配置思路：
1. 交换机配置IP
2.生成密钥
3.配置VTY
4.创建ssh用户，配置password认证
5.开启stelnet功能
配置如下：
< HUAWEI >
< HUAWEI >sys
Entersystem view, return user view with Ctrl+Z.
[HUAWEI] intterface Vlanif 1 //配置交换机管理IP
[HUAWEI-Vlanif1] ip addr 192.168.56.2 24
[HUAWEI-Vlanif1] quit
[HUAWEI] undo telnet server enable //关闭telnet服务
Warning:The operation will stop the Telnet server. Continue? [Y/N]:y
[HUAWEI] quit
[HUAWEI] rsa local-key-pair create //生成密钥
Thekey name will be: HUAWEI_Host
Therange of public key size is (512 ~ 2048).
NOTES:If the key modulus is greater than 512,
it will take a few minutes.
Inputthe bits in the modulus[default = 512]:2048
Generatingkeys...
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....++++++++
[HUAWEI] user-interface vty 0 4 //配置VTY
[HUAWEI-ui-vty0-4] authentication-mode aaa
[HUAWEI-ui-vty0-4] protocol inbound ssh
[HUAWEI-ui-vty0-4] quit
[HUAWEI] ssh user huawei //添加ssh用户
Info:Succeeded in adding a new SSH user.
[HUAWEI] ssh user huawei authentication-type password
[HUAWEI] aaa //AAA中添加用户
[HUAWEI-aaa] local-user huawei password cipher huawei
Info:Add a new user.
[HUAWEI-aaa] local-user huawei service-type ssh
[HUAWEI-aaa] quit
[HUAWEI] ssh user huawei service-type stelnet
[HUAWEI] stelnet server enable //启用stelnet服务
Info:Succeeded in starting the Stelnet server.
[HUAWEI] quit
Thecurrent configuration will be written to the device.
Areyou sure to continue?[Y/N] y
Nowsaving the current configuration to the slot 0.
Savethe configuration successfully.