D-Link DES-3252P - Web Smart Switch User manual

Page 2
Table of Contents
Preface.................................................................................................................................... 5
Device Description.................................................................................................................. 8
Viewing the Device..........................................................................................................................8
Ports Description .............................................................................................................................9
Cable Specifications......................................................................................................................11
LED Definitions..............................................................................................................................11
Cable, Port, and Pinout Information ..............................................................................................13
Physical Dimensions .....................................................................................................................15
Mounting Device................................................................................................................... 16
Preparing for Installation................................................................................................................16
Installing the Device ......................................................................................................................18
Connecting the Device ..................................................................................................................21
Initial Configuration............................................................................................................... 22
Getting Started...................................................................................................................... 38
Starting the D-Link Embedded Web Interface...............................................................................39
Understanding the D-Link Embedded Web Interface....................................................................41
Using Screen and Table Options...................................................................................................44
Resetting the Device .....................................................................................................................46
Logging Off from the Device..........................................................................................................47
Managing Device Information ............................................................................................... 48
Defining the System Description ...................................................................................................49
Configuring System Time ..............................................................................................................50
Configuring Daylight Saving Time .................................................................................................51
Configuring SNTP..........................................................................................................................55
Defining SNTP Global Settings .....................................................................................................57
Defining SNTP Authentication.......................................................................................................59
Defining SNTP Servers .................................................................................................................61
Defining SNTP Interface Settings..................................................................................................64
Resetting the Device .....................................................................................................................66
Configuring Ports.................................................................................................................. 67
Viewing Port Properties.................................................................................................................70

Page 3
Aggregating Ports................................................................................................................. 72
Defining LAG Membership ............................................................................................................73
Configuring LACP..........................................................................................................................74
Configuring VLANs ...............................................................................................................76
Defining VLAN Properties..............................................................................................................77
Defining VLAN Membership ..........................................................................................................80
Defining VLAN Interface Settings..................................................................................................81
Configuring GARP.........................................................................................................................83
Defining the Forwarding Database ....................................................................................... 87
Defining Static Forwarding Database Entries................................................................................88
Defining Dynamic Forwarding Database Entries...........................................................................90
Configuring Spanning Tree................................................................................................... 92
Defining Classic Spanning Tree ....................................................................................................93
Defining STP on Interfaces............................................................................................................95
Defining Rapid Spanning Tree ......................................................................................................98
Defining Multiple Spanning Tree .................................................................................................100
Configuring Device Security................................................................................................ 106
Configuring Management Security ..............................................................................................107
Configuring Network Security......................................................................................................131
Configuring Network Security......................................................................................................134
Configuring IP Information.................................................................................................. 157
Defining IP Addresses.................................................................................................................158
Defining Default Gateways..........................................................................................................161
Configuring DHCP.......................................................................................................................162
Configuring ARP..........................................................................................................................164
Configuring Domain Name Servers.............................................................................................166
Defining DNS Host Mapping........................................................................................................168
Configuring Multicast Forwarding ....................................................................................... 170
Defining IGMP Snooping.............................................................................................................171
Defining Multicast Bridging Groups .............................................................................................173
Managing Power over Ethernet Devices.............................................................................176
Defining PoE System Information................................................................................................177
Displaying and Editing PoE System Information .........................................................................178
Managing System Files....................................................................................................... 180
Downloading System Files ..........................................................................................................181

