Manuale d’uso / di manutenzione del prodotto 3C16987A del fabbricante 3Com
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http://www.3com.com/ Part No. DUA1698-5AAA04 Published November 2001 SuperStack ® 3 Switch 3300 XM, SM, TM, MM User Guide 3C16985B, 3C 16987A, 3C1698 6A, 3C16988A 1697ua.
3Com Corporati on 5400 Bayfront Plaza Santa Clara, Califor nia 95052-8145 Copyright © 2001, 3Com T echnologies. All rights r eserved. No part of this documentation may be repr oduced in any form or b.
C ONTENTS A BOUT T HIS G UIDE Conventions 8 Related Documentation 9 Documentation Comments 10 Product Registration 10 1 I NTRO DUCING THE S WITCH 3300 XM, SM, TM, MM About the Switch 12 Summary of Fea.
2 I NSTALLING THE S WITCH Choosing a Suita ble Site 26 Rack-mounting 27 P l a c i n gU n i t sO nT o po fE a c hO t h e r 2 8 Stacking Units 29 Stacking T wo Units 29 Stacking Up T o Four Units 30 The.
Support fr om Y our Network Supplier 52 S u p p o r tf r o m3 C o m 5 2 Retur ning Products for Re pair 54 G LOSSARY I NDEX R EGULATORY N OTICES 1697ua.
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A BOUT T HIS G UIDE This guide provides all the information you need to install and use a SuperStack ® 3 Switch 3300 XM (3C16985B), 33 00 SM (3C16987A), 3300 TM (3C16986A) or 3300 MM (3C169 88A) unit with default settings.
8 A BOUT T HIS G UIDE Conventions T able 1 and T able 2 list conventio ns that are used throughout this guide. Ta b l e 1 Notice Icons Icon Notice Type Description Information note Information that de.
Related Documentation 9 Related Documentation In addition to this guide, each Switch 3300 XM, SM, TM, MM document set includes the following: ■ Management Guide This guide con tains all the manag ement information f or the Swit ch. It is supplied on the SuperStack Switch CD-ROM.
10 A BOUT T HIS G UIDE In addition, there ar e other publications you may find useful: ■ Documentation accompanying the Advanced Redundant Po wer System. Documentation Comments Y our suggestions are very important to us. They will help make our documentation more useful to you.
1 I NTR ODUCING THE S WITCH 3300 XM, SM, TM, MM This chapter contains introductory information about th e Switch and how i tc a nb eu s e di ny o u rn e t w o r k .
12 C HAPTER 1: I NTRODUCING THE S WITCH 3300 XM, SM, TM, MM About the Switch The SuperSta ck ® 3 Switch 3300 XM, SM, TM, or MM connects: ■ your existing 10Mbps devices. ■ high-performance workgroups with a 100Mbps or 1000Mbps backbone or server connection.
Switch — Front View Detail 13 Switch — Front Vie w De ta il Figure 1 Switch 3300 SM — fr ont view Figure 2 Switch 3300 XM — fr ont view Figure 3 Switch 3300 TM — fr ont view Figure 4 Switch .
14 C HAPTER 1: I NTRODUCING THE S WITCH 3300 XM, SM, TM, MM 10BASE-T/ 100BASE-TX Ports The Switch has 24 auto-negotiat ing 10BASE-T/100BASE-TX por ts configured as MDIX (cr oss-over).
Switch — Front View Detail 15 . Ta b l e 3 LED behavior LED Color Indica tes Port Status LEDs Packet Yellow Packets are being transmitted/received on the port . Off No packets are being transmitted /received on the port. Status Green A link is present, and the port is enabled.
16 C HAPTER 1: I NTRODUCING THE S WITCH 3300 XM, SM, TM, MM Switch — Rear Vie w De ta il Figure 5 Switch 3300 XM, SM and TM — rea r v i e w Figure 6 Switch 3300 MM — r ear view Unit Information .
