D-Link DES-2108 User manual

DES-2108
8-port 10/100
Fast Ethernet Switch
User’s Guide
2007/6/13

CE Mark Warning
This is a Class B product. In a domestic environment, this product
may cause radio interference in which case the user may be required
to take adequate measures.
Warnung!
Dies ist ein Produkt der Klasse B. Im Wohnbereich kann dieses
Produkt Funkstoerungen verursachen. In diesem Fall kann vom
Benutzer verlangt werden, angemessene Massnahmen zu ergreifen.
Precaución!
Este es un producto de Clase B. En un entorno doméstico, puede
causar interferencias de radio, en cuyo case, puede requerirse al
usuario para que adopte las medidas adecuadas.
Attention!
Ceci est un produit de classe B. Dans un environnement domestique,
ce produit pourrait causer des interférences radio, auquel cas
l`utilisateur devrait prendre les mesures adéquates.
Attenzione!
Il presente prodotto appartiene alla classe B. Se utilizzato in ambiente
domestico il prodotto può causare interferenze radio, nel cui caso è
possibile che l`utente debba assumere provvedimenti adeguati.

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TABLE OF CONTENTS
About This Guide ................................................................................1
Terms 1
Overview of this User’s Guide1
Introduction..........................................................................................2
Fast Ethernet Technology 2
Switching Technology 2
Switch Description 3
Features 4
Ports 5
Unpacking and Setup...........................................................................6
Unpacking 6
Setup 6
Mounting the Switch on aWall 7
Power on 8
Identifying External Components........................................................8
Front Panel Components 8
Rear Panel 9
LED Indicators 9
Power and CPU LEDs 10
10/100M Fast Ethernet Ports Status LEDs 10

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Introduction To Switch Management ................................................10
Management Options11
SmartConsole Utility 11
Web-based Management Interface 11
Command Line Interface (CLI) 11
SNMP-Based Management 12
Configuration The Switch..................................................................12
SmartConsole Utility 12
Installing SmartConsole Utility..........................................12
Discovered Devices ...........................................................13
Monitor List.......................................................................14
Device Setting....................................................................16
Toolbar...............................................................................18
Configuring the Switch using Web Browsers 19
Login to Web Manager......................................................20
Setup Menu........................................................................22
System > System Setting....................................................22
System > Trap Setting........................................................24
System > Port Setting.........................................................25
System > SNMP Setting ....................................................26
System > Password Access Control...................................28
System > Syslog.................................................................28

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System > SNTP Settings....................................................29
Configuration > 802.1Q VLAN.........................................30
Configuration > Trunk.......................................................32
Configuration > IGMP Snooping.......................................33
Configuration > 802.1D Spanning Tree.............................36
Configuration > Port Mirroring .........................................38
QoS > 802.1p Default Priority...........................................39
Security > Trusted Host.....................................................39
Security > Storm Control...................................................40
Security > Bandwidth Control...........................................40
Security > 802.1x Settings.................................................41
Security > MAC Address Table > Static MAC .................43
Security > MAC Address Table > Dynamic Forwarding
Table ..................................................................................44
Monitoring > Statistics.......................................................45
Configuring the Switch using the CLI 46
IP Address of the Switch....................................................46
Using the CLI via Telnet interface.....................................47
Command Syntax...............................................................48
Basic Switch Commands ...................................................49
Basic IP Commands...........................................................56
Switch Port Commands......................................................57

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VLAN Commands .............................................................61
Port Mirroring Commands.................................................64
Trap Commands.................................................................67
Spanning Tree Commands.................................................72
SNMP Commands .............................................................77
IGMP Snooping Commands..............................................83
Static MAC Commands.....................................................91
Trusted Host Commands....................................................95
Trunk Commands...............................................................97
SNTP Commands...............................................................99
System Log Commands ...................................................106
802.1x Commands ...........................................................110
Technical Specifications..................................................................117

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ABOUT THIS GUIDE
This user’s guide will show you how to install your DES-2108, and
how to connect it to your network.
Terms
For simplicity, this documentation uses the terms “Switch” (first letter
upper case) to refer to the DES-2108, and “switch” (first letter lower
case) to refer to all Ethernet switches, including the DES-2108.
Overview of this User’s Guide
Introduction Describes the Switch and its features.
Unpacking and
Setup Helps you get started with the basic
installation of the Switch.
Identifying
External
Components
Describes the front panel, rear panel, and
LED indicators of the Switch.
Configuration the
Switch Show how to configure the management functions of the Switch.
Technical
Specification Lists the technical specifications of the Switch.

