D-Link DGS-1248T - Switch User manual

DGS-1248T

48-Port 10/100/1000 Mbps

with 4 Combo Mini GBIC

Gigabit Smart Switch

User Manual

V1.01

TABLE OF CONTENTS

About This Guide.................................................................................1

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

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

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

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

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

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

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

Technical Specifications..................................................................5

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

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

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

Rack Mounting...........................................................................10

Connecting Network Cable........................................................11

AC Power...................................................................................12

Identifying External Components......................................................13

Front Panel.....................................................................................13

Rear Panel......................................................................................14

Understanding LED Indicators ......................................................15

Power and System LEDs ...............................................................15

Configuration.....................................................................................18

Supported web browsers................................................................18

Installing the SmartConsole Utility................................................18

SmartConsole Utility Features.......................................................19

Menu Toolbar.............................................................................19

Discovery List............................................................................21

Monitor List...............................................................................22

Device Setting............................................................................24

Web-based Utility..........................................................................26

Tool Menu..................................................................................28

Setup Menu....................................................................................29

System > System Setting ...........................................................30

System > Trap Setting................................................................31

System > Port Setting.................................................................32

System > SNMP Setting ............................................................34

System > Password Access Control...........................................36

Configuration > 802.1Q VLAN.................................................36

Configuration > Trunking..........................................................39

Configuration > IGMP Snooping...............................................40

Configuration > 802.1D Spanning Tree.....................................44

Configuration > Port Mirroring..................................................46

QoS > 802.1p Default Priority...................................................47

Security > Safeguard Engine......................................................48

Security > Broadcast Storm Control..........................................48

Security > 802.1X Setting..........................................................48

Security > Mac Address Table > Static MAC............................51

Security > Mac Address Table > Dynamic Forwarding Table ..52

Monitoring > Statistics...............................................................53

ABOUT THIS GUIDE

Thank you and congratulations on your purchase of the DGS-1248T

48-Port 10/100/1000 Mbps with 4 Combo Mini GBIC Gigabit Smart

Switch. This device integrates 1000Mbps Gigabit Ethernet, 100Mbps

Fast Ethernet and 10Mbps Ethernet network capabilities in a highly

flexible package.

Purpose

This guide will show you how to install and use the configuration

functions of the DGS-1248T Web-Smart Switch step-by-step.

Terms/Usage

In this guide, the term “Switch” (first letter capitalized) refers to the

DGS-1248T Smart Switch, and “switch” (first letter lower case) refers

to other Ethernet switches. Some technologies refer to terms “switch”,

“bridge” and “switching hubs” interchangeably, and both are

commonly accepted for Ethernet switches.

INTRODUCTION

This chapter will describe the features of the DGS-1248T and provide

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, and management objects, but with a tenfold increase in

theoretical throughput of 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 existing

investments in hardware, software, or trained personnel.

The increased speed and extra bandwidth offered by Gigabit Ethernet

is essential to help solving network bottlenecks that frequently

develop as more advanced computer users and newer applications

continue to demand greater network resources. Upgrading key

components, such as backbone connections and servers to Gigabit

Ethernet technology can greatly improve network response times as

well as significantly speed up the traffic between 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 which will create 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.

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 utilizes

existing investments in hardware, software, and personnel training.

Switching Technology

Another approach to push 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 won’t 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.

Features

♦Address Table: Supports up to 8K MAC address per device

♦Supports a packet buffer of up to 1024K Bytes

♦IGMP Snooping support

♦IEEE802.1D Spanning Tree

♦Support static Port Trunk

♦Port Mirroring support

♦IEEE802.1Q VLAN

♦IEEE802.1p Priority Queues

♦IEEE802.1X Port-based Access Control

♦Supports Broadcast Storm Control

♦Supports Static MAC setting

♦D-Link Safeguard Engine support

♦Supports Simple Network Management Protocol(SNMP)

♦MIB support for: RFC1213 MIB II, Private MIB

♦Supports DHCP client

♦Supports Port setting for Speed, Duplex Mode

♦Easy configuration via Web Browser　

♦Easy setting via SmartConsole Utility

♦Firmware backup and upload via Web GUI

♦System reboot via Web GUI

♦Provides parallel LED display for port status such as link/act,

speed, etc.

♦Reset configuration (h

♦IEEE802.3x flow control in full duplex mode

ardware and Web GUI)

Technical Specifications

Key Components / Performance

Switching Capacity 96Gbps

Max. Forwarding Rate

10M: 14,880 pps

100M: 148,809 pps

1G: 1,488,095 pps

Forwarding Mode Store and Forward

Packet Buffer memory 1024K Bytes

SDRAM for CPU 8M Bytes

Flash Memory Prom 2M Bytes

Port Functions

LAN

- 48 x 10/100/1000BaseT ports

- Compliant with the following standards:

1. IEEE 802.3 compliance

2. IEEE 802.3u compliance

3. IEEE 802.3ab compliance

4. Support Full Duplex at 10/100Mbps and

1000Mbps only for SFP ports

Combo ports in the

front panel

- 4 SFP Combo Ports (port 45~48)

- SFP Transceivers Supported:

1. DEM-310GT (1000BASE-LX), up to

10km

2. DEM-311GT (1000BASE-SX), up to

550m

3. DEM-314GT (1000BASE-LH), up to

50km

4. DEM-315GT (1000BASE-ZX), up to

80km

5. DEM-312GT2 (1000BASE-SX), up to

2km

-WDM Transceivers Supported:

1. DEM-330T (TX-1550/RX-1310nm), up

to 10km, Single-Mode

2. DEM-330R (TX-1310/RX-1550nm), up

to 10km, Single-Mode

3. DEM-331T (TX-1550/RX-1310nm), up

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