Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

A banner is a note that is displayed when you log in to the system, depending on the privilege level and the command mode into which the you log in. You can specify different banners to be displayed as the message-of-the-day (MOTD), as the opening quote in EXEC mode, or as the beginning message in EXEC Privilege mode. Setting up a banner enables you to display any important information or group-level notification that needs to be communicated to all the users of the system.

A login banner message is displayed only in EXEC Privilege mode after entering the enable command followed by the password. These banners are not displayed to users in EXEC mode. When you connect to a system, the message-of-the-day (MOTD) banner is displayed first, followed by the login banner and prompts. After you log in to the system with valid authentication credentials, the EXEC banner is shown.

You can use the MOTD banner to alert users of critical upcoming events so that they can plan and schedule their accessibility to the device. You can modify the banner messages depending on the requirements or conditions.