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INTRODUCTION
This section describes the features of the DES-2108, as well as giving
some background information about Fast Ethernet and Switching
technology.
Fast Ethernet Technology
The growing importance of LANs and the increasing complexity of
desktop computing applications are fueling the need for high
performance networks. A number of high-speed LAN technologies
are proposed to provide greater bandwidth and improve client/server
response times. Among them, Fast Ethernet, or 100BASE-T, provides
a non-disruptive, smooth evolution from 10BASE-T technology.
100Mbps Fast Ethernet is a standard specified by the IEEE 802.3
LAN committee. It is an extension of the 10Mbps Ethernet standard
with the ability to transmit and receive data at 100Mbps, while
maintaining the Carrier Sense Multiple Access with Collision
Detection (CSMA/CD) Ethernet protocol.
Switching Technology
Another key development pushing the limits of Ethernet technology is
in the field of switching technology. A switch bridges Ethernet
packets at the MAC address level of the Ethernet protocol transmitting
among connected Ethernet or Fast Ethernet LAN segments. Switching
is a cost-effective way of increasing the total network capacity
available to users on a local area network. A switch increases capacity
and decreases network loading by making it possible for a local area
network to be divided into different segments, which are not
competing with each other for network transmission capacity, and
therefore decreasing the load on each segment. The Switch acts as a
high-speed selective bridge between the individual segments. Traffic

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that needs to go from one segment to another (from one port to
another) is automatically forwarded by the Switch, without interfering
with any other segments (ports). This allows the total network
capacity to be multiplied, while still maintaining the same network
cabling and adapter cards. For Fast Ethernet or Gigabit Ethernet
networks, a switch is an effective way of eliminating problems of
chaining hubs beyond the "four-repeater limit." A switch can be used
to split parts of the network into different collision domains, for
example, making it possible to expand your Fast Ethernet network
beyond the 205-meter network diameter limit for 100BASE-TX
networks. Switches supporting both traditional 10Mbps Ethernet and
100Mbps Fast Ethernet are also ideal for bridging between existing
10Mbps networks and new 100Mbps networks. Switching LAN
technology is a marked improvement over the previous generation of
network bridges, which were characterized by higher latencies.
Routers have also been used to segment local area networks, but the
cost of a router and the setup and maintenance required make routers
relatively impractical. Today's switches are an ideal solution to most
kinds of local area network congestion problems.
Switch Description
The DES-2108 is equipped with unshielded twisted-pair (UTP) cable
ports providing dedicated 10 or 100 Mbps bandwidth. The Switch has
8 UTP ports and Auto MDI-X/MDI-II convertible ports that can be
used for up-linking to another switch. These ports can be used for
connecting PCs, printers, servers, hubs, routers, switches and other
networking devices. The dual speed ports use standard twisted-pair
cabling and are ideal for segmenting networks into small, connected
sub-networks for superior performance. Each 10/100 port can support
up to 200 Mbps of throughput in full-duplex mode. This stand-alone
Switch enables the network to use some of the most demanding
multimedia and imaging applications concurrently with other user

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applications without creating bottlenecks. The built-in Light-
Management engine can be configure the Switch's settings for priority
queuing, VLANs, and port monitoring, and port speed.
Features
The DES-2108 was designed for easy installation and high
performance in an environment where traffic on the network and the
number of users increase continuously.
The Switch features include:
IEEE 802.3 10BASE-T compliant.
IEEE 802.3u 100BASE-TX compliant.
IEEE 802.3x flow control in full duplex mode.
IEEE 802.1Q VLAN & Port_based VLAN.
IEEE 802.1D Spanning Tree.
Port_based QoS.
System Log Support.
High performance switching engine performs forwarding and
filtering at full wire speed.
Full- & Half- duplex operation for both of 10Mbps and
100Mbps and connections. Full duplex allows the switch port
to simultaneously transmit and receive data. It only works
with connections to full-duplex-capable end stations and
switches.
Non-blocking store and forward switching scheme capability
to support rate adaptation and protocol conversion.
Efficient self-learning and address recognition mechanism
enables forwarding rate at wire speed.
Support port-based enable and disable.
Address table: Supports up to 4K MAC addresses per device.

