D-Link DES-3216 User Manual

DES-3216 10/100 Auto Negotiation

Switch

User’s Guide

Rev. A1 (December, 1998)

6DES3216..02

Printed In Taiwan

RECYCLABLE

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Hardware:

D-Link warrants i ts hardware produc ts to be free fr om defects in w orkmanship and m aterials, under normal use and service, for the fol lowing
periods measured from date of purchase from D-Link or its authorized Reseller:

Product Type Warranty Period
Complete Products One year
Spare parts and spare kits 90 days

Your dealer, or your nearest D-Link offic e, c an ad vise whe ther a l ong er peri od of war rant y ap pl ies to your pur chas e, and i f so, can pr o vide you a
separate certificate of supplemental warranty.

The one-year peri od of warranty o n complete produc ts (or suc h longer period of war ranty as ma y be offered as to your purc hase) appl ies on

condition that the pro duct’s Regis tration Card is filled out and retur ned to a D-Link office within ninety (90) days of purchas e. A list of D-Li nk
offices is provided at the back of this manual, together with a copy of the Re gistration Card. Fai ling such timely registr ation of purchase, the
warranty period shall be limited to ninety (90) days.

If the product proves defective within the applicable warranty period, D-Link will provide repair or replacement of the product. D-Link s hall ha ve
the sole discretion whether to repair or replace, and replacement produc t may be new or reconditioned. Replacement produc t shall be of
equivalent or better s pec ifi c ations , relati ve to the defec tive product, but need no t be i den tic al . Any product or p ar t repai red b y D-Li nk pursuant to
this warranty shall have a warranty p eriod of not les s than 90 da ys, from date of such r epair, i rrespecti ve of any earlier expiration of or iginal
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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 Registrati on Card for the product in questi on has not been retur ned to D-Li nk, then a pro of of p urchase ( such
as a copy of the da ted p urc hase i nvoic e) m ust be pr ovided. If handl i ng of warr ant y cor rec ti on i s r equi red under s peci al circ ums tances , you may
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expenses incurr ed for r eturn of d efec tive product in ac cor dance w ith thi s warr anty. D-Li nk shal l ne ver be res pons ibl e for an y s oftware, firm ware,
information, data contained in, stored on or integrated with any product returned to D-Link pursuant to this warranty.

Any package returned to D-Link without an RMA number will be rejected and shipped bac k to you at your e xpense, a nd D- Link res erves the right
in such case to levy a reasonable handling charge in addition to mailing or shipping costs.

Software:

W arrant y s ervice f or softw ar e produc ts m a y be obtained by c ontacting a D -Link of f ice w it hi n the ap pl icable warr anty per i od . A
list of D-Li nk offices is provided at the b ac k of t his m anual, t og et her wit h a copy of th e Regis tration C ar d . If a R egis tration Card
for the product in qu estion has not b een return ed to a D-Li nk office, then a proof of purchas e (such as 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 warran ts that its s oftw are pr oducts will p erfor m in su bstant ial conf orm ance with th e applic able product d ocum entation
provid ed by D-Link w ith such soft ware produc t, for a peri od of ninety (90 ) days from th e date of purc hase f rom D-Lin k or its
Author iz ed Reseller . D-Lin k w arrants t h e m ag netic m edia, on wh ic h D- L i nk provides its s of tw ar e product , ag ainst failure during
the same warranty period. This warranty applies to purchased software, and to replacement s oftware 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
Intern et, or t o any updat e whic h m a y ot h er wise be provi d ed f r ee of charge.

ii

D-Link’s sole ob ligation under this software w arranty shal l be to replac e any defective software produc t with produc t that
subst anti al ly confor ms to D- Li nk ’s applicabl e product d oc um en tation. You assume r es ponsibil ity f or the selec t i on of appropr i ate
application and system/platform software and associated reference materials. D-Link makes no warranty that its software
products will wor k in combin ation wit h any har dware, or any applic ation or s ystem p latfor m soft ware pr oduc t provi ded by any
third party, except those expressly d es ignated in D-Link’s appl icable product documentation as being c ompatible. D-Link’s
obligation under this warranty shall be a reasonable effort to provide compatibility, but D-Link shall have no obligation to
provid e compat i bi lity wh en ther e is f ault in t h e third-party h ar d w are or s oft w are. D-L in k m ak es no w arranty that oper ation of its
softwar e produc ts will be un int err upt ed or abs olut ely er ror- fr ee, and no warr an ty t hat all def ects i n t he s oftw are p r oduct, withi n
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 R egistration c ard, provided at the bac k of this m anual, must be s ent to a D-Link offic e. To obtain an R MA 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 to you.

