DUA1745-0AAA02.book Page 1 Monday, August 9, 2004 11:51 AM SuperStack® 3 Switch 3870 Family Getting Started Guide 3CR17450-91 3CR17451-91 http://www.3com.com/ Part No.
DUA1745-0AAA02.book Page 2 Monday, August 9, 2004 11:51 AM 3Com Corporation 350 Campus Drive Marlborough MA USA 01752-3064 Copyright © 2004, 3Com Corporation. 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 Corporation.
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DUA1745-0AAA02.book Page 7 Monday, August 9, 2004 11:51 AM ABOUT THIS GUIDE This guide provides all the information you need to install and use 3Com® SuperStack® 3 Switch 3870 (24 and 48 port) in its default state. The guide is intended for use by network administrators who are responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of LANs (Local Area Networks).
DUA1745-0AAA02.book Page 8 Monday, August 9, 2004 11:51 AM 8 ABOUT THIS GUIDE Conventions Table 1 and Table 2 list conventions that are used throughout this guide. Table 1 Notice Icons Icon Notice Type Description Information note Information that describes important features or instructions. Caution Information that alerts you to potential loss of data or potential damage to an application, system, or device. Warning Information that alerts you to potential personal injury.
DUA1745-0AAA02.book Page 9 Monday, August 9, 2004 11:51 AM Related Documentation Related Documentation 9 In addition to this guide, each Switch documentation set includes the following: ■ Management Quick Reference Guide This guide contains: ■ ■ ■ a list of software features supported by each Switch. a summary of the web interface and command line interface commands for the Switch.
DUA1745-0AAA02.book Page 10 Monday, August 9, 2004 11:51 AM 10 ABOUT THIS GUIDE To access the online documentation from the CD-ROM: 1 Insert the CD-ROM into the relevant CD-ROM drive. If your PC has auto-run enabled, a splash screen will be displayed automatically. 2 Select the Documentation section from the contents page.
DUA1745-0AAA02.book Page 11 Monday, August 9, 2004 11:51 AM 1 INTRODUCING THE SUPERSTACK 3 SWITCH 3870 This chapter contains introductory information about the Switch 3870 and how it can be used in your network.
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DUA1745-0AAA02.book Page 14 Monday, August 9, 2004 11:51 AM 14 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3870 10BASE-T/ 100BASE-TX/ 1000BASE-T Ports The 10BASE-T/100BASE-TX/1000BASE-T ports have RJ-45 connectors and are configured as Auto MDIX (cross-over). The default state for these ports is auto-negotiation enabled, where the speed, duplex and flow control modes of a link are automatically detected to provide the highest available bandwidth with the link partner.
DUA1745-0AAA02.book Page 15 Monday, August 9, 2004 11:51 AM Switch 3870 — Front View Detail LEDs 15 Table 4 lists LEDs visible on the front of the Switch, and how to read their status according to color. For information on using the LEDs for problem solving, see “Checking for Correct Operation of LEDs” on page 25. Table 4 LED behavior LED Color Indicates Port Status/Packet LEDs Green A high speed (1000 Mbps) link is present, and the port is enabled.
DUA1745-0AAA02.book Page 16 Monday, August 9, 2004 11:51 AM 16 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3870 LED Color Indicates Module LEDs Packet Status Yellow Packets are being transmitted/received on the port. Off No packets are being transmitted/received on the port. Green The Module is installed and supported and the Link Status has been determined. Yellow The Module is installed and supported but there is no link or an indeterminate link status.
DUA1745-0AAA02.book Page 17 Monday, August 9, 2004 11:51 AM Switch 3870 — Rear View Detail Switch 3870 — Rear View Detail 17 Figure 3 Switch 3870 — rear view Expansion Module Slot Power Socket Stacking Cable Port (Up) D O W N Stacking Cable Port (Down) Redundant Power System Socket Expansion Module Slot U P You can use this slot to install an Expansion Module. Contact your supplier for further information.
DUA1745-0AAA02.book Page 18 Monday, August 9, 2004 11:51 AM 18 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3870 Some combinations of stacked 24 and 48 port units restrict the number of modules supported by the stack.
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DUA1745-0AAA02.book Page 21 Monday, August 9, 2004 11:51 AM 2 INSTALLING THE SWITCH This chapter contains the information you need to install and set up the Switch 3870. It covers the following topics: ■ Package Contents ■ Choosing a Suitable Site ■ Rack-mounting ■ Placing Units On Top of Each Other ■ The Power-up Sequence ■ SFP Operation WARNING: Safety Information.
