D-Link DXS-5000-54S Emulator - Page 14

5000 Series Layer 2/3 Managed Data Center Switch CLI Reference Guide 2. Using the Command-Line The command-line interface (CLI) constitutes a text-based means by which to monitor and manage the system. The CLI can be accessed by the use of a direct serial connection or through the used of a remote logical connection via telnet or SSH. Command Syntax A command consists of one or more words. A given command may or may not be followed by one or more parameters, as parameters may be required or optional depending on the command being used. For example, the commands network and clear vlan do not require parameters, whereas other commands, such as network parms, require that a value is included after the command. Such parameter values must be typed in a specific order, with any optional parameters following any required parameters. The following example illustrates the command syntax for the network parms command: network parms ipaddr netmask [gateway] • The term network parms is the name of the command itself. • The terms ipaddr and netmask are parameters and are examples of required values that must be entered after the command itself are entered. • The term [gateway] is an optional parameter, meaning that it is not required that a value be entered in place of the parameter. Each command is listed by the command name in the CLI Command Reference, which also provides a brief description of each command. The command keywords and the associated required and optional parameters are shown under Format. The command mode used must be in to access the command is indicated under Mode. The default value for a configurable setting on the device, if any, is indicated by Default. Furthermore, the information that a given command shows is described by the show command. Command Conventions For a given command, the parameters used may include mandatory values, optional values, or keyword choices. Such parameters follow a prescribed order. Table 1 explains the conventions used in this guide to distinguish between value types. Table 1: Parameter Conventions Symbol [] Brackets Italic font in a parameter Example [value] value or [value] {} Braces | Vertical bars [{}] Braces within brackets {choice1 | choice2} choice1 | choice2 [{choicel | choice2}] Description Denotes an optional parameter. Denotes a variable value. You must substitute the italicized text and brackets with an appropriate value, such as a name or number. Indicates a parameter selection option. Separates mutually exclusive choices. Denotes a choice within an optional 8