D-Link Offices to Contact for Warranty Service:
To mail your Registration Card, or to obtain an RMA number or warranty service, see the following address:

In North, Central, and South America:

D-Link Systems Inc.
53 Discovery Drive, Irvine CA 92618
Tel. [phone] Fax [phone]

In Europe and Israel:

D-Link Europe
Denmark House, Staples Corner, The Broadway, London NW9 7BW, U.K.
Tel. [phone] Fax [phone]

In the Middle East (except Israel), Asia, Oceania and Africa:

D-Link Corporation
No. 233-2, 2
TEL. [phone]

Trademarks

Copyright 1998 D-Link Corporation.
D-Link © is a registered trademark of D-Link Corporation/D-Link Systems, Inc.
All rights reserved, contents may be revised without prior notice.
FlexSWITCH
Ethernet is a trademark of Xerox Corporation.
Microsoft Windows is a trademark of Microsoft Corporation.
VT100 is a trademark of Digital Equipment Corporation.
All other trademarks belong to their respective proprietors.

nd

F. Pao Chiao Road, Hsin Tien Taipei, Taiwan

TM

is a trademark of D-Link Systems, Inc.

Copyright Statement

iii

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 fou nd to com pl y with the limi ts for a C lass A digi tal device, pursuant t o Part 15 of the FCC Rules. These
limits are desi gned to pr o vide reas onabl e protec ti on ag ai nst har m ful i nter ferenc e when the eq ui pm ent i s operated i n a c om m erci al environment.

This equipment generates, uses, and can radi ate r adio fr e quency energy and, i f not i nstal l ed and us ed in ac c ordanc e wi th this us er ’s gui de, m a y
cause harmful i nterference to r adio comm unications . Operati on of this equi pment in a r esidenti al area i s likely to cause h armful interfer ence 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.

iv

Wichtige Sicherheitshinweise

Bitte lesen Sie sich diese Hinweise sorgfältig durch.
Heben Sie diese Anleitung für den spätern Gebrauch auf.
Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein

angefeuchtetes Tuch zur Reinigung.
Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind.
Das Gerät is vor Feuchtigkeit zu schützen.
Bei der Aufstellung des Ger ätes is t auf sic hern Stand zu achte n. Ein Kippen oder Fall en könnte Verlet zungen her vorrufen. V erwende n Sie nur

sichere Standorte und beachten Sie die Aufstellhinweise des Herstellers.
Die Belüftungsöffnungen dienen zur Luftzirkulation die das Gerät vor Überhitzung schützt. Sorgen Sie dafür, daß diese Öffnungen nicht

abgedeckt werden.
Beachten Sie beim Anschluß an das Stromnetz die Anschlußwerte.
Die Netzanschlußsteckdose muß aus Gründen der elektrischen Sicherheit einen Schutzleiterkontakt haben.
Verlegen Sie die Netzanschlußleitung so, daß niemand darüber fallen kann. Es sollete auch nichts auf der Leitung abgestellt werden.
Alle Hinweise und Warnungen die sich am Geräten befinden sind zu beachten.
Wird das Gerät über einen länger en Zeitraum ni cht benutzt, sollten Si e es vom Strom netz trennen. Som it wird im Falle einer Überspannung

eine Beschädigung vermieden.
Durch die Lüftungsöffnungen dürfen niemals Gegenstände oder Flüssigkeiten in das Gerät gelangen. Dies könnte einen Brand bzw.