Page 4
Uploading System Files...............................................................................................................183
Activating Image Files .................................................................................................................185
Copying Files...............................................................................................................................186
Managing System Files ...............................................................................................................187
Configuring Quality of Service ............................................................................................188
Defining General QoS Settings ...................................................................................................189
Configuring QoS Mapping ...........................................................................................................194
Configuring Basic Mode ..............................................................................................................196
Configuring Advanced QoS Settings...........................................................................................198
Configuring SNMP .............................................................................................................. 209
SNMP v1 and v2c........................................................................................................................209
SNMP v3 .....................................................................................................................................209
Configuring SNMP Security.........................................................................................................210
Configuring SNMP Notifications ..................................................................................................223
Managing System Logs ......................................................................................................231
Enabling System Logs.................................................................................................................232
Viewing the Device Memory Logs ...............................................................................................234
Viewing the FLASH Logs.............................................................................................................235
Defining Servers Log Parameters ...............................................................................................236
Managing Device Diagnostics............................................................................................. 238
Configuring Port Mirroring ...........................................................................................................239
Viewing Integrated Cable Tests...................................................................................................241
Viewing Optical Transceivers ......................................................................................................242
Viewing the CPU Utilization.........................................................................................................243
Viewing Statistics................................................................................................................ 244
Viewing Interface Statistics..........................................................................................................244
Managing RMON Statistics .........................................................................................................247
Appendix A Device Specifications & Features.................................................................... 260
Appendix B Troubleshooting............................................................................................... 267
Appendix C Technical Support ........................................................................................... 270
Contacting D-Link Technical Support............................................................................................................270
Warranty........................................................................................................................................................297
Product Registration......................................................................................................................................300

Preface
Page 5
Preface
The Embedded Web System (EWS) is a network management system. The D-Link Embedded Web Interface con-
figures, monitors, and troubleshoots network devices from a remote web browser. The D-Link Embedded Web
Interface web pages are easy-to-use and easy-to-navigate. In addition, The D-Link Embedded Web Interface pro-
vides real time graphs and RMON statistics to help system administrators monitor network performance.
This preface provides an overview to the D-Link Embedded Interface User Guide, and includes the following sec-
tions:
•DES-3252P User Guide Overview
•Intended Audience

Preface
DES-3252P User Guide Overview
Page 6
DES-3252P User Guide Overview
This user guide is divided into the following sections to provide concise information for installing, configuring, and
managing the device:
•Using the Installation Guide
•Using the Embedded Web Interface User Guide
Using the Installation Guide
This section provides an overview of the D-Link DES-3252P Installation Guide, which includes the following sec-
tions:
•Section 1. Device Description — Provides a system description including the hardware components.
•Section 2. Mounting Device — Provides step-by-step instructions for installing the device.
•Section 3. Initial Configuration — Provides step-by-step instructions for the initial device configuration.
Using the Embedded Web Interface User Guide
This section provides an overview to the D-Link Web System Interface User Guide. The D-Link Web System Inter-
face User Guide provides the following sections:
•Section 4. Getting Started — Provides information about using the EWS, including The D-Link Embedded
Web Interface, management, and information buttons, as well as information about adding, modifying, and
deleting device information.
•Section 5. Managing Device Information —Provides information about opening the device zoom view,
defining general system information, and enabling Jumbo frames.
•Section 6. Configuring Ports — Provides information about configuring ports.
•Section 7. Aggregating Ports — Provides information about configuring Link Aggregated Groups and
LACP.
•Section 8. Configuring VLANs — Provides information about configuring and managing VLANs, including
information about GARP and GVRP, and defining VLAN groups.
•Section 9. Defining the Forwarding Database — Provides information about configuring and managing
both static and dynamic MAC addresses.
•Section 10. Configuring Spanning Tree — Provides information about configuring Spanning Tree Protocol
and the Rapid Spanning Tree Protocol.
•Section 11. Configuring Device Security — Provides information about configuring device security for
management security, traffic control, and network security.
•Section 12. Configuring IP Information — Provides information about defining device IP addresses, ARP,
and Domain Name Servers.
•Section 13. Configuring Multicast Forwarding — Provides information about Multicast Forwarding.
•Section 14. Managing Power over Ethernet Devices — Provides information about managing PoE.
•Section 15. Managing System Files — Provides information about downloading, uploading, and copying
system files.
•Section 16. Configuring Quality of Service — Provides information about configuring Quality of Ser-
vice on the device.
•Section 17. Configuring SNMP — Provides information about defining SNMP v1,v2c, and v3 management,
including SNMP filters and notifications.
•Section 18. Managing System Logs — Provides information about enabling and defining system logs.
•Section 19. Managing Device Diagnostics — Provides information about configuring port mirroring, testing
copper and fiber cables, and viewing device health information.

