3Com S7906E - Switch, Configuration Manual

Page: 2339 / 2621

1-10
When you input a character string that matches multiple aliases partially, the system prompts you
for various matched information.
z
If you press Tab after you input the keyword of an alias, the original format of the keyword will be
displayed.
z
You can replace only the first keyword of a non-undo command instead of the complete command;
and you can replace only the second keyword of undo commands.
Follow these steps to configure command aliases:
To do… Use the command… Remarks
Enter system view system-view —
Enable the command alias
function
command-alias enable
Required
Disabled by default, that is, you
cannot configure command
aliases.
Configure command aliases
command-alias mapping
cmdkey alias
Required
Not configured by default.
Configuring User Privilege Levels and Command Levels
Introduction
To restrict different users’ access to the device, the system manages the users by their privilege levels.
User privilege levels correspond to command levels. After users at different privilege levels log in, they
can only use commands at their own, or lower, levels. All the commands are categorized into four levels,
which are visit, monitor, system, and manage from low to high, and identified respectively by 0 through
3. Table 1-3 describes the levels of the commands.
Table 1-3 Default command levels
Level Privilege Description
0 Visit
Involves commands for network diagnosis and commands
for accessing an external device. Commands at this level
are not allowed to be saved after being configured. After
the device is restarted, the commands at this level will be
restored to the default settings. Commands at this level
include
ping , tracert , telnet and ssh2 .
1 Monitor
Includes commands for system maintenance and service
fault diagnosis. Commands at this level are not allowed to
be saved after being configured. After the device is
restarted, the commands at this level will be restored to
the default settings. Commands at this level include
debugging , terminal , refresh , reset , and send .
2 System
Provides service configuration commands, including
routing and commands at each level of the network for
providing services. By default, commands at this level
include all configuration commands except for those at
manage level.