Elektrischen Schlag auslösen.
Öffnen Sie niemals das Gerät. Das Gerät darf aus Gründen der elektrischen Sicherheit nur von authorisiertem Servicepersonal geöffnet werden.
Wenn folgende Situationen auftreten ist das Gerät vom Stromnetz zu trennen und von einerqualifizierten Servicestelle zu überprüfen:
Netzkabel oder Netzstecker sint beschädigt.
Flüssigkeit ist in das Gerät eingedrungen.
Das Gerät war Feuchtigkeit ausgesetzt.
Wenn das Gerät nicht der Bedienungsanleitung ensprechend funktioniert oder Sie mit Hilfe dieser Anleitung keine Verbesserung erzielen.
Das Gerät ist gefallen und/oder das Gehäuse ist beschädigt.
Wenn das Gerät deutliche Anzeichen eines Defektes aufweist.
Bei Reparaturen dürfen nur Orginaler satzteile bzw. den Orginalteilen entsprec hende Teile verwendet werd en. Der Einsatz von ungeeigneten

Ersatzteilen kann eine weitere Beschädigung hervorrufen.
Wenden Sie s ich mit allen Fragen die Ser vice und Repartur betreff en an Ihren Ser vicepartner. Somit s tellen Sie die Betriebssic herheit des

Gerätes sicher.

v

Table of Contents

Table o f Contents.................................................................................................................vi

About This Guide..................................................................................................................1

Audience........................................................................................................................... 1

Organization...................................................................................................................... 1

1............................................................................................................................................2

Introduction...........................................................................................................................2

Features.............................................................................................................................2

Front Panel........................................................................................................................3

Rear Panel.........................................................................................................................3

Management Methods.......................................................................................................4

Local Console Management ..........................................................................................4

Telnet Management.......................................................................................................4

D-View/ SNMP Management........................................................................................4

Updating Fir mware............................................................................................................4

2............................................................................................................................................5

Installing the DES-3216........................................................................................................5

Installation Options ...........................................................................................................5

Power On..........................................................................................................................6

3............................................................................................................................................7

Connecting the DES-3216 to the Net work.............................................................................7

Cable Specifications.......................................................................................................... 7

Ports..................................................................................................................................9

MDI-X Po rt...................................................................................................................9

RS-232 Port...................................................................................................................9

DES-3216 to DES-3216 Connectio n ..................................................................................9

Connecting the DES-3216 to the DES-5024 and Hubs....................................................... 9

4..........................................................................................................................................10

LEDs...................................................................................................................................10

DES-3216 LED Panel......................................................................................................11

5..........................................................................................................................................13

Table of Contents

vi

Managing t he DES-3216.....................................................................................................13

Local Console Management ............................................................................................13

Telnet..............................................................................................................................14

Log In.............................................................................................................................15

Help Message ..................................................................................................................16

Panel Conventions ...........................................................................................................17

Console Program .............................................................................................................18

System Configuration..................................................................................................18

User Account Management..........................................................................................18

Switch Port 1-8, 9-16 Configuratio n ............................................................................18

Spanning Tree Configuration.......................................................................................18

SNMP Management Co nfiguration ..............................................................................19

VLAN Port Management.............................................................................................19

Trunking Port Management.........................................................................................19

System Configuration Menu............................................................................................20

System Information Menu ...........................................................................................21

System Reset............................................................................................................... 23

Factory Reset............................................................................................................... 24

System Rate Control.................................................................................................... 26

Software Update Menu................................................................................................28

User Account Management .............................................................................................31

User Account Change Menu........................................................................................31

Create New User......................................................................................................... 31

Delet e Users................................................................................................................33

Change Password ........................................................................................................34

Switch Port Configuration...............................................................................................36

Switch Port Configuration Menu .................................................................................37

Spanning Tree Configuration...........................................................................................39

STA Operatio n Levels.................................................................................................39

Spanning Tree Configuration Me nu.............................................................................39

SNMP Management Co nfiguration..................................................................................42

SNMP Management Co nfiguration Menu....................................................................42

VLAN Port Management.................................................................................................46

Table of Contents

vii

VLAN Port Management Menu ...................................................................................46

Create New VLAN......................................................................................................48

Delet e VLAN Menu ....................................................................................................49

Trunking Port Management Menu ...................................................................................51