Preface
Intended Audience
Page 7
•Section 20. Viewing Statistics — Provides information about viewing device statistics, including RMON sta-
tistics, device history events, and port and LAG utilization statistics.
•Appendix A Device Specifications & Features — Provides device Specifications & Features
•Appendix B Troubleshooting — Provides basic troubleshooting for installing the device.
•Appendix C Technical Support — Provides details for contacting D-Link technical support
Intended Audience
This guide is intended for network administrators familiar with IT concepts and terminology.

Device Description
Viewing the Device
Page 8
Section 1. Device Description
This section contains a description of the D-Link DES-3252P and contains the following topics:
•Viewing the Device
•Ports Description
•Cable Specifications
•LED Definitions
•Cable, Port, and Pinout Information
•Physical Dimensions
Viewing the Device
The device described in this section is a Fast Ethernet Managed Switch. Device management is performed using
an Embedded Web Server (EWS) or through a Command Line Interface (CLI). The device configuration is
performed via RS-232 interface.
This section contains descriptions for the following:
•Front Panel
•Back Panel
Note
All Stacking references are relevant only for future releases
Front Panel
DES-3252P is a high-performance Fast Ethernet switch that provides 48-Ports 10/100BASE-TX PoE Switch with
4 10/100/1000BASE-T ports and 2 combo SFP uplinks.
The following figure illustrates the DES-3252P front panel.
Figure 1: DES-3252P Front Panel
The device front panel is configured as follows:
•48 10/100Base-TX ports — RJ-45 TX auto-sensing switching ports. The RJ-45 ports are designated as ports
Ports 1-48.
•2 SFP 100Base-FX/1000Base-X Fiber ports — Two SFP ports or 2 Copper 100Base-T/1000Base-T ports
are designated as ports 49 and 50, which are also Combo ports.

Device Description
Ports Description
Page 9
•4 1000Base-T ports — Four RJ-45 stacking ports designated as ports 49,50,51 and 52.
•LED Indicators — Port activity Light Emitting Diodes (LED) for each port and system LEDs that are dis-
played separately.
Back Panel
The following figure illustrates the DES-3252P back panel.
Figure 2: DES-3252P Back Panel
The DES-3252P device back panel is configured as follows:
•RS-232 Console Port — The RS-232 Console port is an asynchronous serial console port supporting the
RS-232 electrical specification.
•Power Connector — AC power supply interface.
•RPS Connector — Redundant Power Supply connector.
Ports Description
This section describes the device ports and includes the following topics:
•10/100Base-TX Fast Ethernet Ports
•Combo Copper/SFP Ports (100Base-FX/1000Base-X Fiber Ports)
•RS-232 Console Port
10/100Base-TX Fast Ethernet Ports
The device contains 10/100 Base-TX Fast Ethernet ports. The ports are an RJ-45 ports which support half- and
full-duplex mode 10/100Mbps.
Combo Copper/SFP Ports (100Base-FX/1000Base-X Fiber Ports)
By offering a standard, hot swappable electrical interface, one gigabit ethernet port can support a wide range of
physical media, from copper to long-wave single-mode optical fiber, at lengths of hundreds of kilometers
is its flexibility. Where multiple different optical technologies are in use, an administrator can purchase GBICs as
needed, not in advance, and they can be the specific type needed for each link. This lowers the cost of the base
system and gives the administrator far more flexibility.
Small Form Factor Pluggable (SFP) Optical Transceivers are integrated duplex data GBIC links for bi-directional
communication over multimode optical fiber, designed for high-speed Fiber Channel data links. The SFP ports
(combo ports) are designated as 1000Base-X or 100Base-FX and can be also designated as 2 Copper 100Base-
T/1000Base-T ports which are RJ-45 TX auto-sensing switching ports.
The SFP (GBIC) port can be removed and inserted as required. The following figure illustrates the GBIC insertion.

Device Description
Ports Description
Page 10
Figure 3: Inserting a GBIC into the Device
RS-232 Console Port
The RS-232 port is an asynchronous serial console port supporting the RS-232 electrical specification. The port is
used to connect the device to a console managing the device. This interface configuration is as follows:
•Eight data bits.
•One stop bit.
•No parity.
•Baud rate is 9600 (default). The range is from 9600 to 115200 bps.
•Console speeds of 57600 and 115200.

