D-Link DES-1024D User's Manual
Contents
1. Forwarding Rate 100Mbps Fast Ethernet 148 800 pps a Learning 132. environments it provides a straightforward upgrade and takes advantage of the existing investment in hardware software and personnel training 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 demanding applications such as multimedia production and video conferencing are on the horizon The most promising techniques as well as the best return on investment could well consist of installing the right mixture of Ethernet switches A switch increases capacity and decreases network loading by dividing a local area network into different LAN segments Dividing a LAN into multiple segments is one of the most common ways of increasing available bandwidth If segmented correctly most network traffic will remain within a single segment enjoying the full line speed bandwidth of that segment Switches provide full line speed dedicated to bandwidth for all connections This is in contrast to the hubs which use the traditional shared networking topology where the connected nodes contend for the same network bandwid
3. D Link DES 1024D 24 Port 10 100 1000Mbps Ethernet Switch Manual R a Building Networks for People RECYCLABLE November 2005 P N 2907D1024D16008 TABLE OF CONTENTS About This Guide seene casute vociava we ethe nn ELAri 1 P RPOS AER 1 TERMS USAGE ug 1 OVERVIEW OF THIS USER S GUIDE orvnnvrrvrnnnnrnvrrvarnrnnvrrvrrvrnvnnenrer 1 Introd cese r a 2 FAST ETHERNET TECHNOLOGY sssesseeessessereresssrseertsssesersessesesee 2 SWITCHING TECHNOLOGY sessssssesssesssessseeseesseesseesnecsneeseeseeeees 3 rss 4 IEEE 801 1P AND QOS senanavnnnnnnnnvnnenarnarnnnrnerneraeneeneen 5 Unpacking and Selupuusssesepsemseed kne 4 PANG T SETOR RE ET RE EE S 7 DESKTOP INSTALLATION rorvrrvvrvvarvrrnvrrvrvnrnnvvrvrrvrnrnernervrarneenvesvasne 8 RACK MOUNTING sner aaia orrein rate piskede 8 Identifying External Components eoonvnrnravonnnnvnnne 10 FRONT PANED cto toate n anaes 10 Pb 11 Technical SpeahieahonsLuksnsvasssrassnamen 12 Technical Speerneatons munnar 13 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 firs
4. and secure them with the screws provided Attaching the mounting brackets to the Switch Installing the Switch in an equipment rack IDENTIFYING EXTERNAL COMPONENTS Front Panel The figure below shows the front panels of the switch 10 100 Fast Ethernet Switch D Link pes 10240 1 13 gn gn b nn nnm a2 Uninet PITT ud dd 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 10 100 Fast Ethernet Switch D Link s 1024p 1 3 5 7 9 11 13 15 17 19 21 23 E E 8 8 8 8 HE 8 E M Link ACT E 8 EE 8 8 8 8 EM om E m 100Mbps Power E E E 8 8 HE 8 EH 8 EH EH E M Link ACT 8 8 8 8 8 8 8 8 E m 100Mbps 2 4 6 8 10 12 14 16 18 20 22 24 7 Power PWR This green LED indicator otherwise it is off Link Activity illuminates when the switch is receiving power This green LED indicator illuminates when the port is connected to a Fast Ethernet or Ethernet station the indicator blinks when transmitting or receiving data 10 7 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 crosso
5. arefully 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 v Manual If any item is found missing or damaged please contact your local reseller for replacement SEE ee Setup The setup of the DES 1024D can be performed by using the following steps 1 The surface must support at least 11 Ibs 5 kg 2 The power outlet should be within 6 feet 1 42 meters of the device 3 Visually inspect the power cord and see that it is secured fully to the AC power outlet 4 Make sure that there is adequate ventilation around the Switch 5 Do not place heavy objects on the Switch 7 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 comer 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 standard size 19 inch rack in a wiring closet with other equipment Attach the mounting brackets on each side of the Switch s front panel as shown in the illustration below
6. ed and duplex modes for each port Supports Auto MDI MDI X on each port eliminating the need for cross over cables or uplink ports Wire speed reception and transmission Store and Forward switching method Integrated address Look Up Engine supports 8K MAC addresses Supports 1 25 Mbits RAM for data buffering Front panel diagnostic LEDs IEEE 802 3x flow control for full duplex Back pressure flow control for half duplex IEEE 802 1p Priority support IEEE802 1P AND QoS The DES 1024D Switches support 802 1p priority queuing Quality of Service 4 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 created but other less critical traffic can be limited so bandwidth can be saved The Switch has separate hardware queues on every physical port to which packets from various applications are mapped to and assigned a priority The illustration below shows how 802 1P priority queuing is implemented on the Switch The eight IEEE 802 1P priority levels defined by the standard are mapped to the two class queues used
