Manuale d’uso / di manutenzione del prodotto 4070 del fabbricante 3Com
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http://www.3com.com/ Part No. DUA1770-9AAA04 Published April 2 003 3Com ® Switch 40x0 Family Getting Started Guide 3C17707, 3C1770 8, 3C17709 DUA1770-9AAA04.
3Com Corporati on 5500 Great America Parkway , Santa Clara, Califor nia 95052-8145 Copyright © 2 003, 3Com Corporation. All rights reserv ed . No part of this documen tation may be repr oduced in any.
C ONTENTS A BOUT T HIS G UIDE Conventions 8 Related Documen tation 9 Accessing Online Documentation 9 Pro duct Registrati on 10 Documentation Comments 10 1 I NTR ODUCING THE 3C OM S WITCH 40 X 0 F AMI.
Rules For Interconnecting Units 27 The Power -up Seque nce 2 8 Powering-up th e 3Com Switch 40x0 28 Checking for Correct Operation of LEDs 28 Choosing the Correct 10/100/1000 Cab les 29 Choosing the c.
Default Users and Pas swor ds 53 Changing Default Passwor ds 54 4 P ROB L E M S OLVING Solving Pr oblems Indicated by LEDs 56 Solving Hardwar e Pr oblems 58 Solving Communication Problems 62 Solving S.
I NDEX R EGULATORY N OTICES DUA1770-9AAA04.book Page 6 Monday, April 14, 2003 11:33 AM.
A BOUT T HIS G UIDE This guide provides all the information you need to install and use a 3Com ® Switch 40x0 Family unit in its default state. The guide is intended for use by net work administrators.
8 A BOUT T HIS G UIDE Conventions Ta b l e 1 and Ta b l e 2 list conventions that are used thro ughout this guide. Ta b l e 1 Notice Icons Icon Notice Type Description Information note Information that describes important features or instructions.
Related Documentation 9 Related Documentation In addition to this guide, each Sw itch documentatio n set includes the following: ■ Management Quick Reference Guide This guide contains: ■ a list of software featur es supported by each Switch. ■ a summary of the web interface a nd command line interface commands for the Switch.
10 A BOUT T HIS G UIDE T o 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 scr een will be displayed automatically . 2 Select the Documentation section from the contents page.
1 I NTR ODUCING THE 3C OM S WITCH 40 X 0 F AMILY This chapter contains introductory information about t he 3Com ® Switch 40x0 Family and how it can be used in your network.
12 C HAPTER 1: I NTRODUCING THE 3C OM S WITCH 40 X 0 F AMI LY About the 3Com Switch 40x0 Famil y The 3Com Switch 4050 is a mixed media device which consists of: ■ 12 10BASE-T/100BASE -TX/10 00BASE-T.
About the 3Com Switch 40x0 Family 13 Summary of Ha rd wa re Fe a tu re s Ta b l e 3 summarizes th e hardwar e features that are supported by the Switch 40x0 .
14 C HAPTER 1: I NTRODUCING THE 3C OM S WITCH 40 X 0 F AMI LY 3Com Switch 40x0 Family — Front View Detail Figure 1 3Com Switch 4050 — fr ont view Figure 2 3Com Switch 4060 — fr ont view WAR N IN G : RJ-45 Ports. These are shie lded RJ-45 data sock ets.
3Com Switch 40x0 F am ily — Front View Detail 15 Figure 3 3Com Switch 4070 — fr ont view A fiber port can only be connected to an identical type of port. For example, a 1000BASE-SX por t connec ted to another 1000BASE-SX port will work, whereas a 1000BASE-SX port connected to a 1000BASE-LX port will not work.
16 C HAPTER 1: I NTRODUCING THE 3C OM S WITCH 40 X 0 F AMI LY SFP Ports The 24 SFP (Small Form Factor Plu ggable) ports suppo rt fiber Gigabit Ether net short-wave (SX) and long-wa ve (LX) SFP T ransceivers in any combination.
3Com Switch 40x0 F am ily — Front View Detail 17 LEDs Ta b l e 4 list s LEDs visible on the fr ont of the Switch, and how to read their status according to color . For information on using the LEDs for problem solving, see “Checking fo r Correct Operation of LEDs” on page 28 .
