6950ua.bk Page 1 Thursday, April 29, 1999 1:28 PM ® SuperStack® II Switch 1100 User Guide 3C16950, 3C16951 http://www.3com.com/ Part No.
16950ua.bk Page 2 Thursday, April 29, 1999 1:28 PM 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 Copyright © 1999, 3Com Technologies. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Technologies.
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16950ua.bk Page 7 Thursday, April 29, 1999 1:28 PM ABOUT THIS GUIDE This guide provides all the information you need to install and use a SuperStack ® II Switch 1100 unit with default settings. If you want to change the way the Switch works using management software, refer to the “SuperStack II Switch Management Guide” (part number DUA1695-0BAA0x).
16950ua.bk Page 8 Thursday, April 29, 1999 1:28 PM 8 ABOUT THIS GUIDE Conventions Table 1 and Table 2 list conventions that are used throughout this guide.
16950ua.bk Page 9 Thursday, April 29, 1999 1:28 PM Related Documentation 9 Table 2 Text Conventions (continued) Convention Description Words in italics Italics are used to: ■ ■ ■ Emphasize a point. Denote a new term at the place where it is defined in the text. Identify menu names, menu commands, and software button names. Examples: From the Help menu, select Contents. Click OK.
16950ua.bk Page 10 Thursday, April 29, 1999 1:28 PM 10 ABOUT THIS GUIDE In addition, there are other publications you may find useful: Year 2000 Compliance ■ Documentation accompanying the Expansion Modules. ■ Documentation accompanying the Transceiver Modules. ■ Documentation accompanying the Advanced Redundant Power System. For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page: http://www.3com.com/products/yr2000.
16950ua.bk Page 11 Thursday, April 29, 1999 1:28 PM 1 INTRODUCING THE SWITCH 1100 This chapter contains introductory information about the Switch and how it can be used in your network.
16950ua.bk Page 12 Thursday, April 29, 1999 1:28 PM 12 CHAPTER 1: INTRODUCING THE SWITCH 1100 About the SuperStack II Switch 1100 The SuperStack® II system solves the problem of growth in dynamic network environments and provides everything you need for successful workgroup networking. Much more than a collection of stackable components, the system comprises a complete, integrated architecture of modular parts that are easy to install and use.
16950ua.bk Page 13 Thursday, April 29, 1999 1:28 PM Switch 1100 — Front View Detail 13 Switch 1100 — Front View Detail Figure 1 Switch 1100 — Front view Port Connections 10BASE-T Ports The Switch has 12 or 24 10BASE-T ports configured as MDIX (cross-over). The maximum segment length is 100m (328ft) over Category 3, 4, or 5 twisted pair cable. As these ports are configured as MDIX (cross-over), you need to use a cross-over cable to connect to devices whose ports are MDIX-only.
16950ua.bk Page 14 Thursday, April 29, 1999 1:28 PM 14 CHAPTER 1: INTRODUCING THE SWITCH 1100 LEDs Table 3 lists the LEDs visible on the front of the Switch, and their states according to color. For information on using the LEDs for problem solving, see “Checking for Correct Operation” on page 29. Table 3 LED behavior LED Color Indicates TCVR Yellow Port 1 is a Transceiver Module fitted to the rear of the Switch. Off Port 1 is operating as a 10BASE-T port.
16950ua.bk Page 15 Thursday, April 29, 1999 1:28 PM Switch 1100 — Rear View Detail 15 Switch 1100 — Rear View Detail Figure 2 Switch 1100 — Rear view Unit Information Label This label shows the following: ■ The 3Com product name of the Switch ■ The 3Com 3C number of the Switch ■ The unique MAC address (Ethernet address) of the Switch ■ The serial number of the Switch You may need this information for fault reporting purposes.
950ua.bk Page 16 Thursday, April 29, 1999 1:28 PM 16 CHAPTER 1: INTRODUCING THE SWITCH 1100 Expansion Module Slot You can use this slot to install an Expansion Module; for example, a 100BASE-FX Module that provides an additional high-speed link, or a Matrix Module that provides four matrix ports for stacking Switch units together. 3Com provides a range of Expansion Modules; contact your supplier for availability. For more information about Matrix Modules, see “Stacking Units” on page 26.
16950ua.bk Page 17 Thursday, April 29, 1999 1:28 PM Network Configuration Examples Network Configuration Examples Network Segmentation I 17 The following illustrations show some examples of how the Switch can be placed on your network. Figure 3 shows how the Switch 1100 fits into a large corporate network with a Fast Ethernet infrastructure. A Switch is positioned on each floor and servers are centralized in the basement.
