D-Link DES-3624 - Switch - Stackable User manual

DES-3624 Series
Stackable NWay Ethernet Switch
User’s Guide
Second Edition (April, 2000)
6DES3624..02
Printed In Taiwan
RECYCLABLE

Wichtige Sicherheitshinweise
1. Bitte lesen Sie sich diese Hinweise sorgfältig durch.
2. Heben Sie diese Anleitung für den spätern Gebrauch auf.
3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes
Tuch zur Reinigung.
4. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind.
5. Das Gerät is vor Feuchtigkeit zu schützen.
6. Bei der Aufstellung des Gerätes ist auf sichern Stand zu achten. Ein Kippen oder Fallen könnte Verletzungen hervorrufen. Verwenden Sie nur sichere
Standorte und beachten Sie die Aufstellhinweise des Herstellers.
7. Die Belüftungsöffnungen dienen zur Luftzirkulation die das Gerät vor Überhitzung schützt. Sorgen Sie dafür, daß diese Öffnungen nicht abgedeckt
werden.
8. Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.
9. Die Netzanschlußsteckdose muß aus Gründen der elektrischen Sicherheit einen Schutzleiterkontakt haben.
10. Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollete auch nichts auf der Leitung abgestellt werden.
11. Alle Hinweise und Warnungen die sich am Geräten befinden sind zu beachten.
12. Wird das Gerät über einen längeren Zeitraum nicht benutzt, sollten Sie es vom Stromnetz trennen. Somit wird im Falle einer Überspannung eine
Beschädigung vermieden.
13. Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das Gerät gelangen. Dies könnte einen Brand bzw. Elektrischen Schlag
auslösen.
14. Öffnen Sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit nur von authorisiertem Servicepersonal geöffnet werden.
15. Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von einer qualifizierten Servicestelle zu überprüfen:
a – Netzkabel oder Netzstecker sint beschädigt.
b – Flüssigkeit ist in das Gerät eingedrungen.
c – Das Gerät war Feuchtigkeit ausgesetzt.
d – Wenn das Gerät nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen.
e – Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt.
f – Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.
16. Bei Reparaturen dürfen nur Orginalersatzteile bzw. den Orginalteilen entsprechende Teile verwendet werden. Der Einsatz von ungeeigneten
Ersatzteilen kann eine weitere Beschädigung hervorrufen.
17. Wenden Sie sich mit allen Fragen die Service und Repartur betreffen an Ihren Servicepartner. Somit stellen Sie die Betriebssicherheit des Gerätes
sicher.
18. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden, Für einen Nennstrom bis 6A und einem Gerätegewicht grßer 3kg ist eine
Leitung nicht leichter als H05VV-F, 3G, 0.75mm2 einzusetzen.

