Huawei AR1200 Series User Manual

Specifying a Filtering Mode in a Command
CAUTION
The Huawei AR1200 Series uses a regular expression to implement the pipe character filtering
function. A display command supports the pipe character only when there is excessive output
information.
When filtering conditions are set to query output, the first line of the command output starts with
information containing the regular expression.
Some commands can carry the parameter | count to display the number of matching entries. The
parameter | count can be used together with other parameters.
For commands that support regular expressions, three filtering methods are as follows:
l | begin regular-expression: displays information that begins with the line that matches
regular expression.
l | exclude regular-expression: displays information that excludes the lines that match
regular expression.
l | include regular-expression: displays information that includes the lines that match regular
expression.
NOTE
The value of regular-expression is a string of 1 to 255 characters.regular-expression cannot contain
underlines (_).
2.3.4 Previously-Used Commands
The CLI provides a function similar to DosKey that automatically saves any command used on
the device. If you need to run a command that has been previously executed, you can use this
function to call up the command.
By default, the system saves 10 previously-used commands for each user. You can run the
history-command max-size size-value command in the user view to set the number of
previously-used commands saved by the system. A maximum of 256 previously-used commands
can be saved.
NOTE
Setting the number of saved previously-used commands to a reasonably low value is recommended. If a
large number of previously-used commands are saved, locating a command can be time-consuming and
affect efficiency.
The operations are shown in Table 2-6
Huawei AR1200 Series Enterprise Routers
Configuration Guide - Basic Configuration 2 CLI Overview
Issue 04 (2012-05-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
24

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