Linksys DES-3028, DES-3028P, DES-3052, DES-3052P User Manual

D-Link™DES-3028/DES-3028P/DES-3052/DES-3052P

Managed 10/100Mbps Fast Ethernet Switch Release I

CLI Reference Manual

_________________________________________________________________________________

Information in this document is subject to change without notice. © 2007 D-Link Corporation. All rights reserved.

Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden.

Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks of Microsoft Corporation.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. D-Link Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.

March 2007 P/N 651ES3052015G

	Table of Contents
CLI REFERENCE MANUAL .........................................................................................................................................	I
INTRODUCTION ..........................................................................................................................................................	1
USING THE CONSOLE CLI.........................................................................................................................................	4
COMMAND SYNTAX ...................................................................................................................................................	8
BASIC SWITCH COMMANDS...................................................................................................................................	10
MODIFY BANNER AND PROMPT COMMANDS .....................................................................................................	20
SWITCH PORT COMMANDS ....................................................................................................................................	23
PORT SECURITY COMMANDS................................................................................................................................	26
NETWORK MANAGEMENT (SNMP) COMMANDS .................................................................................................	30
SWITCH UTILITY COMMANDS ................................................................................................................................	49
NETWORK MONITORING COMMANDS ..................................................................................................................	57
MULTIPLE SPANNING TREE PROTOCOL (MSTP) COMMANDS .........................................................................	69
FORWARDING DATABASE COMMANDS...............................................................................................................	81
BROADCAST STORM CONTROL COMMANDS .....................................................................................................	87
COS COMMANDS......................................................................................................................................................	91
PORT MIRRORING COMMANDS ...........................................................................................................................	105
VLAN COMMANDS .................................................................................................................................................	108
LINK AGGREGATION COMMANDS.......................................................................................................................	113
BASIC IP COMMANDS............................................................................................................................................	118
IGMP SNOOPING COMMANDS..............................................................................................................................	121
DHCP RELAY...........................................................................................................................................................	128
802.1X COMMANDS................................................................................................................................................	133

ACCESS CONTROL LIST (ACL) COMMANDS......................................................................................................	151
TIME RANGE COMMANDS.....................................................................................................................................	164
SAFEGUARD ENGINE COMMANDS......................................................................................................................	166
TRAFFIC SEGMENTATION COMMANDS..............................................................................................................	168
TIME AND SNTP COMMANDS ...............................................................................................................................	170
ARP COMMANDS....................................................................................................................................................	176
ROUTING TABLE COMMANDS..............................................................................................................................	180
MAC NOTIFICATION COMMANDS ........................................................................................................................	182
ACCESS AUTHENTICATION CONTROL COMMANDS ........................................................................................	185
SSH COMMANDS....................................................................................................................................................	206
SSL COMMANDS ....................................................................................................................................................	213
D-LINK SINGLE IP MANAGEMENT COMMANDS.................................................................................................	219
SMTP COMMANDS .................................................................................................................................................	229
POE COMMANDS....................................................................................................................................................	233
COMMAND HISTORY LIST.....................................................................................................................................	237
TECHNICAL SPECIFICATIONS..............................................................................................................................	241

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

1

INTRODUCTION

The Switch can be managed through the Switch’s serial port, Telnet, or the Web-based management agent. The Command Line Interface (CLI) can be used to configure and manage the Switch via the serial port or Telnet interfaces.

This manual provides a reference for all of the commands contained in the CLI. Configuration and management of the Switch via the Web-based management agent is discussed in the Manual. This manual provides a reference for all of the commands contained in the CLI for members of this series, including the DES-3028, DES-3028P, DES-3052, and DES-3052P. Examples present in this manual may refer to any member of this series and may show different port counts, but are universal to this series of switches, unless otherwise stated. Configuration and management of the Switch via the Web-based management agent is discussed in the User’s Guide.

Accessing the Switch via the Serial Port

The Switch’s serial port’s default settings are as follows:

•9600 baud

•no parity

•8 data bits

•1 stop bit

A computer running a terminal emulation program capable of emulating a VT-100 terminal and a serial port configured as above is then connected to the Switch’s serial port via an RS-232 DB-9 cable.

With the serial port properly connected to a management computer, the following screen should be visible. If this screen does not appear, try pressing Ctrl+r to refresh the console screen.

Figure 1-1. Initial CLI screen

There is no initial username or password. Just press the Enter key twice to display the CLI input cursor − DES-3028P:4#. This is the command line where all commands are input.

1

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

Setting the Switch’s IP Address

Each Switch must be assigned its own IP Address, which is used for communication with an SNMP network manager or other TCP/IP application (for example BOOTP, TFTP). The Switch’s default IP address is 10.90.90.90. Users can change the default Switch IP address to meet the specification of your networking address scheme.