7. in the Switch 2 Priority Queues Queues Priority 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 untagged pkt will follow the priority 0 to work i e class 0 Understanding QoS The Switch has two priority queues labeled 1 higher queue and 0 lower queue The eight priority tags specified in IEEE 802 1p are mapped to the Switch s priority tags as follows Priority 0 is assigned to the Switch s QO queue Priority 1 is assigned to the Switch s QO queue Priority 2 is assigned to the Switch s QO queue Priority 3 is assigned to the Switch s QO queue Priority 4 is assigned to the Switch s Q1 queue Priority 5 is assigned to the Switch s Q1 queue Priority 6 is assigned to the Switch s Q1 queue Priority 7 is assigned to the Switch s Q1 queue The Switch uses strict priority for Scheduling Strict priority based scheduling any packets residing in the higher priority queues are transmitted 6 first UNPACKING AND SETUP Unpacking Open the shipping cartons of the DES 1024D and c
8. t letter lower case refers to other Ethernet switches Overview of this User s Guide Introduction Describes the Switch and its features Unpacking and Installation Helps you get started with the basic installation of the Switch Identifying External Components Describes the front panel rear panel and LED indicators of the Switch Technical Specifications Lists the technical general physical and environmental and performance specifications of the Switch 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 by 100BaseT is its use of the Carrier Sense Multiple Access with Collision Detection CSMA CD protocol which is the same protocol that 10BaseT uses because of its ability to work with several different types of cable including basic twisted pair wiring Both of these features play an important role in network considerations and they make 100BaseT an attractive migration path for those networks based on 10BaseT Since the 100Mbps Fast Ethernet is compatible with all other 10Mbps Ethernet
9. th When two switching nodes are communicating they are connected with a dedicated channel between them so there is no contention for network bandwidth with other nodes As a result the switch reduces considerably the likelihood of traffic congestion For Fast Ethernet networks a switch is an effective way of eliminating the problem of chaining hubs beyond the two repeater limit A switch can be used to split parts of the network into different collision domains making it possible to expand your Fast Ethernet network beyond the 205 meter network diameter limit for 1OOBASE TX networks Switches supporting both traditional 1OMbps Ethernet and 100Mbps Fast Ethernet are also ideal for bridging between the existing 10Mbps networks and the new 100Mbps networks Switching LAN technology is a marked improvement over the previous generation of network hubs and bridges which were characterized by higher 3 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 My Re RR ee ae 24 port 10 100BASE Ethernet Switch with RJ 45 connectors Supports Auto negotiation of spe
10. ver 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 through twisted pair cable Rear Panel 1 ao Stl AC Power Connector 11 TECHNICAL SPECIFICATIONS IEEE 802 3 1OBASE T Ethernet Standards IEEE 802 3u 100BASE TX Fast Ethernet IEEE 802 1p Compliance Protocol CSMA CD Data Transfer Ethernet 10Mbps half duplex 20Mbps full duplex 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 100BASE TX 2 pair UTP Cat 5 EIA TIA 568 100 ohm STP Network Cables Number of Ports 24 x 10 100Mbps Auto MDI ports Physical and Environmental AC inputs 100 to 240 VAC 50 or 60 Hz internal universal power supply Power Consumption TRV Temperature Operating 0 40 C 32 to 104 F Storage 10 70 C 14 to 158 F Humidity Operating 10 90 Storage 5 90 Dimensions Width 11 02 in 280mm Depth 7 09 in 180mm Height 1 73 in 44mm EMI FCC Class A CE Mark Class A VCCI Class A 12 TECHNICAL SPECIFICATIONS Performance Transmits Method Store and forward RAM Buffer 1 25 MBits per device Filtering N Address Table 8K entries per device Packet Filtering 10Mbps Ethernet 14 880 pps
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