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HP ProCurve Switch 2520 Series - CLI Commands

Introduction

The CLI is a text-based command interface for configuring and monitoring the switch. The CLI gives access to the switch’s full set of commands while providing the same password protection that is used in the web browser interface and the menu interface.

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Accessing the CLI

Like the menu interface, the CLI is accessed through the switch console in the switch’s factory default state. The switch’s factory default state is the default interface when console session is started. The console out-of-band can be accessed by directly connecting a terminal device to the switch, or in-band by using Telnet either from a terminal device or through the web browser interface.

CLI can be accessed by using the menu interface by selecting the Command Line (CLI) option in the Main Menu.

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Using the CLI

The CLI offers these privilege levels to help protect the switch from unauthorized access:
  • Operator

  • Manager

  • Global configuration

  • Context configuration

NOTE: CLI commands are not case-sensitive.

When the CLI is used to make a configuration change, the switch writes the change to the Running-Config file in volatile memory. This helps to test the configuration changes before making them permanent. To make changes permanent, use the write memory command to save them to the Startup-Config file in non-volatile memory. If the switch is rebooted without first using write memory , all changes made since the last reboot or write memory (whichever is later) will be lost. For more information on switch memory and saving configuration changes, refer to the Switch Memory and Configuration chapter in the Management and Configuration Guide. Click here to go to the Management and Configuration Guide Non-HP site .

Privilege levels at logon

Privilege levels control the type of access to the CLI. To implement this control, the Manager password must be set. Without a Manager password configured, anyone having serial port, telnet, or web browser access to the switch can reach all CLI levels.

When you use the CLI to log on to the switch, and passwords are set, you will be prompted to enter a password. For example:

Figure 1: Example of CLI log-on screen with password(s) set

1 - Password prompt

In the above case, you will enter the CLI at the level corresponding to the password you provide (operator or manager).

If no passwords are set when you log onto the CLI, you will enter at the Manager level. For example:

ProCurve# _

CAUTION: ProCurve strongly recommends that you configure a Manager password. If a Manager password is not configured, then the Manager level is not password-protected, and anyone having in-band or out-of-band access to the switch may be able to reach the Manager level and compromise switch and network security. Configuring only an Operator password does not prevent access to the Manager level by intruders who have the Operator password.

Pressing the Clear button on the front of the switch removes password protection. For this reason, it is recommended that you protect the switch from physical access by unauthorized persons. If you are concerned about switch security and operation, you should install the switch in a secure location, such as a locked wiring closet.

For more information on privilege level operation refer to the Management and Configuration Guide. Click here to go to the Management and Configuration Guide Non-HP site .

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CLI control and editing

Executing a prior command—Redo

The redo command executes a prior command in the history list.

Syntax : redo [number | command-str]

  • redo : Re-executes a command from history. Executes the last command by default.

  • number : The position of the command to execute in the history list. When number is specified, the nth command starting from the most recent command in the history is executed.

  • command-str : When command-str is specified, the most recent command whose name matches the specified string is executed.

Figure 2: Example of the redo command

1 - Executes the show arp command again.

Repeating execution of a command

The repeat command executes a previous command in the history list.

Syntax : repeat [cmdlist] [count] [delay]

repeat : Repeats execution of a previous command. Repeats the last command by default until a key is pressed.

cmdlist : If a number or range of numbers is specified, the command repeats the nth most recent commands (where n is the position in the history list).

count : Repeats the command for the number of times specified.

delay : The command repeats execution after a delay for the number of seconds specified.

For example : ProCurve(config)# repeat 1-4,7-8,10 count 2 delay 3

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CLI control and editing commands

Keystrokes
Function
[Ctrl] [A]
Jumps to the first character of the command line.
[Ctrl] [B] or
Moves the cursor back one character.
[Ctrl] [C]
Terminates a task and displays the command prompt.
[Ctrl] [D]
Deletes the character at the cursor.
[Ctrl] [E]
Jumps to the end of the current command line.
[Ctrl] [F] or
Moves the cursor forward one character.
[Ctrl] [K]
Deletes from the cursor to the end of the command line.
[Ctrl] [L] or [Ctrl] [R]
Repeats current command line on a new line.
[Ctrl] [N] or
Enters the next command line in the history buffer
[Ctrl] [P] or
Enters the previous command line in the history buffer.
[Ctrl] [U] or [Ctrl] [X]
Deletes from the cursor to the beginning of the command line.
[Ctrl] [W]
Deletes the last word typed.
[Esc] [B]
Moves the cursor backward one word.
[Esc] [D]
Deletes from the cursor to the end of the word.
[Esc] [F]
Moves the cursor forward one word.
[Backspace]
Deletes the first character to the left of the cursor in the command line.
[Spacebar]
Moves the cursor forward one character.

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