The Switch is also assigned a unique MAC address by the factory. This MAC address cannot be changed, and can be found on the initial boot console screen – shown below.

Figure 1-2. Boot screen

The Switch’s MAC address can also be found in the Web management program on the Switch Information (Basic Settings) window on the Configuration menu.

The IP address for the Switch must be set before it can be managed with the Web-based manager. The Switch IP address can be automatically set using BOOTP or DHCP protocols, in which case the actual address assigned to the Switch must be known.

The IP address may be set using the Command Line Interface (CLI) over the console serial port as follows:

1.Starting at the command line prompt, enter the commands config ipif System ipaddress xxx.xxx.xxx.xxx/yyy.yyy.yyy.yyy. Where the x’s represent the IP address to be assigned to the IP interface named System and the y’s represent the corresponding subnet mask.

2.Alternatively, users can enter config ipif System ipaddress xxx.xxx.xxx.xxx/z. Where the x’s represent the IP address to be assigned to the IP interface named System and the z represents the corresponding number of subnets in CIDR notation.

The IP interface named System on the Switch can be assigned an IP address and subnet mask which can then be used to connect a management station to the Switch’s Telnet or Web-based management agent.

2

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

Figure 1-3. Assigning an IP Address

In the above example, the Switch was assigned an IP address of 10.90.90.91 with a subnet mask of 255.0.0.0. The system message Success indicates that the command was executed successfully. The Switch can now be configured and managed via Telnet, SNMP MIB browser and the CLI or via the Web-based management agent using the above IP address to connect to the Switch.

3

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

2

USING THE CONSOLE CLI

The DES-3028/28P/52/52P support a console management interface that allows the user to connect to the Switch’s management agent via a serial port and a terminal or a computer running a terminal emulation program. The console can also be used over the network using the TCP/IP Telnet protocol. The console program can be used to configure the Switch to use an SNMP-based network management software over the network.

This chapter describes how to use the console interface to access the Switch, change its settings, and monitor its operation.

Note: Switch configuration settings are saved to non-volatile RAM using the save command. The current configuration will then be retained in the Switch’s NV-RAM, and reloaded when the Switch is rebooted. If the Switch is rebooted without using the save command, the last configuration saved to NV-RAM will be loaded.

Connecting to the Switch

The console interface is used by connecting the Switch to a VT100-compatible terminal or a computer running an ordinary terminal emulator program (e.g., the HyperTerminal program included with the Windows operating system) using an RS-232C serial cable. Your terminal parameters will need to be set to:

•VT-100 compatible

•9600 baud

•8 data bits

•No parity

•One stop bit

•No flow control

Users can also access the same functions over a Telnet interface. Once users have set an IP address for your Switch, users can use a Telnet program (in VT-100 compatible terminal mode) to access and control the Switch. All of the screens are identical, whether accessed from the console port or from a Telnet interface.

After the Switch reboots and users have logged in, the console looks like this:

Figure 2-1. Initial Console Screen after logging in

Commands are entered at the command prompt, DES-3028P:4#.

There are a number of helpful features included in the CLI. Entering the ? command will display a list of all of the top-level commands.

4

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

Figure 2-2. The ? Command

When users enter a command without its required parameters, the CLI will prompt users with a Next possible completions: message.

Figure 2-3. Example Command Parameter Help

In this case, the command config account was entered with the parameter <username>. The CLI will then prompt users to enter the <username> with the message, Next possible completions:. Every command in the CLI has this feature, and complex commands have several layers of parameter prompting.

In addition, after typing any given command plus one space, users can see all of the next possible sub-commands, in sequential order, by repeatedly pressing the Tab key.

To re-enter the previous command at the command prompt, press the up arrow cursor key. The previous command will appear at the command prompt.

5

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

Figure 2-4. Using the Up Arrow to Re-enter a Command

In the above example, the command config account was entered without the required parameter <username>, the CLI returned the Next possible completions: <username> prompt. The up arrow cursor control key was pressed to re-enter the previous command (config account) at the command prompt. Now the appropriate username can be entered and the config account command re-executed.

All commands in the CLI function in this way. In addition, the syntax of the help prompts are the same as presented in this manual − angle brackets < > indicate a numerical value or character string, braces { } indicate optional parameters or a choice of parameters, and brackets [ ] indicate required parameters.

If a command is entered that is unrecognized by the CLI, the top-level commands will be displayed under the Available commands: prompt.

Figure 2-5. The Next Available Commands Prompt

The top-level commands consist of commands such as show or config. Most of these commands require one or more parameters to narrow the top-level command. This is equivalent to show what? or config what? Where the what? is the next parameter.

