Huawei AR1200 Series User Manual

6.1 File System Overview
The router uses the file system to manage all files.
6.1.1 File System
The file system manages files and directories on the storage devices. It can create, delete, modify,
or rename a file or directory, or display the contents of a file.
The file system has two functions: managing storage devices and managing the files that are
stored on those devices.
Managing Files Using the File System
After logging in to the router by using the console port, Telnet, or STelnet, you can manage
storage devices, directories, and files.
l Storage devices
Storage devices are hardware devices for storing data.
At present, the router supports the storage devices such as flash memory and USB disk.
l Files
A file is resources for storing and managing data.
l Directories
A directory is a logical container that the system uses to organize files.
6.1.2 Methods of File Management
You can use the FTP, SFTP to manage files.
Managing Files Using FTP
FTP is a standard application protocol based on the TCP/IP protocol suite. It is used to transfer
files between local clients and remote servers. FTP uses two TCP connections to copy a file
from one system to another. The TCP connections are usually established in client-server mode,
one for control (the server port number is 21) and the other for data transmission (the sever port
number is 20).
l Control connection: issues commands from the client to the server and transmits replies
from the server to the client, minimizing the transmission delay.
l Data connection: transmits data between the client and server, maximizing the throughput.
FTP has two file transfer modes:
l Binary mode: is used to transfer program files, such as .app, .bin, and .btm files.
l ASCII mode: is used to transfer text files, such as .txt, .bat, and .cfg files.
The device provides the following FTP functions:
l FTP client: Users can use the terminal emulator or the Telnet program to connect PCs to
the device, and run the ftp command to establish a connection between the device and a
remote FTP server to access and operate files on the server.
Huawei AR1200 Series Enterprise Routers
Configuration Guide - Basic Configuration 6 Managing the File System
Issue 04 (2012-05-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
104

Huawei AR1200 Series Specifications

General

Relative Humidity	5% to 95% (non-condensing)
Series	AR1200
Type	Network Router
Model	AR1200 Series
Power Supply	AC or DC power supply, depending on the specific model.
Operating Temperature	0°C to 45°C
Fixed GE Ports	2
SIC Slots	2
XSIC Slots	0
Memory	512 MB
Storage Temperature	-40°C to +70°C

Summary

Logging In to the System for the First Time

Logging In to the Device Through the Console Port

Logging In to the router Through a Mini USB Port

CLI Overview

Basic Configuration

Configuring the Basic System Environment

Covers essential system configurations like device name and system clock.

Displaying System Status Messages

Configuring User Interfaces

Configuring the Console User Interface

Guides through configuring console interface attributes for local maintenance.

Configuring the VTY User Interface

Details configuration of VTY interfaces for remote access via Telnet or SSH.

Configuring a TTY User Interface

Configuring User Login

Logging in to the Devices Through the Console Port

Describes the process of logging in via the console port for initial setup.

Logging in to Devices Using Telnet

Explains remote login and management using Telnet for multiple routers.

Logging in to Devices Using STelnet

Details secure remote access and login using the STelnet protocol.

Managing the File System

Managing Files Using the File System

Managing Files Using FTP

Covers file transfer and management using FTP, including user configuration.

Managing Files Using SFTP

Explains secure file management and transfer using SFTP over SSH.

Configuring System Startup

Managing Configuration Files

Specifying a File for System Startup

Accessing Another Device

Logging in to Other Devices Using Telnet

Logging in to Another Device Using STelnet

Covers secure login to other devices using STelnet via SSH.

Accessing Files on Another Device Using TFTP

Accessing Files on Another Device Using FTP

Accessing Files on Another Device Using SFTP

Details configuring the router as an SFTP client for secure file access.

Upgrade and Maintenance

Upgrade and Maintenance Overview

Activating a GTL License File

Upgrading System Software

Details procedures for upgrading system software to optimize performance and add features.

Managing Patches

Monitoring CPU and Memory Usage

Restarting the Device

Configuration Examples