Reference Guide

1 Using the Command-Line Interface
Command Syntax
Command Conventions
Common Parameter Values
unit/slot/port Naming Convention
Using the “No” Form of a Command
Executing Show Commands
CLI Output Filtering
Command Modes
Command Completion and Abbreviation
CLI Error Messages
CLI Line-Editing Conventions
Using CLI Help
Accessing the CLI
The command-line interface (CLI) is a text-based way to manage and monitor the system. You can
access the CLI by using a direct serial connection or by using a remote logical connection with Telnet or
SSH.
This chapter describes the CLI syntax, conventions, and modes.
Command Syntax
A command is one or more words that might be followed by one or more parameters. Parameters can
be required or optional values.
Some commands, such as show network or clear vlan, do not require parameters. Other commands,
such as network parms, require that you supply a value after the command. You must type the
parameter values in a specific order, and optional parameters follow required parameters. The following
example describes the network parms command syntax:
network parms ipaddr netmask [gateway]
•
network parms is the command name.
•
ipaddr and netmask are parameters and represent required values that you must enter after you
type the command keywords.
•
[gateway] is an optional parameter, so you are not required to enter a value in place of the
parameter.
The CLI Command Reference lists each command by the command name and provides a brief
description of the command. Each command reference also contains the following information:
•
Format shows the command keywords and the required and optional parameters.
•
Mode identifies the command mode you must be in to access the command.
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