For example, if users enter the show command with no additional parameters, the CLI will then display all of the possible next parameters.

6

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

Figure 2-6. Next possible completions: Show Command

In the above example, all of the possible next parameters for the show command are displayed. At the next command prompt, the up arrow was used to re-enter the show command, followed by the account parameter. The CLI then displays the user accounts configured on the Switch.

7

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

3

COMMAND SYNTAX

The following symbols are used to describe how command entries are made and values and arguments are specified in this manual.

Note: All commands are case-sensitive. Be sure to disable Caps Lock or any other unwanted function that changes text case.

<angle brackets>

Purpose	Encloses a variable or value that must be specified.
Syntax	config ipif <ipif_name 12> [{ipaddress <network_address> |
	vlan <vlan_name 32> | state [enable | disable}] | bootp | dhcp]
Description	In the above syntax example, users must supply an IP interface
	name in the <ipif_name 12> space, a VLAN name in the
	<vlan_name 32> space, and the network address in the
	<network_address> space. Do not type the angle brackets.
Example	config ipif Engineering ipaddress 10.24.22.5/255.0.0.0 vlan
Command	Design state enable

[square brackets]

Purpose	Encloses a required value or set of required arguments. One value
	or argument can be specified.
Syntax	create account [admin | user] <username 15>
Description	In the above syntax example, users must specify either an admin or
	a user level account to be created. Do not type the square brackets.
Example	create account admin Darren
Command

| vertical bar

Purpose	Separates two or more mutually exclusive items in a list, one of
	which must be entered.
Syntax	create account [admin | user] <username 15>
Description	In the above syntax example, users must specify either admin, or
	user. Do not type the vertical bar.
Example	create account admin Darren
Command

{braces}

Purpose	Encloses an optional value or set of optional arguments.
Syntax	reset {[config | system]}
Description	In the above syntax example, users have the option to specify
	config or system. It is not necessary to specify either optional value,

8

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

{braces}

	however the effect of the system reset is dependent on which, if any,
	value is specified. Therefore, with this example there are three
	possible outcomes of performing a system reset. See the following
	chapter, Basic Commands for more details about the reset
	command.
Example	reset config
command

Line Editing Key Usage

Delete	Deletes the character under the cursor and then shifts the
	remaining characters in the line to the left.
Backspace	Deletes the character to the left of the cursor and then shifts the
	remaining characters in the line to the left.
Insert or Ctrl+R	Toggle on and off. When toggled on, inserts text and shifts previous
	text to the right.
Left Arrow	Moves the cursor to the left.
Right Arrow	Moves the cursor to the right.
Up Arrow	Repeats the previously entered command. Each time the up arrow
	is pressed, the command previous to that displayed appears. This
	way it is possible to review the command history for the current
	session. Use the down arrow to progress sequentially forward
	through the command history list.
Down Arrow	The down arrow will display the next command in the command
	history entered in the current session. This displays each command
	sequentially as it was entered. Use the up arrow to review previous
	commands.
Tab	Shifts the cursor to the next field to the left.

Multiple Page Display Control Keys

Space	Displays the next page.
CTRL+c	Stops the display of remaining pages when multiple pages are to be
	displayed.
ESC	Stops the display of remaining pages when multiple pages are to be
	displayed.
n	Displays the next page.
p	Displays the previous page.
q	Stops the display of remaining pages when multiple pages are to be
	displayed.
r	Refreshes the pages currently displayed.
a	Displays the remaining pages without pausing between pages.
Enter	Displays the next line or table entry.

9

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

4

BASIC SWITCH COMMANDS

The basic switch commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table.

Command	Parameters
create account	[admin | user] <username 15>
config account	<username 15>
show account
delete account	<username 15>
show session
show switch
show serial_port
config serial_port	{baud_rate [9600 | 19200 | 38400 | 115200] auto_logout [never | 2_minutes |
	5_minutes | 10_minutes | 15_minutes]}
enable clipaging
disable clipaging
enable telnet	<tcp_port_number 1-65535>
disable telnet
telnet	<ipaddr> {tcp_port <value 0-65535>}
enable web	<tcp_port_number 1-65535>
disable web
save
reboot
reset	{[config | system]}
login
logout

Each command is listed, in detail, in the following sections.

create account

Purpose	Used to create user accounts.
Syntax	create [admin | user] <username 15>
Description	The create account command is used to create user accounts that
	consist of a username of 1 to 15 characters and a password of 0 to
	15 characters. Up to 8 user accounts can be created.
Parameters	admin <username>
	user <username>
Restrictions	Only Administrator-level users can issue this command.
	Usernames can be between 1 and 15 characters.
	Passwords can be between 0 and 15 characters.

