Cli Configuration; Introduction To The Cli; Command Hierarchy - 3Com WX3000 Series Operation Manual

1

CLI Configuration

The sample output information in this manual was created on the WX3024. The output information on
your device may vary.

Introduction to the CLI

A command line interface (CLI) is a user interface to interact with a device. Through the CLI on a device,
a user can enter commands to configure the device and check output information to verify the
configuration. Each device provides an easy-to-use CLI and a set of configuration commands for the
convenience of the user to configure and manage.
The CLI on the devices provide the following features, and so has good manageability and operability.
Hierarchical command protection: After users of different levels log in, they can only use
commands at their own, or lower, levels. This prevents users from using unauthorized commands
to configure devices.
Online help: Users can gain online help at any time by entering a question mark (?).
Debugging: Abundant and detailed debugging information is provided to help users diagnose and
locate network problems.
Command history function: This enables users to check the commands that they have lately
executed and re-execute the commands.
Partial matching of commands: The system will use partially matching method to search for
commands. This allows users to execute a command by entering partially-spelled command
keywords as long as the keywords entered can be uniquely identified by the system.

Command Hierarchy

The device uses hierarchical command protection for command lines, so as to inhibit users at lower
levels from using higher-level commands to configure the device.
Based on user privilege, commands are classified into four levels:
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 and telnet are level 0 commands.
Monitor level (level 1): Commands at this level are mainly used to maintain the system and
diagnose service faults, and they cannot be saved in configuration file. Such commands include
debugging and terminal.
System level (level 2): Commands at this level are mainly used to configure services. Commands
concerning routing and network layers are at this level. These commands can be used to provide
network services directly.
1-1