® Part No.
3Com Corporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145 © 3Com Europe Ltd, 1996. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Europe Ltd. 3Com Europe Ltd.
IMPORTANT SAFETY INFORMATION WARNING: Warnings contain directions that you must follow for your personal safety. Follow all instructions carefully. Please read carefully and thoroughly the following information before installing the AccessBuilder 7000 Bridge/Router Module: ■ Exceptional care must be taken during installation and removal of the module.
WICHTIGE SICHERHEITSHINWEISE ACHTUNG: Die Warnungen enthalten Anweisungen, die Sie zur eigenen Sicherheit zu befolgen haben. Lesen Sie bitte die folgenden Informationen sorgfältig durch, bevor Sie den AccessBuilder 7000 Bridge/Router Module einbauen: ■ Auf besondere Vorsicht muß während des Ein- und Ausbaus des Einheits geachtet werden.
L’INFORMATION DE SÉCURITÉ IMPORTANTE AVERTISSEMENT: Les avertissements contiennent les instructions que vous devez suivre pour votre sécurité personnelle. Suivre toutes les instructions avec soin. Veuillez lire à fond l’information suivante avant d’installer le moyeu: ■ Le soin exceptionnel doit être pris pendant l’installation et l’enlèvement du moyeu.
CONTENTS IMPORTANT SAFETY INFORMATION WICHTIGE SICHERHEITSHINWEISE L’INFORMATION DE SÉCURITÉ IMPORTANTE ABOUT THIS GUIDE Introduction 1 How to Use This Guide 2 Conventions 3 Additional Safety Information 4 1 BRIDGE/ROUTER MODULE Introduction 1-1 Benefits of ISDN 1-2 Using ISDN to Support Leased Line WAN Circuits 1-3 Principal Features 1-4 Typical Applications 1-5 Novell Network 1-5 IP Host on the Same IP Network 1-7 IP Host on Another IP Network 1-9 Internet or PPP Router 1-10 Multiple Connections from a
2 INSTALLATION AND OPERATION Overview 2-1 Installing The Module 2-2 BRI Bridge/Router Module 2-2 PRI Bridge/Router Module 2-2 Installation 2-2 Installing the Rear Card 2-4 Installing the Front Card 2-5 Connecting the Cables 2-6 ISDN Ports 2-6 LAN Ports 2-6 Manager 2-6 WAN Ports 2-7 Front Panel LEDs 2-8 BRI Bridge/Router 2-8 PRI Bridge/Router 2-9 Monitoring ISDN Line Usage 2-10 Configuring the Bridge/Router Module Setting Up a WAN Link 2-11 2-10 3 TROUBLESHOOTING Troubleshooting Guide 3-1 Management Proble
A BRIDGE/ROUTER SPECIFICATION AND CABLE PIN ASSIGNMENTS Specifications A-1 LAN Connector Interfaces A-1 WAN Connector Interface A-1 ISDN Connector Interface A-1 BRI Bridge/Router Module A-1 PRI Bridge/Router Module A-1 Management Connector Interface A-2 Bridge Characteristics A-2 Performance A-2 Approvals A-3 Physical Description A-3 LAN Port Pin Assignments A-4 AUI Cable A-4 10BaseT Connecting Cable A-5 ISDN Port Cable Pin Assignments A-5 WAN Port Cable Pin Assignments A-6 X.21/V.11 A-6 V.24/V.28 A-7 V.
INDEX LIMITED WARRANTY FCC CLASS A VERIFICATION STATEMENT
ABOUT THIS GUIDE Introduction This guide describes the features, installation and configuration of the AccessBuilder 7000 Bridge/Router Module. There are two versions of this module: ■ AccessBuilder 7000 BRI Bridge/Router Module - 3C400080 ■ AccessBuilder 7000 PRI Bridge/Router Module - 3C404085 These modules are installed and configured in the same way. The PRI Bridge/Router Module is not connected to ISDN directly however, but connects through the AccessBuilder 7000 PRI Interface Module.
