为了防止交换机配置丢失，需要定期对更新过的配置下载下来进行备份，在交换机上开启ftp功能步骤如下：
[huawei]local-user adminftp password cipher 123456 [huawei]local-user adminftp privilege level 3 [huawei]local-user adminftp ftp-directory flash: [huawei]local-user adminftp service-type ftp [huawei]ftp server enable
开启以后在本地电脑cmd下用ftp连接使用方法和连接查看下载如下，下载vrpcfg.zip即可：
C:\Users\adm>ftp 192.168.1.1 连接到 192.168.1.1。 220 FTP service ready. 用户(192.168.1.1:(none)): adminftp 331 Password required for adminftp. 密码: 230 User logged in. ftp> dir 200 Port command okay. 150 Opening ASCII mode data connection for directory list. -rwxrwxrwx 1 noone nogroup 14083796 Oct 01 2008 s5700ei-v200r003c00spc300 .cc -rwxrwxrwx 1 noone nogroup 685821 Apr 22 12:34 web.7z -rwxrwxrwx 1 noone nogroup 36 Apr 22 12:36 $_patchstate_reboot drwxrwxrwx 1 noone nogroup 0 Apr 22 12:36 user -rwxrwxrwx 1 noone nogroup 1267 Jun 06 15:56 private-data.txt -rwxrwxrwx 1 noone nogroup 73873 Oct 01 2008 s5700ei-v200r003sph006.pa t drwxrwxrwx 1 noone nogroup 0 Apr 22 12:37 dhcp drwxrwxrwx 1 noone nogroup 0 Jun 03 11:14 syslogfile drwxrwxrwx 1 noone nogroup 0 Jun 03 11:14 resetinfo -rwxrwxrwx 1 noone nogroup 2424 Dec 14 19:31 vrpcfg.zip 226 Transfer complete. ftp: 收到 702 字节，用时 0.01秒 46.80千字节/秒。 ftp> get vrpcfg.zip 200 Port command okay. 150 Opening ASCII mode data connection for directory list. 226 Transfer complete. ftp: 收到 2424 字节，用时 0.02秒 151.50千字节/秒。 ftp> quit 221 Server closing.
配置下载好以后最好停用ftp服务：
[huawei]undo ftp server