Device Description
Cable Specifications
Page 11
Cable Specifications
The following table contains the various cable specification for the DES-3252P:
LED Definitions
The device front panels contain Light Emitting Diodes (LED) that indicate the device status.The different LED
types are as follows:
•Port LEDs — Indicates the port status.
•System LEDs — Indicates the device status.
Port LEDs
10/100Base-TX Fast Ethernet RJ-45 Port LEDs
A push button is located next to the system LEDs. The Push button has two modes:
•Not pressed (default) — The LEDs indicate Link’s activity and speed
•Pressed — The LEDs indicate each port PoE mode for 20 seconds and then set back to default mode.
The following figure illustrates the port LEDs.
Figure 4: DES-3252P Port LEDs
Table 1: DES- 3252P Cable Specifications
Cable Type Description
10/100Base-TX UTP CAT-3/4/5 (100 meters maximum)
1000Base-T UTP Cat. 5e (100 meters maximum) UTP Cat. 5 (100 meters maximum)
EIA/TIA-568B 150-ohm STP (100 meters maximum)
1000Base-LX Single-mode fiber module (10km)
1000Base-SX Multi-mode fiber module (550m)
1000Base-LH Single-mode fiber module (40km)
1000Base-ZX Single-mode fiber module (80km)
100Base-FX Multi-mode fiber module (2Km)
Mini-GBIC
SFP Transceiver for 1000Base-LX Single-mode fiber module (10km)
SFP Transceiver for 1000Base-SX Multi-mode fiber module (550m)
SFP Transceiver for 1000Base-LH Single-mode fiber module (40km)
SFP Transceiver for 1000Base-ZX Single-mode fiber module (80km)
SFP Transceiver for 100Base-FX Single-mode fiber module (2km)

Device Description
LED Definitions
Page 12
Each RJ-45 ports has one LED indicator for Link /activity and PoE indications. The LED indications are described
in the following table:
The SFP ports have two LEDs, one for Link/activity and one for FX link. The LED indications are described in the
following table:
The stacking Gigabit ports have one LED for Link /activity indications. The LED indications are described in the
following table:
Table 2: DES - 3252P Fast Ethernet RJ-45 Port LED Indications
Port Description LED Indication Description
Link/Activity LED Green Indicates a 100M link is established on the port.
Flashing green Indicates that there is data transmission on the port.
Amber Indicates a 10M link is established on the port.
Flashing Amber Indicates that there is data transmission on the port.
Off Indicates that there is no link established on the port.
PoE Status LED Green Indicates that power (48V) is being provided to the device
connected to the port.
Amber Indicates that power cannot be provided to the device
connected to the port / Error occurrences.
Alternating Amber/
Green Indicates that the power exceeds maximum system’s power of 375W / Error occurrences
Off Indicates that no device is connected to the port.
Table 3: DES - 3252P Copper /SFP Port LED Indications
Port Description LED Indication Description
Link/Activity LED Green Indicates that a 1000Mbps link is established on the port.
Flashing green Indicates that there is data transmission on the port.
Amber Indicates that a 100Mbps link is established on the port.
Flashing amber Indicates that there is data transmission on the port.
Off Indicates that there is no link established on the port.
Table 4: DES - 3252P Stacking Gigabit Port LED Indications
Port Description LED Indication Description
Link/Activity LED Green Indicates a 1Gbps link is established on the port.
Flashing Green Indicates that there is data transmission on the port.
Amber Indicates a 10Mbps/100Mbps link is established on the port.
Flashing Amber Indicates that there is data transmission on the port.
Off Indicates that there is no link established on the port.

