D-Link xStack DES-3800 Series User manual

©Copyright 2005. All rights reserved.
CLI Manual
Product Model: DES-3800 Series
Layer 3 Stackable Fast Ethernet Managed Switch
Release 1

August 2005
651ES3828015G
RECYCLABLE

Table of Contents
INTRODUCTION .........................................................................................................................1
USING THE CONSOLE CLI ........................................................................................................4
COMMAND SYNTAX ..................................................................................................................9
BASIC SWITCH COMMANDS .................................................................................................. 12
SWITCH PORT COMMANDS ...................................................................................................23
PORT SECURITY COMMANDS ...............................................................................................26
NETWORK MANAGEMENT (SNMP) COMMANDS ................................................................. 29
SWITCH UTILITY COMMANDS................................................................................................52
NETWORK MONITORING COMMANDS..................................................................................61
MULTIPLE SPANNING TREE PROTOCOL (MSTP) COMMANDS..........................................74
FORWARDING DATABASE COMMANDS...............................................................................87
BROADCAST STORM CONTROL COMMANDS .....................................................................96
QOS COMMANDS ....................................................................................................................99
PORT MIRRORING COMMANDS........................................................................................... 108
VLAN COMMANDS................................................................................................................. 111
LINK AGGREGATION COMMANDS ...................................................................................... 117
IP-MAC BINDING .................................................................................................................... 123
BASIC IP COMMANDS ........................................................................................................... 127
IGMP COMMANDS ................................................................................................................. 130
IGMP SNOOPING COMMANDS ............................................................................................. 133

DHCP RELAY.......................................................................................................................... 143
802.1X COMMANDS ............................................................................................................... 149
ACCESS CONTROL LIST (ACL) COMMANDS .....................................................................160
CPU PROTECTION COMMANDS .......................................................................................... 183
TRAFFIC SEGMENTATION COMMANDS .............................................................................185
TIME AND SNTP COMMANDS............................................................................................... 187
ARP COMMANDS...................................................................................................................193
VRRP COMMANDS................................................................................................................. 197
ROUTING TABLE COMMANDS ............................................................................................. 204
ROUTE REDISTRIBUTION COMMANDS............................................................................... 208
DNS COMMANDS...................................................................................................................214
RIP COMMANDS ....................................................................................................................218
DVMRP COMMANDS.............................................................................................................. 221
PIM COMMANDS ....................................................................................................................226
IP MULTICASTING COMMANDS ........................................................................................... 230
MD5 COMMANDS ................................................................................................................... 232
OSPF CONFIGURATION COMMANDS.................................................................................. 235
MAC NOTIFICATION COMMANDS........................................................................................ 253
ACCESS AUTHENTICATION CONTROL COMMANDS ........................................................ 257
SSH COMMANDS ...................................................................................................................282
SSL COMMANDS ...................................................................................................................290
JUMBO FRAME COMMANDS................................................................................................ 296

D-LINK SINGLE IP MANAGEMENT COMMANDS................................................................. 298
COMMAND HISTORY LIST .................................................................................................... 309
POE ......................................................................................................................................... 312
MODIFY BANNER AND PROMPT COMMANDS ................................................................... 317
TECHNICAL SPECIFICATIONS ............................................................................................. 320

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1
Introduction
The DES-3800 series is a member of the D-Link xStack switch family. xStack is a complete family of
stackable devices that ranges from edge 10/100Mbps switches to core Gigabit switches. xStack provides
unsurpassed performance, fault tolerance, scalable flexibility, robust security, standard-based
interoperability and an impressive support for 10Gigabit technology to future-proof departmental and
enterprise network deployments with an easy migration path.
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.
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 o refresh the console screen.
Figure 1-1. Initial CLI screen

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There is no initial username or password. Just press the Enter key twice to display the CLI input cursor −
DES-3800:4#.This is the command line where all commands are input.
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. You 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, you 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 zrepresents 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.

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Figure 1-3. Assigning an IP Address
In the above example, the Switch was assigned an IP address of 10.41.44.254 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.

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2
Using the Console CLI
The Switch supports 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
You can also access the same functions over a Telnet interface. Once you have set an IP address for your
Switch, you 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.

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After the Switch reboots and you 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-3800:4#.
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.
Figure 2- 2. The ? Command
When you enter a command without its required parameters, the CLI will prompt you with a Next
possible completions: message.

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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 you 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, you 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.
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

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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. Available Commands
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 you enter the show command with no additional parameters, the CLI will then display all
of the possible next parameters.

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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.

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3
Command Syntax
The following symbols are used to describe how command entries are made and values and arguments are
specified in this manual. The online help contained in the CLI and available through the console interface
uses the same syntax.
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 create ipif <ipif_name> vlan <vlan_name 32> ipaddress
<network_address>
Description In the above syntax example, you must supply an IP interface name
in the <ipif_name> 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
Command
create ipif Engineering vlan Design ipaddress
10.24.22.5/255.0.0.0
[square brackets]
Purpose Encloses a required value or set of required arguments. One value
or argument can be specified.
Syntax create account [admin | user]
Description In the above syntax example, you must specify either an admin or a
user level account to be created. Do not type the square brackets.
Example
Command
create account admin
| vertical bar
Purpose Separates two or more mutually exclusive items in a list, one of
which must be entered.
Syntax show snmp [community | detail]
Description In the above syntax example, you must specify either community,
or detail. Do not type the backslash.
Example
Command
show snmp community

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

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displayed.
r Refreshes the pages currently displayed.
a Displays the remaining pages without pausing between pages.
Enter Displays the next line or table entry.

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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>
show account
delete account <username>
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
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 15>
user <username 15>
Restrictions Only Administrator-level users can issue this command.
Usernames can be between 1 and 15 characters.

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create account
Passwords can be between 0 and 15 characters.
Example usage:
To create an administrator-level user account with the username “dlink”.
DES-3800:4#create account admin dlink
Command: create account admin dlink
Enter a case-sensitive new password:****
Enter the new password again for confirmation:****
Success.
DES-3800:4#
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-3800:4#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-3800:4#
show account
Purpose Used to display user accounts
Syntax show account

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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:
DES-3800:4#show account
Command: show account
Current Accounts:
Username Access Level
--------------- ------------
dlink Admin
Total Entries: 1
DES-3800:4#
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-3800:4#delete account System
Command: delete account System
Success.
DES-3800:4#
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
th ti th d i i d

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show session
the time the command is issued.
Parameters None
Restrictions None.
Example usage:
To display the way that the users logged in:
DES-3800:4#show session
Command: show session
ID Login Time Live Time From Level Name
-- ------------------------------ --------- ------------ ----- -----------
*8 00000 days 00:00:37 03:36:27 Serial Port 4 Anonymous
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-3800:4#show switch
Command: show switch
Device Type : DES-3828 PoE Fast-Ethernet Switch
Combo Port Type : 1000Base-T + 1000Base-T
MAC Address : 00-10-20-33-45-00
IP Address : 10.58.44.77 (Manual)
VLAN Name : default
Subnet Mask : 255.0.0.0
Default Gateway : 0.0.0.0
Boot PROM Version : Build 0.00.006
Firmware Version : Build 1.00.B18
Hardware Version : 0A1
Device S/N :
Power Status : Main - Normal, Redundant - Not Present
System Name :
System Location :
System Contact :
Spanning Tree : Disabled
GVRP : Disabled