D-Link DES-3028 User manual

D-Link ™ DES-3028/DES-3028P/DES-3052/DES-3052P
Managed 10/100Mbps Fast Ethernet Switch
Release I
Manual

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Information in this document is subject to change without notice.
© 2007 D-Link Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Computer Corporation is strictly forbidden.
Trademarks used in this text: D-Link and the D-LINK logo are trademarks of D-Link Computer Corporation; Microsoft and Windows are registered trademarks of
Microsoft Corporation.
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. D-Link Computer
Corporation disclaims any proprietary interest in trademarks and trade names other than its own.
February 2007 P/N 651ES3052015G
©Copyright 2007. All rights reserved.

DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Table of Contents
Preface ......................................................................................................................................................................................... vii
Intended Readers......................................................................................................................................................................... viii
Typographical Conventions ........................................................................................................................................................ viii
Notes, Notices, and Cautions ...................................................................................................................................................... viii
Safety Instructions ........................................................................................................................................................................ ix
Safety Cautions ..............................................................................................................................................................................................ix
General Precautions for Rack-Mountable Products ........................................................................................................................................x
Protecting Against Electrostatic Discharge ....................................................................................................................................................xi
Introduction......................................................................................................................................................1
DES-3028/28P/52/52P................................................................................................................................................................... 1
Features...........................................................................................................................................................................................................1
Ports ................................................................................................................................................................................................................2
Front-Panel Components.................................................................................................................................................................................3
LEDs ...............................................................................................................................................................................................................4
Installing the SFP ports ...................................................................................................................................................................................5
Installation........................................................................................................................................................6
Package Contents ............................................................................................................................................................................................6
Before You Connect to the Network ...............................................................................................................................................................6
Installing the Switch without the Rack............................................................................................................................................................7
Installing the Switch in a Rack........................................................................................................................................................................7
Mounting the Switch in a Standard 19" Rack..................................................................................................................................................8
Connecting the Switch .....................................................................................................................................9
Switch to End Node ........................................................................................................................................................................................9
Switch to Hub or Switch ...............................................................................................................................................................................10
Introduction to Switch Management ...........................................................................................................11
Management Options ................................................................................................................................................................... 11
Web-based Management Interface ................................................................................................................................................................11
SNMP-Based Management ...........................................................................................................................................................................11
Connecting the Console Port (RS-232 DCE) ................................................................................................................................................11
First Time Connecting to the Switch.............................................................................................................................................................13
Password Protection......................................................................................................................................................................................13
SNMP Settings..............................................................................................................................................................................................14
IP Address Assignment .................................................................................................................................................................................15
Web-based Switch Configuration.................................................................................................................17
Introduction.................................................................................................................................................................................. 17
Login to Web Manager .................................................................................................................................................................................17
Web-based User Interface .............................................................................................................................................................................18
Web Pages.....................................................................................................................................................................................................20
Administration ...............................................................................................................................................21
Device Information ...................................................................................................................................................................... 22
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
IP Address.................................................................................................................................................................................... 24
Port Configuration........................................................................................................................................................................ 27
Port Settings ..................................................................................................................................................................................................27
Port Error Disabled .......................................................................................................................................................................................28
Port Description ............................................................................................................................................................................................29
DHCP/BOOTP Relay .................................................................................................................................................................. 30
DHCP/BOOTP Relay Global Settings ..........................................................................................................................................................30
DHCP/BOOTP Relay Interface Settings.......................................................................................................................................................32
User Accounts.............................................................................................................................................................................. 33
Port Mirroring .............................................................................................................................................................................. 35
System Log Settings..................................................................................................................................................................... 36
Log Settings ................................................................................................................................................................................. 38
SNTP Settings.............................................................................................................................................................................. 39
Time Settings ................................................................................................................................................................................................39
Time Zone and DST......................................................................................................................................................................................40
MAC Notification Settings .......................................................................................................................................................... 42
TFTP Services.............................................................................................................................................................................. 42
Multiple Image Services .............................................................................................................................................................. 44
Firmware Information ...................................................................................................................................................................................44
Config Firmware Image ................................................................................................................................................................................44
Ping Test ...................................................................................................................................................................................... 45
Safeguard Engine ......................................................................................................................................................................... 45