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LINK'S PRODUCTS
D-LINK SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN
THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY THE CUSTOMER'S OR ANY THIRD PERSON'S MISUSE, NEGLECT, IMPROPER
INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE,
OR BY ACCIDENT, FIRE, LIGHTNING OR OTHER HAZARD.
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Limited Warranty
Hardware:
D-Link warrants each of its hardware products to be free from defects in workmanship and materials under normal use and service for a period commencing
on the date of purchase from D-Link or its Authorized Reseller and extending for the length of time stipulated by the Authorized Reseller or D-Link Branch
Office nearest to the place of purchase.
This Warranty applies on the condition that the product Registration Card is filled out and returned to a D-Link office within ninety (90) days of purchase. A
list of D-Link offices is provided at the back of this manual, together with a copy of the Registration Card.
If the product proves defective within the applicable warranty period, D-Link will provide repair or replacement of the product. D-Link shall have the sole
discretion whether to repair or replace, and replacement product may be new or reconditioned. Replacement product shall be of equivalent or better
specifications, relative to the defective product, but need not be identical. Any product or part repaired by D-Link pursuant to this warranty shall have a
warranty period of not less than 90 days, from date of such repair, irrespective of any earlier expiration of original warranty period. When D-Link provides
replacement, then the defective product becomes the property of D-Link.
Warranty service may be obtained by contacting a D-Link office within the applicable warranty period, and requesting a Return Material Authorization (RMA)
number. If a Registration Card for the product in question has not been returned to D-Link, then a proof of purchase (such as a copy of the dated purchase
invoice) must be provided. If Purchaser's circumstances require special handling of warranty correction, then at the time of requesting RMA number,
Purchaser may also propose special procedure as may be suitable to the case.
After an RMA number is issued, the defective product must be packaged securely in the original or other suitable shipping package to ensure that it will not
be damaged in transit, and the RMA number must be prominently marked on the outside of the package. The package must be mailed or otherwise shipped to
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Purchaser contained in, stored on, or integrated with any product returned to D-Link pursuant to this warranty.
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right in such a case to levy a reasonable handling charge in addition mailing or shipping costs.
Software:
Warranty service for software products may be obtained by contacting a D-Link office within the applicable warranty period. A list of D-Link offices is
provided at the back of this manual, together with a copy of the Registration Card. If a Registration Card for the product in question has not been returned to
a D-Link office, then a proof of purchase (such as a copy of the dated purchase invoice) must be provided when requesting warranty service. The term
"purchase" in this software warranty refers to the purchase transaction and resulting license to use such software.
D-Link warrants that its software products will perform in substantial conformance with the applicable product documentation provided by D-Link with such
software product, for a period of ninety (90) days from the date of purchase from D-Link or its Authorized Reseller. D-Link warrants the magnetic media, on
which D-Link provides its software product, against failure during the same warranty period. This warranty applies to purchased software, and to
replacement software provided by D-Link pursuant to this warranty, but shall not apply to any update or replacement which may be provided for download via
the Internet, or to any update which may otherwise be provided free of charge.
D-Link's sole obligation under this software warranty shall be to replace any defective software product with product which substantially conforms to D-Link's
applicable product documentation. Purchaser assumes responsibility for the selection of appropriate application and system/platform software and associated
reference materials. D-Link makes no warranty that its software products will work in combination with any hardware, or any application or system/platform
software product provided by any third party, excepting only such products as are expressly represented, in D-Link's applicable product documentation as
being compatible. D-Link's obligation under this warranty shall be a reasonable effort to provide compatibility, but D-Link shall have no obligation to provide
compatibility when there is fault in the third-party hardware or software. D-Link makes no warranty that operation of its software products will be
uninterrupted or absolutely error-free, and no warranty that all defects in the software product, within or without the scope of D-Link's applicable product
documentation, will be corrected.
D-Link Offices for Registration and Warranty Service
The product's Registration Card, provided at the back of this manual, must be sent to a D-Link office. To obtain an RMA number for warranty service as to a
hardware product, or to obtain warranty service as to a software product, contact the D-Link office nearest you. An address/telephone/fax/e-mail/Web site list
of D-Link offices is provided in the back of this manual.
Trademarks

Copyright 2000 D-Link Corporation.
Contents subject to change without prior notice.
D-Link is a registered trademark of D-Link Corporation/D-Link Systems, Inc. All other trademarks belong to their
respective proprietors.
Copyright Statement
No part of this publication may be reproduced in any form or by any means or used to make any derivative such as
translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems Inc., as
stipulated by the United States Copyright Act of 1976.
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
BSMI Warning