2 ABOUT THIS GUIDE How to Use This Guide This table shows where to find specific information: If you are looking for information on: Turn to: The Bridge/Router Module’s features and typical uses. Chapter 1 Installation and descriptions of the front panel LEDs and rear panel connectors. Chapter 2 Troubleshooting and problem solving. Chapter 3 Technical Information and cable specifications. Appendix A Technical Support.
Conventions Conventions The icon conventions that are used throughout this guide are: Icon Type Description Information Note Information notes call attention to important features or instructions. Caution Cautions alert you to personal safety risk, system damage, or loss of data. Warning Warnings alert you to the risk of severe personal injury. The text conventions used in this guide are: Convention Description “Enter” vs.
4 ABOUT THIS GUIDE Additional Safety Information See also the Important Safety Information at the front of this guide. When using the unit, observe the following safety information: ■ Retain this user’s guide for later use and pass it on in the event of change of ownership of the unit. ■ Protect the unit from sudden, transient increases and decreases in electrical power by fitting an in-line surge suppressor or uninterruptable power supply.
Additional Safety Information 5 ■ This unit contains a lithium battery which is attached to a microchip on the printed circuit board. The defective battery must be disposed of safely in-line with the manufacturers instructions. ■ Interconnecting directly, or by way of other apparatus, to ports complying with SELV requirements may produce hazardous conditions on the network. Advice should be sought from a competent engineer before such a connection is made.
6 ABOUT THIS GUIDE
1 BRIDGE/ROUTER MODULE Introduction This chapter outlines the features and uses of the AccessBuilder 7000 Bridge/Router Module when installed in the AccessBuilder 7000 Access Concentrator chassis. There are two versions of the Bridge/Router Module: ■ BRI Bridge Router Module – Connects directly to two Basic Rate ISDN lines (four ISDN channels) and has two WAN ports for connection to leased line services.
1- 2 CHAPTER 1: BRIDGE/ROUTER MODULE Typically, the Bridge/Router module is used to interconnect LANs running protocols such as Transmission Control Protocol/Internet Protocol (TCP/IP) or Novell Internetwork Packet Exchange (IPX). The module offers full LAN-to-LAN connectivity at speeds up to 64 Kilobits per second (Kbps) on each ISDN channel (128 Kbps in total) and up to 2 Megabits per second (Mbps) on the WAN port. The maximum bandwidth of the Bridge/Router Module is 2 Mbps.
Introduction 1-3 installation and rental of ISDN lines has dropped to the point where it is extremely attractive as regards cost and performance. Using ISDN to Support Leased Line WAN Circuits ISDN provides an ideal service to connect remote LANs. To be effective, the connecting bandwidth needed is at least 56 Kbps to achieve a realistic throughput. Slower speed links can be used but usually only when usage is low and infrequent, or if higher speed circuits cannot be provided.
1- 4 CHAPTER 1: BRIDGE/ROUTER MODULE Principal Features The principal features of the Bridge/Router Module are: ■ Easy to install, configure and support. ■ BRI Bridge/Router Module – 2 x Basic Rate Interface ISDN, 2B+D port, supporting Basic Rate interface of two 64 Kbps channels (or possibly two 56 Kbps channels in the USA) and a 16 Kbps control channel. Available with a U or S ISDN interface.
Typical Applications 1-5 Typical Applications The Bridge/Router module is ideally suited for large central sites providing access for remote users to central site services over ISDN or leased lines. This section describes four of the most common applications of the Bridge/Router module using ISDN. All of these configurations can be carried out using the Quick Configuration option and no further configuration is necessary to make the unit operational.
1- 6 CHAPTER 1: BRIDGE/ROUTER MODULE When no data is being passed between the workstation and server, the Bridge/Router Module closes the ISDN connection and the units at each end of the link spoof the Novell IPX protocol so that both the workstation and server believe the connection is still valid. As soon as the unit identifies that data needs to be passed to the server, the ISDN connection is re-established without the user being aware of ever being disconnected.
Typical Applications 1-7 IP Host on the Same IP Network If your organization operates a TCP/IP network and needs to extend the IP network over geographically remote sites, it is possible to bridge the network using the Bridge/Router Module. It is only possible to bridge where both sites have the same network address and the devices are on the same subnet. In a class C IP address, the network address is the first three groups of numbers. For example: 192.100.100.
