Resumen del contenido incluido en la página 1
D-Link ™ DES-1024D
24-Port 10/100/1000Mbps
Ethernet Switch
Manual
Building Networks for People
RECYCLABLE
(November 2005)
P/N: 2907D1024D16008
Resumen del contenido incluido en la página 2
TABLE OF CONTENTS About This Guide ......................................................... 1 PURPOSE ..........................................................................................1 TERMS/USAGE.................................................................................1 OVERVIEW OF THIS USER’S GUIDE................................................1 Introduction .................................................................. 2 FAST ETHERNET TECHNOLOGY..................
Resumen del contenido incluido en la página 3
ABOUT THIS GUIDE Congratulations on your purchase of the DES-1024D 24-port 10/100Mbps Fast Ethernet Switch. This device integrates 100Mbps Fast Ethernet and 10Mbps Ethernet network capabilities into one highly flexible solution. Purpose This guide discusses how to install your DES-1024D. Terms/Usage In this guide, the term “Switch” (first letter upper case) refers to your 24-port 10/100Mbps Fast Ethernet Switch, and ”switch” (first letter lower case) refers to other Ethernet switche
Resumen del contenido incluido en la página 4
INTRODUCTION This chapter describes the features of the DES-1024D and some background information about Ethernet/Fast Ethernet switching technology. Fast Ethernet Technology Ethernet, along with its speedier counterpart Fast Ethernet, is the most popular networking standard in use today. 100BaseT Fast Ethernet is an extension of the 10BaseT Ethernet standard, designed to raise the data transmission capacity of 10BaseT from 10Mbits/sec to 100Mbits/sec. An important strategy incorporated
Resumen del contenido incluido en la página 5
Switching Technology Switching is a cost-effective way of increasing the total network capacity available to users on a LAN. If an Ethernet network begins to display symptoms of congestion, low throughput, slow response times, and high rates of collision, installing a switch to an network can preserve much or all of the existing network's cabling and workstation interface card infrastructure while still greatly enhancing the throughput for users. A switch is a viable solution even if de
Resumen del contenido incluido en la página 6
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. Features The DES-1024D is a high-performance switch designed specifically for environments where traffic on the network and the number of users increase continuously. 24-port 10/100BASE Ethernet Switch with RJ-45 connector
Resumen del contenido incluido en la página 7
The implementation of QoS (Quality of Service) and benefits of using 802.1p priority queuing are described here. Advantages of QoS QoS is an implementation of the IEEE 802.1p standard that allows network administrators a method of reserving bandwidth for important functions that require a large bandwidth or have a high priority, such as VoIP (voice-over Internet Protocol), web browsing applications, file server applications or video conferencing. Not only can a larger bandwidth be creat
Resumen del contenido incluido en la página 8
Mapping QoS on the Switch The picture above shows the default priority setting for the Switch. Class-1 has higher priority than Class-0 on the Switch. In order to implement QoS, the user is required to instruct the Switch to examine the header of a packet to see if it has the proper identifying tag tagged. Then the user may forward these tagged packets to designated queues on the Switch where they will be emptied, based on priority. "The DUT support strict mode for 802.1p QoS. The unta
Resumen del contenido incluido en la página 9
first. UNPACKING AND SETUP Unpacking Open the shipping cartons of the DES-1024D and carefully unpack its contents. The carton should contain the following items: One DES-1024D 24-port 10/100Mbps Fast Ethernet Switch One AC power cord Four rubber feet to be used for shock cushioning Screws and two mounting brackets Quick Installation Guide Manual If any item is found missing or damaged, please contact your local reseller for replacement. Setup The setup of the DES-1024D
Resumen del contenido incluido en la página 10
Desktop Installation When installing the DES-1024D on a desktop or shelf, the rubber feet included with the device should be attached first, to minimize scratching or scarring of the surface on which the Switch is placed. Attach these cushioning feet on the bottom at each corner of the device. Allow enough ventilation space between the device and the objects around it. Fast Ethernet Switch installed on a Desktop or Shelf Rack Mounting The DES-1024D can be mounted in an EIA standar
Resumen del contenido incluido en la página 11
Attaching the mounting brackets to the Switch Installing the Switch in an equipment rack 9
Resumen del contenido incluido en la página 12
IDENTIFYING EXTERNAL COMPONENTS Front Panel The figure below shows the front panels of the switch. 24-port 10/100Mbps Fast Ethernet Switch LED Indicator Panel Refer to the next chapter for detailed information about each of the switch’s LED indicators. Power (PWR) This green LED indicator illuminates when the switch is receiving power; otherwise, it is off. Link / Activity This green LED indicator illuminates when the port is connected to a Fast Ethernet or Ethernet sta
Resumen del contenido incluido en la página 13
100Mbps (green) This green LED indicator illuminates when the port is connected to a 100Mbps Fast Ethernet station. The LED does not illuminate when the port is connected to 10Mbps Ethernet station. Twisted-Pair Ports These ports support automatic MDI/MDIX crossover detection function providing true ‘plug and play’ connectivity, which eliminates the need for crossover cables or uplink ports. Any port can be simply plugged to a server, workstation, or hub using the usual straight-th
Resumen del contenido incluido en la página 14
TECHNICAL SPECIFICATIONS General IEEE 802.3 10BASE-T Ethernet Standards IEEE 802.3u 100BASE-TX Fast Ethernet IEEE 802.1p Compliance Protocol CSMA/CD Ethernet: 10Mbps (half duplex), 20Mbps (full-duplex) Data Transfer Rate Fast Ethernet: 100Mbps (half duplex), 200Mbps (full- duplex) Topology Star 10BASET: 2-pair UTP Cat. 3,4,5, EIA/TIA- 568 100-ohm STP Network Cables 100BASE-TX: 2-pair UTP Cat. 5, EIA/TIA-568 100-ohm STP Number of 24 x 10/100Mbps Auto-MDI ports Ports Physical an
Resumen del contenido incluido en la página 15
TECHNICAL SPECIFICATIONS Performance Transmits Store-and-forward Method: RAM Buffer: 1.25 MBits per device Filtering 8K entries per device Address Table: Packet Filtering/ 10Mbps Ethernet: 14,880/pps Forwarding 100Mbps Fast Ethernet: 148,800/pps Rate: MAC Address Automatic update Learning: 13
