3Com Switch 8800 Configuration Guide Chapter 3 Command Line Interface3-1Chapter 3 Command Line Interface3.1 Command Line InterfaceThe Switch 8800 provides a series of configuration commands and command lineinterfaces for configuring and managing the switch. The command line interface hasthe following characteristics:z Local configuration via the Console port and AUX port.z Local or remote configuration via Telnet.z Remote configuration through dialing with modem via the AUX port.z Hierarchy command protection to avoid the unauthorized users accessing switch.z Enter a “?” to get immediate online help.z Provide network testing commands, such as Tracert and Ping, to fast troubleshootthe network.z Provide various detailed debugging information to help with networktroubleshooting.z Log in and manage other switch directly, using the Telnet command.z Provide FTP service for the users to upload and download files.z Provide the function similar to Doskey to execute a history command.z The command line interpreter searches for target not fully matching the keywords.It is ok for you to key in the whole keyword or part of it, as long as it is unique andnot ambiguous.3.2 Command Line ViewThe Switch 8800 provides hierarchy protection for the command lines to avoidunauthorized user accessing illegally.Commands are classified into four levels, namely visit level, monitoring level,configuration level and management level. They are introduced as follows:z Visit level: Commands of this level involve command of network diagnosis tool(such as ping and tracert), command of switch between different languageenvironments of user interface (language-mode) and telnet command etc. Theoperation of saving configuration file is not allowed on this level of commands.z Monitoring level: Commands of this level, including the display command and thedebugging command, are used to system maintenance, service fault diagnosis,etc. The operation of saving configuration file is not allowed on this level ofcommands.z Configuration level: Service configuration commands, including routing commandand commands on each network layer, are used to provide direct network serviceto the user.