16950ua.bk Page 18 Thursday, April 29, 1999 1:28 PM 18 CHAPTER 1: INTRODUCING THE SWITCH 1100 Network Segmentation II Figure 4 shows the Switch 1100 in a second workgroup situation. This setup could be that of a small office within a large corporation, or part of a larger corporate network. Most of the switch ports have multiple endstations.
16950ua.bk Page 19 Thursday, April 29, 1999 1:28 PM Network Configuration Examples Desktop Switching 19 Figure 5 shows the Switch 1100 used for a group of users in a large corporate network. Here switching is brought to the desktop with a single endstation per port. Local servers are connected via 100Mbps Fast Ethernet links.
16950ua.bk Page 20 Thursday, April 29, 1999 1:28 PM 20 CHAPTER 1: INTRODUCING THE SWITCH 1100 Configuration Rules for Fast Ethernet The topology rules for 100Mbps Fast Ethernet are slightly different to those for 10Mbps Ethernet. Figure 6 illustrates the key topology rules and provides examples of how they allow for large-scale Fast Ethernet networks.
16950ua.bk Page 21 Thursday, April 29, 1999 1:28 PM Configuration Rules with Full Duplex 21 The key topology rules are: Configuration Rules with Full Duplex ■ Maximum UTP cable length is 100m (328ft) over Category 5 cable. ■ A 412m (1352ft) fiber run is allowed for connecting switch-to-switch, or endstation-to-switch, using half-duplex 100BASE-FX.
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16950ua.bk Page 23 Thursday, April 29, 1999 1:28 PM 2 INSTALLING THE SWITCH This chapter contains the information you need to install and set up the Switch. It covers the following topics: ■ Choosing a Suitable Site ■ Rack-mounting ■ Placing Units On Top of Each Other ■ Stacking Units ■ The Power-up Sequence ■ Choosing the Correct Cables ■ Solving Problems Indicated by LEDs ■ Managing the Switch WARNING: Safety Information.
16950ua.bk Page 24 Thursday, April 29, 1999 1:28 PM 24 CHAPTER 2: INSTALLING THE SWITCH Choosing a Suitable Site The Switch is suited for use in an office environment where it can be mounted in a standard 19-inch equipment rack, or free standing. Alternatively, the Switch can be rack-mounted in a wiring closet or equipment room. A rack-mounting kit, containing two mounting brackets and six screws, is supplied with the Switch.
16950ua.bk Page 25 Thursday, April 29, 1999 1:28 PM Placing Units On Top of Each Other 25 Figure 7 Fitting a bracket for rack mounting 3 Insert the three screws and tighten with a suitable screwdriver. You must use the screws supplied with the mounting brackets. Damage caused to the unit by using incorrect screws invalidates your warranty. 4 Repeat steps 2 and 3 for the other side of the Switch. 5 Insert the Switch into the 19-inch rack and secure with suitable screws (not provided).
16950ua.bk Page 26 Thursday, April 29, 1999 1:28 PM 26 CHAPTER 2: INSTALLING THE SWITCH Stacking Units Units in the Switch 1100/3300 family can be stacked together and then treated as a single manageable unit with one IP address. You can stack Switch units together in two ways: Stacking Two Units ■ The matrix port on the rear of the Switch allows you to connect two Switch units back-to-back. For this you need a Matrix Cable (part number 3C16965). Contact your supplier for details.
16950ua.bk Page 27 Thursday, April 29, 1999 1:28 PM Stacking Units 27 Figure 8 A stack of two units Stacking Up To Four Units You can stack up to four Switch units with a single SuperStack II Switch Matrix Module and the appropriate number of Matrix Cables. You only need one Matrix Module for each stack. To stack up to four Switch units: 1 Power-off all the units. 2 Arrange the units as required.
16950ua.bk Page 28 Thursday, April 29, 1999 1:28 PM 28 CHAPTER 2: INSTALLING THE SWITCH 5 If you use the management software of the units: ■ Ensure that all the units have the same version of management software ■ Ensure that you re-configure the stack-wide features on all the units For more information about management software, see “Managing the Switch” on page 32.
16950ua.bk Page 29 Thursday, April 29, 1999 1:28 PM The Power-up Sequence The Power-up Sequence Connecting a Redundant Power System 29 The following sections describe how to get your Switch 1100 powered-up and ready for operation. You can connect a SuperStack II Advanced Redundant Power System (part number 3C16071) to the Switch. This unit, which is also known as an RPS, is designed to maintain the power to your Switch if a power supply failure occurs.