TABLE OF CONTENTS
0ABOUT THIS GUIDE............................................................................................................................................. 10
CONVENTIONS................................................................................................................................................................ 10
OVERVIEW OF THIS USER’S GUIDE ................................................................................................................................. 10
1INTRODUCTION.................................................................................................................................................... 11
FAST ETHERNET TECHNOLOGY ...................................................................................................................................... 11
GIGABIT ETHERNET TECHNOLOGY................................................................................................................................. 11
SWITCHING TECHNOLOGY.............................................................................................................................................. 12
FEATURES ...................................................................................................................................................................... 12
Ports........................................................................................................................................................................... 12
Performance features................................................................................................................................................. 13
Management............................................................................................................................................................... 13
2UNPACKING AND SETUP.................................................................................................................................... 14
UNPACKING.................................................................................................................................................................... 14
SETUP............................................................................................................................................................................. 14
DESKTOP OR SHELF INSTALLATION ................................................................................................................................14
RACK INSTALLATION...................................................................................................................................................... 15
POWER ON..................................................................................................................................................................... 16
Power Failure ............................................................................................................................................................ 16
3IDENTIFYING EXTERNAL COMPONENTS..................................................................................................... 17
FRONT PANEL................................................................................................................................................................. 17
REAR PANEL .................................................................................................................................................................. 18
SIDE PANELS .................................................................................................................................................................. 18
STACK OPERATION......................................................................................................................................................... 19
OPTIONAL PLUG-IN MODULES........................................................................................................................................ 20
100BASE-FX (MT-RJ) Module .................................................................................................................................. 21
100BASE-FX (SC) Module......................................................................................................................................... 21
100BASE-TX Module ................................................................................................................................................. 22
1000BASE-SX Gigabit Module .................................................................................................................................. 22
1000BASE-LX Gigabit Module.................................................................................................................................. 23
1000BASE-T Copper Gigabit Module........................................................................................................................ 23
LED INDICATORS........................................................................................................................................................... 24
4CONNECTING THE SWITCH.............................................................................................................................. 26
SWITCH TO END NODE ................................................................................................................................................... 26
SWITCH TO HUB OR SWITCH........................................................................................................................................... 26
10BASE-T Device....................................................................................................................................................... 27
100BASE-TX Device .................................................................................................................................................. 27
5SWITCH MANAGEMENT CONCEPTS.............................................................................................................. 28
LOCAL CONSOLE MANAGEMENT.................................................................................................................................... 28
Diagnostic (Console) Port (RS-232 DCE) ................................................................................................................. 28
IP ADDRESSES AND SNMP COMMUNITY NAMES .......................................................................................................... 29
TRAPS ............................................................................................................................................................................ 29
MIBS.............................................................................................................................................................................. 30
PACKET FORWARDING.................................................................................................................................................... 30
Aging Time................................................................................................................................................................. 30
Filtering Database ..................................................................................................................................................... 31
SPANNING TREE ALGORITHM ......................................................................................................................................... 31