Example usage:

10

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

To create an administrator-level user account with the username “dlink”.

DES-3028P:4#create account admin dlink

Command: create account admin dlink

Enter a case-sensitive new password:****

Enter the new password again for confirmation:****

Success.

DES-3028P:4#

NOTICE: In case of lost passwords or password corruption, please refer to the D-Link website and the White Paper entitled “Password Recovery Procedure”, which will guide you through the steps necessary to resolve this issue.

config account

Purpose	Used to configure user accounts
Syntax	config account <username>
Description	The config account command configures a user account that has
	been created using the create account command.
Parameters	<username>
Restrictions	Only Administrator-level users can issue this command.
	Usernames can be between 1 and 15 characters.
	Passwords can be between 0 and 15 characters.

Example usage:

To configure the user password of “dlink” account:

	DES-3028P:4#config account dlink
	Command: config account dlink
	Enter a old password:****
	Enter a case-sensitive new password:****
	Enter the new password again for confirmation:****
	Success.
	DES-3028P:4#
show account
Purpose	Used to display user accounts.
Syntax	show account
Description	Displays all user accounts created on the Switch. Up to 8 user
	accounts can exist at one time.
Parameters	None.
Restrictions	Only Administrator-level users can issue this command.

Example usage:

To display the accounts that have been created:

11

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

DES-3028P:4#show account

Command: show account

	Current Accounts:
	Username		Access Level
---------------			------------
	dlink		Admin
	Total Entries: 1
	DES-3028P:4#
delete account
Purpose		Used to delete an existing user account.
Syntax		delete account <username>
Description		The delete account command deletes a user account that has
		been created using the create account command.
Parameters		<username>
Restrictions		Only Administrator-level users can issue this command.

Example usage:

To delete the user account “System”:

DES-3028P:4#delete account System

Command: delete account System

	Success.
	DES-3028P:4#
show session
Purpose		Used to display a list of currently logged-in users.
Syntax		show session
Description		This command displays a list of all the users that are logged-in at
		the time the command is issued.
Parameters		None.
Restrictions		None.

12

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

Example usage:

To display the way that the users logged in:

DES-3028P:4#show session
Command: show session
ID	Login Time	Live Time From		Level	Name
--	------------------------------	---------	------------	-----	-----------
8	00000 days 00:00:37	0:3:36:27	Serial Port	4	Anonymous
Total Entries: 1
CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh

show switch

Purpose	Used to display general information about the Switch.
Syntax	show switch
Description	This command displays information about the Switch.
Parameters	None.
Restrictions	Only Administrator-level users can issue this command.

Example usage:

To display the Switch’s information:

DES-3028P:4#show switch

Command: show switch

Device Type	: DES-3028P Fast Ethernet Switch
MAC Address	: 00-01-02-03-04-00
IP Address	: 10.90.90.91 (Manual)
VLAN Name	: default
Subnet Mask	: 255.0.0.0
Default Gateway	: 0.0.0.0
Boot PROM Version : Build 1.00.B04
Firmware Version	: Build 1.00-B22
Hardware Version	: 1A1G
System Name	: DES-3028P
System Location	: 7th_flr_east_cabinet
System Contact	: Channing_Frye_212-555-6666
Spanning Tree	: Disabled
GVRP	: Disabled
IGMP Snooping	: Disabled
802.1x	: Disabled
TELNET	: Enabled (TCP 23)
WEB	: Enabled (TCP 80)
RMON	: Enabled
SSH	: Enabled
SSL	: Enabled
Clipaging	: Enabled
Syslog Global State	: Disabled
Dual Image	: Supported

DES-3028P:4#

13

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

show serial_port

Purpose	Used to display the current serial port settings.
Syntax	show serial_port
Description	This command displays the current serial port settings.
Parameters	None.
Restrictions	None

Example usage:

To display the serial port setting:

DES-3028P:4#show serial_port

Command: show serial_port

Baud Rate	: 9600
Data Bits	: 8
Parity Bits	: None
Stop Bits	: 1
Auto-Logout	: 10 mins

DES-3028P:4#

config serial_port

Purpose	Used to configure the serial port.
Syntax	config serial_port {baud_rate [9600 | 19200 | 38400 | 115200] |
	auto_logout [never | 2_minutes | 5_minutes | 10_minutes |
	15_minutes]}
Description	This command is used to configure the serial port’s baud rate and auto
	logout settings.
Parameters	baud_rate [9600 | 19200 | 38400 | 115200]− The serial bit rate that will be
	used to communicate with the management host. There are four options:
	9600, 19200, 38400, 115200.
	never − No time limit on the length of time the console can be open with
	no user input.
	2_minutes − The console will log out the current user if there is no user
	input for 2 minutes.
	5_minutes − The console will log out the current user if there is no user
	input for 5 minutes.
	10_minutes − The console will log out the current user if there is no user
	input for 10 minutes.
	15_minutes − The console will log out the current user if there is no user
	input for 15 minutes.
Restrictions	Only administrator-level users can issue this command.