1- 8 CHAPTER 1: BRIDGE/ROUTER MODULE There are some issues about which you should be aware when implementing an IP bridging solution. ■ Although calls to the remote site are only generated when data is addressed to a specific IP host or hosts (in our example, 191.100.100.100), any data that cannot be identified as local is also passed over the link while it is open. This can prevent the link from closing after the intended data has been transferred.
Typical Applications 1-9 IP Host on Another IP Network Most organizations using TCP/IP protocols on their network, choose to subnet remote sites or even to have them on different networks. This requires that connections to remote sites are routed rather than bridged. The advantage of routing over bridging is that calls to the remote site are only made when data is specifically addressed to a remote network.
1-10 CHAPTER 1: BRIDGE/ROUTER MODULE Internet or PPP Router Some small businesses need high-speed connections into the Internet or need to connect to large global networks used by larger organizations. When communicating with another AccessBuilder ISDN bridge/router, the unit uses FastConnect, its own proprietary high speed protocol. However, in order to connect with other routers it needs to be configured to use the slower PPP protocol. PPP is used by many other routers.
Typical Applications 1-11 Multiple Connections from a Single Site In some instances it is likely that you will need to connect to Novell servers on one site, IP hosts on the same remote site or possibly a different remote site and a connection into the Internet. This can all be achieved by running the Quick Configuration several times until all the desired types of connection have been configured.
1-12 CHAPTER 1: BRIDGE/ROUTER MODULE Pack Contents Checklist Before you install your Bridge/Router Module, check the contents of the box against the pack contents checklist below. If any of the items have been damaged in transit or are missing, then contact the 3Com reseller from whom the equipment was purchased. ■ 1 x Bridge/Router Module front card. ■ 1 x Bridge/Router Module back card. ■ 1 x AccessBuilder 7000 Bridge/Router Module User Guide (This manual).
Pre-installation Requirements 1-13 Pre-installation Requirements Before you install the Bridge/Router Module into the AccessBuilder 7000 Access Concentrator chassis, check that the following requirements have been met: ■ The AccessBuilder 7000 Access Concentrator must already be fitted with its power supply module(s) and the Management Controller Module if required.
1-14 CHAPTER 1: BRIDGE/ROUTER MODULE
2 INSTALLATION AND OPERATION Overview This chapter describes how to install the AccessBuilder 7000 BRI Bridge/Router module and/or the AccessBuilder 7000 PRI Bridge/Router module into the AccessBuilder 7000 Access Concentrator chassis and how to read the LEDs on the module’s front panel. Ensure you read the safety information at the front of this guide before commencing installation of the AccessBuilder 7000 Bridge/Router Module.
2-2 CHAPTER 2: INSTALLATION AND OPERATION Installing The Module Before installing the module, read the Safety Information at the front of this guide. BRI Bridge/Router Module The AccessBuilder 7000 BRI Bridge/Router Module is a two slot wide module and can be installed in any two adjacent free slots. The single width rear card is installed in the right-most slot of the two slots, when looking at the rear of the AccessBuilder 7000.
Installing The Module 2-3 No connecting cables are supplied with the Bridge/Router Module as standard. Check that you have suitable cables for any connections you want to make to any of the following ports: ■ ISDN port (BRI Bridge/Router Module only). ■ LAN port. ■ WAN port See Appendix A for cable pin-outs and types. CAUTION: At all times, take care not to touch any of the connectors or components on the cards to avoid damage by static electricity. Handle the cards by the handles or by their edges.
2-4 CHAPTER 2: INSTALLATION AND OPERATION Installing the Rear Card Figure 2-1 Installing The Rear Card 1 Locate the rear slot equivalent to the front slot into which you will install the front card. 2 Remove the metal blanking plate at the rear of the chassis and retain the screws. Retain the blanking plate. If you remove the module, the blanking plate must be refitted to the chassis to aid the circulation of cooling air and to prevent dust and debris entering the unit.