STA Operation Levels................................................................................................................................................. 32
On the Bridge Level ...................................................................................................................................................................32
On the Port Level .......................................................................................................................................................................32
User-Changeable STA Parameters............................................................................................................................ 32
Illustration of STA...................................................................................................................................................... 33
PORT TRUNKING............................................................................................................................................................. 34
VLAN............................................................................................................................................................................ 35
IEEE 802.1Q VLANs.................................................................................................................................................. 36
VLAN Segmentation..................................................................................................................................................................36
Sharing Resources Across VLANs.............................................................................................................................................36
VLANs Spanning Multiple Switches .........................................................................................................................................37
VLANs Over 802.1Q-compliant Switches.........................................................................................................................38
BROADCAST MANAGEMENT........................................................................................................................................... 38
Broadcast Storms ....................................................................................................................................................... 39
Port-based Broadcast Packet Filter........................................................................................................................... 39
MAC-based Broadcast Packet Filter.......................................................................................................................... 39
6USING THE CONSOLE INTERFACE................................................................................................................. 40
SETTING UP A CONSOLE ................................................................................................................................................ 40
CONNECTING TO THE SWITCH USING TELNET................................................................................................................. 41
CONSOLE USAGE CONVENTIONS .................................................................................................................................... 41
FIRST TIME CONNECTING TO THE SWITCH..................................................................................................................... 41
User Accounts Management....................................................................................................................................... 43
Save Changes............................................................................................................................................................. 44
LOGIN ON THE SWITCH CONSOLE BY REGISTERED USERS ............................................................................................ 45
Create/Modify User Accounts.................................................................................................................................................... 45
View/Delete User Accounts........................................................................................................................................................47
SETTING UP THE SWITCH ............................................................................................................................................... 48
System Configuration................................................................................................................................................. 48
Configure IP Address.................................................................................................................................................................49
Configure Console......................................................................................................................................................................51
Configure Switch Stack.............................................................................................................................................................. 52
Information of Individual Switch Unit.................................................................................................................................53
Advance Settings.................................................................................................................................................................54
Configure Port............................................................................................................................................................................55
Configure Trunk.........................................................................................................................................................................57
Configure Port Mirroring ...........................................................................................................................................................59
Configure Spanning Tree Protocol.............................................................................................................................................59
STP Parameter Settings .....................................................................................................................................................60
STP Custom Settings ..........................................................................................................................................................62
Configure Filtering and Forwarding Table.................................................................................................................................63
Configure Static Forwarding Table Entry..........................................................................................................................65
Configure MAC Address Filtering......................................................................................................................................66
Configure Permanent Multicast Filtering...........................................................................................................................67
Configure IGMP....................................................................................................................................................................67
Configure VLANs & MAC-based Broadcast Domains..............................................................................................................71
Configure MAC-Based Broadcast Domains.....................................................................................................................72
Configure IEEE 802.1Q VLANs .........................................................................................................................................76
Update Firmware and Configuration Files................................................................................................................ 81
Special Note Concerning Firmware Updates..............................................................................................................................83
System Utilities........................................................................................................................................................... 83
Ping Test.....................................................................................................................................................................................84
Save Settings to TFTP Server.....................................................................................................................................................84
Save Switch History to TFTP Server..........................................................................................................................................85
Clear Address Table ...................................................................................................................................................................86
Community Strings and Trap Stations........................................................................................................................ 86
SWITCH MONITORING..................................................................................................................................................... 88
Network Monitoring................................................................................................................................................... 88
Traffic Statistics.......................................................................................................................................................................... 89
Port Utilization.......................................................................................................................................................................89
Port Traffic Statistics............................................................................................................................................................ 90
Port Packet Error Statistics.................................................................................................................................................92

Port Packet Analysis Statistics...........................................................................................................................................93
Browse Address Table................................................................................................................................................................94
Switch History............................................................................................................................................................................ 95
Browse IGMP Status..................................................................................................................................................................96
RESETTING THE SWITCH ................................................................................................................................................. 98
Restart System............................................................................................................................................................ 98
Factory Reset.............................................................................................................................................................. 98
Logout ........................................................................................................................................................................ 99
7WEB-BASED NETWORK MANAGEMENT..................................................................................................... 100
INTRODUCTION............................................................................................................................................................. 100
GETTING STARTED ....................................................................................................................................................... 100
MANAGEMENT ............................................................................................................................................................. 100
Configuration........................................................................................................................................................... 101
IP Address................................................................................................................................................................................101
Switch.......................................................................................................................................................................................102
Advanced.............................................................................................................................................................................104
Switch Unit ..........................................................................................................................................................................105
Port...........................................................................................................................................................................................106
Port Trunk ................................................................................................................................................................................107
Port Mirroring .......................................................................................................................................................................... 108
Spanning Tree Protocol............................................................................................................................................................109
STP Parameters Setting ...................................................................................................................................................109
STP Custom Setting ..........................................................................................................................................................110
Forwarding and Filtering.......................................................................................................................................................... 111
Static Forwarding Table....................................................................................................................................................112
MAC Address Filtering Table............................................................................................................................................114
Permanent Multicast Filtering...........................................................................................................................................116
IGMP........................................................................................................................................................................................117
IGMP Settings.....................................................................................................................................................................118
802.1Q IGMP......................................................................................................................................................................119
VLANs & MAC-based Broadcast Domains............................................................................................................................. 120
MAC-Based Broadcast Domains.....................................................................................................................................121
IEEE 802.1Q VLANs.......................................................................................................................................................... 126
Management............................................................................................................................................................. 129
Community Strings and Trap Stations......................................................................................................................................130
User Account............................................................................................................................................................................131
Console.....................................................................................................................................................................................133
Monitoring................................................................................................................................................................ 134
Switch Overview ......................................................................................................................................................................134
Port Utilization.........................................................................................................................................................................135
Port Traffic Statistics................................................................................................................................................................ 136
Port Error Packet Statistics.......................................................................................................................................................137
Port Packet Analysis Statistics..................................................................................................................................................139
Browse Address Table..............................................................................................................................................................140
Browse IGMP Status................................................................................................................................................................141
Switch History.......................................................................................................................................................................... 142
Maintenance............................................................................................................................................................. 142
Firmware and Configuration Update........................................................................................................................................143
Save Settings To TFTP Server..................................................................................................................................................144
Save Switch History To TFTP Server.......................................................................................................................................145
Save Changes............................................................................................................................................................................146
Factory Reset............................................................................................................................................................................147
Restart System..........................................................................................................................................................................148
8TECHNICAL SPECIFICATIONS....................................................................................................................... 149
9RJ-45 PIN SPECIFICATION............................................................................................................................... 152
10 SAMPLE CONFIGURATION FILE................................................................................................................ 154
Commands:............................................................................................................................................................................... 154
Notes about the Configuration File: .........................................................................................................................................154