18 C HAPTER 1: I NTRODUCING THE 3C OM S WITCH 40 X 0 F AMI LY Unit Status LED (cont.) Green flashing The Switch is either do wnloading software or is initializing (which inc ludes running a Power On Self Test). Yellow The Switch has failed its Power On Self Test or A port has failed and ha s been automa tically disabl ed.
3Com Switch 40 x0 Fami ly — Rear View Detail 19 * The PSU LEDs are visi ble on the front of the Switch and are mark ed ‘1’ for PSU 1 (bottom) and ‘2’ for PSU 2 (top). 3Com Switch 40x0 Family — Rear View Detail Figure 4 3Com Switch 40x0 Family — r ear view Expansion Module Slot Y ou can use this slot to install an Expansion Module.
20 C HAPTER 1: I NTRODUCING THE 3C OM S WITCH 40 X 0 F AMI LY WAR N IN G : When an Expansion Module is not installed, ensure the blanking plate is fitted by tightenin g all screws with a suitable tool. Replaceable Power Supplies (PSUs) The Switch 40x0 has a bay for two inter nal power supplies.
Default Settings 21 CAUTION: Y ou are advised to replace a failed fan as soon as pos sible. Although the unit will continue to oper ate after a single fan failure its airflow and temperature will be affected. In such circumst ances, the unit may overheat and automatically shutdown.
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2 I NSTALLING THE S WITCH This chapter contains the inf ormation you need to install and set up the Switch 40x0. It covers the following topic s: ■ Package Contents ■ Choosing a Suitable Site ■ .
24 C HAPTER 2: I NSTALLING THE S WITCH Package Contents ■ 3Com Switch 4050 (3C17708), Switch 4060 (3C1 7709) or Switch 4070 (3C17707 ) ■ CD-ROM ■ This Guide ■ Management Quick Reference Guide .
Rack-moun ting 25 ■ The air is as free fr om dust as possible. ■ The Switch is situated away from sour ces of conductive (electrical) dust, for example laser printer s.
26 C HAPTER 2: I NSTALLING THE S WITCH Figure 5 Fitting a bracket for rack-mounting Y ou must use the screws supplied wi th 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.
Creating an XRN Distributed Fabric 27 How T o Interconnect Units T o inter connect any two Switch 40x0 Family or Switch 4900 Family units you will need to o rder the XRN Inter connect Mod ule Kit (3C17715). The kit consists of two XRN Interconnect Modules and an Inter connect Cabl e.
28 C HAPTER 2: I NSTALLING THE S WITCH existing unit. If you do not initializ e the unit, problems may be caused by conflicting Switch configurations. ■ When the Switch units ar e interconnected they ar e assigned a unit number dependent on which XRN Interconnect Cable end is connected to which Switch.
The Power-up Sequence 29 If there is evidence of a problem, see “Solving Problems Indicated by LEDs” on page 56 for a list of suggested solutions . CAUTION: The Switch has no ON/OFF switch; the only method of connecting or disconnecting main s power is by connect ing or disconnecting the power cord.
30 C HAPTER 2: I NSTALLING THE S WITCH connector located, for example, on a Switch rack or patch panel. The RJ-45 connector is now a grounded port. Choosing the correct Fiber cables Choose from the following cable options: ■ The 1000BASE-SX ports can be connec ted to multimode fiber cables only .
GBIC Operation 31 Inserting a GBIC T ransceiver T o be r ecognised as valid, the GB IC transceiver must have the following characteristics: ■ 1000BASE-SX, 1000BASE-LX or 1000BASE-LH70 media type: ■ 1000BASE-SX GBIC transceiver Use this transceiver to connect the Switch directly to a multimode fiber -opt ic cable.
32 C HAPTER 2: I NSTALLING THE S WITCH Figure 7 Inserting a GBIC T ransceiver 3 The transceiver connects to the ne twork using a duplex SC connector . Attach a male duplex SC connector o n the network cab le into the dup lex SC connector on the transceiver .
SFP Operation 33 T o access the latest list of approved SFP transceivers for the Switch on the 3Com Corporation World Wi de W e b site, enter this URL into your internet browser: http://www.