Switch — Rear View Detail 17 Console Port The console p ort allows you to connect a terminal and perfo rm remote or local out-of-band management. The con sole port uses standard null modem cable and is set to auto-baud, 8 data bits, no parity and 1 stop bit.
18 C HAPTER 1: I NTRODUCING THE S WITCH 3300 XM, SM, TM, MM Network Configuration Examples The following illustrations s how some examples of h ow the Switch can be used in your network.
Network Configuration Examples 19 Switch as a Collapsed Backbone Switch The example in Figure 8 shows how a Switch 3300 TM stack can act as a backbone for both shared and switched network segments.
20 C HAPTER 1: I NTRODUCING THE S WITCH 3300 XM, SM, TM, MM Switch as a Desktop Switch The example in Figure 9 shows how the Switch can be used for a group of users that r equire dedicated 10Mbps or 100Mbps conn ections to the desktop.
Configuration Rules for Fast Ethernet 21 Configuration Rules f o rF a s tE t h e r n e t The topology rules for 100Mbps Fast Ether net are slightly differ ent to those for 10Mbps Et hern et. Figure 10 illustrates the key topology rules and provides examples of how they allow for large-scale F ast Ether net networks.
22 C HAPTER 1: I NTRODUCING THE S WITCH 3300 XM, SM, TM, MM The key topology rules are: ■ Maximum UTP ca ble length is 100 m (328ft) ove r Category 5 cable . ■ A 412m (1352ft) fiber run is allowed for connecting switch-to-switch, or endstation-to-switch, using half -duplex 100BASE-FX.
Configuration Rules for Gigabit Ethernet (SM and TM) 23 Configuration Rules for Gigabit Ether net (SM and TM) Gigabit Ether net is designed to run over four media: ■ Single-mode fiber optic cable, with connections up to 5km. ■ Multimode fiber optic cable, with connections u p to 550m.
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2 I NSTALLING THE S WITCH This chapter contains the informat ion you need to install and set up the Switch. It covers the following to pics: ■ Choosing a Suitable Site ■ Rack-mounting ■ Placing .
26 C HAPTER 2: I NSTALLING THE S WITCH Choosing a Suitable Site The Switch is suited for use in an office envir onment where it can be mounted in a standard 19-inch equipment rack, or fr ee standing. Alter natively , the Switch can be rack-moun ted in a wiring closet or equipment room.
Rack-mount ing 27 Rack-mounting The Switch is 1U hi gh and fits in most sta ndar d 19-inc h racks. CAUTION: Disconnect all c ables from the Switch befor e continuing. Remove all self adhesive pads from the underside of the Switch if they have been fitted.
28 C HAPTER 2: I NSTALLING THE S WITCH Placing Units On T o po fE a c hO t h e r If the Switch units are fr ee-standing, up to four units can be placed one on top of the other . If you a r e mixing a variety of SuperStack Switch and Hub units, the smaller units must be positioned a t the top.
Stacking Units 29 Stacking Units Units in the Switch 1100/3300 family can be stacked together and then treated as a single manageable unit with one IP ad dress. T h eM a t r i xP o r to nt h er e a ro ft h eS w i t c hS M ,T Ma n dX Ma l l o w sy o ut o connect two Switch units back-to-back.
30 C HAPTER 2: I NSTALLING THE S WITCH Figure 12 A stack of two units Stacking Up T o Four Units Y ou can stack up to f our Switch units using one Switch 3300 MM an d the appropriate number of Matrix Cables. Only one SuperStack 3 Switch 3300 MM unit can be fitted per stack.
Stacking Units 31 4 If you use the management softwar e of the units: ■ Ensure that all the units have the same version of man agement software ■ Ensure that you r e-configur e the stack-wide features on all the units For more information about management software, see “ Managing the Switch ” on page 34 .
32 C HAPTER 2: I NSTALLING THE S WITCH The Power -up Sequence The following sections describe how to get your Switch 3300 XM, SM, TM or MM powered-up and r eady for operation. Connecting a Redundant Power System Y ou can connect a SuperStack Advanced Redundant Power System (par t number 3C16071B) to the Switch.