Create New Trunking Port...........................................................................................52

Delet e Trunking Port...................................................................................................53

6..........................................................................................................................................55

Troubleshooting.................................................................................................................. 55

Problem Solution ...........................................................................................................55

Appendix A.........................................................................................................................57

DES-3216 Technical Specificati ons.....................................................................................57

Switch Specifications ..................................................................................................57

Port Specifications.......................................................................................................57

Index...................................................................................................................................61

Table of Contents

viii

10/100 Auto Negotiation Switch User’s Guide

About This Guide

This section defines t he sco pe o f this guide and gives a su mmar y o f the cont ent s of each
chapter. It describes the features of the D-Link DES-3216 10/100 Auto Negotiation Switch.
Information about the DES-3216 other D-Link products is available on our web site at

www.dlink.com.

Audience

This user guide is intended for the networking or computer technician who is installing the
DES-3216 on a network. Refer to other sources for information about networking in general.

All the information you need to install, configure and troubleshoot the DES-3216 is
contained in the user guide.

Organization

Chapter 1, Introduction, gives a physical and functional overview of the DES-3216. The
DES-3216 features, LEDs, and management methods are covered.

Chapter 2, Installing the DES-3216, covers installing and powering on the DES-3216.
Chapter 3, Connecting the DES-3216 to the Network, covers connecting the DES-3216 to the

network, maximum cable length, cable spec ifications and connections between multip le
DES-3216s.

Chapter 4, LEDs, covers reading and interpreting the LED panel.
Chapter 5, Managing the DES-3216, covers all the menus and configurations available.
Chapter 6, Troubleshooting, covers troubleshooting the DES-3216.
Appendix A, DES-3216 Technical Specifications, covers the technical spec ifications of the

DES-3216.

About This Guide

1

10/100 Auto Negotiation Switch User’s Guide

1

Introduction

This chapter gives a physical and functional overview of the DES-3216. The DES-3216 is an
intelligent, managed switch, designed for use on medium sized networks as part of the
backbone or for use with other switches and hubs on a larger networ k.

The chapter is divided into the following sections. E ach section briefly describes the features
of the DES-3216. Most of the topics discussed will be explained in greater detail later in the
manual.

The topics covered are:

• Summary of Features

• Panels of the DES-3216

• Mana gement M ethods

• Updating Firmware

Features

The DES-3216 has the following features:

• All 16 ports auto-negotiate 10/100 Mbps.

• The DES-3216 can be configured and customized to your network.

• The DES-3216 can be managed in three ways: Local Console Management, Telnet

and SNMP.

• Supports Cut-through and Store-and-Forward switching.

• Supports Full and Half Duplex for both 10 Mbps and 100 Mbps. .

• Wire-speed packet filtering and forwarding for up to 16 ports.

• Eight thousand active MAC address table entries per device with self-learning and

table aging.

• The DES-3216 supports SNMP for RFC 1213, RFC 1757, and RFC 1493.

• VLAN support for eight broadcast domains.

• Port Trunking support for bandwidth aggregation between two DES-3216 switches.

Introduction

2

10/100 Auto Negotiation Switch User’s Guide

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Front Panel

The DES-3216 is designed for management at a glance. The front panel of the DES-3216,
displayed in Figure 1 has LEDs that give you essential information about the DES-3216 at a
glance.

All 16 MDI-X ports on the DES-3216 can be used for network connections.

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Figure 1: DES-3216 Front Panel

All LEDs are located on the front panel of the DES-3216. Their pur pose is to allo w you to
monitor the operation and performance of the DES-3216 at a glance.

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Rear Panel

The three pronged power plug, two fans and the on/off switch are located at the rear of the
DES-3216 displayed in Figure 2. When installing the DES-3216, leave enough room to allow
you to unplug the power cable if necessary and to attach the RS-232 cable for Local Conso le
Management.

There are heat vents located on the sides. The fans and the vents help to cool the DES-3216.
Always leave two inches of space around the DES - 3216 so that air can circulate and cool the
DES-3216.