11 RUNTIME SOFTWARE DEFAULT SETTINGS........................................................................................... 156
12 INDEX.................................................................................................................................................................. 157

Stackable NWay Ethernet Switch User’s Guide
10 About This Guide
0 ABOUT THIS GUIDE
This User’s Guide tells you how to install your Stackable NWay Ethernet Switch, how to connect it to your
Ethernet network, and how to set its configuration using either the built-in console interface or Web-based
management (please note that Netscape Communicator/Navigator, 4.x or later, or Microsoft Internet
Explorer, 4.x or later, are recommended).
Conventions
References in this manual to the DES-3624 Series are frequently written simply as “Switch” or “Switches”
where the text applies to all models. Model numbers are normally used only to differentiate among specific
Switches where necessary.
Unless differentiated by model number, all information applies to all models.
Overview of this User’s Guide
♦Chapter 1, Introduction. Describes the Switch and its features.
♦Chapter 2, Unpacking and Setup. Helps you get started with the basic installation of the Switch.
♦Chapter 3, Identifying External Components. Describes the front panel, rear panel, optional plug-in
modules, and LED indicators of the Switch.
♦Chapter 4, Connecting the Switch. Tells how you can connect the Switch to your Ethernet network.
♦Chapter 5, Switch Management Concepts. Talks about Local Console Management via the RS-232 DCE
console port and other aspects about how to manage the Switch.
♦Chapter 6, Using the Console Interface. Tells how to use the built-in console interface to change, set, and
monitor Switch performance and security.
♦Chapter 7, Web-Based Network Management. Tells how to manage the Switch through an Internet
browser.
♦Appendix A, Technical Specifications. Lists the technical specifications of the Switch.
♦Appendix B, RJ-45 Pin Specifications. Shows the details and pin assignments for the RJ-45
receptacle/connector.
♦Appendix C, Sample Configuration File.
♦Appendix D, Runtime Software Default Settings.

