Operation Manual – CLIH3C S3100 Series Ethernet Switches Chapter 1 CLI Configuration1-1Chapter 1 CLI Configuration1.1 Introduction to the CLIA command line interface (CLI) is a user interface to interact with a switch. Through theCLI on a switch, a user can enter commands to configure the switch and check outputinformation to verify the configuration. Each S3100 series Ethernet switch provides aneasy-to-use CLI and a set of configuration commands for the convenience of the userto configure and manage the switch.The CLI on S3100 series Ethernet switches provides the following features, and so hasgood manageability and operability.z Hierarchical command protection: After users of different levels log in, they canonly use commands at their own, or lower, levels. This prevents users from usingunauthorized commands to configure switches.z Online help: Users can gain online help at any time by entering a question mark(?).z Debugging: Abundant and detailed debugging information is provided to helpusers diagnose and locate network problems.z Command history function: This enables users to check the commands that theyhave lately executed and re-execute the commands.z Partial matching of commands: The system will use partially matching method tosearch for commands. This allows users to execute a command by enteringpartially-spelled command keywords as long as the keywords entered can beuniquely identified by the system.1.2 Command Hierarchy1.2.1 Command Level and User Privilege LevelI. Command levelThe S3100 series Ethernet switches use hierarchical command protection forcommand lines, so as to inhibit users at lower levels from using higher-level commandsto configure the switches.Based on user privilege, commands are classified into four levels, which default to:z Visit level (level 0): Commands at this level are mainly used to diagnose network,and they cannot be saved in configuration file. For example, ping, tracert andtelnet are level 0 commands.