Choosing the Co rrect Cables 33 If there is evidence o f a problem, see “ Solving Pr oblems Indicated by LEDs ” on page 34. Choosing the Correct Cables All of the ports on th e front of the Switch 3300 XM, SM, TM and MM are configured as MDIX (cr oss-over).
34 C HAPTER 2: I NSTALLING THE S WITCH Solving Problems Indicated by LEDs If the LEDs on the S witch indicat e a pr oblem, r ef er to T able 6 which contains a list of problems and suggested solutions.
A S AFETY I NFORMATION Y ou must read the following safety information bef ore carrying out any installation or removal of components, or any maintenance procedur es on the Switch 3300 XM, SM, TM or MM. WA RN I N G : Warnings contain directions that you must follow for your personal safety .
36 A PPENDIX A: S AFETY I NFORMATION Important Safety Information ■ Installation and removal of the unit must be carried out by qualified personnel only . ■ If installing the Switch u nit in a stack with SuperStack Hub units, the Switch 3300 XM, SM, TM or MM unit must be installed below the Hub units.
Important Safety Inform ation 37 ■ France and Peru only: This unit canno t 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 connect ion point labelled Neutral, connected directly to earth (ground).
38 A PPENDIX A: S AFETY I NFORMATION L ’ information de S é curit é Importante ■ L'installation et la d é pose de ce groupe doivent ê tr e confi é s à un personnel qualifi é .
L ’ information de S é curit é Importante 39 ■ L ’ appareil fonctionne à une tension ext r ê mement basse de s é curit é qui est conforme à la norme CEI 95 0. Ces conditions ne sont maintenues que si l' é quipement auquel il est raccor d é fonctionne dans les m ê mes conditions.
40 A PPENDIX A: S AFETY I NFORMATION Wichtige Sicherheitsinformat ionen ■ Die Installation und der Ausbau des Ger ä ts darf nur durch Fachpersonal erfolgen.
Wichtige S icherheitsi nformationen 41 WARNHINWEIS: Faseroptikanschl ü sse - Optische Sicherheit. Niemals mit einem V ergr öß erungsger ä te i n e n Ü bertragungs-Laser betrachten, w ä hrend dieser eingeschaltet ist. Niemals direkt auf den Faser Anschlu ß und auf die Faserkabelen den schauen, w ä hrend diese eingeschaltet sind.
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B P IN - OUTS Null Modem Cable 9-pin to RS-232 25-pin PC-A T Serial Cable 9-pin to 9-p in Screen TxD RxD Ground RTS CTS DSR DCD DTR Screen RxD TxD Ground RTS DTR CTS DSR DCD Shell 3 2 5 7 8 6 1 4 1 3 .
44 A PPENDIX B: P IN - OUTS Modem Cable 9-pin to RS-232 25-pin RJ45 Pin Assignments Pin assignments are identical for 10BASE-T and 100B ASE-TX RJ45 connectors Screen TxD RxD RTS CTS DSR Ground DCD DTR.
RJ45 Pin Ass ignments 45 Ports configured as MDIX 1 RxData + Receive Data 2 RxData – Receive Data 3 TxData + Transmit data 4 Not assigned 5 Not assigned 6 TxData – Transmit data 7 Not assigned 8 Not assigned Ta b l e 7 Pin assignments Pin Number Signal Function 1697ua.
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C T ECHNICAL S PECIFICATIONS Switch 3300 XM, SM a nd MM Physical Dimensions Height: 43.6mm x Width: 44 0mm x Depth: 247.5mm Weight: 5kg (11lbs) Environmental Requir ements Operating Temperature 0 ° t.
48 A PPENDIX C: T ECHNICAL S PECIFICATIONS Switch 3300 TM Standards Supported SNMP SNMP protocol (RFC 1157) MIB-II (RFC 1213 ) Bridge MIB (RFC 149 3) Repeater MIB (RFC 1516) VLAN MIB (RFC 157 3) RMON .