16950ua.bk Page 30 Thursday, April 29, 1999 1:28 PM 30 CHAPTER 2: INSTALLING THE SWITCH Table 4 LED colors Color State Green The Switch is powered-up and operating normally Yellow The Switch has failed its Power On Self Test. This occurs if any of the ports fail during power-up. Off The Switch is not receiving power. If there is evidence of a problem, see “Solving Problems Indicated by LEDs” on page 31.
16950ua.bk Page 31 Thursday, April 29, 1999 1:28 PM Solving Problems Indicated by LEDs Solving Problems Indicated by LEDs 31 If the LEDs on the Switch indicate a problem, refer to Table 5 which contains a list of possible problems and suggested solutions. Table 5 Problems indicated by LEDs Problem Suggested Solution A Power LED does not light Check that the power cable is firmly connected to the relevant Switch unit and to the supply outlet.
16950ua.bk Page 32 Thursday, April 29, 1999 1:28 PM 32 CHAPTER 2: INSTALLING THE SWITCH For information about solving problems when managing the Switch, refer to the Problem Solving chapter in the “SuperStack II Switch Management Guide” (DUA1695-0BAA0x). Managing the Switch The Switch contains software that allows you to change and monitor the way it works.
16950ua.bk Page 33 Thursday, April 29, 1999 1:28 PM A SAFETY INFORMATION You must read the following safety information before carrying out any installation or removal of components, or any maintenance procedures on the Switch 1100. WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefully. You must read the following safety information carefully before you install or remove the unit.
16950ua.bk Page 34 Thursday, April 29, 1999 1:28 PM 34 APPENDIX A: SAFETY INFORMATION Important Safety Information ■ Installation and removal of the unit must be carried out by qualified personnel only. ■ If installing the Switch unit in a stack with SuperStack II Hub units, the Switch 1100 unit must be installed below the narrower Hub units. ■ The unit should never be connected to an A.C. outlet (power supply) without an earth (ground) connection.
16950ua.bk Page 35 Thursday, April 29, 1999 1:28 PM Important Safety Information 35 ■ France and Peru only: This unit cannot be powered from IT† supplies. If your supplies are of IT type, this unit must be powered by 230V (2P+T) via an isolation transformer ratio 1:1, with the secondary connection point labelled Neutral, connected directly to earth (ground). †Impédance à la terre.
16950ua.bk Page 36 Thursday, April 29, 1999 1:28 PM 36 APPENDIX A: SAFETY INFORMATION L’information de Sécurité Importante ■ L'installation et la dépose de ce groupe doivent être confiés à un personnel qualifié. ■ Si vous entassez l'unité Switch avec les unités SuperStack II Hub, l'unité Switch 1100 doit être installée en dessous des unités Hub plus étroites. ■ L’unité ne devrait pas etre branchee a une prise de courant C.A.
16950ua.bk Page 37 Thursday, April 29, 1999 1:28 PM L’information de Sécurité Importante 37 ■ L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme CEI 950. Ces conditions ne sont maintenues que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. ■ France et Pérou uniquement: Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre.
16950ua.bk Page 38 Thursday, April 29, 1999 1:28 PM 38 APPENDIX A: SAFETY INFORMATION Wichtige Sicherheitsinformat ionen ■ Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. ■ Wenn die Switch 1100 Einheit in einer Stapel mit anderen SuperStack II Hub Einheiten eingebaut werden soll, muß die Switch 1100 Einheit unter die schmaleren Hub Einheiten eingebaut werden. ■ Das Gerät ist unter keinen umständen an einen Wechselstrom (A.C.
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16950ua.bk Page 41 Thursday, April 29, 1999 1:28 PM C TECHNICAL SPECIFICATIONS Physical Dimensions Height: 76mm (3.0 in.) x Width: 483mm (19.0 in.) x Depth 300mm (12.0 in.) Weight: 4.4kg (9.7lbs) Environmental Requirements Operating Temperature 0° to 50°C (32° to 122°F) Storage Temperature –10° to +70°C (14° to 158°F) Operating Humidity 10 to 95% relative humidity, non-condensing Standards EN60068 (IEC68) Safety Agency Certifications UL 1950, EN60950, CSA 22.2 No.
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16950ua.bk Page 43 Thursday, April 29, 1999 1:28 PM D TECHNICAL SUPPORT 3Com provides easy access to technical support information through a variety of services. This appendix describes these services. Information contained in this appendix is correct at time of publication. For the most recent information, 3Com recommends that you access the 3Com Corporation World Wide Web site.
