysname WA4320X

#

telnet server enable

#

 password-recovery enable

#

vlan 1

#

interface NULL0

#

interface Vlan-interface1

#

interface GigabitEthernet1/0/1

#

interface WLAN-Radio1/0/1

#

interface WLAN-Radio1/0/2

   2、手动添加IP地址为192.168.0.50，为传输文件做准备

[WA4320X]int vlan 1

[WA4320X-Vlan-interface1]ip address 192.168.0.50 24

[WA4320X-Vlan-interface1]qu

   3、在电脑上打开3CD服务器：

   4、设备好本机的IP地址和无线AP同一网段，使用网线连接AP的GE1。

   5、删除AP上的瘦版本

delete /unreserved wa4300_fit.bin

The contents cannot be restored!!! Delete flash:/wa4300_fit.bin?[Y/N]:y

Deleting a file permanently will take a long time. Please wait...

%Apr 26 12:03:25:284 2000 WA4320X WMSH/6/WMESH_EXIT_ZERO_CFG_STATE:  The device has exited zero configuration state.

%Delete file flash:/wa4300_fit.bin...Done.

   6、把要刷新的固件文件改名为wa4300_fat.bin，并放到3CDaemon目录下

   7、把胖版本传到AP上，并用它dir查看版本已经在AP上：

tftp 192.168.0.51 get wa4300_fat.bin

File will be transferred in binary mode

  Downloading file from remote TFTP server, please wait...\

%Apr 26 12:06:30:290 2000 WA4320X WMSH/6/WMESH_ENTER_ZERO_CFG_STATE:  The device has entered zero configuration state./

TFTP: 11062272 bytes received in 35 second(s)

  File downloaded successfully.

dir /all

Directory of flash:/

   0     -rw-  11062272  Apr 26 2000 12:07:03   wa4300_fat.bin

130688 KB total (118730 KB free)

    8、设置下次启动文件，：

boot-loader file flash:/wa4300_fat.bin

%Apr 26 12:07:55:424 2000 WA4320X WMSH/6/WMESH_EXIT_ZERO_CFG_STATE:  The device has exited zero configuration state.

  Verifying boot file ......

%Apr 26 12:08:00:868 2000 WA4320X WMSH/6/WMESH_ENTER_ZERO_CFG_STATE:  The device has entered zero configuration state.

  This command will set the boot file. Continue? [Y/N]:

Before pressing ENTER you must choose 'YES' or 'NO'[Y/N]:

Before pressing ENTER you must choose 'YES' or 'NO'[Y/N]:

Before pressing ENTER you must choose 'YES' or 'NO'[Y/N]:y

  The specified file will be used as the boot file at the next reboot on slot 1!

      9、使用reboot重启设备，web页面登陆http://192.168.0.50,可以登陆表示胖模式刷新成功。