Switch 3300 TM 49 Standards Supported SNMP SNMP protocol (RFC 1157) MIB-II (RFC 1213 ) Bridge MIB (RFC 149 3) Repeater MIB (RFC 1516) VLAN MIB (RFC 157 3) RMON MIB (RFC 1271 ) BOOTP (RFC 951) T ermina.
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D T ECHNICAL S UPPORT 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 r ecent informatio n, 3Com r ecommends that you access the 3Com Corporatio n W orld Wide Web site.
52 A PPENDIX D: T ECHNICAL S UPPORT 3Com F TP Site Download drivers, patches, sof twar e, and MIBs acr oss the Internet from th e 3Com public F TP site. This service is available 24 hours a day , 7 days a week. T o co nnect to the 3Com F TP site, enter the following information into your F TP client: ■ Hostname: ftp.
Support from 3Com 53 ■ A list of system har dwar e and software , including re vision levels ■ Diagnostic error messages ■ Details about r ecent configuration changes, if applicable Here is a list of worldwide technical telephone support numbers.
54 A PPENDIX D: T ECHNICAL S UPPORT Returning Products for Repair Before you send a pr oduct dir ectly to 3Com for repair , you must first obtain an authorization number . Products sent to 3Com without authorization numbers will be return ed to the sender unopened, at the sender ’ s expense.
G LOSSARY 10BASE-T The IEEE specification fo r 10Mbps Ether net over Category 3, 4 or 5 twisted pair cable. 100BASE-FX Th e IEEE specification for 100Mbps Fast Et her net over fiber -optic cab le. 100BASE-TX The IEEE specification fo r 100Mbps Fast Ether net o ver Category 5 twisted-pair cable.
56 G LOSSARY information to forward packets based on th eir destination address. This process is known as filtering. broadcast A packet sen t to all devices on a netwo rk. broadcast s torm Multiple simultaneous broadcasts that typically absorb all the available network bandwidth and can cause a network to fail.
57 full duplex A system that allows packets to be transmitted and received at the same time and, in effect, doubles the potential throughput of a link. half duplex A system that allows packets to transmitted and received, but not at the same time. Contrast with full duplex .
58 G LOSSARY loop An event that occurs when two n etwork devices are connected by mor e than one path, thereby causing packets to r epeatedly cycle around the network and not reach their destination. MAC Media Access Contr ol. A protocol specified by the IEEE for determining which devices have access to a networ k at any one time.
59 server A computer in a network that is shared by multiple endstations. Servers provide endstations with access to shar ed network services such as computer files and printer queues. SLIP Serial Line Inter net Protocol. A pr otocol that allows IP to run over a serial line (console p ort) connection.
60 G LOSSARY unicast A packet sent to a single endsta tion on a network. WA N W ide Area Network. A communications network that covers a wid e area. A W AN can cover a la rge geographic area, and m ay contain several LANs within it.
I NDEX 61 I NDEX Numbers 1000BASE-SX port 14 1000BASE-T port 14 10BASE-T/100BASE-TX ports 14 3C number 16 3Com Knowledgebase Web Services 51 3Com URL 51 A auto-negotiating ports 14 C cable choosing th.
62 I NDEX auto-negotiating 14 console 17 matrix 17 power socket 16 powering-up a Switch 32 Powering-up the Switch 32 Power -up sequence 32 pr oduct name 16 R rack mounting a Switch 27 Redundant Power System.
R EGULATORY N OTICES FCC S TATEMENT 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 pro vide reasonable protectio n against harmful interference when the equipment is operated in a commercial 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 3C16987A 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 3C16987A - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso 3Com 3C16987A imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul 3Com 3C16987A ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il 3Com 3C16987A, 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 3C16987A.
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 3C16987A. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo 3Com 3C16987A 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.