Installing The Module 2-5 Installing the Front Card Figure 2-2 Example Of Installing A Front Card 1 Locate the front slot in the AccessBuilder 7000 chassis equivalent to the rear slot in which you have already installed the rear card. 2 Insert the front card into the slot ensuring that it is centered along the guide rails. 3 Use the module’s handles to push the card gently but firmly home into the chassis and lock it into place. 4 Close and lock the chassis door.
2-6 CHAPTER 2: INSTALLATION AND OPERATION Connecting the Cables The ports on the rear panel are described below in order from top to bottom of the rear card. If you are using the PRI Bridge/Router Module, you do not connect to ISDN using the ISDN ports on the rear card. The ISDN calls are routed along the chassis’ backplane to the PRI Interface Module. See the AccessBuilder 7000 PRI Interface Module User Guide for more information.
Installing The Module 2-7 You also need a proprietary communications software package such as Windows ‘Terminal’ to communicate with the module’s management system. See the AccessBuilder ISDN Access Router Software Reference for more information about managing the module. WAN Ports (8 & 9) These ports are used to provide connection to a WAN over a private leased line. The port terminates with a SCSI connector. This port supports any of the CCITT data transmission standards; X.21/V.11 V.24/V.
2-8 CHAPTER 2: INSTALLATION AND OPERATION Front Panel LEDs This section describes the Bridge/Router Module’s LEDs. The LEDs are slightly different for the BRI Bridge/Router Module and the PRI Bridge/Router Module. Most of the LEDs can only be seen when the front door of the chassis is open. When the door is closed, only the PWR, ALARM, ALERT and TEST LEDs can be seen. These LEDs show the status of the whole module. BRI Bridge/Router CHANNEL 1 to 6 Channels 1 and 2 show the status of the WAN1 and WAN2.
Front Panel LEDs 2-9 PRI Bridge/Router CHAN 1 and 2 Channels 1 and 2 show the status of the two WAN ports, WAN1 and WAN2. When lit, the LED shows that WAN port is configured and up. When flashing, it shows that WAN port is configured and down. ISDN When lit shows that one or more ISDN channels are in use. PRI FOUND Indicates that a PRI Interface Module has been identified in the chassis. SRC MASTER When lit shows that this module is the SRC master.
2-10 CHAPTER 2: INSTALLATION AND OPERATION Monitoring ISDN Line Usage After you have first configured the module for use with ISDN, it is important to monitor ISDN line usage to ensure that the unit is working in the way you expect. Check the ISDN and CHANNEL LEDs to ensure that unexpected calls are not being made or that connections are not remaining open when you expect them to have closed.
Setting Up a WAN Link 2-11 Setting Up a WAN Link If you are using the Bridge/Router Module to connect to a remote site over a leased line link, the initial setup is very simple. 1 Before you power on the unit, connect an appropriate WAN cable to the WAN ports on the rear of the unit. If you have already powered on the unit, switch it off and connect the cable. For information about suitable cables, see Appendix A. 2 Power on the unit and connect to the management system.
2-12 CHAPTER 2: INSTALLATION AND OPERATION d If you are routing, edit the Port IP address to set it to UNNUMBERED or to a valid IP address for the WAN link. See the AccessBuilder ISDN Access Router Software Reference guide for more information about using numbered and unnumbered links. If you are bridging, leave this field at the default setting. e If necessary, change any of the other parameters to suit your WAN link. In most cases the defaults can be used.
3 TROUBLESHOOTING Troubleshooting Guide In this section we discuss the basic problems that can occur when using your Bridge/Router Module. If a problem continues to occur, contact your supplier for assistance. Management Problems Can not access the Bridge/Router Module’s Management System Ensure that the terminal is VT100 specification compliant. Ensure that the communication setting are:- 9600 bits/s, 8 data bits, 1 stop bit, no parity with flow control set up to None or Optional.
3- 2 CHAPTER 3: TROUBLESHOOTING POWER LED Does Not Light Make sure that the front and rear cards are pushed fully home, and that the rack enclosure is powered ON. ISDN/CHANNEL LEDs Do Not Light Ensure that the Bridge/Router Module is powered on and that the POWER LED is lit. Check the connections at both ends of the ISDN cable. Check that the ISDN port is configured using the CO PO command. See the AccessBuilder ISDN Access Router Software Reference guide for more information about this command.
