D-Link DGS-1248T - Switch Bedienungsanleitung
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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.
© 2004 D-Link Computer Corporation. All rights reserved.
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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!
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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
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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
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Device Setting........................................................................................... 16
Toolbar...................................................................................................... 17
Configuring the Switch ............................................................................. 18
Login......................................................................................................... 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)
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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.
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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.
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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.
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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
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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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