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Figure 2: Rear Panel

Introduction

3

10/100 Auto Negotiation Switch User’s Guide

Management Methods

The DES-3216 supports three management methods:

• Loc al Co ns ole M anagement

• Telnet Management

• D-V iew/ SNMP Management

Local Console Management

Local Console Management is done through the RS-232 Console port. Managing the DES­3216 in this mode requires a direct connection between a PC and the DES-3216.

Telnet Management

Telnet is done over the network. Once the DES-3216 is on the network, you can use Telnet to
log in and change the configuration.

D-View/ SN MP Mana gement

The DES-3216 supports SNMP through D-View, D-Link’s proprietary SNMP application
and through other vendors’ SNMP applications. Please refer to the appropriate
documentation for instructions on installing and using D-View and other SNMP applications.

Updating Firmware

Firmware can be updated quickly and easily. See the section Software Update Menu,
Chapter 5, for instructions on updating firmware.

Introduction

4

10/100 Auto Negotiation Switch User’s Guide

Installing the DES-3216

This chapter cove rs t he following:

• Unpacking the DES-3216

• Installation options and instructions

• Powering on the DES-3216

Open the box and carefully unpack the DES-3216. You should have all the items on the
follow ing che c klis t:

• DES-3216 10/100 Auto Negotiation Switch

• RS-232 DCE serial cable

• Two mounting brackets and eight screws

• Four rubber pads with adhesive backing

• One six foot (1.82 m) power cord

• DES-3216/3224 User’s Guide CD ROM

2

If any items are missing, co ntact t he reta iler where you purchased the DES-3216 for
assistance.

Be sure to register the DES-3216 immed ia tely. Failure to register the DE S-3216 may void
the warranty.

Installation Options

There are two options for installing the DES-3216: desktop/ shelf installation or rack
installation.

Fo llo w thes e gu idelines for de s kto p/ shelf installation or ra ck installation:

• The surface must support 18 lbs or 8 kg.

• The power source must be within six feet ( 1 . 82 m)

• Power cord and cables should never be stretched

• Leave at least two inches around the DES-3216 for ventilation

The following tools and materials may be necessary to install the DES-3216:

• Screwdriver to install the brackets as needed

• Wire cutters to cut cable as needed for net wor k co nnections

• Crimpers to cr imp cable as needed

• RJ-45 connectors as needed

Desktop/ Shelf Installation

Follow these steps to install the DES-3216 on a desktop or shelf:

1. Place the four rubber pads at the four corners of the DES-3216.

Installing the DES-3216

5

10/100 Auto Negotiation Switch User’s Guide

2. Install the DES-3216 on the desktop/shelf where you would like to place it.

Rack Installation

The DES-3216 can be mounted in an EIA standard size, 19 inch rack. The dimensions of the
DES-3216 are 17.4 x 10.4 x 3.2 inches. The DES-3216 can be placed in a wiring closet along
with other equipment.

Follow these steps to install the DES-3216 on a rack:

1. Attach a mounting bracket to each side of the DES-3216 with the screws provided.

2. Slide the DES-3216 into the rack and use the screws provided to secure the DES-3216 to
the rack.

3. Connect the power cord and verify that the DES-3216 is receiving adequate power.

Power On

The power supply will adjust to the local power source automatically. The DES-3216 may be
plugged in without having any or with all LAN segment cables connected.

The power plug is located at the rear of the DES-3216. Plug the cable into the wall socket
and plug the other end into the DES-3216. There is a power on/ off switch located at the rear
of the DES-3216. Move the switch to the on position to power the DES-3216 on. The Power
LED will light and all po rt s w ill auto ne gotiate the prope r speed and dup lex mode when the
DES-3216 is powered on.

Reboot the DES-3216 if there is a problem. Contact D-Link Systems, Inc. for technical
support.

Check the configuration of the DES-3216 after a power failure but do not reset unless it is
necessary.

The DES-3216 can be used with power sources in the range 100 to 240 VAC., 50 to 60 Hz.

