3com 3031 Instruccion De Instalación

C

HAPTER

 2: 3C

OM

 R

OUTER

 I

NTERFACE

■

Allow local and remote configurations via the AUX port

■

Allow local configuration via Console

■

Allow local and remote configurations via Telnet and SSH

■

Allow remote configuration by access the Router from its asynchronous serial 
port via modem dialup.

■

Provide various terminal access approaches, such as dumb terminal and 
Redirect Telnet.

■

Provide user interface view for the management of the particular 
configurations of various terminal users.

■

Provide hierarchical command protection so that the users can only execute the 
commands that commensurate with their levels

■

Provide local, password, and AAA authentication modes to safeguard the 
Router against the intrusion of unauthorized users and hence guarantee the 
system security.

■

On-line help available wherever the user enters “?”

■

Provide the network testing commands, such as tracert and ping, so that users 
can quickly test whether the network is running properly.

■

Provide abundant debugging information to help the users make network fault 
diagnosis.

■

Allow using the 

 command to directly access and manage other routers.

■

Provide FTP services to facilitate the users upload and download files.

■

Provide the function similar to DosKey for executing some history commands.

■

Provide the users with the command line descriptor available with multiple 
intelligent command parsing methods such as fuzzy match and context 
association for the convenience of input.

The system commands are divided into viewing level, monitoring level, 
configuration level, and management level for the purpose of hierarchical 
protection. 

■

The viewing level commands include the commands of network diagnosis tools 
such as 

 and 

, and the commands enabling the current device to 

access an external device, such as Telnet client, SSH client, and RLOGIN. No 
commands at this level can be used to save the configuration files.

■

Monitoring level commands include the commands used for system 
maintenance, service fault diagnosis, such as display, and debugging. No 
commands at this level can be used to save the configuration files.

■

Configuration level commands are the service configuration commands 
including routing commands and the commands at all the network layers. 
These commands are used to provide the direct network services for the users.

■

Management level are the commands essential to the system operations and 
the commands of the system support modules that provide the support to the 
services. These commands encompass the aspects of file system, FTP, TFTP, 
XModem download, configuration file switch, power control, standby board 
control, user management, level setting, as well as the internal parameter