Operation Manual – CLIH3C S7500 Series Ethernet Switches Chapter 1 CLI Overview1-1Chapter 1 CLI OverviewGo to these sections for information you are interested in:z Introduction to the CLIz Command Level/Command Viewz CLI Features1.1 Introduction to the CLIH3C series Ethernet switches provide command line interfaces (CLI) and commandsfor you to configure and manage the Ethernet switches. The CLI features the following:z Commands are grouped by levels. This prevents unauthorized users fromoperating the switch with relevant commands.z Users can gain online help at any time by entering the question mark ?.z Commonly used diagnosing utilities (such as Tracert and Ping) are available.z Debugging information of various kinds is available.z The command history is available. You can recall and execute a history commandeasily.z You can execute a command by only entering part of the command in the CLI, aslong as the keywords you input uniquely identify the corresponding ones.1.2 Command Level/Command ViewTo prevent unauthorized accesses, commands are grouped by command levels.Commands fall into four levels: visit, monitor, system, and manage:z Visit level: Commands at this level are mainly used to diagnose network andchange the language mode of user interface, and cannot be saved in configurationfiles. For example, the ping, tracert, and language-mode commands are at thislevel.z Monitor level: Commands at this level are mainly used to maintain the system anddiagnose service problems, and cannot be saved to configuration files. Forexample, the display and debugging commands are at this level.z System level: Commands at this level are mainly used to configure services.Commands concerning routing and network layers are at this level. You can utilizenetwork services by using these commands.z Manage level: Commands at this level are associated with the basic operation ofthe system, and the system supporting modules. These commands providesupports to services. Commands concerning file system, FTP/TFTP/XModemdownloading, user management, and level setting are at this level.