Stackable NWay Ethernet Switch User’s Guide
Introduction 11
1
1 INTRODUCTION
This section describes the features of the Switch, as well as giving some background information about
Ethernet/Fast Ethernet, Gigabit 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 the current 10BASE-T technology. The dominating market
position virtually guarantees cost effective and high performance Fast Ethernet solutions in the years to
come.
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.
Gigabit Ethernet Technology
Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and
support for CSMA/CD protocol, full duplex, flow control, and management objects, but with a tenfold increase
in theoretical throughput over 100Mbps Fast Ethernet and a one hundred-fold increase over 10Mbps
Ethernet. Since it is compatible with all 10Mbps and 100Mbps Ethernet environments, Gigabit Ethernet
provides a straightforward upgrade without wasting a company’s existing investment in hardware, software,
and trained personnel.
The increased speed and extra bandwidth offered by Gigabit Ethernet is essential to coping with the network
bottlenecks that frequently develop as computers and their busses get faster and more users use applications
that generate more traffic. Upgrading key components, such as your backbone and servers to Gigabit Ethernet
can greatly improve network response times as well as significantly speed up the traffic between your subnets.
Gigabit Ethernet enables fast optical fiber connections to support video conferencing, complex imaging, and
similar data-intensive applications. Likewise, since data transfers occur 10 times faster than Fast Ethernet,
servers outfitted with Gigabit Ethernet NIC’s are able to perform 10 times the number of operations in the
same amount of time.
In addition, the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost-effective method to
take advantage of today and tomorrow’s rapidly improving switching and routing internetworking
technologies. And with expected advances in the coming years in silicon technology and digital signal
processing that will enable Gigabit Ethernet to eventually operate over unshielded twisted-pair (UTP) cabling,
outfitting your network with a powerful 1000Mbps-capable backbone/server connection creates a flexible
foundation for the next generation of network technology products.

Stackable NWay Ethernet Switch User’s Guide
12 Introduction
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, Fast Ethernet, or Gigabit 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 don’t compete with each other for network transmission
capacity, giving a decreased load on each.
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.
Features
The DES-3624 series of Switches can include one master (DES-3624I, DES-3624iF, or DES-3624iFM) and up
to three clients (DES-3624, DES-3624F, or DES-3624FM). They are designed for easy installation and high
performance in an environment where traffic on the network and the number of users increases continuously.
Switch features include:
Ports
♦20 high performance NWay ports all operating at 10/100 Mbps for connection to servers and hubs (19
ports 10/100 fixed Ethernet TP interface and one MDI-II/MDI-Xjack connection are supported) (DES-
3624I, DES-3624iF, and DES-3624iFM) or 22 high performance NWay ports all operating at 10/100
Mbps for connection to servers and hubs (20 ports 10/100 fixed Ethernet TP interface and two MDI-
II/MDI-Xjack connections are supported) (DES-3624, DES-3624F, and DES-3624FM).
♦All ports can be auto-negotiated between 10Mbps/100Mbps, half-or full-duplex connections.
♦Gigabit uplink/MDI-II (media dependent interface) slide-in module in the rear panel for uplink to
another Switch. One-port or two-port models are available (DES-3624i, DES-3624iF, and DES-3624iFM
only).
♦RS-232 DCE console port for diagnosing the Switch via a connection to a PC and Console/Out-of-band
management (DES-3624i, DES-3624iF, or DES-3624iFM only).

Stackable NWay Ethernet Switch User’s Guide
Introduction 13
♦One slide-in module interface in the front panel for 1 or 2 ports 10/100M Ethernet connection. Three
optional modules are available: 2-port TX, 2-port FX (MT-RJ), and 1-port FX (SC).
♦Stacking Input/Output port slide-in module in the rear panel for stacking to another device to
implement a high-port count, manageable switch. Three-port module for master device and one-port
module for a client device.
Performance features
♦Store and forward switching scheme capability to support rate adaptation and protocol conversion.
♦Full- and half-duplex for 10Mbps and 100Mbps connections. The optional 1000BASE-SX and
1000BASE-LX modules operate at full-duplex only. The optional 1000BASE-T module, however, can be
negotiated to 1000M/half.
♦Auto polarity detection and correction of incorrect polarity on the receive twisted pair at each port.
♦Data forwarding rate 14,880 pps per port at 100% of wire-speed for 10Mbps speed.
♦Data forwarding rate 148,800 pps per port at 100% of wire-speed for 100Mbps speed.
♦Data forwarding rate 1,488,100 pps per port at 100% of wire-speed for 1000Mbps speed.
♦Data filtering rate eliminates all error packets, runts, etc. at 14,880 pps per port at 100% of wire-speed
for 10Mbps speed.
♦Data filtering rate eliminates all error packets, runts, etc. at 148,800 pps per port at 100% of wire-speed
for 100Mbps speed.
♦Data filtering rate eliminates all error packets, runts, etc. at 1,488,100 pps per port at 100% of wire-
speed for 1000Mbps speed.
♦12K active MAC address entry table per device with automatic learning and aging (10 to 9999 seconds).
♦12 MB packet buffer per device.
♦Supports Broadcast Storm filtering.
♦Supports IGMP Multicast snooping.
Management
♦RS-232 console port for out-of-band network management via a console terminal or PC.
♦Spanning Tree Algorithm Protocol for creation of alternative backup paths and prevention of indefinite
network loops.
♦Fully configurable either in-band or out-of-band control via SNMP based software.
♦Flash memory for software upgrade. This can be done in-band via BOOTP/TFTP. Out-of-band console
can also initiate a download request.
♦Built-in SNMP management: Bridge MIB (RFC 1493), RMON MIB (RFC 1757), and MIB-II (RFC 1213).

