R21xx-HP FlexFabric 11900 Fundamentals Configuration Guide

81
Managing configuration files
You can use the CLI or the Boot menu to manage configuration files. This chapter only explains how to
manage configuration files from the CLI.
Overview
A configuration file saves a set of commands for configuring software features on the device. You can
save any configuration to a configuration file so they can survive a reboot. You can also back up
configuration files to a host for future use.
Configuration types
The configuration loaded at startup is called "startup configuration" and the configuration that is running
on the device is called "running configuration."
Startup configuration
The device uses startup configuration to configure software features during startup.
The following are sources of startup configuration:
• Initial settings—Initial values or states for parameters. If the device starts up with empty
configuration, all parameters are set to their initial settings at startup.
• Default configuration file—Contains factory defaults, which are product-specific default settings
that are different from initial settings. The file is included in the .bin software image file and is not
accessible to users. If you do not configure the device to start up with empty configuration or a
startup configuration file, the device loads the default configuration file to configure features at
startup. If a parameter is not included in the file, the device loads its initial settings.
• Startup configuration file—Configuration file you specify in the Boot menu or CLI for startup. The file
is called the "next-startup configuration file." After the file is loaded at startup, it is also called the
"current startup configuration file." For high availability, you can specify two next-startup
configuration files, one main and one backup (see "Specifying a next-startup configuration file")
.
No commands are available to display the initial settings. For more information about these settings, see
the "Default" section in the command references.
To display the product-specific settings in the default configuration file, use the display
default-configuration command.
To display the current startup configuration file and the next-startup configuration files, use the display
startup command.
To display the contents of the main next-startup configuration file, use the display saved-configuration
command. This command does not display settings that have not been saved to the main next-startup
configuration file.
Running configuration
Running configuration includes startup settings that have not been changed and new settings you made.
It is stored in a volatile storage medium and takes effect while the device is operating.
New settings take effect immediately, but they must be saved to a configuration file to survive a reboot.