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DUA1745-0AAA02.book Page 23 Monday, August 9, 2004 11:51 AM Rack-mounting 23 If the Switch is installed in a 19-inch rack or closed assembly its local air temperature may be greater than room ambient temperature. Rack-mounting ■ The air is as free from dust as possible. ■ The Switch is situated away from sources of conductive (electrical) dust, for example laser printers. ■ The unit is installed in a clean, air conditioned environment.
DUA1745-0AAA02.book Page 24 Monday, August 9, 2004 11:51 AM 24 CHAPTER 2: INSTALLING THE SWITCH Figure 4 Fitting a bracket for rack-mounting You must use the screws supplied with the securing 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). Ensure that ventilation holes are not obstructed. 6 Connect network cabling.
DUA1745-0AAA02.book Page 25 Monday, August 9, 2004 11:51 AM The Power-up Sequence The Power-up Sequence Powering-up the Switch 3870 25 The following sections describe how to get your Switch 3870 powered-up and ready for operation. Use the following sequence of steps to power-up the Switch. 1 Plug the power cord into the power socket at the rear of the Switch. 2 Plug the other end of the power cord into your power outlet.
DUA1745-0AAA02.book Page 26 Monday, August 9, 2004 11:51 AM 26 CHAPTER 2: INSTALLING THE SWITCH For full redundancy, the unit requires two Type 3 Power Modules combined using a Type 3 Y-Cable (part number 3C16077). WARNING: If you are connecting the Switch to a Type 3 Power Module, read the Safety Information section in the Type 3 Power Module User Guide. CAUTION: The Switch can only use a SuperStack Advance Redundant Power System output.
DUA1745-0AAA02.book Page 27 Monday, August 9, 2004 11:51 AM SFP Operation 27 CAUTION: If you want to install the Switch using a Category 5E or Category 6 cable, 3Com recommends that you briefly connect the cable to a grounded port before connecting network equipment. If you do not, the cable’s Electrostatic Discharge (ESD) may damage the Switch's port.
DUA1745-0AAA02.book Page 28 Monday, August 9, 2004 11:51 AM 28 CHAPTER 2: INSTALLING THE SWITCH Use this transceiver to connect the Switch directly to a single-mode fiber-optic cable or to multimode fiber using a conditioned launch cable. ■ 1000BASE-LH70 SFP transceiver Use this transceiver to connect the Switch directly to a single-mode fiber-optic cable. If the SFP transceiver is faulty, it will not operate within the Switch. See “Solving Hardware Problems” on page 49.
DUA1745-0AAA02.book Page 29 Monday, August 9, 2004 11:51 AM SFP Operation 29 Figure 5 Inserting an SFP Transceiver Product label Suitable port on host Switch 5 Use and appropriate cable to connect the transceiver to a suitable device. 6 Check the LEDs on the front of the Switch to ensure that it is operating correctly. Refer to “LEDs” on page 15 for more information.
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DUA1745-0AAA02.book Page 31 Monday, August 9, 2004 11:51 AM 3 SETTING UP FOR MANAGEMENT Your Switch can operate in its default state, that is, you can install it and it will work straight away (plug-and-play). However, to make full use of the features offered by the Switch, and to change and monitor the way it works, you have to access the management software that resides on the Switch. This is known as managing the Switch.
DUA1745-0AAA02.book Page 32 Monday, August 9, 2004 11:51 AM CHAPTER 3: SETTING UP FOR MANAGEMENT This section gives an overview of what you need to do to get your Switch set up and ready for management when it is in its default state. The whole setup process is summarized in Figure 6. Detailed procedural steps are contained in the sections that follow.
DUA1745-0AAA02.book Page 33 Monday, August 9, 2004 11:51 AM Setting Up Overview 33 CAUTION: To protect your Switch from unauthorized access, you must change all three default passwords as soon as possible, even if you do not intend to actively manage your Switch. For more information on default users and changing default passwords, see “Default Users and Passwords” on page 46.
DUA1745-0AAA02.book Page 34 Monday, August 9, 2004 11:51 AM 34 CHAPTER 3: SETTING UP FOR MANAGEMENT addresses to be configured so that you know what IP address will be allocated to the Switch. Refer to the documentation that accompanies your DHCP server. For a detailed description of how automatic IP configuration operates, please refer to the Implementation Guide on the CD-ROM that accompanies your Switch or on the 3Com Web site.
