D-Link xStack DES-3526 User manual

©Copyright 2005. All Rights Reserved
CLI Manual
Product Model : xStackTM DES-3526/DES-3526DC
Layer 2 Managed Stackable Fast Ethernet Switch
Release 3.60

Table of Contents
INTRODUCTION .........................................................................................................................1
USING THE CONSOLE CLI ........................................................................................................4
COMMAND SYNTAX ..................................................................................................................8
BASIC SWITCH COMMANDS .................................................................................................. 10
SWITCH PORT COMMANDS ...................................................................................................20
PORT SECURITY COMMANDS ...............................................................................................23
NETWORK MANAGEMENT (SNMP) COMMANDS ................................................................. 26
SWITCH UTILITY COMMANDS................................................................................................45
NETWORK MONITORING COMMANDS..................................................................................53
MULTIPLE SPANNING TREE PROTOCOL (MSTP) COMMANDS..........................................66
FORWARDING DATABASE COMMANDS...............................................................................78
BROADCAST STORM CONTROL COMMANDS .....................................................................85
QOS COMMANDS ....................................................................................................................87
PORT MIRRORING COMMANDS............................................................................................. 94
VLAN COMMANDS...................................................................................................................97
ASYMMETRIC VLAN COMMANDS........................................................................................ 102
LINK AGGREGATION COMMANDS ...................................................................................... 104
IP-MAC BINDING .................................................................................................................... 109
LIMITED IP MULTICAST ADDRESS ...................................................................................... 113
BASIC IP COMMANDS ........................................................................................................... 115

IGMP SNOOPING COMMANDS ............................................................................................. 118
DHCP RELAY.......................................................................................................................... 128
802.1X COMMANDS ............................................................................................................... 134
ACCESS CONTROL LIST (ACL) COMMANDS .....................................................................145
TRAFFIC SEGMENTATION COMMANDS .............................................................................154
TIME AND SNTP COMMANDS............................................................................................... 156
ARP COMMANDS...................................................................................................................162
ROUTING TABLE COMMANDS ............................................................................................. 166
MAC NOTIFICATION COMMANDS........................................................................................ 168
ACCESS AUTHENTICATION CONTROL COMMANDS ........................................................ 172
SSH COMMANDS ...................................................................................................................193
SSL COMMANDS ...................................................................................................................200
D-LINK SINGLE IP MANAGEMENT COMMANDS................................................................. 206
COMMAND HISTORY LIST .................................................................................................... 215
TECHNICAL SPECIFICATIONS ............................................................................................. 218

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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.
DES-3526/DES-3526DC Managed Layer 2 Fast Ethernet switches are members of the D-Link xStack family. Ranging from
10/100Mbps edge switches to core gigabit switches, the xStack switch family has been future-proof designed to provide a stacking
architecture with fault tolerance, flexibility, port density, robust security and maximum throughput with a user-friendly
management interface for the networking professional.
Please take note that if this device was purchased outside of Europe, certain cosmetic differences between the actual switch and
images in this document will be apparent to the reader, such as the faceplate and the manual cover. The DES-3526/DES-3526DC
has already joined the xStack family for the European market and is soon to be xStack converted, universally. Changes are made
to the appearance of the device only and no configuration or internal hardware alterations occur.
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-3526:4#.This is
the command line where all commands are input.

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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 DES-3526 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.
After the Switch reboots and you have logged in, the console looks like this:

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Figure 2-1. Initial Console Screen after logging in
Commands are entered at the command prompt, DES-3526:4#.
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 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.

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