D-Link DES-1250G User Manual

D-Link™

DES-1250G

Web Smart 48-Port 10/100Mbps+2-Port Combo 10/100/1000Mbps

Copper/SFP(Mini GBIC) Gigabit Switch

Manual

Second Edition

Building Networks for People

RECYCLABLE

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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.

FCC Warning This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with this user’s guide, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

CE Mark Warning This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to take adequate measures.

Warnung!

Dies ist ein Produkt der Klasse A. Im Wohnbereich kann dieses Produkt Funkstoerungen verursachen. In diesem Fall kann vom Benutzer verlangt werden, angemessene Massnahmen zu ergreifen.

Precaución!

Este es un producto de Clase A. En un entorno doméstico, puede causar interferencias de radio, en cuyo case, puede requerirse al usuario para que adopte las medidas adecuadas.

Attention!

Ceci est un produit de classe A. Dans un environnement domestique, ce produit pourrait causer des interf érences radio, auquel cas l`utilisateur devrait prendre les mesures adéquates.

Attenzione! Il presente prodotto appartiene alla classe A. Se utilizzato in ambiente domestico il prodotto può causare

interferenze radio, nel cui caso è possibile che l`utente debba assumere provvedimenti adeguati.

VCCI Warning

TABLE OF CONTENT

About This Guide...................................................................................................................................................................................... 5

Purpose ................................................................................................................................................................................................. 5

Terms/Usage......................................................................................................................................................................................... 5

Introduction............................................................................................................................................................................................... 6

Gigabit Ethernet Technology................................................................................................................................................................ 6

Fast Ethernet Technology..................................................................................................................................................................... 6

Switching Technology.......................................................................................................................................................................... 6

VLAN (Virtual Local Area Network)................................................................................................................................................... 7

Features................................................................................................................................................................................................. 8

Unpacking and Installation ....................................................................................................................................................................... 9

Unpacking............................................................................................................................................................................................. 9

Installation ............................................................................................................................................................................................ 9

Rack Mounting ..................................................................................................................................................................................... 9

Connecting Network Cable................................................................................................................................................................... 9

AC Power............................................................................................................................................................................................ 10

Identifying External Components........................................................................................................................................................... 11

Front Panel.......................................................................................................................................................................................... 11

Rear Panel........................................................................................................................................................................................... 11

Understanding LED Indicators............................................................................................................................................................... 12

Power and System LEDs .................................................................................................................................................................... 12

Ports 1~48 10/100M Status LEDs.......................................................................................................................................................12

Ports 49~50 Gigabit Status LEDs....................................................................................................................................................... 12

Ports 49~ 50 mini-GBIC Status LEDs................................................................................................................................................ 13

Configuration.......................................................................................................................................................................................... 14

Installing the Web Management Utility.............................................................................................................................................. 14

Discovery List..................................................................................................................................................................................... 14

Monitor List........................................................................................................................................................................................ 15

Device Setting................................................................................................................. .................................................................... 15

Toolbar................................................................................................................................................................................................ 16

Configuring the Switch....................................................................................................................................................................... 17

Login ................................................................................................................................................................................................... 17

Setup Menu......................................................................................................................................................................................... 18

Configuring Setup Setting................................................................................................................................................................... 18

Port Settings.................................................................................................................................................................................... 18

VLAN Settings (Virtual Local Area Network)............................................................................................................................... 19

Trunk Setting .................................................................................................................................................................................. 20

Mirror Setting.................................................................................................................................................................................. 20

Device Status .................................................................................................................................................................................. 21

Statistic............................................................................................................................................................................................ 21

System Setting ................................................................................................................................................................................ 22

Trap Setting..................................................................................................................................................................................... 22

Set Password................................................................................................................................................................................... 22

Backup Setting................................................................................................................................................................................ 22

Reset Setting ................................................................................................................................................................................... 23

Logout ................................................................................................................................................................................................. 23

Technical Specifications......................................................................................................................................................................... 24

ABOUT THIS GUIDE

Congratulations on your purchase of the Web Smart 48+2G-Port 10/100/1000Mbps/SFP Sw itch. This device integrates 1000Mbps Gigabit Ethernet, 100Mbps Fast Ethernet, and 10Mbps Ethernet network capabilities in a highly flexible package.

