3Com 3C16980 - Manuals

8 A BOUT T HIS G UIDE 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 o...

Related Documentation 9 Related Documentation In addition to this guide, each Switch 3300 document set includes the following: ■ Management Guide (Part Number DUA1695-0BAA0x) This guide contains all the management information for the Switch. ■ Quick Reference Guide (Part Number DQA1698-0AAA0x) This ...

10 A BOUT T HIS G UIDE In addition, there are other publications you may find useful: ■ Documentation accompanying the Expansion Modules. ■ Documentation accompanying the Advanced Redundant Power System. Year 2000 Compliance For information on Year 2000 compliance and 3Com products, visit the 3Com Y...

12 C HAPTER 1: I NTRODUCING THE S WITCH 3300 About the SuperStack II Switch 3300 The SuperStack ® II Switch 3300 connects your existing 10Mbps devices, connects high-performance workgroups with a 100Mbps backbone or server connection, and connects power users to dedicated 100Mbps ports — all in one ...

Switch 3300 — Front View Detail 13 Switch 3300 — Front View Detail Figure 1 Switch 3300 — front view 10BASE-T/ 100BASE-TX Ports The Switch has 12 or 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, 10...

14 C HAPTER 1: I NTRODUCING THE S WITCH 3300 Table 3 LED behavior LED Color Indicates Port Status LEDs * * If your Switch has 24 10BASE-T/100BASE-TX ports, these ports are numbered 1 to 24. If your Switch has 12 10BASE-T/100BASE-TX ports, these ports are numbered 1 to 12. For both models, ports supp...

Switch 3300 — Rear View Detail 15 Switch 3300 — Rear View Detail Figure 2 Switch 3300 — 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 num...

16 C HAPTER 1: I NTRODUCING THE S WITCH 3300 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. Expansion Module Slot You ca...

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 as a Segmentation Switch The example in Figure 3 shows how a Switch 3300 stack can segment a network of shared 10Mbps and 100Mbps...

18 C HAPTER 1: I NTRODUCING THE S WITCH 3300 Switch 3300 as a Collapsed Backbone Switch The example in Figure 4 shows how a Switch 3300 stack can act as a backbone for both shared and switched network segments. Figure 4 Using the Switch as a collapsed backbone 16980ua.bk Page 18 Friday, April 30, 19...

Network Configuration Examples 19 Switch 3300 as a Desktop Switch The example in Figure 5 shows how a Switch 3300 can be used for a group of users that require dedicated 10Mbps or 100Mbps connections to the desktop. The Switch 3300 stack has a SuperStack II Switch 1000BASE-SX Module that allows it t...

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

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 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 s...

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. You can stack Switch units together in two ways: ■ The matrix port on the rear of the Switch allows you to connect two ...

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 ...

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

The Power-up Sequence 29 The Power-up Sequence The following sections describe how to get your Switch 3300 powered-up and ready for operation. Connecting a Redundant Power System You can connect a SuperStack II Advanced Redundant Power System (part number 3C16071) 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 are configured as MDIX (cross-over). If you want to make a connection to another MDIX port, you...

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. WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefully.Y...

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 II Hub units, the Switch 3300 unit must be installed below the narrower Hub units. ■ Th...

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 II Hub, l'unité Switch 3300 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 Einheit in einer Stapel mit anderen SuperStack II Hub Einheiten eingebaut werden soll, muß die Switch 3300 Einheit unter di...

B P IN - OUTS Null Modem Cable 9-pin to RS-232 25-pin PC-AT Serial Cable 9-pin to 9-pin 16980ua.bk Page 39 Friday, April 30, 1999 9:03 AM

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 Table 6 Pin assignments Pin Number Signal Function Ports configured as MDI 1 TxData + Transmit data 2 TxData – Transmit data 3 RxData + Receiv...

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 Your Network Supplier 47 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...

48 A PPENDIX D: T ECHNICAL S UPPORT When you contact 3Com for assistance, have the following information ready: ■ Product model name, part number, and serial number ■ A list of system hardware and software, including revision levels ■ Diagnostic error messages ■ Details about recent configuration ch...

Returning Products for Repair 49 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 auth...

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. auto-negotiati...

52 G LOSSARY 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. Collisions a...

G LOSSARY 53 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 E...

54 G LOSSARY 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 addresse...

G LOSSARY 55 SNMP Simple Network Management Protocol. The current IETF standard protocol for managing devices on an TCP/IP network. stack A group of network devices that are integrated to form a single logical device. STP See Spanning Tree Protocol (STP) . switch A device that interconnects several ...

I NDEX Numbers 10BASE-T/100BASE-TX ports 133C number 153Com bulletin board service (3Com BBS) 463Com Knowledgebase Web Services 453Com URL 453ComFacts 47 A auto-negotiating ports 13 B bulletin board service 46 C cable choosing the correct 30Matrix 16maximum length 13, 21pin-outs 39 console port 16co...

3Com Corporation L IMITED W ARRANTY S UPER S TACK ® II S WITCH 3300 H ARDWARE 3Com warrants this hardware product to be free from defects in workmanship and materials, under normal use and service, for the following length of time from the date of purchase from 3Com or its authorized reseller: 3Com’...

EMC S TATEMENTS 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 commercial...