A BRIDGE/ROUTER SPECIFICATION AND CABLE PIN ASSIGNMENTS Specifications LAN Connector Interfaces ■ 10Base2 via a coaxial connector. ■ 10BaseT via an RJ45 connector socket for UTP. ■ 10Base5 via an AUI connector. Only one LAN interface can be used at any one time. WAN Connector Interface Mini-SCSI female connector, configured to support one of: ■ V.11 (X.21) for speeds up to 2.048 Mbps. ■ V.28 (V.24/RS232) for speeds up to 19.2 Kbps. ■ V.35/V.36 for speeds up to 2.048 Mbps.
A-2 APPENDIX A: BRIDGE/ROUTER SPECIFICATION AND CABLE PIN ASSIGNMENTS Management Connector Interface 9-way D-type connector to RJ11 for use with a VT100 compliant terminal or PC. ■ Local and remote terminal management. ■ TCP/IP Telnet menu driven management interface for remote management. ■ Software upgrades, enhancements and configurations downloadable from network attached terminal or PC. ■ SNMP MIB II support with private extensions for management of unique features.
Approvals A-3 Approvals This product complies with the electro-magnetic compatibility (EMC) requirements of EN 55022 Class A and EN 50082 (susceptibility) as long as the following prerequisites are observed: ■ The WAN port must be attached to a screened digital cable. ■ The ISDN cable must be used in conjunction with a three turn ferrite. The product carries the CE certification mark to indicate conformance with the following EU directives: ■ LVD (Low Voltage Directive (Safety) 73/23/EEC.
A-4 APPENDIX A: BRIDGE/ROUTER SPECIFICATION AND CABLE PIN ASSIGNMENTS LAN Port Pin Assignments AUI Cable The AUI port terminates with a 15-pin female connector which must be connected to a transceiver on a LAN using an AUI (drop) cable. This cable is not supplied with the unit. The following signal characteristics must be observed when purchasing or fabricating a suitable cable.
ISDN Port Cable Pin Assignments A-5 10BaseT Connecting Cable The 10BaseT port terminates with an RJ45 connector which can be connected to the 10BaseT port on another device. The table below shows the pin-outs for a straight through cable. ISDN Port Cable Pin Assignments Basic Rate ISDN connections use the same cable as 10BaseT connections. For information on Primary Rate ISDN connections, see the AccessBuilder 7000 PRI Interface Module User Guide.
A-6 APPENDIX A: BRIDGE/ROUTER SPECIFICATION AND CABLE PIN ASSIGNMENTS WAN Port Cable Pin Assignments X.21/V.11 The WAN port terminates with a 26-way miniature SCSI connector. The port can be configured to support V.11 signalling characteristics at data transfer rates up to 2.048 Mbps. The WAN port connecting cable is not supplied with the module. The following signalling characteristics should be observed when purchasing or fabricating a suitable cable.
WAN Port Cable Pin Assignments A-7 V.24/V.28 The WAN port terminates with a 26-way miniature SCSI connector. The port can be configured to support V.24 or V.28 signalling characteristics at data transfer rates up to 19.2 Kbps. The WAN port connecting cable is not supplied with the module. The following signalling characteristics should be observed when purchasing or fabricating a suitable cable.
A-8 APPENDIX A: BRIDGE/ROUTER SPECIFICATION AND CABLE PIN ASSIGNMENTS V.35/V.36 The WAN port terminates with a 26-way miniature SCSI connector. The port can be configured to support V.36 signalling characteristics at data transfer rates up to 48 Kbps. The WAN port connecting cable is not supplied with the module. The following signalling characteristics should be observed when purchasing or fabricating a suitable cable.
Management Port Cable Pin Assignments A-9 Management Port Cable Pin Assignments The manager port cable terminates with an RJ11 connector at one end and a 9-pin male/female D-type connector. The pin-out table below show the pin outs for this cable.