Example usage:

To configure the baud rate:

DES-3028P:4#config serial_port baud_rate 115200

Command: config serial_port baud_rate 115200

Success.

DES-3028P:4#

14

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

enable clipaging

Purpose	Used to pause the scrolling of the console screen when a command
	displays more than one page.
Syntax	enable clipaging
Description	This command is used when issuing a command which causes the
	console screen to rapidly scroll through several pages. This
	command will cause the console to pause at the end of each page.
	The default setting is enabled.
Parameters	None.
Restrictions	Only administrator-level users can issue this command.

Example usage:

To enable pausing of the screen display when the show command output reaches the end of the page:

DES-3028P:4#enable clipaging

Command: enable clipaging

	Success.
	DES-3028P:4#
disable clipaging
Purpose		Used to disable the pausing of the console screen scrolling at the
		end of each page when a command displays more than one screen
		of information.
Syntax		disable clipaging
Description		This command is used to disable the pausing of the console screen
		at the end of each page when a command would display more than
		one screen of information.
Parameters		None.
Restrictions		Only administrator-level users can issue this command.

Example usage:

To disable pausing of the screen display when show command output reaches the end of the page:

DES-3028P:4#disable clipaging

Command: disable clipaging

Success.

DES-3028P:4#

enable telnet

Purpose	Used to enable communication with and management of the Switch
	using the Telnet protocol.
Syntax	enable telnet <tcp_port_number 1-65535>
Description	This command is used to enable the Telnet protocol on the Switch.
	The user can specify the TCP or UDP port number the Switch will
	use to listen for Telnet requests.
Parameters	<tcp_port_number 1-65535> − The TCP port number. TCP ports

15

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

enable telnet

	are numbered between 1 and 65535. The “well-known” TCP port for
	the Telnet protocol is 23.
Restrictions	Only administrator-level users can issue this command.

Example usage:

To enable Telnet and configure port number:

DES-3028P:4#enable telnet 23

Command: enable telnet 23

	Success.
	DES-3028P:4#
disable telnet
Purpose		Used to disable the Telnet protocol on the Switch.
Syntax		disable telnet
Description		This command is used to disable the Telnet protocol on the Switch.
Parameters		None.
Restrictions		Only administrator-level users can issue this command.

Example usage:

To disable the Telnet protocol on the Switch:

DES-3028P:4#disable telnet

Command: disable telnet

Success.

DES-3028P:4#

telnet

Purpose	Used to Telnet another device on the network.
Syntax	telnet <ipaddr> {tcp_port <value 0-65535>}
Description	This command is used to connect to another device’s management
	through Telnet.
Parameters	<ipaddr> - Enter the IP address of the device to connect through,
	using Telnet.
	tcp_port <value 0-65535> - Enter the TCP port number used to
	connect through. The common TCP port number for telnet is 23.
Restrictions	Only administrator-level users can issue this command.

Example usage:

To connect to a device through telnet with a IP address of 10.53.13.99:

DES-3028P:4#telnet 10.53.13.99 tcp_port 23

Command: telnet 10.53.13.99 tcp_port 23

16

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

enable web

Purpose	Used to enable the HTTP-based management software on the Switch.
Syntax	enable web <tcp_port_number 1-65535>
Description	This command is used to enable the Web-based management software
	on the Switch. The user can specify the TCP port number the Switch will
	use to listen for Telnet requests.
Parameters	<tcp_port_number 1-65535> − The TCP port number. TCP ports are
	numbered between 1 and 65535. The “well-known” port for the Web-
	based management software is 80.
Restrictions	Only administrator-level users can issue this command.

Example usage:

To enable HTTP and configure port number:

DES-3028P:4#enable web 80

Command: enable web 80

Note: SSL will be disabled if web is enabled.

Success.

DES-3028P:4#

disable web

Purpose	Used to disable the HTTP-based management software on the
	Switch.
Syntax	disable web
Description	This command disables the Web-based management software on
	the Switch.
Parameters	None.
Restrictions	Only administrator-level users can issue this command.

Example usage:

To disable HTTP:

DES-3028P:4#disable web

Command: disable web

Success.