DUA1745-0AAA02.book Page 35 Monday, August 9, 2004 11:51 AM Manually Configuring IP Information Manually Configuring IP Information Connecting to the Console Port 35 You can manually configure the Switch IP information in the following way: ■ Connecting to the console port — connect a workstation using a console cable to the console port of the Switch. You can then manually enter IP information using the command line interface (CLI).
DUA1745-0AAA02.book Page 36 Monday, August 9, 2004 11:51 AM 36 CHAPTER 3: SETTING UP FOR MANAGEMENT Connecting the Workstation to the Switch 1 Connect the workstation to the console port using an RJ-45 to DB9 converter cable and a standard null modem cable as shown in Figure 7.
DUA1745-0AAA02.book Page 37 Monday, August 9, 2004 11:51 AM Manually Configuring IP Information 37 2 At the login and password prompts, enter admin as your user name and press Return at the password prompt. If you have logged on correctly, the top-level menu of the command line interface is displayed as shown in the example in Figure 8. Figure 8 Example top-level command line interface menu 3 At the Select menu option prompt you can either: ■ enter the protocol ip basicConfig command.
DUA1745-0AAA02.book Page 38 Monday, August 9, 2004 11:51 AM 38 CHAPTER 3: SETTING UP FOR MANAGEMENT Viewing Automatically Configured IP Information Using 3Com Network Supervisor If you allow the Switch to automatically configure its own IP information you need to discover and view the IP information before you can begin to manage the Switch.
DUA1745-0AAA02.book Page 39 Monday, August 9, 2004 11:51 AM Viewing Automatically Configured IP Information ■ 39 A suitable cable: ■ ■ ■ An RJ-45 to DB9 converter cable. A standard null modem cable — if you are connecting directly to the console port, or A standard modem cable — if you are connecting to the console port using a modem. You can find pin-out diagrams for both cables in Appendix B on page 63.
DUA1745-0AAA02.book Page 40 Monday, August 9, 2004 11:51 AM 40 CHAPTER 3: SETTING UP FOR MANAGEMENT Refer to the documentation that accompanies the terminal emulation software for more information. Viewing IP Information via the Console Port You are now ready to view the automatically allocated IP information using the command line interface. 1 Connect your Switch to the network using an Ethernet cable. As soon as a network connection is made the Switch begins the automatic IP configuration process.
DUA1745-0AAA02.book Page 41 Monday, August 9, 2004 11:51 AM Methods of Managing a Switch 41 The initial set up of your Switch is now complete and the Switch is ready for you to set up your chosen management method. See “Methods of Managing a Switch” on page 41. If you do not intend to use the command line interface via the console port to manage the Switch, you can disconnect the serial cable and close the terminal emulator software.
DUA1745-0AAA02.book Page 42 Monday, August 9, 2004 11:51 AM 42 CHAPTER 3: SETTING UP FOR MANAGEMENT Web Interface Management Each Switch has an internal set of web pages that allow you to manage the Switch using a Web browser remotely over an IP network (see Figure 13). Figure 13 Web interface management over the network Switch Workstation Connect over Network via web browser Refer to “Setting Up Web Interface Management” on page 44.
DUA1745-0AAA02.book Page 43 Monday, August 9, 2004 11:51 AM Setting Up Command Line Interface Management CLI Management via the Console Port 43 To manage a Switch using the command line interface via the local console port connection: 1 Ensure you have connected your workstation to the console port correctly as described in “Connecting to the Console Port” on page 35. 2 Your Switch is now ready to continue being managed and/or configured through the CLI via its console port.
DUA1745-0AAA02.book Page 44 Monday, August 9, 2004 11:51 AM 44 CHAPTER 3: SETTING UP FOR MANAGEMENT Setting Up Web Interface Management This section describes how you can set up web interface management over the network. Pre-requisites ■ Ensure you have already set up the Switch with IP information as described in “Setting Up Overview” on page 32. ■ Ensure that the Switch is connected to the network using a Category 5 twisted pair Ethernet cable with RJ-45 connectors. ■ A suitable Web browser.
DUA1745-0AAA02.book Page 45 Monday, August 9, 2004 11:51 AM Setting Up SNMP Management Web Management Over the Network 45 To manage a Switch using the web interface over an IP network: 1 Check that you have the IP protocol correctly installed on your management workstation. You can check this by trying to browse the World Wide Web. If you can browse, the IP protocol is installed.
DUA1745-0AAA02.book Page 46 Monday, August 9, 2004 11:51 AM 46 CHAPTER 3: SETTING UP FOR MANAGEMENT To manage your Switch using an SNMP network management application, you need to specify SNMP community strings for the users defined on the Switch. You can do this using the command line interface system management snmp community command — refer to the command line interface section of the “Management Interface Reference Guide” for more information.
