Cisco Systems DGS-1224T User Manual

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D-Link DGS-1224T

24-Port10/100/1000Mbps

Gigabit Ethernet Switch + 2-Portmini GBICWeb-SmartSwitch

User’s Guide

First Edition

Building Networks for People

TABLE OF CONTENTS

 

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

1

Purpose ............................................................................................

1

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

1

Introduction..........................................................................................

2

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

2

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

3

Switching Technology .....................................................................

4

IEEE 802.1Q VLAN........................................................................

4

Features............................................................................................

5

Technical Specifications ..................................................................

6

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 .....................................................................................

17

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

17

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

17

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

18

Menu Toolbar.............................................................................

18

Discovery List............................................................................

20

Monitor List ...............................................................................

20

Device Setting............................................................................

22

Web-basedUtility ..........................................................................

25

Login..........................................................................................

25

Tool Menu..................................................................................

27

Setup Menu ....................................................................................

29

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

30

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

30

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

32

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

33

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

35

Configuration > Jumbo Frame ...................................................

36

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

36

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

39

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

39

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

44

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

46

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

47

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

47

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

48

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

49

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

52

Security > Mac Address Table > Dynamic Forwarding Table ..

53

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

54

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ABOUT THIS GUIDE

Congratulations on your purchase of the DGS-1224T24-Port10/100/1000Mbps Gigabit Ethernet +2-PortMini GBICWeb-SmartSwitch. 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 and use the configuration functions of the DGS-1224TWeb-SmartSwitch.

Terms/Usage

In this guide, the term “Switch” (first letter capitalized) refers to the DGS-1224TWeb-SmartSwitch, 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.

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INTRODUCTION

This chapter describes the features of the DGS-1224Tand provides 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-MbpsFast Ethernet and a hundredfold increase over10-MbpsEthernet. Since it is compatible with all10-Mbpsand100-MbpsEthernet environments, Gigabit Ethernet provides a straightforward upgrade without wasting existing investments in hardware, software, and trained personnel.

The increased speed and extra bandwidth offered by Gigabit Ethernet is essential to helping solve 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-intensiveapplications. 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.

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In addition, the phenomenal bandwidth delivered by Gigabit Ethernet is the most cost-effectivemethod 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 unshieldedtwisted-pair(UTP) cabling, outfitting your network with a powerful1000-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-speedLAN technologies have been proposed to provide greater bandwidth and improve client/server response times. Among them,100BASE-T(Fast Ethernet) provides anon-disruptive,smooth evolution from the current10BASE-Ttechnology. Thenon-disruptiveand smooth evolution nature, and the dominating potential market base, virtually guaranteescost-effectiveand 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 utilizes existing investments in hardware, software, and personnel training.

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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-effectiveway 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 don’t compete with each other for network transmission capacity.

The switch acts as a high-speedselective 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.

IEEE 802.1Q VLAN

A Virtual Local Area Network (VLAN) is a group of end-stationsthat are not constrained by their physical location and can communicate as if located on a common broadcast domain, or a LAN. The primary utility of using VLAN is to reduce latency and need for routers, in favor of using faster switching technologies instead. The IEEE 802.1Q specification provides a standard for tagging Ethernet frames with VLAN membership information. The 802.1Q standard is intended to address the problem of how to break large networks into smaller parts

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so broadcast and multicast traffic use valuable network bandwidth more efficiently. Additional VLAN benefits include:

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.

VID: VLAN ID is an identification of up to 4094 possible VLANs. A VID of 0 is used to identify priority frames. The value 4095 (FFF) is reserved, so the maximum possible VLAN configurations are 4,094.

Features

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

Supports a packet buffer of up to 512K Bytes

Supports Jumbo frame setting

IGMP Snooping support

IEEE802.1D Spanning Tree

Support static Port Trunk

IEEE802.3x flow control in full duplex mode

Port Mirroring support

IEEE802.1Q VLAN

IEEE802.1p Priority Queues

IEEE802.1x Port-basedAccess Control

Supports Broadcast Storm Control

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Supports Static MAC setting

D-LinkSafeguard Engine support

Supports Simple Network Management Protocol(SNMP)

MIB support for: RFC1213 MIB II, Private MIB

Supports DHCP client

Supports Port -settingfor Speed and Flow control

Easy configuration via Web Browser

Easy setting via Web Management 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.

Technical Specifications

Key Components / Performance

Switching Capacity

48Gbps

10M: 14,880 pps

Max. Forwarding Rate 100M: 148,809 pps 1G: 1,488,095 pps

 

Forwarding Mode

Store and Forward

 

 

Packet Buffer memory 512K Bytes

 

 

 

 

 

SDRAM for CPU

8M Bytes

 

 

 

 

 

 

 

 

 

 

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