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Supports a packet buffer of up to 256 Kbytes.
IGMP Snooping support.
SNMP support.
Port Mirror support.
MIB support for:
RFC1213 MIB II.
Private MIB.
Ports
Eight (8) 10/100Mbps 100BASE-TX (Auto MDI-X/MDI-II) ports for
connecting to end stations, servers, hubs and other networking devices.
All UTP ports can auto-negotiate between 10Mbps and 100Mbps,
half-duplex and full duplex, and flow control.

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UNPACKING AND SETUP
This chapter provides unpacking and setup information for the Switch.
Unpacking
Open the shipping carton of the Switch and carefully unpack its
contents. The carton should contain the following items:
One DES-2108 Fast Ethernet Switch
Four rubber feet with adhesive backing
One AC power adapter
Mounting kit
CD-ROM (Including this User’s Guide and Utility)
If any item is found missing or damaged, please contact your local
reseller for replacement.
Setup
The setup of the Switch can be performed using the following steps:
The power outlet should be within 1.82 meters (6 feet) of the
device.
Visually inspect the DC power jack and make sure that it is
fully secured to the power adapter.
Do not cover the ventilation holes on the sides of the Switch,
and make sure there is adequate ventilation around it.
Do not place heavy objects on the switch.

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Mounting the Switch on a Wall
The DES-2108 can also be mounted on a wall. Two mounting slots
are provided on the bottom of the switch for this purpose. Please make
sure that the front panel is exposed in order to view the LEDs. Please
refer to the illustration below.
A.) Mounting on a cement wall
1. Mount the Nylon screw anchors into a cement wall.
2. Drive the T3 x 15L screws into the Nylon screw anchors.
3. Hook the mounting holes of the switch back on the screws; you
have completed the wall-mount.
B.) Mounting on a wood wall
1. Drive the T3 x 15 L screws into the wood wall.
2. Hook the mounting holes of the switch back on the screws; you
have completed the wall-mount.
Figure 1. Mounting on a Wall

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Power on
The DES-2108 can be used with AC power sources 100 - 240 VAC,
50 - 60 Hz. The Switch’s power adapter will adjust to the local power
source automatically.
Plug one end of the DC output into the power jack of the Switch and
the other end into the local power source outlet.
IDENTIFYING EXTERNAL COMPONENTS
This chapter describes the front panel, rear panel and LED indicators
of the Switch
Front Panel Components
The front panel of the Switch consists of Power, CPU and port LED
indicators.
Figure 2. Front panel view
LED Indicators: Comprehensive LED indicators that display the
conditions of the Switch and status of the network. A description of
these LED indicators follows (see LED Indicators).

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Rear Panel
The rear panel of the Switch contains an DC power phone jack, eight
(8) 10/100Mbps Fast Ethernet ports and Reset button.
Figure 3. Rear panel view
RJ-45: Eight 10/100Mbps Fast Ethernet ports.
Reset: The Reset button is to reset all the setting back to the factory
default.
Note: Be sure that you recorded the setting of your device, else all
the setting will be erased when pressing the “Reset” button.
DC Power Jack: Power is supplied through an external DC power
adapter. Check the technical specification section for information
about the DC power input voltage.
DES-2108 does not include a power button, plugging its power
adapter into a power outlet will immediately power it on.
LED Indicators
The LED indicators of the Switch include Power, CPU and Port
Status LEDs. The following shows the LED indicators for the Switch
along with an explanation of each indicator.

