方法一：如果忘记了SSH登录密码，用户可以通过Console口或Telnet登录设备后设置新的SSH登录密码。
# 以登录VTY0的验证方式为AAA授权验证，用户名为admin123，密码为Huawei@123为例，配置如下。
<Huawei> system-view
[Huawei] user-interface vty 0
[Huawei-ui-vty0] protocol inbound all
[Huawei-ui-vty0] authentication-mode aaa
[Huawei-ui-vty0] quit
[Huawei] aaa
[Huawei-aaa] local-user admin123 password irreversible-cipher Huawei@123
[Huawei-aaa] local-user admin123 service-type telnet ssh http
[Huawei-aaa] local-user admin123 privilege level 15
[Huawei-aaa] return
<Huawei> save