D-Link DGS-1248T - Switch Bedienungsanleitung

D-Link™ DGS-1248T

WebSmart 48-Port 10/100/1000Mbps + 4

Combo SFP(Mini GBIC) Gigabit Switch

Manual

Second Edition

Building Networks for People

RECYCLABLE

Information in this document is subject to change without notice.

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.

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!

iii

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 interférences 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 Manual ......................................................................................... 1

Purpose ....................................................................................................... 1

Terms/Usage ............................................................................................... 1

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

Gigabit Ethernet Technology...................................................................... 2

Fast Ethernet Technology ........................................................................... 3

Switching Technology ................................................................................ 3

VLAN (Virtual Local Area Network)......................................................... 4

Features....................................................................................................... 4

Unpacking and Installation ............................................................................. 6

Unpacking................................................................................................... 6

Installation .................................................................................................. 6

Rack Mounting ........................................................................................... 7

Connecting Network Cable......................................................................... 8

AC Power.................................................................................................... 8

Identifying External Components ................................................................... 9

Front Panel.................................................................................................. 9

LED Indicator ............................................................................................. 9

Reset ........................................................................................................... 9

Rear Panel................................................................................................. 10

Understanding LED Indicators ..................................................................... 11

Power and System LEDs .......................................................................... 11

Ports 1~48 Status LEDs ............................................................................ 11

mini-GBIC Port 45F ~ 48F LEDs............................................................. 12

Configuration ................................................................................................ 13

Installing the Web Management Utility.................................................... 13

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

Monitor List .............................................................................................. 14

Device Setting........................................................................................... 16

Toolbar...................................................................................................... 17

Configuring the Switch ............................................................................. 18

Setup Menu ............................................................................................... 20

Configuring Setup Setting......................................................................... 20

Port Settings .......................................................................................... 21

VLAN Settings (Virtual Local Area Network) ..................................... 22

Trunk Setting ........................................................................................ 24

Mirror Setting........................................................................................ 25

Spanning Tree Setting........................................................................... 26

SNMP Setting ....................................................................................... 28

Jumbo Frame Setting ............................................................................ 32

QoS Setting ........................................................................................... 32

Device Status ........................................................................................ 33

Statistics ................................................................................................ 34

System Setting ...................................................................................... 36

Trap Setting........................................................................................... 37

Password Setting................................................................................... 38

Backup Setting...................................................................................... 38

Reset Setting ......................................................................................... 39

Logout....................................................................................................... 39

Technical Specifications ............................................................................... 40

Warranty and Registration Information

Warranty and Registration Information (USA Only)

ABOUT THIS MANUAL

Congratulations on your purchase of the DGS-1248T Web Smart 48-Port

10/100/1000Mbps Gigabit Switch. This device integrates 1000Mbps Gigabit

Ethernet, 100Mbps Fast Ethernet, and 10Mbps Ethernet network capabilities

in a highly flexible package.

Purpose

This manual discusses how to install your 48-Port 10/100/1000Mbps Gigabit

Web Smart Switch.

Terms/Usage

In this manual, the term “Switch” (first letter upper case) refers to your Web

Smart Switch, and “switch” (first letter lower case) refers to other Ethernet

switches.

INTRODUCTION

This chapter describes the features of the DGS-1248T Web Smart 48-Port

10/100/1000Mbps Gigabit 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 improve network response times as

well as significantly 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 Ethernet 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. And with

expected advances in the coming years in silicon technology and digital signal

processing that will enable Gigabit Ethernet to eventually operate over

unshielded twisted-pair (UTP) cabling, outfitting your network with a

powerful 1000-Mbps-capable backbone/server connection creates a flexible

foundation 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 non-disruptive and smooth evolution

nature, and the dominating potential market base, virtually guarantees

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

segments, which do not compete with each other for network transmission

capacity.

The switch acts as a high-speed selective bridge between the individual

segments. The switch, without 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 have 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 need for routers, 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.

Features

48×10/100/1000Mbps Auto-negotiation Gigabit Ethernet ports

4 x 1000Mbps SFP(Mini GBIC) (Auto-Sense) for optional SFP(Mini

GBIC) transceiver to extend distance, share with 4 1000BASE-T 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 connection speed 10Mbps and 100Mbps

Full-duplex transfer mode for connection speed of 10Mbps, 100Mbps,

and 1000Mbsps

Wire speed reception and transmission

Store-and-Forward switching scheme capability to support rate

adaptation and ensure data integrity

Up to 16K unicast addresses entities per device, self-learning, and table

aging

1632KBytes packet buffer

Supports IEEE 802.3x flow control for full-duplex mode ports

Supports 802.1Q VLAN

Supports IEEE 802.1p QoS

Supports Trunk

Supports Port-mirroring

Support Jumbo-frame setting

Supports IEEE 802.1D Spanning Tree protocol

Support Simple Network Management Protocol (SNMP)

Supports MIB for:

RFC1213 MIB II.

Private MIB.

Supports Port-setting for Speed/Disable, Flow control

Easy configuration via Web Browser

Easy setting via Web Management Utility

Standard 19” Rack-mount size

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