DUA1745-0AAA02.book Page 47 Monday, August 9, 2004 11:51 AM 4 PROBLEM SOLVING This chapter helps you to diagnose and solve problems you may have with the operation of your Switch. There is also an explanation of IP addressing.
DUA1745-0AAA02.book Page 48 Monday, August 9, 2004 11:51 AM 48 CHAPTER 4: PROBLEM SOLVING Solving Problems Indicated by LEDs If the LEDs on the Switch indicate a problem, refer to the list of suggested solutions below. The Unit LED does not light Check that the power cable is firmly connected to the Switch and to the supply outlet. If the connection is secure and there is still no power, you may have a faulty power cord or an internal fault.
DUA1745-0AAA02.book Page 49 Monday, August 9, 2004 11:51 AM Solving Hardware Problems 49 ■ An internal fan has malfunctioned. If a fan has stopped spinning, power off the unit and check the air vents for obstructions. If this situation occurs, the Fault LED will light red. ■ The internal PSU has failed and power is being supplied by an external Redundant Power Supply (RPS). Although the Switch has a fault it will continue to operate normally.
DUA1745-0AAA02.book Page 50 Monday, August 9, 2004 11:51 AM 50 CHAPTER 4: PROBLEM SOLVING A fan failure warning message is received Your Switch has a fan monitoring system that will generate fan failure warning messages. Fan failure could potentially reduce the lifetime of the Switch. The monitoring system polls the fan status at periodic intervals while the unit is powered up.
DUA1745-0AAA02.book Page 51 Monday, August 9, 2004 11:51 AM Solving Communication Problems ■ 51 The ambient temperatures and environmental conditions meet those specified in Appendix C. 4 Power cycle the unit. If a further thermal shutdown occurs, and all environmental conditions are satisfactory, return the unit to 3Com. Error message indicating that the SFP transceiver is invalid The Switch has identified that the SFP does not meet the minimum requirements for the Switch and has disabled the port.
DUA1745-0AAA02.book Page 52 Monday, August 9, 2004 11:51 AM 52 CHAPTER 4: PROBLEM SOLVING ■ The second part (‘.8’ in the example) identifies the device within the network The natural subnet mask for this example is 255.255.255.0. If your network has a connection to the external IP network, that is, you access the Internet, you must apply for a registered IP address.
DUA1745-0AAA02.book Page 53 Monday, August 9, 2004 11:51 AM Solving Software Upgrade Problems Solving Software Upgrade Problems 53 You can upgrade the management software of the Switch by using the System > Control > Software Upgrade operation in the Web Interface, or the system control softwareUpgrade command in the command line interface. For details on these options, refer to the Management Interface Reference Guide supplied in HTML format on the CD-ROM that accompanies your Switch.
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DUA1745-0AAA02.book Page 55 Monday, August 9, 2004 11:51 AM 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 3870. 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.
DUA1745-0AAA02.book Page 56 Monday, August 9, 2004 11:51 AM 56 APPENDIX A: SAFETY INFORMATION Important Safety Information WARNING: Installation and removal of the unit must be carried out by qualified personnel only. WARNING: If installing a Switch 3870 in a stack with SuperStack® 3 units that are narrower than the Switch 3870, the Switch 3870 units must be installed below the narrower units. WARNING: The unit must be earthed (grounded).
DUA1745-0AAA02.book Page 57 Monday, August 9, 2004 11:51 AM Important Safety Information 57 WARNING: The socket outlet must be near to the unit and easily accessible. You can only remove power from the unit by disconnecting the power cord from the outlet. WARNING: This unit operates under SELV (Safety Extra Low Voltage) conditions according to IEC 60950. The conditions are only maintained if the equipment to which it is connected also operates under SELV conditions.
DUA1745-0AAA02.book Page 58 Monday, August 9, 2004 11:51 AM 58 APPENDIX A: SAFETY INFORMATION WARNING: Fiber Optic ports - Optical Safety Never look at the transmit laser while it is powered-up. Never look directly at the fiber ports and fiber cable ends when they are powered-up. WARNING: Use of controls or adjustments of performance or procedures other than those specified herein may result in hazardous laser emissions.
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DUA1745-0AAA02.book Page 60 Monday, August 9, 2004 11:51 AM 60 APPENDIX A: SAFETY INFORMATION connexion portant l'appellation Neutre et avec raccordement direct à la terre (masse). AVERTISSEMENT: Points d’accès RJ-45. Ceux-ci sont protégés par des prises de données. Ils ne peuvent pas être utilisés comme prises de téléphone conventionnelles standard, ni pour la connection de l’unité à un réseau téléphonique central privé ou public.