Installing the DES-3216

6

10/100 Auto Negotiation Switch User’s Guide

Connecting the DES-3216 to the

Network

This chapter cove rs t he following:

• Cable Specifications

• Ports

• Connecting the DES-3216 to another DES-3216

• Connecting the DES-3216 to other switches and hubs

This section deals with making cables and connecting the DES-3216 to other devic es. It is
extremely import ant that cables have the cor r ect pin arrangement and t hat the proper cables
be used when connecting to ser vers, switches, hubs, workstat ions and other devices.

Cable Specifications

3

The type of cable you use depends on the speed of yo ur network. A network running at 10
Mbps can use lower grade cable than a network running at 100 Mbps., Table 1: Cable
Length, indicates cable requirements for Et hernet and Fast Et hernet .

Table 1: Cable Length

Ethernet Type Cable Requirements Maximum Length
10BASE-T Category 3,4, or 5 UTP or STP 328 ft (100 M)
100BASE-TX Category 5 UTP or STP 328 ft (100 M)

Do not use telephone cable. Telephone cable does not support Ethernet or Fast Ethernet.
Use the following guidelines when handling cables:

• Do not st retch or bend cable s .

• Do not put cables near sour ces of electromagnetic inter fere nce.

• Do not create trip hazards by laying cables in aisles and walkways.

• Secure cables to the floor when routing in aisles or walkways.

In order for Ethernet or Fast Ethernet to work the wires must be arranged correctly inside the
RJ-45 connector when you make cables. The most common problem on Ethernet o r Fast
Ethernet networks is the cable. If you migrate from Ethernet to Fast Ethernet, make sure the
cables are pinned out properly.

There are two types of cables: str aight through and crossover. Category 3, 4, or 5 UTP/STP
cable has eight wires inside t he sheath. The wires form four pairs. Straight t hro u g h cable ha s
the same pin out, inside the RJ-45 connect or, at both ends. Crosso ver cable has a differe nt
pin arrangement at each end. Fast Ethernet does not tolerate incorr ect pin arrangeme nt s. You

Connecting the DES-3216 to the Network

7

10/100 Auto Negotiation Switch User’s Guide

must use the correct pin arrangement in order for the DES-3216 to wo r k properly. See Figure
3 for an example of straight through and crossover cable.

Figure 3: Cable Diagram

Connecting the DES-3216 to the Network

8

10/100 Auto Negotiation Switch User’s Guide

Ports

MDI-X Port

MDI-X port s ar e crossover ports. The pin arrangement is the same as the arrange me nt in a
crosso ver cable. The advantage o f an MDI-X port is that you can connect a device with an
MDI-II port without using a crossover cable. The steps for connecting the DES-3216 to 10
Mbps devices or 100 Mbps devices are the same. All the port s will auto negotiate the proper
speed and duplex mode. The DES-3216 has one row of 16 MDI-X ports.

Follow these steps to connect cables to the DES-3216:

1. Check for the appropriate cable configuration for each device.

2. Plug one end of the cable into any of the MDI-X ports.

3. Plug the other end into the appropriate port on the other device.

4. Verify that the LED indicates co nnect ion at the proper speed and dup lex mode.

RS-232 Port

Follow these steps to connect the DES-3216 and another device:

1. Plug one end of the cable provided into the port.

2. Plug the other end into the PC.

3. Run HyperTerminal or a terminal emulation program using the settings given for Local
Console Management at the beginning of Chapter 5, Managing the DES-3216.

DES-3216 to DES-3216 Connection

Connect two DES-3216s together one of the MDI-X ports. The DES-3216 is a lso compatible
with the DES-5016 and DES-5024. Port Trunking can be configured on the device if more
than one port is connected between two DES-3216s or if more than one port is connected
between a DES-3216, DES-3224, DES-5016 and DES-5024. Port trunking increases the
efficiency of the DES-3216 by increasing the bandwidth. See the section on Port Trunking in
Chapter 5 for instructions on how to configure Trunked ports.

Connecting the DES-3216 to the DES-5024 and
Hubs

You can connect the DES-3216 to other switches and hubs on the network. The DES-3216
and the DES-5024 are compatible products that can be connected easily. If you create
multiple connections bet ween devices, cr eate Trunked ports for more efficiency. See the
section on Port Trunking for more details.

