3com 3.01.01 Benutzerhandbuch

The Switch 8800 provides a series of configuration commands and command line 
interfaces for configuring and managing the Switch 8800. The command line 
interface has the following features.

■

Local configuration through the console and AUX ports.

■

Local or remote configuration through Telnet.

■

Remote configuration through a dial-up Modem through the AUX port to log 
in to the Switch 8800.

■

Hierarchy command protection to prevent unauthorized users from accessing 
the switch.

■

Access to online Help by entering 

.

■

Network test commands, such as Tracert and Ping, for rapid troubleshooting of 
the network.

■

Detailed debugging information to help with network troubleshooting.

■

Ability to log in and manage other Switch 8800s directly, using the telnet 
command.

■

FTP service for the users to upload and download files.

■

Ability to view previously executed commands.

■

The command line interpreter that searches for a target not fully matching the 
keywords. You can enter the whole keyword or part of it, as long as it is unique 
and not ambiguous.

Configuring a Command Line Interface is described in the following sections:

■

■

The Switch 8800 provides hierarchy protection for the command lines to prevent 
unauthorized users from accessing the switch illegally.

There are four levels of commands: 

■

Visit level — involves commands for network diagnosis tools (such as ping and 
tracert), command of the switch between different language environments of 
user interface (language-mode) and the telnet command. Saving the 
configuration file is not allowed on this level of commands.

■

Monitoring level — includes the display command and the debugging 
command for system maintenance, service fault diagnosis, and so on. Saving 
the configuration file is not allowed on this level of commands.

■

Configuration level — provides service configuration commands, such as the 
routing command and commands on each network layer that are used to 
provide direct network service to the user.

■

Management level — influences the basic operation of the system and the 
system support module which plays a support role for service. Commands at 
this level involve file system commands, FTP commands, TFTP commands, 
XModem downloading commands, user management commands, and level 
setting commands.