34 C HAPTER 2: I NSTALLING THE S WITCH Figure 8 Inserting an SFP T ransceiver 5 The transceiver connects to the ne twork using a duplex LC connector . Attach a male dupl ex LC connector on the network cab le into the duplex LC connector on the transceiver .
3 S ETTING U P FOR M ANAGEMENT Y our Switch can operate in its default state, that is, you can install it and it will work straight away (plug-and- play). Ho wever , to make full use of the features of fered by the Switch, and to change and monitor th e way it works, you have to acce ss the management software that r esides on the Switch.
36 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Setting Up Overview This section gives an overview of what you need to do to get your Switch set up an d r eady for manageme nt when it is in its def ault state. The whole setup process is summarised in Figur e 9 .
Setting Up Overview 37 users and changing default passwords, see “Default Users and Passwords” on page 53 . IP Configuration Y ou can use one of the fo llowing methods to allocate IP informat ion to your Switch (essential if you wish to manage your Swit ch across the network).
38 C HAPTER 3: S ETTING U P FOR M ANAGEMENT temporary as they cannot be r outed but are useful for small networks which are not connected to other netw orks, or for initial config uration. However , as soon as a DHCP or BootP se rver is detected, the Switch will configure itself with the IP addr ess allocated by that server .
Manually Configuring IP In formation 39 Manually Configuring IP Information Y ou can manually configure the Switch IP information in the following ways: ■ Connecting to a front panel po rt — Connect a workstat ion using an Ether net cable to a front panel port of the Switch.
40 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Connecting the W orkstat ion to the Switch 1 Connect the workstation to a front panel port using an Ethernet cable as shown in Figure 10 .
Manually Configuring IP In formation 41 If there is no response, wait for one minute then re-enter the default IP address. 3 At the login and password pr ompts, enter admin as your u ser name and press Return at the p assword pr ompt (default user name and password).
42 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Figure 11 Example top-level command line interface menu 4 At the Select menu option prompt you can either: ■ enter the protocol ip basicConfig command. At the Enter configuration method prompt enter manual .
Manually Configuring IP In formation 43 ■ Documentation supplied wit h th e terminal emulation softwar e. ■ A suitable cable: ■ A standard null modem cable — if you ar e co nnecting directly to the console port, or ■ A standard modem cable — if y ou are connecting to the console port using a modem.
44 C HAPTER 3: S ETTING U P FOR M ANAGEMENT ■ no parity ■ 1 stop bit ■ no h a rdw a re f l o w co n tro l Refer to the docum entatio n that ac companies the terminal emulation software for mor e information.
Viewing Automati cally Configured IP Informatio n 45 4 Enter the IP address, subnet mask, a nd gateway IP addr ess for the Switch. The screen displays a summary of the information entered.
46 C HAPTER 3: S ETTING U P FOR M ANAGEMENT If your network does not have a DHCP or BootP ser ver , the workstation running 3Com Network Superv isor must be on the same subnet as the Switch, because Auto-IP addresses are non-routable.
Viewing Automati cally Configured IP Informatio n 47 b T ighten the r etaining screws on the cable to prevent it fr om being loosened. c Connect the other end of t he cable to one of the serial ports (also known as a COM port) on your wo rkstation.
48 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Figure 15 Example top-level command line interface menu 4 At the Select menu opt ion pr ompt enter the protocol ip interface summary command. At the Select IP interfaces pr ompt enter all . A summary of the automatically allocated IP information is displayed.
Methods of Managing a Switch 49 Figure 16 CLI management via the console port Figure 17 CLI management over the network Refer to “Setting Up Command Line Interface Management” on page 50 .
50 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Figure 19 SNMP management over the network Refer to “Setting Up SNMP Management” on page 53 . Setting Up Command Line Interface Management This section describ es how you can set up command line interface management using a local console po rt connection or over the network.
Setting Up Web Interface Management 51 4 T o open a T eln et session via the DOS pr ompt, ent er the IP address of the Switch that you wish to manage in the fo llowing format: >telnet xxx.
52 C HAPTER 3: S ETTING U P FOR M ANAGEMENT For the browser to operate the web in terface correctly , JavaScript and Cascading Style Sheets must be enabled on your browser . These featu res are enabled on a browser by default. Y ou will only n eed to enable them if you have changed your browser settings.