Purpose

This guide discusses how to install your Web Smart 48+2G-Port 10/100/1000Mbps/SFP Switch.

Terms/Usage

In this guide, the term “Switch” (first letter upper case) refers to your Web Smart 48+2G-Port 10/100/1000Mbps Switch, and “switch” (first letter lower case) refers to other Ethernet switches.

INTRODUCTION

This chapter describes the features of the Web-Smart 48+2G-Port 10/100/1000Mbps/SFP Switch and some background information about Ethernet/Fast Ethernet/Gigabit Ethernet switching technology.

Gigabit Ethernet Technology

Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and support for CSMA/CD protocol, full-duplex, flow control, and management objects, but with a tenfold increase in theoretical throughput over 100-Mbps Fast Ethernet and a hundredfold increase over 10-Mbps Ethernet. Since it is compatible with all 10-Mbps and 100-Mbps Ethernet environments, Gigabit Ethernet provides a straightforward upgrade without wasting a company’s existing investment in hardware, software, and trained personnel.

The increased speed and extra bandwidth offered by Gigabit Ethernet are essential to coping with the network bottlenecks that frequently develop as computers and their busses get faster and more users use applications that generate more traffic. Upgrading key components, such as your backbone and servers to Gigabit Ethernet can greatly im prove network res ponse times as well as signifi cantly speed up the traffic between your subnets.

Gigabit Ethernet enables fast optical fiber connections to support video conferencing, complex imaging, and similar data-intensive applications. Likewise, since data transfers occur 10 times faster than Fast Ethernet, servers outfitted with Gigabit Eth ernet NIC’s are able to perform 10 times the number of operations in the same amount of time.

In addition, the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost-effective method to take advantage of today and tomorrow’s rapidly improving switching and routing internetworking technologies. With expected advances in the coming years in silicon technology and digital signal processing that will enable Gigabit Ethernet to even tually operate over unshielded twisted-pair (UTP) cabling, outfitting your network with a powerful 1000-Mbps-capable backbone/server conn ection creates a flexible foundati on for the next generation of network technology products.

Fast Ethernet Technology

The growing importance of LANs and the increasing complexity of desktop computing applications are fueling the need for high performance networks. A number of high-speed LAN technologies have been proposed to provide greater bandwidth and improve client/server response times. Among them, 100BASE-T (Fast Ethernet) provides a non-disruptive, smooth evolution from the current 10BASE-T technology. The n on-disruptive and smooth evolution nature, and t he dominati ng potential m arket base, virtually guara ntees cost-effective and high performance Fast Ethernet solutions.

100Mbps Fast Ethernet is a standard specified by the IEEE 802.3 LAN committee. It is an extension of the 10Mbps Ethernet standard with the ability to transmit and receive data at 100Mbps, while maintaining the CSMA/CD Ethernet protocol. Since the 100Mbps Fast Ethernet is compatible with all other 10Mbps Ethernet environments, it provides a straightforward upgrade and takes advantage of the existing investment in hardware, software, and personnel training.

Switching Technology

Another approach to pushing beyond the limits of Ethernet technology is the development of switching technology. A switch bridges Ethernet packets at the MAC address level of the Ethernet protocol transmitting among connected Ethernet or Fast Ethernet LAN segments.

Switching is a cost-effective way of increasing the total network capacity available to users on a local area network. A switch increases capacity and decreases network loading by dividing a local area network into different se gments, which do not compete with each othe r for network transmission capacity.

The switch acts as a high-speed selective bridge between the individual seg ments. The switch, withou t interfering with any other segments, automatically forwards traffic that needs to go from one segment to another. By doing this the total network capacity is multiplied, while still maintaining the same network cabling and adapter cards.

Switching LAN technology is a marked improvement over the previous generation of network bridges, which were characterized by higher latencies. Routers ha ve also been used to segment local area networks, but the cost of a router, the setup and maintenance required make routers relatively impractical. Today switches are an ideal solution to most kinds of local area network congestion problems.

