Cisco WS-X3011 Configuration Note page 27

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Getting Context-Sensitive Help
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Saving Configuration Changes
Cisco IOS Modes of Operation
The Cisco IOS software provides access to several different command modes. Each command mode
provides a different group of related commands.
For security purposes, the Cisco IOS software provides two levels of access to commands: user and
privileged. The unprivileged user mode is called user EXEC mode. The privileged mode is called
privileged EXEC mode and requires a password. The commands available in user EXEC mode are
a subset of the commands available in privileged EXEC mode.
Table 8 describes some of the most commonly used modes, how to enter the modes, and the resulting
prompts. Each prompt helps you identify which mode you are in and, therefore, which commands
are available to you.
Table 8
Mode of
Operation Usage
User EXEC User EXEC commands allow you to
connect to remote devices, change
terminal settings on a temporary
basis, perform basic tests, and list
system information. The EXEC
commands available at the user level
are a subset of those available at the
privileged level.
Privileged EXEC Privileged EXEC commands set
operating parameters. The
privileged commands include those
contained in user EXEC mode, and
also the configure command
through which you can access the
remaining command modes.
Privileged EXEC mode also
includes high-level testing
commands, such as debug.
Global Global configuration commands
configuration apply to features that affect the
system as a whole.
Interface Interface configuration commands
configuration modify the operation of an interface
such as an Ethernet or serial port.
Many features are enabled on a
per-interface basis. Interface
configuration commands always
follow an interface global
configuration command, which
defines the interface type.
IOS Modes of Operation
How to Enter the Mode
Log in.
From user EXEC mode, enter the
enable EXEC command.
From global configuration mode,
enter the configure privileged
EXEC command.
From global configuration mode,
enter the interface type number
command. For example, enter the
interface serial 0 command to
configure the serial 0 interface.
Cisco IOS Software Basics
Prompt
Router>
Router#
Router(config)#
Router(config-if)#
Router Card (WS-X3011) Configuration Note 27