Setting Up SNMP Management 53 Setting Up SNMP Management Any network management application running the Simple Network Management Protocol (SNMP) can manage a Switch if: ■ The correct Management Information Bases (MIBs) are installed on the management workstation.
54 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Ta b l e 9 Default Users Use the admin default user name (no password) to login and carr y out initial Switch setup.
4 P RO B L E M S OLVING This chapter help s you to diagnose an d solve problems you may have with the operation of your Switch. There is also an explanation of IP addressing.
56 C HAPTER 4: P ROBLEM S OL VING 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.
Solving Problems Indicated by LEDs 57 ■ connecting a working p ower cord to the ‘pr oblem’ device ■ testing the PSU in the spare slot or another unit ■ installing a nd testin g a second PS U in the ‘pr oblem’ slot If the LED lights flashing r ed the PSU has shutdown due to over -heatin g.
58 C HAPTER 4: P ROBLEM S OL VING So l v i ng H a rd w a re Problems In the rar e event of yo ur Switch unit experiencing a hardwar e failure, refer to the list of suggested solutions below .
Solving Hardware Problems 59 3 Power cycle the unit. T o do this, remove and r e connect the AC mains supply . If the un it has no AC main supply , remove and r econnect th e DC RPS supply . If another fan failur e warning messa ge is generated via the Command Line Interface or the W eb interfa ce, you can replace the fan tray .
60 C HAPTER 4: P ROBLEM S OL VING 6 Power cycle the unit. If a further thermal shutdown trap is received, r eturn the uni t. An SNMP fan fail trap and email is received 1 If the fail trap is for the front fan tray: a Open the door where the bulge is at the fr on t of the Switch.
Solving Hardware Problems 61 4 Power cycle the unit. If a further thermal shutdown occurs, and all environmental conditions ar e satisfactory , return the unit to 3Com.
62 C HAPTER 4: P ROBLEM S OL VING Solving Communication Problems If you experience communication problems with the Switch, ensur e that: ■ The Switch IP address has been configur ed .
Solving Software Upgrade Problems 63 If your IP network is inter nal to your organizat ion only , that is, you do not access the Internet, you ma y use any arbitrary IP address as long as it is not being used by another device on your network. 3Com suggests you use addresses in the range 192.
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A S AFETY I NFORMATION Y ou must read the following safety information before carrying out any installation or removal of components, or any maintenance pr ocedu res on the 3Com Switch 40x0 Family units. WAR N IN G : Wa rnings contain directions that you mu st follow for your personal safety .
66 A PPENDIX A: S AFETY I NFORMATION Important Safety Information WAR N IN G : Installation and removal of the unit must be carried out by qualified personnel only .
Important Safety Information 67 WAR N IN G : The socket out let must be near to the unit and easily accessible. Y ou can only remove power from the unit by disconnecting the power cord from the out let. WAR N IN G : This unit operates under SEL V (Safety Extra Low V oltage) conditions according to IEC 950.
68 A PPENDIX A: S AFETY I NFORMATION WAR N IN G : Fiber Optic ports - Optical Safety Never look at the transmit laser wh ile it is powered-up. Never look directly at the fiber ports and fiber cable ends when they are powered-up.
L’information de Sécurité Importante 69 L ’ information de Sécurité Importante A VERTISSEMENT : L'installation et la dépose de ce groupe doivent être confiés à un personnel qualifié.
70 A PPENDIX A: S AFETY I NFORMATION A VERTISSEMENT : La prise secteur doit se trouver à proximité de l’appareil et son accès doit être facile. V ous ne pouvez mettre l’appareil hors circuit qu'en débranch ant son cor don é lectrique au niveau de cette prise.
L’information de Sécurité Importante 71 A VERTISSEMENT : L'utilisation de contrôle s, de réglages de performances ou de procédures autres que ceu x qui sont spécifiés au sein du présent document risquent d' entraîner l'expo sition à des rayonnements la ser dangereux.
72 A PPENDIX A: S AFETY I NFORMATION Wichtige Sicherheitsinformationen VORSICHT : Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen.