Stackable NWay Ethernet Switch User’s Guide
14 Unpacking and Setup
2
2 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 Stackable NWay Ethernet Switch
♦Mounting kit: two mounting brackets and screws
♦Four rubber feet with adhesive backing
♦One AC power cord
♦One RS-232 cable (master only)
♦This user’s guide on CD-ROM with a Registration Card
If any item is found missing or damaged, please contact your local D-Link reseller for replacement.
Setup
The setup of the Switch can be performed using the following steps:
♦The surface must support at least 5 kg.
♦The power outlet should be within 1.82 meters (6 feet) of the device.
♦Visually inspect the power cord and see that it is secured fully to the AC power connector.
♦Make sure that there is proper heat dissipation from and adequate ventilation around the Switch. Do
not place heavy objects on the Switch.
Desktop or Shelf Installation
When installing the Switch on a desktop or shelf, the rubber feet included with the device must be first
attached. Attach these cushioning feet on the bottom at each corner of the device. Allow enough ventilation
space between the device and the objects around it.

Stackable NWay Ethernet Switch User’s Guide
Unpacking and Setup 15
Figure 2-1. Switch installed on a Desktop or Shelf
Rack Installation
The Switch can be mounted in an EIA standard size, 19-inch rack, which can be placed in a wiring closet with
other equipment. To install, attach the mounting brackets on the switch’s front panel (one on each side) and
secure them with the screws provided.
Figure 2-2A. Attaching the mounting brackets to the Switch
Then, use the screws provided with the equipment rack to mount the Switch in the rack.
Figure 2-2B. Installing the Switch in an equipment rack

Stackable NWay Ethernet Switch User’s Guide
16 Unpacking and Setup
Power On
The Switch can be used with AC power sources 100 - 240 VAC, 50 - 60 Hz. The power switch is located at the
rear of the unit adjacent to the AC power connector and the system fan. The Switch’s power supply will adjust
to the local power source automatically and may be turned on without having any or all LAN segment cables
connected.
After the power switch is turned on, the LED indicators should respond as follows:
♦All LED indicators will momentarily blink. This blinking of the LED indicators represents a reset of the
system.
♦The power LED indicator will blink while the Switch loads onboard software and performs a self-test.
After approximately 40 seconds, the LED will light continuously to indicate the Switch is in a ready
state.
♦The console LED indicator will remain ON if there is a connection at the RS-232 port, otherwise this
LED indicator is OFF.
♦The 100M LED indicator may remain ON or OFF depending on the transmission speed.
Power Failure
As a precaution, the Switch should be unplugged in case of power failure. When power is resumed, plug the
Switch back in.

