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10/100Mbps
Ethernet/Fast Ethernet
Switch
Model DES-2212
User’s Guide
Rev. 02 (October, 1997)
6DES2212..02
Printed In Taiwan
RECYCLABLE
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Wichtige Sicherheitshinweise 1. Bitte lesen Sie sich diese Hinweise sorgfältig durch. 2. Heben Sie diese Anleitung für den spätern Gebrauch auf. 3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung. 4. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind. 5. Das Gerät is vor Feuchtigkeit zu schützen. 6. Bei der A
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WARRANTIES EXCLUSIVE IF THE D-LINK PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, THE CUSTOMER'S SOLE REMEDY SHALL BE, AT D-LINK'S OPTION, REPAIR OR REPLACEMENT. THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. D-LINK NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LI
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Limited Warranty Hardware: D-Link warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following lengths of time from the date of purchase from D-Link or its Authorized Reseller: Product Type Warranty Period Network adapters Lifetime Unmanaged and managed hubs (10Mbps) Lifetime * Unmanaged and managed hubs (100Mbps) One year Managed Switches Three years * Unmanaged switches Lifetime * Repeaters, MAUs , transceivers, media conv
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Software: D-Link warrants that the software programs licensed from it will perform in substantial conformance to the applicable published program specifications for a period of ninety (90) days from the date of purchase from D- Link or its Authorized Reseller. D-Link warrants the magnetic media containing software against failure during the warranty period. No updates are provided. D-Link's sole obligation hereunder shall be to replace any defective software products with products which substa
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Trademarks Copyright 1997 D-Link Corporation. Contents subject to change without prior notice. D-Link is a registered trademark of D-Link Corporation/D-Link Systems, Inc. All other trademarks belong to their respective proprietors. Copyright Statement No part of this publication may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from D-Link Corporation/D-Link Systems Inc., as stipulated by the Unite
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TABLE OF CONTENTS 0 ABOUT THIS GUIDE.......................................................... XI 1 INTRODUCTION .................................................................1 DES-2212 Ethernet/Fast Ethernet Switch ................................................. 1 Ports ....................................................................................................................1 Switching ...............................................................................................
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Rack Mounting..................................................................................................14 Connecting Power ................................................................................... 15 Replacing the Fuse ............................................................................................16 4 MAKING NETWORK CONNECTIONS...................................17 10BASE-T Connection............................................................................. 17 10
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Displaying Port Statistics ..................................................................................49 Resetting the Switch................................................................................. 51 System Reset .....................................................................................................51 Factory Reset.....................................................................................................52 RODUCT PECIFICATIONS 6 P S .....................
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0 ABOUT THIS GUIDE This manual explains how to set up and use the D-Link DES-2212 12-port Ethernet/Fast Ethernet switch. The contents include: ♦ Chapter 1 Introduction Introduces the features of the DES-2212. ♦ Chapter 2 External Features Introduces the external features (including the front panel, LED indicators, and rear panel) of the DES- 2212 switching hub. ♦ Chapter 3 Installation Tells how to unpack and install the switch. ♦ Chapter 4 Making Network Connections Tells how to conne
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4 1 INTRODUCTION This chapter introduces the D-Link DES-2212 switch, and the technologies that it uses to give you improved network performance and reliability. DES-2212 Ethernet/Fast Ethernet Switch The DES-2212 is an Ethernet/Fast Ethernet switch for networks needing improved performance, the ability to interconnect between 10Mbps and 100Mbps Ethernet networks, and SNMP network management capability. Ports The DES-2212 has twelve ports, four NWay 10BASE-TX Ethernet/100BASE-TX Fast Ethernet po
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All of the ports can operate in either half-duplex or full-duplex mode. Full- duplex operation, allowing the port to transmit and receive at the same time, can double overall network bandwidth in many applications. Switching The DES-2212 uses store-and-forward technology to bridge packets between ports. Forwarding and filtering occurs at full “wire speed,” 148,800 packets per second (pps) for Fast Ethernet, and 14,880 pps for Ethernet. It has 2MB of buffer memory for the 10Mbps ports, and 4MB
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100Mbps Fast Ethernet Introduction Computers today have become increasingly powerful, with the capability to accommodate very sophisticated uses such as multimedia applications, video- conferencing, and CAD/CAM. To utilize these technologically advanced applications more efficiently, there is also a growing demand for faster networks that can handle heavy network traffic. Recognizing this need for greater bandwidth and lower latency, a variety of technologies such as FDDI, ATM, and 100Mbps Fast
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closet must be Category 5 certified. Where these blocks do not meet the standard, an upgrade is necessary. Topology A Fast Ethernet workgroup is configured in a star topology and is built around a maximum of two repeaters. Each workgroup forms a separate LAN (also known as a segment or collision domain), and these workgroups can be easily interconnected through switches, bridges, or routers to form one LAN large enough to encompass a high-rise building or campus environment. Recent innovations
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Hubs Unlike 10BASE-T hubs, which are all functionally identical, Fast Ethernet repeater hubs are divided into two distinct types: Class I and Class II. A Class I hub repeats all incoming signals on one port to the other ports by first translating them to digital signals and then retranslating them back to line signals. These translations are necessary when connecting various network media to the same collision domain, such as when combining two wire-pair 100BASE-TX media with four wire-pair 1
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Ethernet Switching Introduction Another approach to pushing beyond the limits of Ethernet technology is the development of switching technology. A switch bridges Ethernet packets at the lowest (MAC address) level between 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 making it possible for a local area network to
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5 2 EXTERNAL FEATURES This chapter explains the features visible on the front and rear panels of the DES-2212 Ethernet switch. Front Panel A front view of the DES-2212 Ethernet switch is shown below.
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♦ LED Indicator Panel Gives status information about the switch itself, as well as each of the switch ports. The LED indicator panel is described in detail in the next section. ♦ Console Port The diagnostic console port is a standard RS-232 DB-9 connector, which can be used to connect a terminal or terminal emulator to the switch, in order to configure or manage the hub. The port can also be used for out-of-band network management. See the Using the Console Interface chapter starting on pag