Wichtige S i cherhe itsinformati onen 73 VORSICHT : RJ-45-Port e. Diese Porte si nd geschützte Datensteckdosen. Sie dürfen weder wie norma le tradit ionelle T elefonsteckdosen noch für die V e rbindung der Einheit mit eine m traditionellem pr ivatem oder öffentlichem T elefonn etzwerk gebraucht werden.
74 A PPENDIX A: S AFETY I NFORMATION VORSICHT : Bevor Sie den hinz ufuege n steinbrech erfan, lese n Sie die Sicherheitsanweisungen, die im Handbuch aufgefuehrt sind (3Com Switch 40x0 Reihe).
B P IN - OUTS Null Modem Cable 9-pin t o RS-232 25-pin PC-A T Se rial Cable 9-pin to 9-p in DUA1770-9AAA04.book Page 75 Mond ay, April 14, 2003 11:33 AM.
76 A PPENDIX B: P IN - OUTS Modem Cable 9-pin to RS-232 25-pin RJ-45 Pin Assignments Pin assignments are identical fo r 10/100 and 1000 RJ- 45 connectors.
RJ-45 Pin Assignments 77 T able 11 Pin assignments Pin Number 10/ 100 1000 Ports configured as MDIX 1 Receive Data + Bidirectional Data B+ 2 Receive Data - Bidirectional Data B- 3 Transmit Data + Bidi.
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C T ECHNICAL S PECIFICATIONS Switch 40x0 F amily Physical Dimensions Height: 83 mm (3.5 in.) x W idth: 440 mm (17.3 in.) x Depth: 363.4 mm (14.30 in.) (not including bulge).
80 A PPENDIX C: T ECHNICAL S PECIFICATIONS Standard s Supported SNMP: SNMP protocol (RFC 1 157) MIB-II (RFC 12 13) Bridge MIB (RF C 1493) Bridge MIB Extensions (RFC 267 4) RMON MIB II (RFC 2021) Remote Monitorin g MIB (RFC 1757) MAU MI B (RFC 2239) Ethernet: IEEE 802.
D T ECHNICAL S UPPORT 3Com provides easy access to tech nical support information through a variety of services. This appendix describes these services. Y ou can pu rchase additional ser vices from your networ k supplier or from 3Com. These ser vices can enhance warranty resp onse times.
82 A PPENDIX D: T ECHNICAL S UPPORT 3Com Knowledgebase We b Services The 3Com Knowledg ebase is a databa se of technical information to help you install, upgrad e, configure, or support 3Com products. The Knowledgebase is updated daily with technical information discovered by 3Com technical support engineers.
Support from 3Com 83 Support from 3Com If you are unable to obtain assistan ce from the 3Com online technical resour ces discussed earlier in this appendix, or from your network supplier , 3Com of fers a range of sup port services.
84 A PPENDIX D: T ECHNICAL S UPPORT Here is a list of worldwide technical telephone support numbers. These numbers are corr ect at the time of publication.
Returning Products for Repair 85 Returning Products for Repair Before you send a product dir e ctly to 3Com for repair , you must first obtain an auth orization number . Pr oducts sent to 3 Com without authorization numbers will be return ed to the sender unopened, at the sender’ s expense.
86 A PPENDIX D: T ECHNICAL S UPPORT Contacting 3Com Support Please be aware that to impr ove quality , 3Com might contact you for your view on 3Com customer service. If you do not wish to be contacted , please inform our support repr esentative. Calls may be recorded for training purposes.
I NDEX Numbers 3Com Knowledgebase Web Services 82 3Com URL 81 A access levels of default us ers 53 automatic setup 45 3Com Network Supervisor 45 console port 46 C cable 10/100/1000 29 fiber 30 pin-out.
88 I NDEX RJ45 76 serial cable 75 pin-outs 75 ports 10/100/1000 15 1000BASE-SX 15 GBIC 15 SFP 16 power supplies (PSUs) 20 powering-up a Switch 40 x0 Family 28 problem solving 55 communication problems.
R EGULATORY N OTICES FCC S TATEMENT This equipment has been test ed and found to comply wi th the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonab le protection against harmful interference when the equipment is operated in a co mmercial environment.
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Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il 3Com 4070 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del 3Com 4070 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso 3Com 4070 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul 3Com 4070 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il 3Com 4070, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del 3Com 4070.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il 3Com 4070. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo 3Com 4070 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
