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CLI (Command Line Interface)
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NXA-ENET24 - Software Management Guide
Partial Keyword Lookup
If you terminate a partial keyword with a question mark, alternatives that match the initial letters are provided.
(Remember not to leave a space between the command and question mark.) For example “s?” shows all the
keywords starting with “s.”
Console#show s?
snmp sntp spanning-tree ssh startup-config system
Negating the Effect of Commands
For many configuration commands you can enter the prefix keyword “no” to cancel the effect of a command
or reset the configuration to the default value. For example, the logging command will log system messages to
a host server. To disable logging, specify the no logging command. This guide describes the negation effect for
all applicable commands.
Using Command History
The CLI maintains a history of commands that have been entered. You can scroll back through the history of
commands by pressing the up arrow key. Any command displayed in the history list can be executed again, or
first modified and then executed.
Using the show history command displays a longer list of recently executed commands.
Understanding Command Modes
The command set is divided into Exec and Configuration classes. Exec commands generally display
information on system status or clear statistical counters. Configuration commands, on the other hand, modify
interface parameters or enable certain switching functions. These classes are further divided into different
modes. Available commands depend on the selected mode.
You can always enter a question mark “?” at the prompt to display a list of the commands available for the
current mode. The command classes and associated modes are displayed in the following table:
Exec Commands
When you open a new console session on the switch with the user name and password “guest,” the system
enters the Normal Exec command mode (or guest mode), displaying the “Console>” command prompt. Only a
limited number of the commands are available in this mode. You can access all commands only from the
Privileged Exec command mode (or administrator mode).
To access Privilege Exec mode, open a new console session with the user name and password “admin.” The
system will now display the “Console#” command prompt. You can also enter Privileged Exec mode from
within Normal Exec mode, by entering the enable command, followed by the privileged level password
“super” (see page 169).
To enter Privileged Exec mode, enter the following commands and passwords:
Username: Admin
Password: [system login password]
CLI session with the Intelligent Fast Ethernet PoE Switch is
opened.
To end the CLI session, enter [Exit].
Console#
Command Modes
Class Mode
Exec Normal
Privileged
Configuration Global* Access Control List
Interface
Line
VLAN Database
* You must be in Privileged Exec mode to access any of the configuration modes.
You must be in Global Configuration mode to access any of the other configuration modes.