Introduction To The Cli - Huawei Quidway S3900 Series Operation Manual

Operation Manual - CLI
Quidway S3900 Series Ethernet Switches-Release 1510

1.1 Introduction to the CLI

A Quidway series Ethernet switch provides a command line interface (CLI) and
commands for you to configure and manage the Ethernet switch. The CLI is featured by
the following:
Commands are grouped by levels. This prevents unauthorized users from
operating the switch with relevant commands.
Users can gain online help at any time by entering the question mark "?".
Commonly used diagnosing utilities (such as Tracert and Ping) are available.
Debugging information of various kinds is available.
The command history is available. You can recall and execute a history command
easily.
You can execute a command by only entering part of the command in the CLI, as
long as the keywords you input uniquely identify the corresponding ones.
1.2 Command Level/Command View
To prevent unauthorized accesses, commands are grouped by command levels.
Commands fall into four levels: visit, monitor, system, and manage:
Visit level: Commands at this level are mainly used to diagnose network and
change the language mode of user interface, and cannot be saved in configuration
files. For example, the ping, tracert, and language-mode commands are at this
level.
Monitor level: Commands at this level are mainly used to maintain the system and
diagnose service problems, and cannot be saved to configuration files. For
example, the display and debugging commands are at this level.
System level: Commands at this level are mainly used to configure services.
Commands concerning routing and network layers are at this level. You can utilize
network services by using these commands.
Manage level: Commands at this level are associated with the basic operation of
the system, and the system supporting modules. These commands provide
supports to services. Commands concerning file system, FTP/TFTP/XModem
downloading, user management, and level setting are at this level.
Users logging into a switch also fall into four levels, each of which corresponding to one
of the above command levels. Users at a specific level can only use the commands of
the same level and those of the lower levels.
Chapter 1 CLI Overview
Huawei Technologies Proprietary
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Chapter 1 CLI Overview