Configuration manual
1. System Operation Basics
6
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1
SYSTEM OPERATION BASICS
1.1
Overview
System operation basics mainly describe the basic knowledge of device operations, including
device configuration modes, command modes, and command line interface.
1.2
System Operation Basic Functions
Table 1-1 Configuration list of the system operation basic functions
Configuration Task
Device configuration mode
Device configuration mode
Command operating mode
Command operating mode
Command line interface
Command line interface
1.2.1
Device Configuration Modes
Users can log in to the device for configuration and management in different modes. (For
details of the login modes, refer to the chapter "System login" in the configuration guide.) The
device provides four typical configuration modes:
Logging in to the device locally through the Console port. By default, users can configure
the device directly in this mode.
Logging in to the device by remote dial-up through a Modem. The device cannot be
configured directly in this mode, that is, before configuration, some preparations need to
be made.
Logging in to the device remotely through Telnet. The device cannot be configured directly
in this mode, that is, before configuration, some preparations need to be made.
Logging in to the device remotely through SSH. The device cannot be configured directly in
this mode, that is, before configuration, some preparations need to be made.
1.2.2
Command Operating Modes
The device provides a command processing subsystem for management and execution of
system commands. The subsystem shell provides the following main functions:
Registration of system commands
Editing of system configuration commands by users
Parsing of the commands that have been inputted by users
Execution of system commands
If a user configures the device through shell commands, the system provides multiple
operating modes for the execution of the commands. Each command mode supports specific