Stackable NWay Ethernet Switch User’s Guide
Identifying External Components 17
3
3 IDENTIFYING EXTERNAL COMPONENTS
This chapter describes the front panel, rear panel, optional plug-in modules, and LED indicators of the Switch
Front Panel
The front panel of the Switch consists of either 22 or 20 (10/100 Mbps) Ethernet/Fast Ethernet ports, two or
one uplink jacks, a slide-in module slot for 10/100 Mbps Ethernet ports, an RS-232 communication port (DES-
3624i, DES-3624iF, and DES-3624iFM only), and LED indicators.
Figure 3-1. Front panel view of the Switches
♦Comprehensive LED indicators display the conditions of the Switch and status of the network. A
description of these LED indicators follows (see LED Indicators).
♦An RS-232 DCE console port is used to diagnose the Switch via a connection to a PC and Local Console
Management (DES-3624i, DES-3624iF, and DES-3624iFM only).
♦Twenty or 22 high performance NWay ports all operate at 10/100 Mbps for connection to servers and
hubs. All ports can be auto-negotiated between 10Mbps or 100Mbps.
♦A slide-in module slot (labeled Slot1) for 10/100 Mbps Ethernet ports can accommodate the following
modules: 2-port TX, 2-port FX (MT-RJ), or 1-port FX (SC).
♦One or two MDI-II uplink jacks are supported. Port numbers 1 and 2 on the DES-3624, DES-3624F, and
DES-3624FM are equipped with MDI-Xjacks for normal end-node connections and MDI-II jacks for
uplink connections. Port number 1 on the DES-3624i, DES-3624iF, and DES-3624iFM are equipped
with an MDI-Xjack for normal end-node connection and an MDI-II jack for uplink connection.

Stackable NWay Ethernet Switch User’s Guide
18 Identifying External Components
Rear Panel
The rear panel of the DES-3624, DES-3624F, and DES-3624FM consist of a slot (labeled Slot2) for a Stacking
input/output port and an AC power connector. The rear panel of the DES-3624i, DES-3624iF, and DES-
3624iFM consist of two slots (labeled Slot2 and Slot3). Slot2 is for Stacking input/output ports Sio1, Sio2, and
Sio3. Slot3 is for an optional Gigabit Ethernet uplink (MDI-II) port. The following shows the rear panel of the
Switches.
Figure 3-2. Rear panel view of the Switches
♦The optional Gigabit Ethernet slide-in module is an uplink/MDI-II (media dependent interface) port for
uplink to another Switch (DES-3624i, DES-3624iF, and DES-3624iFM only). Two models are available,
one-port and two-port.
♦The Stacking input/output port slide-in module in the rear panel is for stacking to another device to
implement a high-port count, manageable Switch. The three-port module is for a master device and a
one-port module is for a client device.
♦The AC power connector is a three-pronged connector that supports the power cord. Plug in the female
connector of the provided power cord into this connector, and the male into a power outlet. Supported
input voltages range from 100 ~ 240 VAC at 50 ~ 60 Hz.
Side Panels
The right side panel of the Switch contains two system fans (see the bottom part of the diagram below). The
left side panel contains heat vents.

Stackable NWay Ethernet Switch User’s Guide
Identifying External Components 19
Figure 3-3. Side panel views of the Switch
♦The system fans are used to dissipate heat. The sides of the system also provide heat vents to serve the
same purpose. Do not block these openings, and leave adequate space at the rear and sides of the Switch
for proper ventilation. Be reminded that without proper heat dissipation and air circulation, system
components might overheat, which could lead to system failure.
Stack Operation
The DES-3624i, DES-3624iF, and DES-3624iFM are all intelligent Switches capable of acting as a master
for up to three slave Switches (DES-3624, DES-3624F, or DES-3624FM). Each port is referred to by unit ID
and port number in your DES-3624 Series stack.
To set up a stack, a one-port Stacking input/output module is needed for each client Switch and a three-
port Stacking input/output module is needed for the master Switch. Once the modules have been installed,
use a cascade cable to connect each client Switch to the master Switch.
Figure 3-4. Switch stack with one master and three slaves
Please note that two client switches can also be connected via the Stacking input/output ports.
The following diagram displays some possible switch stack connections:

Stackable NWay Ethernet Switch User’s Guide
20 Identifying External Components
Figure 3-5. Switch stack with example of possible connections
Optional Plug-in Modules
The DES-3624i/DES-3624iF/DES-3624iFM Stackable NWay Ethernet Switch is able to accommodate a range
of plug-in modules in order to increase functionality and performance.