The switch ships with default passwords assigned for access to Command Line Interface (CLI) through a console or management session. If you have read/write/all access authority, and you are using SNMPv3, you can change passwords that are in an encrypted format. If you are using Enterprise Device Manager (EDM), you can also specify the number of available Telnet sessions.
Important
The default passwords are documented and well known. Change the default passwords and community strings immediately after you first log on.
After a factory default or if your switch has no primary or backup configuration files, a password change is required to access the CLI. The system provides three attempts to change the password, if unsuccessful you are taken back to the login prompt but are not locked out. You cannot reuse a password and your password cannot be empty. A password change is required irrespective of security mode, console, SSH, or Telnet access.
If you enable enhanced secure mode with the boot config flags enhancedsecure-mode command, you enable different access levels, along with stronger password complexity, length, and minimum change intervals. For more information on system access fundamentals and configuration, see System Access.