DUA1745-0AAA02.book Page 61 Monday, August 9, 2004 11:51 AM Wichtige Sicherheitsinformationen 61 Wichtige Sicherheitsinformationen VORSICHT: Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. VORSICHT: Wenn Sie einen Switch 3870 zusammen mit schmaleren SuperStack® 3 Einheiten in einem Stack aufstellen, muss die Switch 3870 Einheit unterhalb dieser schmaleren Einheiten aufgestellt werden. VORSICHT: Das Gerät muß geerdet sein.
DUA1745-0AAA02.book Page 62 Monday, August 9, 2004 11:51 AM 62 APPENDIX A: SAFETY INFORMATION VORSICHT: RJ-45-Porte. Diese Porte sind geschützte Datensteckdosen. Sie dürfen weder wie normale traditionelle Telefonsteckdosen noch für die Verbindung der Einheit mit einem traditionellem privatem oder öffentlichem Telefonnetzwerk gebraucht werden. Nur RJ-45-Datenanscluße, Telefonnetzsysteme or Netztelefone an diese Steckdosen anschließen.
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DUA1745-0AAA02.book Page 64 Monday, August 9, 2004 11:51 AM 64 APPENDIX B: PIN-OUTS Modem Cable RJ-45 to RS-232 25-pin Switch 3870 Cable connector: RJ-45 female RJ-45 Pin Assignments Screen TxD RxD RTS CTS DSR Shell 3 2 7 8 6 Ground DCD DTR 5 1 4 RS-232 Modem Port Cable connector: 25-pin male 1 2 3 4 5 6 7 8 20 Screen TxD RxD RTS CTS DSR Ground DCD DTR Pin assignments are identical for 10/100 and 1000 RJ-45 connectors.
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DUA1745-0AAA02.book Page 67 Monday, August 9, 2004 11:51 AM C TECHNICAL SPECIFICATIONS Switch 3870 (24 Port) Physical Dimensions Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.32 in.) x Depth: 415 mm (16.34 in.). Weight: Under 5.0 kg. Environmental Requirements Operating Temperature 0 ° to 40 °C (32 ° to 104 °F) Storage Temperature –10 ° to +70 °C (14 ° to 158 °F) Operating Humidity 10–95% relative humidity, non-condensing Standards EN60068 to 3Com schedule (package testing: paras 2.1, 2.2, 2.
DUA1745-0AAA02.book Page 68 Monday, August 9, 2004 11:51 AM 68 APPENDIX C: TECHNICAL SPECIFICATIONS Switch 3870 (48 Port) Physical Dimensions Height: 43.6 mm (1.7 in.) x Width: 440 mm (17.32 in.) x Depth: 415 mm (16.34 in.). Weight: Under 5.0 kg. Environmental Requirements Operating Temperature 0 ° to 40 °C (32 ° to 104 °F) Storage Temperature –10 ° to +70 °C (14 ° to 158 °F) Operating Humidity 10–95% relative humidity, non-condensing Standards EN60068 to 3Com schedule (package testing: paras 2.
DUA1745-0AAA02.book Page 69 Monday, August 9, 2004 11:51 AM D OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product to Gain Service Benefits To take advantage of warranty and other service benefits, you must first register your product at http://eSupport.3com.com/. 3Com eSupport services are based on accounts that you create or have authorization to access.
DUA1745-0AAA02.book Page 70 Monday, August 9, 2004 11:51 AM 70 APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT ■ Connection Assistant helps you install, configure and troubleshoot 3Com desktop and server NICs, wireless cards and Bluetooth devices. This diagnostic software is located at: http://www.3com.com/prodforms/software/connection_assistan t/ca_thankyou.
DUA1745-0AAA02.book Page 71 Monday, August 9, 2004 11:51 AM Telephone Technical Support and Repair 71 To send a product directly to 3Com for repair, you must first obtain a return authorization number (RMA). Products sent to 3Com, without authorization numbers clearly marked on the outside of the package, will be returned to the sender unopened, at the sender’s expense. If your product is registered and under warranty, you can obtain an RMA number online at http://eSupport.3com.com/.
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DUA1745-0AAA02.book Page 74 Monday, August 9, 2004 11:51 AM 74 INDEX Simple Network Management Protocol.
DUA1745-0AAA02.book Page 75 Monday, August 9, 2004 11:51 AM REGULATORY NOTICES 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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