VLAN (Virtual Local Area Network)

A VLAN is a group of end-stations that are not constrained by their physical location and can communicate as if a common broadcast domain, a LAN. The primary utility of using VLAN is to reduce latency and the need for routers, by using faster switching instead. Other VLAN utility includes:

Security, Security is increased with the reduction of opportunity in eavesdropping on a broadcast network because data will be switched to only those confidential users within the VLAN.

Cost Reduction, VLANs can be used to create multiple broadcast domains, thus eliminating the need of expensive routers. Port-based (or port-group) VLAN is the common method of implementing a VLAN, and is the one supplied in the Switch.

Features

 48×10/100Mbps Auto-negotiation Fast Ethernet RJ-45 ports  2×10/100/1000Mbps Auto-negotiation Gigabit RJ-45 ports  2×mini-GBIC/SFP ports, share with the 2 gigabit copper ports  All RJ-45 ports support auto MDI/MDIX, so there is no need to use cross- over cables or an up-link port  Half-duplex transfer mode for 10/100Mbps RJ45 ports  Full-duplex transfer mode for 10/100/1000Mbps RJ45 ports  Store-and-Forward switching scheme capability to support rate adaptation and ensure data integrity  Up to 8K unicast addresses entities per device, self-learning, and table aging

 1536KBytes packet buffer  Supports IEEE 802.3x flow control for full-duplex mode ports  Supports Back-pressure flow control fo r hal f -d u pl e x m ode po rt s  Supports 802.1Q VLAN  Supports Port-base QoS  Supports seven Port-base Trunking group  Supports Port Mirroring  Supports Port-setting for Speed/Disable, Flow control  Easy configuration via Web Browser  Easy setting via Web Management Utility  Standard 19” Rack-mount si ze

UNPACKING AND INSTALLATION

This chapter provides unpacking and installation information for the Switch.

Unpacking

Open the shipping cartons of the Switch and carefully unpacks its contents. The carton should contain the following items:

 One Web Smart 48+2G-Port 10/ 10 0/ 1 0 00Mbps/SFP Switch  One AC power cord, suitable for your area’s electrical power conn ections  Four rubber feet to be used for shock cushioning  Screws and two mounting brackets  CD-Rom with Web Management Utility and User’s Guide

If any item is found missing or damaged, please contact your local reseller for replacement.

Installation

The site where you install the hub stack may greatly affect its performance. When installing, consider the following pointers: Install the Switch in a fairly cool and dry place. See Technical Specifications for the acceptable temperature and humidity op erating

ranges. Install the Switch in a site free from strong electromagnetic field generators (such as motors), vibration, dust, and direct exposure to

sunlight. Leave at least 10cm (about 4 inches) of space at the front and rear of the hub for ventilation. Install the Switch on a sturdy, level surface that can support its weight, or in an EIA standard-size equipment rack. For information on

rack installation, see the next section, titled Rack Mounting. When installing the Switch on a level surface, attach the rubber feet to the bottom of each device. The rubber feet cushion the hub an d

protect the hub case from scratching.

Rack Mounting

The Switch can be mounted in an EIA standard-size, 19-inch rack, which can be placed in a wiring closet with other e quipment. Attach the mounting brackets at the Switch’s front panel (one on each side), and secure them with the provided screws.

Figure 1. Combine the Switch with the provided screws

Then, use screws provided with the equipment rack to mount each Switch in the rack.

Figure 2. Mount the Switch in the rack

Connecting Network Cable

The Switch supports 10Mbps Ethernet or 100Mbps Fast Ethernet and it runs both in half- and full- duplex mode using two pairs of Category 5 cables.

The Switch also supports 2-Ports Gigabit Ethernet that runs in Auto-negotiation mode and 10Mbps Ethernet or 100Mbps Fast Ethernet that runs both in half- and full- duplex mode and 1000Mbps Gigabit Ethernet runs in full-duplex mode using four pairs of Category 5 Cables.

These RJ-45 ports are Auto-MDI type port. The Switch can auto tr ansform to MDI-II or MDI-X type, so you can just make an easy connection that without worrying if you are using a standard or crossover RJ45 cable.

There are additional two mini-GBIC ports for optional mini-GBIC/SFP modules.

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