DES-3028P:4#

save

Purpose	Used to save changes in the Switch’s configuration to non-volatile
	RAM.
Syntax	save
Description	This command is used to enter the current switch configuration into
	non-volatile RAM. The saved switch configuration will be loaded into
	the Switch’s memory each time the Switch is restarted.
Parameters	None

17

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

save

Restrictions

Only administrator-level users can issue this command.

Example usage:

To save the Switch’s current configuration to non-volatile RAM:

DES-3028P:4#save

Command: save

Saving all configurations to NV-RAM... Done.

Success.

DES-3028P:4#

reboot

Purpose	Used to restart the Switch.
Syntax	reboot
Description	This command is used to restart the Switch.
Parameters	None.
Restrictions	None.

Example usage:

To restart the Switch:

DES-3028P:4#reboot

Command: reboot

Are users sure want to proceed with the system reboot? (y|n)

Please wait, the switch is rebooting...

reset

Purpose	Used to reset the Switch to the factory default settings.
Syntax	reset {[config | system]}
Description	This command is used to restore the Switch’s configuration to the
	default settings assigned from the factory.
Parameters	config − If the keyword ‘config’ is specified, all of the factory default
	settings are restored on the Switch including the IP address, user
	accounts, and the switch history log. The Switch will not save or
	reboot.
	system − If the keyword ‘system’ is specified all of the factory default
	settings are restored on the Switch. The Switch will save and reboot
	after the settings are changed to default. Rebooting will clear all
	entries in the Forwarding Data Base.
	If no parameter is specified, the Switch’s current IP address, user
	accounts, and the switch history log are not changed. All other
	parameters are restored to the factory default settings. The Switch
	will not save or reboot.
Restrictions	Only administrator-level users can issue this command.

Example usage:

18

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

To restore all of the Switch’s parameters to their default values:

DES-3028P:4#reset config

Command: reset config

Are you sure you want to proceed with system reset?(y/n)

Success.

DES-3028P:4#

login

Purpose	Used to log in a user to the Switch’s console.
Syntax	login
Description	This command is used to initiate the login procedure. The user will be
	prompted for a Username and Password.
Parameters	None.
Restrictions	None.

Example usage:

To initiate the login procedure:

	DES-3028P:4#login
	Command: login
	UserName:
logout
Purpose		Used to log out a user from the Switch’s console.
Syntax		logout
Description		This command terminates the current user’s session on the Switch’s
		console.
Parameters		None.
Restrictions		None.

Example usage:

To terminate the current user’s console session:

DES-3028P:4#logout

19

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

5

MODIFY BANNER AND PROMPT COMMANDS

Administrator level users can modify the login banner (greeting message) and command prompt by using the commands described below.

Command	Parameters
config command_ prompt	[<string 16> | username | default]
config greeting_message	{default}
show greeting_message
enable greeting_message
disable greeting_message

The Modify Banner and Prompt commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table.

config command prompt

Purpose	Used to configure the command prompt.
Syntax	config command_prompt [<string 16> | username | default]
Description	Administrator level users can use this command to change the
	command prompt.
Parameters	string 16 - The command prompt can be changed by entering a
	new name of no more that 16 characters.
	username - The command prompt will be changed to the login
	username.
	default – The command prompt will reset to factory default
	command prompt.
Restrictions	Only administrator-level users can issue this command. Other
	restrictions include:
	• If the “reset/reset config” command is executed, the
	modified command prompt will remain modified. However,
	the “reset system” command will reset the command
	prompt to the original factory banner.

Example usage

To modify the command prompt to “AtYourService”:

DES-3028P:4#config command_prompt AtYourService

Command: config command_prompt AtYourService

Success.

AtYourService:4#

config greeting _message

Purpose	Used to configure the login banner (greeting message).
Syntax	config greeting _message {default}
Description	Users can use this command to modify the login banner (greeting

20

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

config greeting _message

message).

Parameters	default – If the user enters default to the modify banner command, then
	the banner will be reset to the original factory banner.
	To open the Banner Editor, click Enter after typing the config
	greeting_message command. Type the information to be displayed on
	the banner by using the commands described on the Banner Editor:
	Quit without save:	Ctrl+C
	Save and quit:	Ctrl+W
	Move cursor:	Left/Right/Up/Down
	Delete line:	Ctrl+D
	Erase all setting:	Ctrl+X
	Reload original setting:	Ctrl+L
Restrictions	Only administrator-level users can issue this command. Other restrictions
	include:

•If the “reset/reset config” command is executed, the modified banner will remain modified. However, the “reset system” command will reset the modified banner to the original factory banner.

•The capacity of the banner is 6*80. 6 Lines and 80 characters per line.

•Ctrl+W will only save the modified banner in the DRAM. Users need to type the “save” command to save it into FLASH.

•Only valid in threshold level.