Device Description
Cable, Port, and Pinout Information
Page 13
System LEDs
The DES-3252P system LEDs are located on the front panel’s left side. The following figure illustrates the DES-
3252P system LEDs.
Figure 5: DES-3252P System LEDs
The LED indications are described in the following table:
Cable, Port, and Pinout Information
This section describes the devices physical interfaces and provides information about cable connections. Stations
are connected to the device ports through the physical interface ports on the front panel. For each station, the
appropriate mode (Half/Full Duplex, Auto Negotiation) is set. The default is Auto Negotiation.
Table 5: System LEDs
LED Description LED
Indication Description
MS (Stack support). Red Indicates a master device (future release).
Green Indicates a slave device (future release).
Off Indicates the device is not a stack member, and is currently is
stand-alone mode.
PoE Green Indicates a PoE mode.
Off Indicates an Ethernet mode.
RPS Red Indicates that the device is being powered from a Redundant
Power Supply.
Green Indicates that a Redundant Power Supply is connected to the
device.
Off Indicates that a Redundant Power Supply is not connected to
the device.
FAN Red Indicates that there is a faulty fan.
Green Indicates that all fans are functioning correctly.
Power Green Indicates that the device is powered up.
Off Indicates that the device is off.
Fault Flashing Red Indicates that the device is currently running POST.
Red Indicates that the device detected a POST running error.

Device Description
Cable, Port, and Pinout Information
Page 14
Pin Connections for the 10/100/1000 Ethernet Interface
The switching port can connect to stations wired in standard RJ-45 Ethernet station mode using straight cables.
Transmission devices connected to each other use crossed cables. The following figure illustrates the pin
allocation.
Figure 6: RJ-45 Pin Allocation
The following table describes the pin allocation
Table 6: RJ-45 Pin Connections for 10/100/1000 Base-TX
Pin Use
1 TxRx 1+
2 TxRx 1-
3 TxRx 2+
4 TxRx 2-
5 TxRx 3+
6 TxRx 3-
7 TxRx 4+
8 TxRx 4-

Device Description
Physical Dimensions
Page 15
Pin Connections for the Console Port
The RS-232 port is an asynchronous serial console port supporting the RS-232 electrical specification. The port is
used to connect the device to a console managing the device. The following figure illustrates the pin allocation.
Figure 7: Console Port Pin Allocation
The following table describes the pin allocation
Table 7: Pin Allocation for the Console Port
Physical Dimensions
The device has the following physical dimensions:
•Width: 440 mm (17.32 inch)
•Depth: 310mm (12.20 inch)
•Height: 44 mm (1.732 inch)
Pin Signal
1 Data Carrier Detect
2 Received Data
3 Transmitted Data
4 Data Terminal Ready
5 Signal Ground
6 Data Set Ready
7 Request to Send
8 Clear to Send
9 Ring Indicator

Mounting Device
Preparing for Installation
Page 16
Section 2. Mounting Device
This section contains information for installing the device, and includes the following sections:
•Preparing for Installation
•Installing the Device
•Connecting the Device
•Rack Installation
Preparing for Installation
This section provides an explanation for preparing the installation site, and includes the following topics:
•Installation Precautions
•Site Requirements
•Unpacking
Installation Precautions
Warnings
• The surface on which the switch is placed should be adequately secured to prevent it from becoming
unstable and/or falling over.
• Ensure the power source circuits are properly grounded.
• Observe and follow service markings. Do not service any product except as explained in your system
documentation. Opening or removing covers marked with a triangular symbol with a lighting bolt may
cause electrical shock. These components are to be serviced by trained service technicians only.
• Ensure the power cable, extension cable, and/or plug is not damaged.
• Ensure the product is not exposed to water.
• Ensure the device is not exposed to radiators and/or heat sources.
• Do not push foreign objects into the device, as it may cause a fire or electric shock.
• Use the device only with approved equipment.
• Allow the product to cool before removing covers or touching internal equipment.
• Ensure the switch does not overload the power circuits, wiring, and over-current protection. To deter-
mine the possibility of overloading the supply circuits, add together the ampere ratings of all devices
installed on the same circuit as the device being installed. Compare this total with the rating limit for
the circuit. The maximum ampere ratings are usually printed on the switch, near their AC power con-
nectors.
Cautions
• Ensure the air flow around the front, sides, and back of the switch is not restricted.
• Ensure the cooling vents are not blocked.
• Do not install the switch in an environment where the operating ambient temperature might exceed
40ºC (104ºF).

