Table of Contents

INTRODUCTION

1

FAST ETHERNET TECHNOLOGY

1

GIGABIT ETHERNET TECHNOLOGY

1

SWITCHING TECHNOLOGY

2

FEATURES

2

Ports

2

Performance features

3

Management

3

UNPACKING AND SETUP

4

UNPACKING

4

INSTALLATION

4

Desktop or Shelf Installation

4

Rack Installation

5

POWER ON

6

Power Failure

6

IDENTIFYING EXTERNAL COMPONENTS

7

FRONT PANEL

7

REAR PANEL

7

SIDE PANELS

8

OPTIONAL PLUG-INMODULES

8

100BASE-TX Module

9

100BASE-FX (SC) Fiber Module

9

100BASE-FX (MT-RJ) Fiber Module

9

1000BASE-SX Gigabit Module

10

1000BASE-LX Gigabit Module

10

1000BASE-T Copper Gigabit Module

11

LED INDICATORS

11

CONNECTING THE SWITCH

12

SWITCH TO END NODE

12

SWITCH TO HUB OR SWITCH

12

10BASE-T Device

13

100BASE-TX Device

13

SWITCH MANAGEMENT CONCEPTS

14

LOCAL CONSOLE MANAGEMENT

14

Diagnostic (console) port (RS-232 DCE)

14

IP ADDRESSES AND SNMP COMMUNITY NAMES

15

TRAPS

15

MIBS

16

PACKET FORWARDING

16

Aging Time

16

Filtering Database

17

SPANNING TREE ALGORITHM

17

STA Operation Levels

17

On the Bridge Level

18

On the Port Level

18

User-Changeable STA Parameters

18

Illustration of STA

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D-Link DES-3225G manual Table of Contents

DES-3225G specifications

The D-Link DES-3225GF and DES-3225G are both robust Ethernet switches designed to meet the networking needs of small to medium-sized enterprises and organizations. These devices are part of D-Link's comprehensive range of unmanaged layer 2 switches, known for their reliability and ease of use.

The DES-3225GF features a total of 25 Ethernet ports, including 24 10/100Base-TX ports and 1 Gigabit SFP slot, while the DES-3225G also comes with 25 ports but includes 24 10/100/1000 Mbps copper ports. Both models support Auto-MDI/MDI-X for seamless connection setup without the need for crossover cables, simplifying the deployment process.

One of the standout features of these switches is their wire-speed performance that enables high-speed data transfers and efficient traffic management. Each port is designed to provide non-blocking switching, which ensures that the bandwidth is fully utilized without any packet loss. The switches support IEEE 802.3x flow control, which helps to manage data flow and prevent overflow during heavy traffic periods.

The DES-3225GF and DES-3225G offer users a simple yet efficient way to expand their network. With a plug-and-play design, they require minimal configuration, allowing for quick integration into existing network infrastructures. These switches are equipped with a durable chassis, ensuring they can withstand the rigors of a busy IT environment.

Both models boast energy-efficient technologies that comply with IEEE 802.3az, which helps in reducing power consumption during periods of inactivity. By detecting link status and adjusting power accordingly, these switches contribute to a more sustainable networking solution.

In terms of form factor, the DES-3225GF and DES-3225G are rack-mounted, making them suitable for integration into standard network cabinets. This design ensures that the devices can be efficiently managed alongside other network equipment.

For management and security, the switches support features such as VLAN tagging and port security, allowing network administrators to segment traffic and protect the network from unauthorized access. With their sturdy build, innovative features, and straightforward implementation, the D-Link DES-3225GF and DES-3225G are ideal choices for organizations looking to enhance their network performance while keeping costs manageable.