SNMP Manager ........................................................................................................................................................................... 48
SNMP Settings..............................................................................................................................................................................................48
SNMP Traps Settings....................................................................................................................................................................................49
SNMP User Table .........................................................................................................................................................................................49
SNMP View Table ........................................................................................................................................................................................52
SNMP Group Table.......................................................................................................................................................................................53
SNMP Community Table Configuration.......................................................................................................................................................54
SNMP Host Table .........................................................................................................................................................................................55
SNMP Engine ID ..........................................................................................................................................................................................56
PoE System .................................................................................................................................................................................. 57
PoE System Configuration............................................................................................................................................................................57
PoE Port Configuration .................................................................................................................................................................................58
Single IP Settings......................................................................................................................................................................... 60
SIM Settings..................................................................................................................................................................................................61
Topology.......................................................................................................................................................................................................63
Tool Tips.......................................................................................................................................................................................................65
Right-Click....................................................................................................................................................................................................66
Menu Bar ......................................................................................................................................................................................................68
Firmware Upgrade ........................................................................................................................................................................................69
Configuration Backup/Restore......................................................................................................................................................................69
Upload Log ...................................................................................................................................................................................................70
Forwarding & Filtering ................................................................................................................................................................ 70
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Unicast Forwarding.......................................................................................................................................................................................70
Multicast Forwarding ....................................................................................................................................................................................71
Multicast Filtering Mode...............................................................................................................................................................................72
SMTP Service .............................................................................................................................................................................. 73
SMTP Server Settings ...................................................................................................................................................................................74
SMTP Service ...............................................................................................................................................................................................74
L2 Features.....................................................................................................................................................76
VLANs......................................................................................................................................................................................... 76
Static VLAN Entry........................................................................................................................................................................................80
GVRP Settings ..............................................................................................................................................................................................82
Trunking....................................................................................................................................................................................... 83
Link Aggregation ..........................................................................................................................................................................................84
LACP Port Settings.......................................................................................................................................................................................84
IGMP Snooping ........................................................................................................................................................................... 86
Static Router Ports Settings...........................................................................................................................................................................87
Spanning Tree .............................................................................................................................................................................. 88
STP Bridge Global Settings ..........................................................................................................................................................................91
STP Port Settings ..........................................................................................................................................................................................93
MST Configuration Identification.................................................................................................................................................................94
STP Instance Settings....................................................................................................................................................................................97
MSTP Port Information.................................................................................................................................................................................98
CoS ................................................................................................................................................................100
Port Bandwidth .......................................................................................................................................................................... 102
802.1p Default Priority .............................................................................................................................................................. 103
802.1p User Priority................................................................................................................................................................... 104
CoS Scheduling Mechanism ...................................................................................................................................................... 104
CoS Output Scheduling.............................................................................................................................................................. 105
Priority Settings ......................................................................................................................................................................... 106
TOS Priority Settings................................................................................................................................................................. 107
DSCP Priority Settings............................................................................................................................................................... 108
Port Mapping Priority Settings................................................................................................................................................... 109
MAC Priority ............................................................................................................................................................................. 111
ACL ...............................................................................................................................................................112
Time Range................................................................................................................................................................................ 112
Access Profile Table .................................................................................................................................................................. 112
CPU Interface Filtering.............................................................................................................................................................. 123
CPU Interface Filtering State ......................................................................................................................................................................123
CPU Interface Filtering Profile Table .........................................................................................................................................................123
Security .........................................................................................................................................................134
Traffic Control ........................................................................................................................................................................... 134
Port Security............................................................................................................................................................................... 137
Port Lock Entries ....................................................................................................................................................................... 137
SSL............................................................................................................................................................................................. 139
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Download Certificate ..................................................................................................................................................................................139
Ciphersuite ..................................................................................................................................................................................................139
SSH ............................................................................................................................................................................................ 142
SSH Server Configuration...........................................................................................................................................................................142
SSH Authentication Mode and Algorithm Settings.....................................................................................................................................143
SSH User Authentication ............................................................................................................................................................................145
802.1X........................................................................................................................................................................................ 146
Configure 802.1x Guest VLAN ..................................................................................................................................................................152
802.1x Authenticator Settings .....................................................................................................................................................................153
Local Users .................................................................................................................................................................................................156
Initializing Ports for Port Based 802.1x ......................................................................................................................................................156
Initializing Ports for MAC Based 802.1x....................................................................................................................................................157
Reauthenticate Port(s) for Port Based 802.1x .............................................................................................................................................158
Reauthenticate Port(s) for MAC-based 802.1x ...........................................................................................................................................159
RADIUS Server ..........................................................................................................................................................................................159
Trusted Host............................................................................................................................................................................... 160
Access Authentication Control .................................................................................................................................................. 161
Authentication Policy and Parameter Settings ............................................................................................................................................162
Application Authentication Settings............................................................................................................................................................162
Authentication Server Group ......................................................................................................................................................................163
Authentication Server Host .........................................................................................................................................................................164
Login Method Lists.....................................................................................................................................................................................167
Enable Method Lists ...................................................................................................................................................................................168
Configure Local Enable Password ..............................................................................................................................................................171
Enable Admin .............................................................................................................................................................................................171
Traffic Segmentation.................................................................................................................................................................. 172
Monitoring....................................................................................................................................................174
CPU Utilization.......................................................................................................................................................................... 174
Port Utilization........................................................................................................................................................................... 175
Packets ....................................................................................................................................................................................... 176
Received (RX).............................................................................................................................................................................................176
UMB Cast (RX) ..........................................................................................................................................................................................178
Transmitted (TX) ........................................................................................................................................................................................180
Packet Errors.............................................................................................................................................................................. 181
Received (RX).............................................................................................................................................................................................182
Transmitted (TX) ........................................................................................................................................................................................183
Packet Size................................................................................................................................................................................. 185
MAC Address ............................................................................................................................................................................ 187
Switch Log................................................................................................................................................................................. 188
IGMP Snooping Group .............................................................................................................................................................. 189
Browse Router Port.................................................................................................................................................................... 190
Static ARP Settings.................................................................................................................................................................... 190
Session Table ............................................................................................................................................................................. 191
Port Access Control ................................................................................................................................................................... 191
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
RADIUS Authentication .............................................................................................................................................................................191
RADIUS Accounting ..................................................................................................................................................................................194
Auth Diagnostics.........................................................................................................................................................................................196
Auth Session Statistics ................................................................................................................................................................................198
Auth Statistics .............................................................................................................................................................................................199
Auth State....................................................................................................................................................................................................200
Reset........................................................................................................................................................................................... 201
Reboot System ........................................................................................................................................................................... 203
Save Changes............................................................................................................................................................................. 203
Logout........................................................................................................................................................................................ 204
Technical Specifications ..............................................................................................................................205
System Log Entries ......................................................................................................................................211
Cable Lengths...............................................................................................................................................219
Glossary ........................................................................................................................................................220
Warranties/Registration..............................................................................................................................223
Tech Support...............................................................................................................................................................................................230
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Preface
The DES-3028/DES-3028P/DES-3052/DES-3052P User Manual is divided into sections that describe the system installation and
operating instructions with examples.
Section 1, Introduction - Describes the Switch and its features.
Section 2, Installation - Helps you get started with the basic installation of the Switch and also describes the front panel, rear
panel, side panels, and LED indicators of the Switch.
Section 3, Connecting the Switch - Tells how you can connect the Switch to your Ethernet/Fast Ethernet network.
Section 4, Introduction to Switch Management - Introduces basic Switch management features, including password protection,
SNMP settings, IP address assignment and connecting devices to the Switch.
Section 5, Introduction to Web-based Switch Management - Talks about connecting to and using the Web-based switch
management feature on the Switch.
Section 6, Administration - A detailed discussion about configuring the basic functions of the Switch, including Device
Information, IP Address, Port Configuration, DHCP/BOOTP Relay, User Accounts, Port Mirroring, System Log Settings, Log
Settings, SNTP Settings, MAC Notification Settings, TFTP Services, Multiple Image Services, Ping Test, Safeguard Engine,
SNMP Manager, PoE System, Single IP Settings, Forwarding & Filtering, and SMTP Service.
Section 7, Layer 2 Features - A discussion of Layer 2 features of the Switch, including VLAN, Trunking, IGMP Snooping, and
Spanning Tree.
Section 8, CoS - Features information on CoS, including Port Bandwidth, 802.1P Default Priority, 802.1P User Priority, CoS
Scheduling Mechanism, CoS Output Scheduling, Priority Settings, TOS Priority Settings, DSCP Priority Settings, Port Mapping
Priority Settings, and MAC Priority.
Section 9, ACL - Discussion on the ACL function of the Switch, including Time Range, Access Profile Table and CPU Interface
Filtering.
Section 10, Security - A discussion on the Security functions on the Switch, including Traffic Control, Port Security, Port Lock
Entries, SSL, SSH, 802.1X, Trusted Host, Access Authentication Control, and Traffic Segmentation.
Section 11, Monitoring - Features information on Monitoring including CPU Utilization, Port Utilization, Packets, Packet Errors,
Packet Size, MAC Address, Switch Log, IGMP Snooping Group, Browse Router Port, Static ARP Settings, Session Table, and
Port Access Control.
Appendix A, Technical Specifications - Technical specifications for the DES-3028/DES-3028P/DES-3052 and the DES-3052P.
Appendix B, System Log Entries - Information on the System Log Entries
Appendix C, Cable Lengths - Information on cable types and maximum distances.
Appendix D, Glossary - Lists definitions for terms and acronyms used in this document.
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Intended Readers
The DES-3028/DES-3028P/DES-3052/DES-3052P User Manual contains information for setup and management of the Switch.
The term, “the Switch” will be used when referring to all four switches. This manual is intended for network managers familiar
with network management concepts and terminology.
Typographical Conventions
Convention Description
[ ] In a command line, square brackets indicate an optional entry. For example: [copy filename]
means that optionally you can type copy followed by the name of the file. Do not type the
brackets.
Bold font Indicates a button, a toolbar icon, menu, or menu item. For example: Open the File menu
and choose Cancel. Used for emphasis. May also indicate system messages or prompts
appearing on your screen. For example: You have mail. Bold font is also used to represent
filenames, program names and commands. For example: use the copy command.
Boldface
Typewriter Font Indicates commands and responses to prompts that must be typed exactly as printed in the
manual.
Initial capital letter Indicates a window name. Names of keys on the keyboard have initial capitals. For example:
Click Enter.
Italics Indicates a window name or a field. Also can indicate a variables or parameter that is
replaced with an appropriate word or string. For example: type filename means that you
should type the actual filename instead of the word shown in italic.
Menu Name > Menu
Option
Menu Name > Menu Option Indicates the menu structure. Device > Port > Port
Properties means the Port Properties menu option under the Port menu option that is
located under the Device menu.
Notes, Notices, and Cautions
A NOTE indicates important information that helps you make better use of your device.
A NOTICE indicates either potential damage to hardware or loss of data and tells you
how to avoid the problem.
A CAUTION indicates a potential for property damage, personal injury, or death.
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Safety Instructions
Use the following safety guidelines to ensure your own personal safety and to help protect your system from potential damage.
Throughout this document, the caution icon ( ) is used to indicate cautions and precautions that you need to review and
follow.
Safety Cautions
To reduce the risk of bodily injury, electrical shock, fire, and damage to the equipment, observe the following precautions.
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Observe and follow service markings.
Do not service any product except as explained in your system documentation.
Opening or removing covers that are marked with the triangular symbol with a lightning bolt may expose you to
electrical shock.
Only a trained service technician should service components inside these compartments.
If any of the following conditions occur, unplug the product from the electrical outlet and replace the part or contact your
trained service provider:
The power cable, extension cable, or plug is damaged.
An object has fallen into the product.
The product has been exposed to water.
The product has been dropped or damaged.
The product does not operate correctly when you follow the operating instructions.
Keep your system away from radiators and heat sources. Also, do not block cooling vents.
Do not spill food or liquids on your system components, and never operate the product in a wet environment. If the system
gets wet, see the appropriate section in your troubleshooting guide or contact your trained service provider.
Do not push any objects into the openings of your system. Doing so can cause fire or electric shock by shorting out interior
components.
Use the product only with approved equipment.
Allow the product to cool before removing covers or touching internal components.
Operate the product only from the type of external power source indicated on the electrical ratings label. If you are not sure
of the type of power source required, consult your service provider or local power company.
To help avoid damaging your system, be sure the voltage on the power supply is set to match the power available at your
location:
115 volts (V)/60 hertz (Hz) in most of North and South America and some Far Eastern countries such as South
Korea and Taiwan
100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan
230 V/50 Hz in most of Europe, the Middle East, and the Far East
Also, be sure that attached devices are electrically rated to operate with the power available in your location.
Use only approved power cable(s). If you have not been provided with a power cable for your system or for any AC-
powered option intended for your system, purchase a power cable that is approved for use in your country. The power cable
must be rated for the product and for the voltage and current marked on the product's electrical ratings label. The voltage and
current rating of the cable should be greater than the ratings marked on the product.
To help prevent electric shock, plug the system and peripheral power cables into properly grounded electrical outlets. These
cables are equipped with three-prong plugs to help ensure proper grounding. Do not use adapter plugs or remove the
grounding prong from a cable. If you must use an extension cable, use a 3-wire cable with properly grounded plugs.
Observe extension cable and power strip ratings. Make sure that the total ampere rating of all products plugged into the
extension cable or power strip does not exceed 80 percent of the ampere ratings limit for the extension cable or power strip.
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
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To help protect your system from sudden, transient increases and decreases in electrical power, use a surge suppressor, line
conditioner, or uninterruptible power supply (UPS).
Position system cables and power cables carefully; route cables so that they cannot be stepped on or tripped over. Be sure
that nothing rests on any cables.
Do not modify power cables or plugs. Consult a licensed electrician or your power company for site modifications. Always
follow your local/national wiring rules.
When connecting or disconnecting power to hot-pluggable power supplies, if offered with your system, observe the
following guidelines:
Install the power supply before connecting the power cable to the power supply.
Unplug the power cable before removing the power supply.
If the system has multiple sources of power, disconnect power from the system by unplugging all power cables from
the power supplies.
Move products with care; ensure that all casters and/or stabilizers are firmly connected to the system. Avoid sudden stops
and uneven surfaces.
General Precautions for Rack-Mountable Products
Observe the following precautions for rack stability and safety. Also, refer to the rack installation documentation accompanying
the system and the rack for specific caution statements and procedures.
Systems are considered to be components in a rack. Thus, "component" refers to any system as well as to various peripherals
or supporting hardware.
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Before working on the rack, make sure that the stabilizers are secured to the rack, extended to the floor, and that the full
weight of the rack rests on the floor. Install front and side stabilizers on a single rack or front stabilizers for joined multiple
racks before working on the rack.
Always load the rack from the bottom up, and load the heaviest item in the rack first.
Make sure that the rack is level and stable before extending a component from the rack.
Use caution when pressing the component rail release latches and sliding a component into or out of a rack; the slide rails
can pinch your fingers.
After a component is inserted into the rack, carefully extend the rail into a locking position, and then slide the component
into the rack.
Do not overload the AC supply branch circuit that provides power to the rack. The total rack load should not exceed 80
percent of the branch circuit rating.
Ensure that proper airflow is provided to components in the rack.
Do not step on or stand on any component when servicing other components in a rack.
NOTE: A qualified electrician must perform all connections to DC power and to safety
grounds. All electrical wiring must comply with applicable local, regional or national codes
and practices.
CAUTION: Never defeat the ground conductor or operate the equipment in the absence of a
suitably installed ground conductor. Contact the appropriate electrical inspection authority or
an electrician if you are uncertain that suitable grounding is available.
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
CAUTION: The system chassis must be positively grounded to the rack cabinet frame. Do
not attempt to connect power to the system until grounding cables are connected. A
qualified electrical inspector must inspect completed power and safety ground wiring. An
energy hazard will exist if the safety ground cable is omitted or disconnected.
CAUTION: Do not replace the battery with an incorrect type. The risk of explosion exists if
the replacement battery is not the correct lithium battery type. Dispose of used batteries
according to the instructions.
Protecting Against Electrostatic Discharge
Static electricity can harm delicate components inside your system. To prevent static damage, discharge static electricity from
your body before you touch any of the electronic components, such as the microprocessor. You can do so by periodically touching
an unpainted metal surface on the chassis.
You can also take the following steps to prevent damage from electrostatic discharge (ESD):
1. When unpacking a static-sensitive component from its shipping carton, do not remove the component from the antistatic
packing material until you are ready to install the component in your system. Just before unwrapping the antistatic
packaging, be sure to discharge static electricity from your body.
2. When transporting a sensitive component, first place it in an antistatic container or packaging.
3. Handle all sensitive components in a static-safe area. If possible, use antistatic floor pads, workbench pads and an
antistatic grounding strap.
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Section 1
Introduction
DES-3028/28P/52/52P Switch Description
Features
Ports
Front-Panel Components
Side Panel Description
Rear Panel Description
DES-3028/28P/52/52P
The DES-3028, DES-3028P, DES-3052, and the DES-3052P are all members of the D-Link Switch family. These Switches
provides unsurpassed performance, fault tolerance, scalable flexibility, robust security, standard-based interoperability and
impressive technology to future-proof departmental and enterprise network deployments with an easy migration path.
The following manual describes the installation, maintenance, and configurations concerning the DES-3028, DES-3028P,
DES-3052, and DES-3052P. These four Switches are identical in configuration and very similar in basic hardware and
consequentially, most of the information in this manual will be universal to the total group of switches. Corresponding screen
pictures of the web manager may be taken from any one of these switches but the configuration will be identical, except for
varying port counts. For the remainder of this document, we will use the DES-3028P as the Switch in question for examples,
screen shots, configurations, and explanations.
Features
IEEE 802.3ad Link Aggregation Control Protocol support•
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IEEE 802.1x Port-based and MAC-based Access Control
IEEE 802.1Q VLAN
IEEE 802.1D Spanning Tree, IEEE 802.1W Rapid Spanning Tree and IEEE 802.1s Multiple Spanning Tree support
Access Control List (ACL) support
Single IP Management support
Access Authentication Control utilizing TACACS, XTACACS and TACACS+
Internal Flash Drive for saving configurations and firmware
Simple Network Time Protocol support
MAC Notification support
System and Port Utilization support
System Log Support
Support port-based enable and disable
Address table: Supports up to 8K MAC addresses per device
Supports a packet buffer of up to 512K bytes
Supports Port-based VLAN Groups
Port Trunking with flexible load distribution and fail-over function
IGMP Snooping support
SNMP support
Secure Sockets Layer (SSL) and Secure Shell (SSH) support
Port Mirroring support
MIB support for:
RFC1213 MIB II
RFC1493 Bridge
RFC2819 RMON
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
• RFC2665 Ether-like MIB
RFC2863 Interface MIB•
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Private MIB
RFC2674 for 802.1p
IEEE 802.1x MIB
IEEE 802.3x flow control in full duplex mode
IEEE 802.1p Priority Queues
IEEE 802.3u 100BASE-TX compliant
RS-232 DCE console port for Switch management
Provides parallel LED display for port status such as link/act, speed, etc.
IEEE 802.3 10BASE-T compliant
High performance switching engine performs forwarding and filtering at wire speed, maximum 14,881 packets/sec
on each 10Mbps Ethernet port, maximum 148,810 packet/sec on 100Mbps Fast Ethernet port and 1,488,100 for each
Gigabit port
Full and half-duplex for both 10Mbps and 100Mbps connections. Full duplex allows the switch port to
simultaneously transmit and receive data. It only works with connections to full-duplex-capable end stations and
switches. Connections to a hub must take place at half-duplex
Support Broadcast/Multicast storm control
Non-blocking store and forward switching scheme capability to support rate adaptation and protocol conversion
Supports by-port Egress/Ingress rate control
Efficient self-learning and address recognition mechanism enables forwarding rate at wire speed
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Ports
The following table lists the relative ports that are present within each switch:
DES-3028 and DES-3028P DES-3052 and DES-3052P
Twenty-four 10/100BASE-T
Two 1000Base-T/SFP Combo
Ports
Two 1000Base-T Ports
One female DCE RS-232 DB-9
console port
Forty-eight 10/100Mbps Ports
Two 1000Base-T/SFP Combo Ports
Two 1000Base-T Ports
One female DCE RS-232 DB-9
console port
The following table lists the features and compatibility for each type of port present in the DES-3028/28P/52/52P.
