3Com Switch 8800 Advanced Software V5 Configuration Guide

Configuration File Management 1033
<Sysname> cd ..
Configuration File
Management
This section covers these topics:
■ “Configuration File Management Overview” on page 1033
■ “Saving the Current Configuration” on page 1033
■ “Synchronizing Configuration Files Saved on the main fabric to standby fabric”
on page 1034
■ “Erasing the Startup Configuration File” on page 1034
■ “Specifying a Configuration File for Next Startup” on page 1035
■ “Backing up/Restoring the Configuration File for Next Startup” on page 1035
Configuration File
Management Overview
Types of configuration
The configuration of a device falls into two types:
■ Saved configuration, a configuration file used for initialization. If this file does
not exist, the default parameters are used.
■ Current configuration, which refers to the user’s configuration during the
operation of a device. This configuration is stored in dynamic random-access
memory (DRAM). It is removed when the device is rebooting.
Format of configuration file
Configuration files are saved as text files for ease of reading. They:
■ Save configuration in the form of commands.
■ Save only non-default configuration settings.
■ List commands in sections by view in this view order: system, interface, routing
protocol, and so on. Sections are separated with one or multiple blank lines or
comment lines that start with a pound sign (#).
■ End with a return.
The operating interface provided by the configuration file management function is
user-friendly. With it, you can easily manage your configuration files.
Saving the Current
Configuration
You can modify the configuration on your device at the command line interface
(CLI). To use the modified configuration for your subsequent startups, you must
save it (using the save command) as a configuration file.
Modes in saving the configuration:
■ Fast saving mode. This is the mode when you use the save command without
the safely keyword. The mode saves the file quicker but is likely to lose the
configuration file if the device reboots or the power fails during the process.
■ Safe mode. This is the mode when you use the save command with the safely
keyword. The mode saves the file slower but can retain the configuration file in
the flash even if the device reboots or the power fails during the process.
Follow the step below to save the current configuration: