3Com 16985ua.bk - Manuals

10 A BOUT T HIS G UIDE Year 2000 Compliance For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page: http://www.3com.com/products/yr2000.html Documentation Comments Your suggestions are very important to us. They will help make our documentation more useful to yo...

12 C HAPTER 1: I NTRODUCING THE S WITCH 3300 MM About the SuperStack 3 Switch 3300 MM The SuperStack ® 3 Switch 3300 MM connects: ■ your existing 10Mbps devices. ■ high-performance workgroups with a 100Mbps backbone or server connection. ■ users to dedicated 100Mbps ports in one switch. In addition,...

Switch 3300 MM — Front View Detail 13 Switch 3300 MM — Front View Detail Figure 1 Switch 3300 MM — front view 10BASE-T/ 100BASE-TX Ports The Switch has 24 auto-negotiating 10BASE-T/100BASE-TX ports configured as MDIX (cross-over). These ports can be set to 10BASE-T half duplex, 10BASE-T full duplex,...

14 C HAPTER 1: I NTRODUCING THE S WITCH 3300 MM Table 3 LED behavior LED Color Indicates 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. Green flashi...

Switch 3300 MM — Rear View Detail 15 Switch 3300 MM — Rear View Detail Figure 2 Switch 3300 MM — 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 s...

16 C HAPTER 1: I NTRODUCING THE S WITCH 3300 MM Console Port The console port allows you to connect a terminal and perform remote or local out-of-band management. The console port uses standard null modem cable and is set to auto-baud, 8 data bits, no parity and 1 stop bit. Matrix Ports The Matrix p...

Network Configuration Examples 17 Network Configuration Examples The following illustrations show some examples of how the Switch can be used in your network. Switch 3300 MM as a Segmentation Switch The example in Figure 3 shows how a Switch 3300 MM stack can segment a network of shared 10Mbps and 1...

18 C HAPTER 1: I NTRODUCING THE S WITCH 3300 MM Switch 3300 MM as a Collapsed Backbone Switch The example in Figure 4 shows how a Switch 3300 MM stack can act as a backbone for both shared and switched network segments. Figure 4 Using the Switch as a collapsed backbone Switch 1100/3300 Endstations o...

Network Configuration Examples 19 Switch 3300 MM as a Desktop Switch The example in Figure 5 shows how a Switch 3300 MM can be used , within a stack, for a group of users that require dedicated 10Mbps or 100Mbps connections to the desktop. The Switch 3300 SM provides a Gigabit Ethernet connection to...

20 C HAPTER 1: I NTRODUCING THE S WITCH 3300 MM 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 ne...

Configuration Rules with Full Duplex 21 The key topology rules are: ■ 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. ■ A total network span of 325m (1066ft)...

2 I NSTALLING THE S WITCH 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 ...

24 C HAPTER 2: I NSTALLING THE S WITCH 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 ki...

Placing Units On Top of Each Other 25 Figure 7 Fitting a bracket for rack mounting 3 Insert the two 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 ste...

26 C HAPTER 2: I NSTALLING THE S WITCH 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. The Matrix Ports on the rear of the Switch allow you to connect a total of four units in the Switch 1100/3300 family to...

Stacking Units 27 Figure 8 A stack of two units Stacking Up To Four Units You can stack an additional three units from the SuperStack ll 1100/3300 family to the Switch 3300 MM. To stack up to four Switch units: 1 Power-off all the units. 2 Arrange the units as required. They can be rack-mounted or f...

28 C HAPTER 2: I NSTALLING THE S WITCH 4 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...

The Power-up Sequence 29 The Power-up Sequence The following sections describe how to get your Switch 3300 MM powered-up and ready for operation. Connecting a Redundant Power System You can connect a SuperStack Advanced Redundant Power System (part number 3C16071B) to the Switch. This unit, which is...

30 C HAPTER 2: I NSTALLING THE S WITCH If there is evidence of a problem, see “Solving Problems Indicated by LEDs” on page 31 . Choosing the Correct Cables All of the ports on the front of the Switch 3300 MM are configured as MDIX (cross-over). If you want to make a connection to another MDIX port, ...

Solving Problems Indicated by LEDs 31 Solving Problems Indicated by LEDs If the LEDs on the Switch indicate a problem, refer to Table 5 which contains a list of problems and suggested solutions. For information about solving problems when managing the Switch, refer to the Problem Solving chapter in ...

32 C HAPTER 2: I NSTALLING THE S WITCH Managing the Switch The Switch contains software that allows you to change and monitor the way it works. This management software is not required to get the Switch working, but if you do use it, you may improve the efficiency of the Switch and therefore improve...