10/100/1000BASE-T SFP Combo 1000BASE-T Combo
IEEE 802.3 compliant
IEEE 802.3u compliant
IEEE 802.3x flow control
support in full-duplex
Auto MDI-X/MDI-II cross
over support
SFP Transceivers Supported:
DEM-310GT (1000BASE-LX)
DEM-311GT (1000BASE-SX)
DEM-314GT (1000BASE-LH)
DEM-315GT (1000BASE-ZX)
DEM-210 (Single Mode
100BASE-FX)
DEM-211 (Multi Mode
100BASE-FX)
WDM Transceiver Supported:
DEM-330T (TX-1550/RX-
1310nm), up to 10km,Single-
Mode
DEM-330R (TX-1310/RX-
1550nm), up to 10km,Single-
Mode
DEM-331T (TX-1550/RX-
1310nm), up to 40km, Single-
Mode
DEM-331R (TX-1310/RX-
1550nm), up to 40km, Single-
Mode
Compliant to the following
standards:
1. IEEE 802.3z compliance
2.IEEE 802.3u compliance
IEEE 802.3 compliant
IEEE 802.3u compliant
IEEE 802.3ab compliant
IEEE 802.3z compliant
IEEE 802.3x flow control
support in full-duplex
NOTE: The SFP combo ports on the Switch cannot be used simultaneously with the
corresponding 1000BASE-T ports. If both ports are in use at the same time (ex. port 25
of the SFP and port 25 of the 1000BASE-T), the SFP ports will take priority over the
combo ports and render the 1000BASE-T ports inoperable.
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Front-Panel Components
DES-3028P
• Twenty-four 10/100Mbps BASE-T ports
• Two Combo 1000BASE-T/SFP ports located to the right
• Two 1000BASE-T ports located to the right
• One female DCE RS-232 DB-9 console port
• LEDs for Power, Console, PoE, Link/Act/Speed for each port
Figure 1- 1. Front Panel of the DES-3028P
DES-3052P
• Forty-eight 10/100Mbps BASE-T ports
• Two Combo 1000BASE-T/SFP ports located to the right
• Two 1000BASE-T ports located to the right
• One female DCE RS -232 DB-9 console port
• LEDs for Power, Console, PoE, Link/Act/Speed for each port
Figure 1- 2. Front Panel of the DES-3052P
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
LEDs
The following table lists the LEDs located on models of the DES-30xx Switches along with their corresponding description:
Location LED Indicative Color Status Description
Solid Light Power On
Power Green Light off Power Off
Solid Light Console on
Blinking POST is in progress/ POST
is failure.
Per Device
Console Green
Light off Console off
Link/Act/ Speed Green Solid Light Link/Act/Speed Mode
“Mode Select
Button” PoE Green Solid Light PoE Mode
Solid Green
When there is a secure
100Mbps Fast Ethernet
connection (or link) at any of
the ports.
Blinking Green
When there is reception or
transmission (i.e. Activity—
Act) of data occurring at a
Fast Ethernet connected
port.
Solid Amber
When there is a secure
10Mbps Ethernet connection
(or link) at any of the ports.
Blinking Amber
When there is reception or
transmission (i.e. Activity—
Act) of data occurring at an
Ethernet connected port.
Link/Act/Speed Green/Amber
Light off No link
Solid Green Powered device is
connected.
Blinking Port has detected a error
condition
LED Per
10/100 Mbps
Port
PoE Green
Light off
Powered Device may receive
power from an AC power
source or no 802.3af PD is
found
Solid Green
When there is a secure
1000Mbps connection (or
link) at any of the ports.
