D-Link DES-2108 User manual

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

FCC Warning
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with this
user’s guide, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct
the interference at his own expense.
CE Mark Warning
This is a Class A product. In a domestic environment, this product
may cause radio interference in which case the user may be required
to take adequate measures.
VCCI Warning

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TABLE OF CONTENTS
About This Guide ................................................................................ 1
Terms ........................................................................................... 1
Overview of this User’s Guide .................................................... 1
Introduction.......................................................................................... 2
Fast Ethernet Technology ............................................................ 2
Switching Technology ................................................................. 2
Switch Description....................................................................... 4
Features........................................................................................ 4
Ports ............................................................................................. 5
Unpacking and Setup........................................................................... 7
Unpacking.................................................................................... 7
Setup ............................................................................................ 7
Installing the Switch on a Desktop .............................................. 8
Installing the Switch on a Rack ................................................... 9
Power on .................................................................................... 10
Identifying External Components...................................................... 11
Front Panel Components............................................................ 11
Rear Panel .................................................................................. 12
LED Indicators........................................................................... 12

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Power and CPU LEDs ............................................................... 13
10/100M Fast Ethernet Ports Status LEDs ................................ 13
Introduction To Switch Management ................................................ 15
Management Options ................................................................. 15
Web Management Utility........................................................... 15
Web-based Management Interface............................................. 15
Command Line Interface (CLI) ................................................. 16
SNMP-Based Management........................................................ 16
Configuration The Switch.................................................................. 17
Web Management Utility........................................................... 17
Installing the Web Management Utility............................. 17
Discovery List.................................................................... 18
Monitor List ....................................................................... 19
Device Setting.................................................................... 21
Toolbar............................................................................... 23
Configuring the Switch using Web Browser ............................. 24
Login to Web Manager ...................................................... 25
Setup Menu ........................................................................ 28
Configuring Setup Setting.................................................. 29
VLAN Settings (Virtual Local Area Network).................. 31

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Mirror Setting .................................................................... 33
Spanning Tree Setting........................................................ 34
SNMP Setting .................................................................... 36
Static MAC ........................................................................ 42
IGMP Snooping Setting..................................................... 45
Device Status ..................................................................... 47
Statistic............................................................................... 48
System Setting ................................................................... 49
Trap Setting........................................................................ 50
Set Password ...................................................................... 51
Backup Setting................................................................... 52
Reset Setting ...................................................................... 52
Logout................................................................................ 53
Configuring the Switch using the CLI ....................................... 54
IP Address of the Switch.................................................... 54
Using the CLI via Telnet interface..................................... 55
Command Syntax............................................................... 56
Basic Switch Commands ................................................... 57
Basic IP Commands........................................................... 63
Switch Port Commands...................................................... 65

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VLAN Commands ............................................................. 68
Port Mirroring Commands................................................. 77
Trap Commands................................................................. 80
Spanning Tree Commands................................................. 85
SNMP Commands ............................................................. 92
IGMP Snooping Commands ............................................ 100
Technical Specifications .................................................................. 106

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ABOUT THIS GUIDE
This user’s guide tells you how to install your DES-2108, 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 Tell to how to configuration 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

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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
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 "two-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.

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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
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.