Connecting the DES-3216 to the Network

9

10/100 Auto Negotiation Switch User’s Guide

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LEDs

The LED panel of the DES-3216, displayed in Figure 4, is designed to allow you to manage
the DES-3216 at a glance. The LEDs indicate the following:

• Power

• Speed

• Link

• Activity

• Duplex mode

All of the LEDs are described in detail. Use the tables to determine the meaning o f each
LED.

4

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Figure 4: DES-3216 LED Panel

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Managing the DES-3216

10

10/100 Auto Negotiation Switch User’s Guide

Power LED

The power LED lights when the DES-3216 is powered on. The purpose is to confirm that the
DES-3216 is getting adequate power. See Figure 4.

Table 2: Power LED

Status Color Meaning
On Green DES-3216 is powered on
Off Dark

DES-3216 is powered off , chec k power
cable and connection

DES-3216 LED Panel

The LED panel allows you to manage the DES-3216 at a glance. The first gro up of LEDs is
numbered 1-8 and the second is numbered 9-16. The numbers on the LEDs co r r esponds to
the numbers on the ports. See Table 3: DES-3216 LEDs for an explanation of the LEDs.

The Link LED indicates that there is a link at the port. If a cable is plugged into the port and
the link LED is off, check the cable and connection.

The Act (Activity) LED indicates there is activity, either reception or transmission, at t he
port.

The 100/10 LED indicates the speed of the port. All ports will auto negotiate 100 Mbps or 10
Mbps.

The Full/ Half LED indicates the duplex mode the port is in. Ports in Full are op erat ing at full
duplex. Full duplex means the port is transmit ting and receiving data simultaneously. Ports in
Half a re operating in ha lf duplex. Ha lf d uplex means that dat a is onl y being tr a nsmit ted or
received in one direction at a time.

Managing the DES-3216

11

10/100 Auto Negotiation Switch User’s Guide

Table 3: DES-3216 LEDs

LED Green Dark

Link Link is up No link or link is down
Act Flashing, data is passing through the port No data is passing through the port
100/10 Port is working at 100 Mbps Port is working at 10 Mbps
Full/ Half Port is in full duplex m ode Port is in half duplex m ode

Managing the DES-3216

12

10/100 Auto Negotiation Switch User’s Guide

Managing the DES-3216

This chapter shows the menus used to manage the DES-3216.
Three types of management are available on the DES-3216:

• Loc al Co ns ole M anage ment ( out- of- band)

• Telnet Mana gement (in- band)

• D-V iew/ SNMP Management

The DES-3216 can be managed in-band or out-of-band. In-band management refers to
managing the DES-3216 through one of the MDI-X ports.

Out-of-band management means going through the RS-232 port.
The interface and options are t he sa me w ith Loca l Console and Telnet Management. The

difference is the type of connection and the port that is used to manage the DES-3216.
D-View is a proprietary SNMP management program. D-View is provided with the DES-

3216. The DES-3216 supports other SNMP management applications and uses standard

MIB. Refer to appropriate documentation for installing and using other SNMP application
programs. The look and feel of D-View is different from other management types. Refer to
ot her docume ntation if yo u are using other vendors’ SNMP applications.

5

All instructions given in this chapter assume that you are logged into the DES-3216 and are
at the appropriate panel for carrying them out.

Local Console Management

Local Console Management is always done through the RS-232 serial port and requires a
direct connection between the DES-3216 and a PC. This type of management is very useful
when the network is down and the DES-3216 cannot be reached by any other means.

Use Local Console Management to log into the DES-3216 for the first time. You do not need
to know the IP address to log into the DES-3216 using Local Console Management. You can
change all the settings and configure the DES-3216, set the IP address and perform other
manag e me nt func tio ns.

Follo w the s e s teps to begin a ma na gement s e s sio n usin g Local Console Manageme nt:

1. Attach the male end of the RS-232 serial cable provided with the DES-3216 to the RS­232 port located at the front of the DES-3216.

2. Attach the other end to the serial port of a PC or workstation.

3. Run a terminal emulation program using the following settings:

• Emulation: VT-100/ANSI compatible

• BPS: 19 200

Managing the DES-3216

13