3Com 1100 - 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 1100 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 DQA1695-0AAA0x) This ...

12 C HAPTER 1: I NTRODUCING THE S WITCH 1100 About the SuperStack II Switch 1100 The SuperStack ® II system solves the problem of growth in dynamic network environments and provides everything you need for successful workgroup networking. Much more than a collection of stackable components, the syst...

Switch 1100 — Front View Detail 13 Switch 1100 — Front View Detail Figure 1 Switch 1100 — Front view Port Connections 10BASE-T Ports The Switch has 12 or 24 10BASE-T ports configured as MDIX (cross-over). The maximum segment length is 100m (328ft) over Category 3, 4, or 5 twisted pair cable. As thes...

14 C HAPTER 1: I NTRODUCING THE S WITCH 1100 LEDs Table 3 lists the LEDs visible on the front of the Switch, and their states according to color. For information on using the LEDs for problem solving, see “Checking for Correct Operation” on page 30. Table 3 LED behavior LED Color Indicates TCVR Yell...

Switch 1100 — Rear View Detail 15 Switch 1100 — Rear View Detail Figure 2 Switch 1100 — 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 1100 Expansion Module Slot You can use this slot to install an Expansion Module that provides a high-speed link to the rest of your network, or a Matrix Module that provides four matrix ports for stacking Switch units together. 3Com provides a range of Expansi...

Network Configuration Examples 17 Network Configuration Examples The following illustrations show some examples of how the Switch can be placed on your network. Network Segmentation I Figure 3 shows how the Switch 1100 fits into a large corporate network with a Fast Ethernet infrastructure. A Switch...

18 C HAPTER 1: I NTRODUCING THE S WITCH 1100 Network Segmentation II Figure 4 shows the Switch 1100 in a second workgroup situation. This setup could be that of a small office within a large corporation, or part of a larger corporate network. Most of the switch ports have multiple endstations. Figur...

Network Configuration Examples 19 Desktop Switching Figure 5 shows the Switch 1100 used for a group of users in a large corporate network. Here switching is brought to the desktop with a single endstation per port. Local servers are connected via 100Mbps Fast Ethernet links. Figure 5 Using the Switc...

20 C HAPTER 1: I NTRODUCING THE S WITCH 1100 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 ■ Wall-mounting ■ Placing Units On Top of Each Other ■ Stacking Units ■ The Power-up Sequence ■ Choosing the Correct C...

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 wall-mounted, 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 wa...

Wall-mounting 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 steps 2 and 3 for the ...

26 C HAPTER 2: I NSTALLING THE S WITCH Figure 8 Fitting a bracket for wall-mounting 3 Insert the two screws and tighten with a suitable screwdriver. 4 Repeat steps 2 and 3 for the other side of the Switch. 5 Ensure that the wall you are using is smooth, flat, dry and sturdy. Attach a piece of plywoo...

Placing Units On Top of Each Other 27 Placing Units On Top of Each Other If the Switch units are free-standing, up to four units can be placed one on top of the other. If you are mixing a variety of SuperStack II Switch and Hub units, the smaller units must be positioned at the top. If you are placi...

28 C HAPTER 2: I NSTALLING THE S WITCH As shown in Figure 9, connect one end of the Matrix Cable to the matrix port of the top Switch, and the other end to the matrix port of the lower Switch. Figure 9 A stack of two units Stacking Multiple Units You can connect up to four Switch units to form a sta...

Stacking Units 29 3 Connect the Matrix Cables, as shown in Figure 10: a Connect a Matrix Cable to the port marked Unit 1 on the Matrix Module. Connect the other end of this cable to the matrix port of the Switch that contains the Matrix Module. b Connect a second Matrix Cable to the port marked Unit...

30 C HAPTER 2: I NSTALLING THE S WITCH The Power-up Sequence The following sections describe how to get your Switch 1100 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 u...

Choosing the Correct Cables 31 If there is evidence of a problem, see “Solving Problems Indicated by LEDs” on page 32. Choosing the Correct Cables All of the ports on the front of the Switch 1100 are configured as MDIX (cross-over). If you want to make a connection to another MDIX port, you need a c...

32 C HAPTER 2: I NSTALLING THE S WITCH Solving Problems Indicated by LEDs If the LEDs on the Switch indicate a problem, refer to Table 5 which contains a list of possible problems and suggested solutions. Table 5 Problems indicated by LEDs Problem Suggested Solution A Power LED does not light Check ...

Managing the Switch 33 For information about solving problems when managing the Switch, refer to the Problem Solving chapter in the “SuperStack II Switch Management Guide” (DUA1695-0BAA01). Managing the Switch The Switch contains software that allows you to change and monitor the way it works. This ...

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 1100. WARNING: Warnings contain directions that you must follow for your personal safety. Follow all directions carefully.Y...

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 unit in a stack with SuperStack II Hub units, the Switch 1100 unit must be installed below the narrower Hub units. ■ Th...

Important Safety Information 37 ■ France and Peru onlyThis 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 (gr...

38 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 1100 doit être installée en dessous des unités Hub pl...

L’information de Sécurité Importante 39 que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. ■ France et Pérou uniquement:Ce groupe ne peut pas être alimenté par un dispositif à impédance à la terre. Si vos alimentations sont du type impédance à la terre, ce groupe doit ê...

40 A PPENDIX A: S AFETY I NFORMATION Wichtige Sicherheitsinformationen ■ Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen. ■ Wenn die Switch 1100 Einheit in einer Stapel mit anderen SuperStack II Hub Einheiten eingebaut werden soll, muß die Switch 1100 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 16950ua.bk Page 41 Thursday, August 27, 1998 11:55 AM

42 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 ■...

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 very latest, 3Com recommends that you access the 3Com Corporation ...

46 A PPENDIX D: T ECHNICAL S UPPORT To connect to the 3Com FTP site, enter the following information into your FTP client: ■ Hostname: ftp.3com.com (or 192.156.136.12 ) ■ Username: anonymous ■ Password: <your Internet e-mail address> A user name and password are not needed with Web browser sof...

Support from Your Network Supplier 47 3ComFacts Automated Fax Service The 3ComFacts automated fax service provides technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week. Call 3ComFacts using your Touch-Tone telephone: 1 408 727 7021 Support fro...

48 A PPENDIX D: T ECHNICAL S UPPORT Below is a list of worldwide technical telephone support numbers: Country Telephone Number Country Telephone Number Asia Pacific Rim AustraliaChina From anywhere in China:From Shanghai: Hong KongIndiaIndonesiaJapanMalaysia 1 800 678 515 86 21 6350 159010 800 36568...

Returning Products for Repair 49 Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain a Return Materials Authorization (RMA) number. Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’s expense. To ob...

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. switch A device that interconnects several LANs to form a single logical LAN that ...

I NDEX Numbers 10BASE-T ports 1310BASE-T/100BASE-TX ports 133C number 153Com bulletin board service (3Com BBS) 463Com URL 453ComFacts 47 A auto-negotiating ports 13 B bulletin board service 46 C cable choosing the correct 31Matrix 16maximum length 13, 21pin-outs 41 console port 15conventions notice ...

3Com Corporation L IMITED W ARRANTY S UPER S TACK ® II S WITCH 1100 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...