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Figure 4. LED indicators
Power and CPU LEDs
Power
On :
This LED will light green after the Switch is powered on to
indicate the ready state of the device.
Off :
When the switch powered off or the power adapter has improper
connection.
CPU
Blinking :
When the CPU is working, the CPU LED is blinking.
On/Off :
The CPU is not working.
10/100M Fast Ethernet Ports Status LEDs
Link/Act
On :
When the Link/Act LED lights on, the respective port is
successfully connected to an Ethernet network.
Blinking : When the Link/Act LED is blinking, the port is transmitting or
receiving data on the Ethernet network.
Off :
No link.
100M
On :
When the 100Mbps LED lights on, the respective port is
connected to a 100Mbps Fast Ethernet network.
Off :
When the respective port is connected to a 10Mbps Ethernet
network
INTRODUCTION TO SWITCH MANAGEMENT
Management Options
Web Management Utility

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Web-based Management Interface
Command Line Interface (CLI)
SNMP-Based Management Managing
Management Options
This system may be managed in-band using TCP/IP Telnet protocol
and web-based management, accessible through a web browser.
SmartConsole Utility
With the SmartConsole Utility, you can easily discover all the Web
Management Switch, assign the IP Address, change the password and
upgrade to new firmware.
Web-based Management Interface
After you have successfully installed the Switch, you can configure
the Switch, display statistics using a web browser, such as Netscape
Navigator (version 6.2 and higher) or Microsoft® Internet Explorer
(version 5.0).
Command Line Interface (CLI)
The Switch supports a Command Line Interface (CLI) that allows the
user to connect to the Switch’s management agent using the TCP/IP
Telnet protocol.

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SNMP-Based Management
You can manage the Switch with an SNMP-compatible console
program. The Switch supports SNMP version 1.0. The SNMP agent
decodes the incoming SNMP messages and responds to requests with
MIB objects stored in the database. The SNMP agent updates the MIB
objects to generate statistics and counters.
CONFIGURATION THE SWITCH
Through the Web Browser, Telnet and SNMP you can configure the
Switch such as Port setting, VLAN, QoS, SNMP, Spanning Tree…
etc.
SmartConsole Utility
With the included Web Management Utility, you can easily discover
all the Web Management Switch, assign the IP Address, change the
password and upgrade to new firmware.
Installing SmartConsole Utility
The following gives instructions guiding you through the installations
of the SmartConsole utility.
Insert the Utility CD in the CD-Rom Drive.
From the Start menu on the Windows desktop, choose Run.
In the Run dialog box, type D:\SmartConsole Utility\setup.exe (D:\
depends where your CD-Rom drive is located) and click OK.
Follow the on-screen instructions to install the utility.
Upon completion, go to Program Files -> SmartConsole_Utility and
execute the SmartConsole utility. (Figure 5.)

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Figure 5. SmartConsole Utility
The SmartConsole Utility was divided into four parts, Discovery List,
Monitor List, Device Setting and Toolbar function, for details
instruction, follow the below section.
Discovered Devices
This is the list where you can discover all the Web management
devices in the entire network.
By pressing the “Discover” button, you can list all the Web
Management devices in the discovery list.
Double click or press the “Add to monitor list” button to select a
device from the Discovery List to the Monitor List.
System word definitions in the Discovery List:
MAC Address: Shows the device MAC Address.

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IP Address: Shows the current IP address of the device.
Protocol version: Shows the version of the Utility protocol.
Product Name: Shows the device product name.
System Name: Shows the appointed device system name.
DHCP: Shows whether the switch’s DHCP is Enabled or
Disabled.
Location: Shows where the device is located.
Trap IP: Shows the IP where the Trap to be sent.
Subnet Mask: Shows the Subnet Mask set of the device.
Gateway: Shows the Gateway set of the device.
Group Interval: Shows the time that the switch will be
discovered in the SmartConsole Utility List.
Monitor List
All the Web Smart Device in the Monitor List can be monitored; you
can also receive the trap and show the status of the device.
System word definitions in the Monitor List:
S: Shows the system symbol of the Web-Smart device,
represents the device system is down.
IP Address: Shows the current IP address of the device.
MAC Address: Shows the device MAC Address.
Protocol version: Shows the version of the Utility protocol.
Product Name: Shows the device product name.
System Name: Shows the appointed device system name.
DHCP: Shows whether the switch’s DHCP is Enabled or
Disabled.
Location: Shows where the device is located.
Trap IP: Shows the IP where the Trap to be sent.
Subnet Mask: Shows the Subnet Mask set of the device.