Example usage:

To modify the banner to read “Say goodnight, Gracie”:

DES-3028P:4# config greeting_message

Command: config greeting_message

Greeting Messages Editor

================================================================================

Say Goodnight, Gracie

DGS-3028P Fast Ethernet Switch

Command Line Interface

Firmware: Build 1.00-B22

Copyright(C) 2006-2009D-Link Corporation. All rights reserved.

================================================================================

<Function Key>		<Control Key>
Ctrl+C	Quit without save	left/right/
Ctrl+W	Save and quit	up/down	Move cursor
		Ctrl+D	Delete line
		Ctrl+X	Erase all setting
		Ctrl+L	Reload original setting

--------------------------------------------------------------------------------------------------------------------------------------------

21

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

show greeting_message

Purpose	Used to view the currently configured greeting message
	configured on the Switch.
Syntax	show greeting_message
Description	This command is used to view the currently configured greeting
	message on the Switch.
Parameters	None.
Restrictions	None.

Example usage:

To view the currently configured greeting message:

DES-3028P:4#show greeting_message

Command: show greeting_message

=========================================================================

DES-3028P Fast Ethernet Switch Command Line Interface

Firmware: Build 1.00-B22

Copyright(C) 2006-2009 D-Link Corporation. All rights reserved.

=========================================================================

DES-3028P:4#

22

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

6

SWITCH PORT COMMANDS

The switch port commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table.

Command	Parameters
config ports	[<portlist> | all] {medium_type [fiber | copper]} {speed [auto | 10_half | 10_full | 100_half
	| 100_full | 1000_full {[master | slave]}] | flow_control [enable | disable] | learning
	[enable | disable] | state [enable | disable] | [description <desc 1-32> |
	clear_description]}
show ports	[<portlist>] {description}

Each command is listed, in detail, in the following sections.

config ports

Purpose	Used to configure the Switch’s Ethernet port settings.
Syntax	[<portlist> | all] {medium_type [fiber | copper]} {speed [auto | 10_half | 10_full | 100_half |
	100_full | 1000_full {[master | slave]}] | flow_control [enable | disable] | learning [enable |
	disable] | state [enable | disable] | [description <desc 1-32> | clear_description]}
Description	This command allows for the configuration of the Switch’s Ethernet ports. Only the ports listed in
	the <portlist> will be affected.
Parameters	all − Configure all ports on the Switch.
	<portlist> − Specifies a port or range of ports to be configured.
	medium_type [fiber | copper] – This applies only to the Combo ports. If configuring the Combo
	ports this defines the type of transport medium used.
	speed – Allows the user to adjust the speed for a port or range of ports. The user has a choice of
	the following:

•auto − Enables auto-negotiation for the specified range of ports.

•[10 | 100 | 1000] − Configures the speed in Mbps for the specified range of ports. Gigabit ports are statically set to 1000 and cannot be set to slower speeds.

•[half | full] − Configures the specified range of ports as either full-duplex or half-duplex.

•[master | slave] - The master setting (1000M/Full_M) will allow the port to advertise capabilities related to duplex, speed and physical layer type. The master setting will also determine the master and slave relationship between the two connected physical layers. This relationship is necessary for establishing the timing control between the two physical layers. The timing control is set on a master physical layer by a local source. The slave setting (1000M/Full_S) uses loop timing, where the timing comes form a data stream received from the master. If one connection is set for 1000M/Full_M, the other side of the connection must be set for 1000M/Full_S. Any other configuration will result in a link down status for both ports.

	flow_control [enable | disable] – Enable or disable flow control for the specified ports.
	learning [enable | disable] − Enables or disables the MAC address learning on the specified
	range of ports.
	state [enable | disable] − Enables or disables the specified range of ports.
	description <desc 32> - Enter an alphanumeric string of no more than 32 characters to describe
	a selected port interface.
	clear_description - Enter this command to clear the port description of the selected port(s).
Restrictions	Only administrator-level users can issue this command.

23

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

Example usage:

To configure the speed of port 3 to be 10 Mbps, full duplex, with learning and state enabled:

DES-3028P:4#config ports 1-3 speed 10_full state enable

Command: config ports 1-3 speed 10_full state enable

Success.

DES-3028P:4#

show ports

Purpose	Used to display the current configuration of a range of ports.
Syntax	show ports [<portlist>] {description | err_disabled}
Description	This command is used to display the current configuration of a
	range of ports.
Parameters	<portlist> − Specifies a port or range of ports to be displayed.
	{description} – Adding this parameter to the show ports command
	indicates that a previously entered port description will be included
	in the display.
	err_disabled – Use this to list disabled ports including connection
	status and reason for being disabled.
Restrictions	None.

