3Com 10014298 manual Command Line, Interface

28CHAPTER 1: SYSTEM ACCESS

Command Line	The Switch 7750 provides a series of configuration commands and command line
Interface	interfaces for configuring and managing the Switch 7750. The command line
	interface has the following features.
	■ Local configuration through the console port.
	■ Local or remote configuration through Telnet.
	■ Remote configuration through a dial-up Modem to log in to the Switch 7750.
	■ 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 7750s 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:

■Command Line View

■Features and Functions of the Command Line

Command Line View The Switch 7750 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 command, 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.