16950ua.bk Page 44 Thursday, April 29, 1999 1:28 PM 44 APPENDIX D: TECHNICAL SUPPORT 3Com FTP Site Download drivers, patches, software, and MIBs across the Internet from the 3Com public FTP site. This service is available 24 hours a day, 7 days a week. To connect to the 3Com FTP site, enter the following information into your FTP client: ■ Hostname: ftp.3com.
16950ua.bk Page 45 Thursday, April 29, 1999 1:28 PM Support from Your Network Supplier 45 Access by Digital Modem ISDN users can dial in to the 3Com BBS using a digital modem for fast access up to 64 Kbps. To access the 3Com BBS using ISDN, call the following number: 1 847 262 6000 3Com Facts Automated Fax Service The 3Com Facts automated fax service provides technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week.
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16950ua.bk Page 47 Thursday, April 29, 1999 1:28 PM Returning Products for Repair Returning Products for Repair 47 Before you send a product directly to 3Com for repair, you must first obtain an authorization number. Products sent to 3Com without authorization numbers will be returned to the sender unopened, at the sender’s expense.
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16950ua.bk Page 49 Thursday, April 29, 1999 1:28 PM GLOSSARY 10BASE-T The IEEE specification for 10Mbps Ethernet over Category 3, 4 or 5 twisted pair cable. 100BASE-FX The IEEE specification for 100Mbps Fast Ethernet over fiber-optic cable. 100BASE-TX The IEEE specification for 100Mbps Fast Ethernet over Category 5 twisted-pair cable. auto-negotiation A feature on twisted pair ports that allows them to advertise their capabilities for speed, duplex and flow control.
16950ua.bk Page 50 Thursday, April 29, 1999 1:28 PM 50 GLOSSARY broadcast storm Multiple simultaneous broadcasts that typically absorb all the available network bandwidth and can cause a network to fail. Broadcast storms can be due to faulty network devices. collision A term used to describe two colliding packets in an Ethernet network.
16950ua.bk Page 51 Thursday, April 29, 1999 1:28 PM GLOSSARY 51 hub A device that regenerates LAN traffic so that the transmission distance of that signal can be extended. Hubs are similar to repeaters, in that they connect LANs of the same type; however they connect more LANs than a repeater and are generally more sophisticated. IEEE Institute of Electrical and Electronics Engineers. This American organization was founded in 1963 and sets standards for computers and communications. IEEE 802.
16950ua.bk Page 52 Thursday, April 29, 1999 1:28 PM 52 GLOSSARY MAC address Media Access Control address; also called hardware or physical address. A layer 2 address associated with a particular network device. Most devices that connect to a LAN have a MAC address assigned to them as they are used to identify other devices in a network. MAC addresses are 6 bytes long. MDI Medium Dependent Interface.
16950ua.bk Page 53 Thursday, April 29, 1999 1:28 PM GLOSSARY SNMP stack switch Switch Database TCP/IP 53 Simple Network Management Protocol. The current IETF standard protocol for managing devices on an TCP/IP network. A group of network devices that are integrated to form a single logical device. A device that interconnects several LANs to form a single logical LAN that comprises of several LAN segments.
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16950ua.bk Page 55 Thursday, April 29, 1999 1:28 PM INDEX Numbers G 10BASE-T ports 13 10BASE-T/100BASE-TX ports 13 3C number 15 3Com bulletin board service (3Com BBS) 44 3Com Knowledgebase Web Services 43 3Com URL 43 3ComFacts 45 glossary 49 A H hardware features 12 I installing the Switch 23 prerequisites 24 auto-negotiating ports 13 L B bulletin board service 44 LEDs 14 Light Emitting Diodes.
16950ua.bk Page 56 Thursday, April 29, 1999 1:28 PM 56 INDEX RJ45 40 serial cable 39 pin-outs 39 ports 10BASE-T 13 10BASE-T/100BASE-TX 13 auto-negotiating 13 console 15 matrix 16 power socket 15 powering-up a Switch 1100 29 product name 15 R rack mounting a Switch 1100 24 Redundant Power System. See RPS returning products for repair 47 RPS 15 connecting 29 socket 15 S safety information English 34 French 36 German 38 segment, maximum length 13, 21 serial number of the Switch 15 serial port.
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16950ua.bk Page 58 Thursday, April 29, 1999 1:28 PM days after the date of purchase, and this is verified by 3Com, it will be considered dead- or defective-on-arrival (DOA) and a replacement shall be provided by advance replacement. The replacement product will normally be shipped not later than three (3) business days after 3Com’s verification of the DOA product, but may be delayed due to export or import procedures.
16950ua.bk Page 59 Thursday, April 29, 1999 1:28 PM EMC STATEMENTS FCC STATEMENT This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
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