A S AFETY I NFORMATION You must read the following safety information before carrying out any installation or removal of components, or any maintenance procedures on the Switch 3300 MM. WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefull...

34 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 unit in a stack with SuperStack Hub units, the Switch 3300 MM unit must be installed below the Hub units. ■ The unit sh...

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 (g...

36 A PPENDIX A: S AFETY I NFORMATION 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 Hub, l'unité Switch 3300 MM doit être installée en dessous des unités Hub pl...

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 n...

38 A PPENDIX A: S AFETY I NFORMATION Wichtige Sicherheitsinformationen ■ Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. ■ Wenn die Switch 3300 MM Einheit in einer Stapel mit anderen SuperStack Hub Einheiten eingebaut werden soll, muß die Switch 3300 MM Einheit unter...

B P IN - OUTS Null Modem Cable 9-pin to RS-232 25-pin PC-AT Serial Cable 9-pin to 9-pin Screen TxD RxDGround RTSCTS DSR DCDDTR Screen RxD TxDGround RTSDTR CTS DSRDCD Shell 3 25 78 6 14 1 3 27 420 5 68 Switch 3300 MMCable connector: 9-pin female PC/TerminalCable connector: 25-pin male/female only req...

40 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 100BASE-TX RJ45 connectors Screen TxD RxDRTS CTSDSR Ground DCDDTR Screen TxD RxDRTS CTSDSR Ground DCDDTR Shell 3 27 86 5 14 1 23 45 6 78 20 Switch 3300 MMCable connector...

RJ45 Pin Assignments 41 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 Table 6 Pin assignments Pin Number Signal Function 16985ua.bk Page 41 Thursday, September 7, ...

44 A PPENDIX C: T ECHNICAL S PECIFICATIONS Standards Supported SNMP SNMP protocol (RFC 1157) MIB-II (RFC 1213) Bridge MIB (RFC 1493) Repeater MIB (RFC 1516) VLAN MIB (RFC 1573) RMON MIB (RFC 1271) BOOTP (RFC 951) Terminal Emulation Telnet (RFC 854) Protocols Used for Administration UDP (RFC 768) IP ...

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 recent information, 3Com recommends that you access the 3Com ...

46 A PPENDIX D: T ECHNICAL S UPPORT 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: ■ Hostnam...

Support from 3Com 47 ■ Diagnostic error messages ■ Details about recent configuration changes, if applicable Here is a list of worldwide technical telephone support numbers: Country Telephone Number Country Telephone Number Asia, Pacific Rim AustraliaHong KongIndiaIndonesiaJapanMalaysiaNew ZealandPa...

48 A PPENDIX D: T ECHNICAL S UPPORT Returning Products for Repair 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. To obtain an a...

G LOSSARY 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. 1000BASE-SX Th...

50 G LOSSARY information to forward packets based on their destination address. This process is known as filtering. broadcast A packet sent to all devices on a network. broadcast storm Multiple simultaneous broadcasts that typically absorb all the available network bandwidth and can cause a network ...

52 G LOSSARY loop An event that occurs when two network devices are connected by more than one path, thereby causing packets to repeatedly cycle around the network and not reach their destination. MAC Media Access Control. A protocol specified by the IEEE for determining which devices have access to...

53 server A computer in a network that is shared by multiple endstations. Servers provide endstations with access to shared network services such as computer files and printer queues. SLIP Serial Line Internet Protocol. A protocol that allows IP to run over a serial line (console port) connection. S...

54 G LOSSARY unicast A packet sent to a single endstation on a network. WAN Wide Area Network. A communications network that covers a wide area. A WAN can cover a large geographic area, and may contain several LANs within it. 16985ua.bk Page 54 Thursday, September 7, 2000 9:15 AM

I NDEX Numbers 10BASE-T/100BASE-TX ports 133C number 153Com Knowledgebase Web Services 453Com URL 45 A auto-negotiating ports 13 C cable choosing the correct 30Matrix 16maximum length 13, 21pin-outs 39 console port 16conventions notice icons, About This Guide 8text, About This Guide 8 cross-over con...

3Com Corporation L IMITED W ARRANTY This warranty applies to customers located in the United States, Australia, Canada (except Quebec), Ireland, New Zealand, U.K., and other English language countries, and countries for which a translation into the local language is not provided. S UPER S TACK ® 3 S...

does not transfer to 3Com until the returned item is received by 3Com. The repaired or replaced item will be shipped to Customer, at 3Com's expense, not later than thirty (30) days after 3Com receives the defective product, and 3Com will retain risk of loss or damage until the item is delivered to C...

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 provide reasonable protection against harmful interference when the equipment is operated in a comme...