A-10 APPENDIX A: BRIDGE/ROUTER SPECIFICATION AND CABLE PIN ASSIGNMENTS
B TECHNICAL SUPPORT 3Com provides easy access to technical support information through the variety of services described in this appendix. On-line Technical Services 3Com offers worldwide product support seven days a week, 24 hours a day, through the following on-line systems: ■ 3Com Bulletin Board Service (3ComBBS) ■ World Wide Web site 3Com Bulletin Board Service 3ComBBS contains patches, software, and drivers for all 3Com products, as well as technical articles.
B-2 APPENDIX B: TECHNICAL SUPPORT Call the telephone number nearest you: Country Data Rate Telephone Number Australia up to 14400 bps (61) (2) 9955 2073 France up to 14400 bps (33) (1) 69 86 69 54 Germany up to 9600 bps (49) (89) 627 32 188 or (49) (89) 627 32 189 Hong Kong up to 14400 bps (852) 2537 5608 Italy (fee required) up to 14400 bps (39) (2) 273 00680 Japan up to 14400 bps (81) (3) 3345 7266 Singapore up to 14400 bps (65) 534 5693 Taiwan up to 14400 bps (886) (2) 377 583
Support from Your Network Supplier B-3 Support from Your Network Supplier If additional assistance is required, contact your network supplier. Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services, including network planning, installation, hardware maintenance, application training, and support services.
B-4 APPENDIX B: TECHNICAL SUPPORT Support from 3Com If you are unable to receive support from your network supplier, technical support contracts are available from 3Com. In the U.S. and Canada, call (800) 876-3266 for customer service. If you are outside the U.S.
Returning Products for Repair B-5 Returning Products for Repair A product sent directly to 3Com for repair must first be assigned a Return Materials Authorization (RMA) number. A product sent to 3Com without an RMA number will be returned to the sender unopened, at the sender’s expense. To obtain an RMA number, call or fax: Country Telephone Number Fax Number U.S. and Canada (800) 876 3266, option 2 (408) 764 7120 Europe 31 30 60 29900, option 5 (44) (1442) 275822 Outside Europe, U.S.
B-6 APPENDIX B: TECHNICAL SUPPORT
INDEX Numerics 3Com Bulletin Board Service (3ComBBS) B-1 3Com sales offices B-4 A ALARM LED 2-8, 2-9 ALERT LED 2-8, 2-9 I installation 2-2 front card 2-5 prerequisites 1-13 rear card 2-4 ISDN connection 1-13 line usage 2-10 ports 2-6 ISDN LED 2-9 B Bridge/Router configuration 2-10 features 1-4 overview 1-1 typical applications 1-5 bulletin board service B-1 L LAN ACTIVITY LED 2-8 LAN LED 2-9 LAN ports 2-6 LEDs BRI Bridge/Router 2-8 PRI Bridge/Router 2-9 C CHAN LEDs 2-9 CHANNEL LEDs 2-8 configuration 2
2 INDEX P pack contents 1-12 ports 2-6 pre-installation requirements 1-13 PRI FOUND LED 2-9 push buttons 2-8, 2-9 PWR LED 2-8, 2-9 R rear card installation 2-4 resetting the module 2-8, 2-9 returning products for repair B-5 RUN LED 2-8, 2-9 S SRC MASTER LED 2-9 SRC SLAVE LED 2-9 T technical support B-1 TEST LED 2-9 troubleshooting 3-1 typical applications 1-5 W WAN configuration 2-11 connection 2-7 ports 2-7
LIMITED WARRANTY HARDWARE: 3Com warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following lengths of time from the date of purchase from 3Com or its Authorized Reseller: Internetworking products Network adapters Ethernet stackable hubs and unmanaged Ethernet fixed port repeaters One year Lifetime Lifetime* (One year if not registered) *Power supply and fans in these stackable hubs and unmanaged repeaters One year Other hardware prod
3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER'S OR ANY THIRD PERSON'S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO REPAIR OR MODIFY, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OR OTHER HAZARD. LIMITATION OF LIABILITY.
FCC CLASS A VERIFICATION STATEMENT This equipment has been tested with a class A computing device and has been found to comply with part 15 of FCC Rules. Operation in a residential area may cause unacceptable interference to radio and TV receptions requiring the operator to take whatever steps are necessary to correct the interference.
