Configuration File Management; Configuration File Overview; Types Of Configuration; Format And Content Of A Configuration File - 3Com S7906E Configuration Manual

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Configuration File Management

The device provides the configuration file management function with a user-friendly command line
interface (CLI) for you to manage the configuration files conveniently.
This section covers these topics:

Configuration File Overview

Saving the Current Configuration
Setting Configuration Rollback
Specifying a Startup Configuration File for the Next System Startup
Backing Up the Startup Configuration File
Deleting the Startup Configuration File for the Next Startup
Restoring the Startup Configuration File
Displaying and Maintaining Device Configuration
Configuration File Overview
A configuration file saves the device configurations in command lines in text format. You can view
configuration information conveniently through configuration files.

Types of Configuration

The configuration of a device falls into two types:
Startup configuration, a configuration file used for initialization when the device boots. If this file
does not exist, the system boots using null configuration, that is, using the default parameters.
Current configuration, which refers to the currently running configuration of the system. The current
configuration may include the startup configuration if the startup configuration is not modified
during system operation, and it also includes the new configuration added during the system
operation. The current configuration is stored in the temporary storage medium of the device, and
will be removed when the device reboots if not saved.

Format and Content of a Configuration File

A configuration file is saved as a text file. It is saved following these rules:
The content of a configuration file is command lines, and only non-default configuration settings are
saved.
Commands in a configuration file are listed in sections by views, usually in the order of system view,
interface view, routing protocol view, and user interface view. Sections are separated with one or
multiple blank lines or comment lines that start with a pound sign #.
Ends with a return.

Coexistence of Multiple Configuration Files

Multiple configuration files can be stored on a storage medium of a device. You can save the
configuration used in different environments as different configuration files. In this case, when the
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