Mounting Device
Preparing for Installation
Page 17
Site Requirements
Before installing the unit, verify that the location selected for installation meets the following site requirements.
•General — Ensure that the power supply is correctly installed.
•Power — Ensure that the unit is installed within 1.5 m (5 feet) of a grounded, easily accessible outlet 100-250
VAC, 50-60 Hz.
•Clearance — Ensure that there is adequate frontal clearance for operator access. Allow clearance for
cabling, power connections and ventilation.
•Cabling — Ensure that the cabling is routed to avoid sources of electrical noise such as radio transmitters,
broadcast amplifiers, power lines and fluorescent lighting fixtures.
•Ambient Requirements — Ensure that the ambient unit operating temperature range is 0 to 40ºC (32 to
104ºF) at a relative humidity of up to 95%, non-condensing. Verify that water or moisture cannot enter the
device casing.
Unpacking
This section contains information for unpacking the device, and includes the following topics:
•Package Contents
•Unpacking Essentials
Package Contents
While unpacking the device, ensure that the following items are included:
•The device
•Four rubber feet with adhesive backing
•Rack kit
•An AC power cable
•Console RS-232 cable with DB-9 connector
•Documentation CD
Unpacking Essentials
Note
Before unpacking the device, inspect the package and report any evidence of damage immediately.
To unpack the device perform the following:
1. It is recommended to put on an ESD wrist strap and attach the ESD clip to a metal surface to act as ground.
An ESD strap is not supplied with the device.
2. Place the container on a clean flat surface and cut all straps securing the container.
3. Open the container.
4. Carefully remove the device from the container and place it on a secure and clean surface.
5. Remove all the packaging material.
6. Inspect the product for damage. Report any damage immediately.
If any item is found missing or damaged, please contact your local D-Link reseller for replacement.

Mounting Device
Installing the Device
Page 18
Installing the Device
The device can be installed on a flat surface or mounted in a rack. This section includes the following topics:
•Desktop or Shelf Installation
•Rack Installation
Desktop or Shelf Installation
When installing the switch on a desktop or shelf, the rubber feet included with the device should first be attached.
Attach these cushioning feet on the bottom at each corner of the device.
Ensure the surface is be able to support the weight of the device and the device cables.
To install the device on a surface, perform the following:
1. Attach the rubber feet on the bottom of the device. The following figure illustrates the rubber feet installation
on the device.
Figure 8: Installing Rubber Feet
2. Set device down on a flat surface, while leaving 2 inches on each side and 5 inches at the back.
3. Ensure that the device has proper ventilation by allowing adequate space for ventilation between the device
and the objects around the device.

Mounting Device
Installing the Device
Page 19
Rack Installation
The device can be mounted in an EIA standard-sized, 19-inch rack, which can be placed in a wiring closet with
other equipment. To install, the device the mounting brackets must first be attached on the devices’s sides.
Notes
• Disconnect all cables from the unit before mounting the device in a rack or cabinet.
• When mounting multiple devices into a rack, mount the devices from the bottom up.
To install the device in a rack, perform the following:
1. Place the supplied rack-mounting bracket on one side of the device ensuring the mounting holes on the
device line up to the mounting holes on the rack mounting bracket. The following figure illustrates where to
mount the brackets.
Figure 9: Attaching the Mounting Brackets
2. Insert the supplied screws into the rack mounting holes and tighten with a screwdriver.
3. Repeat the process for the rack-mounting bracket on the other side of the device.
4. Insert the unit into the 19-inch rack ensuring the rack-mounting holes on the device line up to the mounting
hole on the rack. The following figure illustrates lining up and mounting the device in the rack.

Mounting Device
Installing the Device
Page 20
Figure 10: Mounting Device in a Rack
5. Secure the unit to the rack with the rack screws (not provided). Fasten the lower pair of screws before the
upper pair of screws. This ensures that the weight of the unit is evenly distributed during installation. Ensure
that the ventilation holes are not obstructed.
Note
To maximize switch performance, clean the fan regularly.
Optional Redundant Power Supply
The switch supports an optional Redundant Power Supply (RPS), that can supply power
to the switch in the event of failure of the internal power supply. The DES-3252P
supports only the DPS-600 device.
Caution
The optional RPS is not hot swappable. Do not attempt to replace it while the system is in operation.