Example usage:

To display the configuration of all ports on a standalone switch:

DES-3028P:4#show ports

Command show ports

Port	Port	Settings	Connection	Address
	State	Speed/Duplex/FlowCtrl	Speed/Duplex/FlowCtrl	Learning
------	--------	---------------------	---------------------	--------
1	Enabled	Auto/Enabled	Link Down	Enabled
2	Enabled	Auto/Enabled	Link Down	Enabled
3	Enabled	Auto/Enabled	Link Down	Enabled
4	Enabled	Auto/Enabled	Link Down	Enabled
5	Enabled	Auto/Enabled	Link Down	Enabled
6	Enabled	Auto/Enabled	Link Down	Enabled
7	Enabled	Auto/Enabled	Link Down	Enabled
8	Enabled	Auto/Enabled	Link Down	Enabled
9	Enabled	Auto/Enabled	Link Down	Enabled
10	Enabled	Auto/Enabled	100M/Full/None	Enabled
11	Enabled	Auto/Enabled	Link Down	Enabled
12	Enabled	Auto/Enabled	Link Down	Enabled
13	Enabled	Auto/Disabled	Link Down	Enabled
14	Enabled	Auto/Disabled	Link Down	Enabled
15	Enabled	Auto/Disabled	Link Down	Enabled
16	Enabled	Auto/Disabled	Link Down	Enabled
17	Enabled	Auto/Disabled	Link Down	Enabled
18	Enabled	Auto/Disabled	Link Down	Enabled
19	Enabled	Auto/Disabled	Link Down	Enabled
20	Enabled	Auto/Disabled	Link Down	Enabled

CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh

24

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

Example usage:

To display the configuration of all ports on a standalone switch, with description:

DES-3028P:4#show ports description

Command: show ports description

Port	Port	Settings	Connection	Address
	State	Speed/Duplex/FlowCtrl Speed/Duplex/FlowCtrl		Learning
------	--------	---------------------	---------------------	--------
1	Enabled	Auto/Disabled	Link Down	Enabled
Desc: dads1
2	Enabled	Auto/Disabled	Link Down	Enabled
Desc:
3	Enabled	Auto/Disabled	Link Down	Enabled
Desc:
4	Enabled	Auto/Disabled	Link Down	Enabled
Desc:
5	Enabled	Auto/Disabled	Link Down	Enabled
Desc:
6	Enabled	Auto/Disabled	Link Down	Enabled
Desc:
7	Enabled	Auto/Disabled	Link Down	Enabled
Desc:
8	Enabled	Auto/Disabled	Link Down	Enabled
Desc:
9	Enabled	Auto/Disabled	Link Down	Enabled
Desc:
10	Enabled	Auto/Disabled	Link Down	Enabled
Desc:

CTRL+C ESC q Quit SPACE n Next Page p Previous Page r Refresh

25

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Switch CLI Reference Manual

7

PORT SECURITY COMMANDS

The Switch’s port security commands in the Command Line Interface (CLI) are listed (along with the appropriate parameters) in the following table.

Command	Parameters
config port_security ports	[<auth_portlist> | all] {admin_state [enable| disable] |
	max_learning_addr <max_lock_no 0-16> | lock_address_mode
	[DeleteOnTimeout | DeleteOnReset | Permanent]}
delete port_security entry	vlan_name <vlan_name 32> mac_address <macaddr> port
	<auth_port>
clear port_security_entry	port <auth_portlist>
show port_security	{ports <auth_portlist>}
enable port_security trap_log
disable port_security trap_log

Each command is listed, in detail, in the following sections.

config port_security ports

Purpose Used to configure port security settings.

Syntax config port_security ports [<auth_portlist> | all ] {admin_state [enable| disable] | max_learning_addr <max_lock_no 0-16> | lock_address_mode [Permanent | DeleteOnTimeout | DeleteOnReset]}

Description This command allows for the configuration of the port security feature. Only the ports listed in the <auth_portlist> are affected.

Parameters auth_portlist − Specifies a port or range of ports to be configured. all − Configure port security for all ports on the Switch.

admin_state [enable | disable] – Enable or disable port security for the listed ports.

max_learning_addr <max_lock_no 0-16> - Use this to limit the number of MAC addresses dynamically listed in the FDB for the ports.

lock_address_mode [Permanent | DeleteOnTimout | DeleteOnReset] –

Indicates the method of locking addresses. The user has three choices:

Permanent – The locked addresses will not age out after the aging timer expires.

DeleteOnTimeout – The locked addresses will age out after the aging timer expires.

DeleteOnReset – The locked addresses will not age out until the Switch has been reset.

Restrictions Only administrator-level users can issue this command.

Example usage:

To configure the port security:

26