This needs to be discussed in different situations, you can check whether these situations can solve your current problem.
Scenario 1: All Default Passwords Are Changed and All Passwords Are Forgotten
If you change all default passwords and forget the console port login password, all STelnet/Telnet login accounts and passwords, and BootROM/BootLoad passwords:
·For a switch that has the PNP button, you can press and hold the PNP button for more than 6 seconds to restore the switch to factory settings and restart the switch. The following figure shows the PNP button.
·If the switch does not have the PNP button, return it to the factory for repair.
Scenario 2: Default Passwords Are Forgotten
For S series switches running V200R020 and later versions, no passwords are configured for default accounts, and users must configure new passwords for logging in to the switches. In this situation, scenario 2 is not involved.
However, for S series switches running versions earlier than V200R020, there is no default STelnet/Telnet login password, but there are default console port login password, default BootROM/BootLoad password, and default web login password. These default passwords may vary according to the switch version.
If you always use the default passwords and have not changed the passwords, you can obtain the default accounts and passwords according to
S Series Switches Default Usernames and Passwords (for
enterprise users or
carrier users). The permission level of this document is C (customer support level). If you need to upgrade the permission level, see the help document on the website.
Scenario 3: The Console Port Login Password Is Forgotten
Three methods are available to recover the console port login password.
·Method 1:
Log in to the device using STelnet or Telnet and change the console port login password.
·Method 2:
Clear the console port login password in the BootROM/BootLoad menu and change the console port login password.
Scenario 4: The STelnet/Telnet Login Password Is Forgotten
·If you forget the login password of an STelnet/Telnet account, you can use another STelnet/Telnet account with administrator rights to log in to the device and reset the password. For details, see
Method 1.
·If you forget the passwords of all STelnet/Telnet accounts but can log in to the device through the console port, see
Method 2.
Method 1: Use an STelnet/Telnet Account with Administrator Rights to Log In to the Device and Reset the Password
1.Log in to the switch using the STelnet/Telnet account with administrator rights.
2.Change the STelnet/Telnet login password. The following example describes how to change the STelnet/Telnet login password of VTY0 to VTY4.
If you forget the STelnet/Telnet login password but remember the console port login password, log in to the switch through the console port and set a new STelnet/Telnet login password.
Scenario 5: The BootROM/BootLoad Password Is Forgotten but the Console Port/STelnet/Telnet Login Is Available
If you can log in to the switch through the console port, STelnet, or Telnet, log in to the switch and restore the default BootROM/BootLoad password. You can obtain the default accounts and passwords according to
S Series Switches Default Usernames and Passwords (for
enterprise users or
carrier users). The permission level of this document is C (customer support level). If you need to upgrade the permission level, see the help document on the website.
Scenario 6: The Web Login Password Is Forgotten but the Console Port/STelnet/Telnet Login Is Available
If you can log in to the switch through the console port, STelnet, or Telnet, log in to the switch and reset the web login password. In the following example, the web login user name is
admin123 and the password is
[email protected].
For more reference resources, please click to enter (ebook) CloudCampus 3.0 Solution:
https://support.huawei.com/enterprise/en/doc/EDOC1100201111
OR you can straight to see this decument
https://support.huawei.com/enterprise/en/doc/EDOC1100200698#section1612361212554
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