Blinking Green
When there is reception or
transmission (i.e. Activity--
Act) of data occurring at a
1000Mbps connected port.
Solid Amber
When there is a secure
10/100Mbps Fast Ethernet
connection (or link) at any of
the ports.
Blinking Amber
When there is reception or
transmission (i.e. Activity—
Act) of data occurring at a
Fast Ethernet connected
port.
LED Per GE
Port
Link/Act/Speed
mode for
1000BASE-T ports
Green/Amber
Light off No link
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Solid Green
When there is a secure
1000Mbps connection (or
link) at the ports.
Blinking Green
When there is reception or
transmission (i.e. Activity--
Act) of data occurring at a
1000Mbps connected port.
Solid Amber
When there is a secure
100Mbps connection (or link)
at any of the ports.
Blinking Amber
When there is reception or
transmission (i.e. Activity—
Act) of data occurring at the
ports.
Link/Act/Speed
mode for SFP
ports
Green/Amber
Light off No link
Installing the SFP ports
The DES-3028/28P/52/52P Switches are equipped with SFP (Small Form Factor Portable) ports, which are to be used with fiber-
optical transceiver cabling in order to uplink various other networking devices for a gigabit link that may span great distances.
These SFP ports support full-duplex transmissions, have auto-negotiation and can be used with the DEM-310GT (1000BASE-
LX), DEM-311GT (1000BASE-SX), DEM-210 (Single Mode 100BASE-FX), DEM-211 (Multi Mode 100BASE-FX), DEM-
314GT (1000BASE-LH), DEM-315GT (1000BASE-ZX), DEM-330T/R (WDM) and DEM-331T/R (WDM) transceivers. See the
figure below for installing the SFP ports in the Switch.
Figure 1- 3. Inserting the fiber-optic transceivers into the DES-3028/28P/52/52P Switch
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
SECTION 2
Installation
Package Contents
Before You Connect to the Network
Installing the Switch without the Rack
Rack Installation
Power On
Package Contents
Open the shipping carton of the Switch and carefully unpack its contents. The carton should contain the following items:
One Stand-alone Switch•
•
•
•
•
•
•
•
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•
•
•
One AC power cord
This Manual on CD
Mounting kit (two brackets and screws)
Four rubber feet with adhesive backing
DCE RS-232 console cable
If any item is missing or damaged, please contact your local D-Link Reseller for replacement.
Before You Connect to the Network
The site where you install the Switch may greatly affect its performance. Please follow these guidelines for setting up the Switch.
Install the Switch on a sturdy, level surface that can support at least 4.24kg (9.35lbs) of weight. Do not place heavy
objects on the Switch.
The power outlet should be within 1.82 meters (6 feet) of the Switch.
Visually inspect the power cord and see that it is fully secured to the AC/DC power port.
Make sure that there is proper heat dissipation from and adequate ventilation around the Switch. Leave at least 10 cm
(4 inches) of space at the front and rear of the Switch for ventilation.
Install the Switch in a fairly cool and dry place for the acceptable temperature and humidity operating ranges.
Install the Switch in a site free from strong electromagnetic field generators (such as motors), vibration, dust, and
direct exposure to sunlight.
When installing the Switch on a level surface, attach the rubber feet to the bottom of the device. The rubber feet
cushion the Switch, protect the casing from scratches and prevent it from scratching other surfaces.
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DES-3028 DES-3028P DES-3052 DES-3052P Layer 2 Fast Ethernet Managed Switch
Installing the Switch without the Rack
When installing the Switch on a desktop or shelf, the rubber feet included with the Switch should first be attached. Attach these
cushioning feet on the bottom at each corner of the device. Allow enough ventilation space between the Switch and any other
objects in the vicinity.
Figure 2 - 1. Prepare Switch for installation on a desktop or shelf
Installing the Switch in a Rack
The Switch can be mounted in a standard 19" rack. Use the following diagrams to guide you.
Figure 2 - 2. Fasten mounting brackets to Switch
Fasten the mounting brackets to the Switch using the screws provided. With the brackets attached securely, users can mount the
Switch in a standard rack as shown in the next figure.
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