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®
CoreBuilder™ 5000 Network Router Module Installation Guide for Token Ring
http://www.3com.com/
Document Number 17-00670-3Published May 1997
3Com Corporation5400 Bayfront Plaza Santa Clara, California 95052-8145
Copyright © 3Com Corporation, 1997. 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 Corporation. Portions of this document are reproduced in whole or part with permission from third parties.
3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
3Com Corporation provides this documentation without warranty of any kind, either implied or expressed, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. 3Com may make improvements or changes in the products or programs described in this documentation at any time.
UNITED STATES GOVERNMENT LEGENDS:If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following restricted rights:
For units of the Department of Defense:Restricted Rights Legend: Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) for Restricted Rights in Technical Data and Computer Software Clause at 48 C.F.R. 52.227-7013.
For civilian agencies:Restricted Rights Legend: Use, reproduction, or disclosure is subject to restrictions set forth in subparagraph (a) through (d) of the Commercial Computer Software – Restricted Rights Clause at 48 C.F.R. 52.227-19 and the limitations set forth in the 3Com Corporation standard commercial agreement for the software. Unpublished rights reserved under the copyright laws of the United States.
If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hardcopy documentation, or on the removable media in a directory file named LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be sent to you.
Federal Communications Commission Notice
This equipment was 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 environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case you must correct the interference at your own expense.
Canadian Emissions Requirements
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
EMC Directive Compliance
This equipment was tested and conforms to the Council Directive 89/336/EEC for electromagnetic compatibility. Conformity with this directive is based upon compliance with the following harmonized standards:
EN 55022 – Limits and Methods of Measurement of Radio Interference
EN 50082-1 – Electromagnetic Compatibility Generic Immunity Standard: Residential, Commercial, and Light Industry
Warning: This is a Class A product. In a domestic environment, this product may cause radio interference, in which case you may be required to take adequate measures.
Compliance with this directive depends on the use of shielded cables.
Low Voltage Directive Compliance
This equipment was tested and conforms to the Council Directive 72/23/EEC for safety of electrical equipment. Conformity with this directive is based upon compliance with the following harmonized standard:
EN 60950 – Safety of Information Technology Equipment
ii
VCCI Class 1 Compliance
This equipment is in the 1st Class category (information equipment to be used in commercial or industrial areas) and conforms to the standards set by the Voluntary Control Council for Interference by Information Technology Equipment aimed at preventing radio interference in commercial or industrial areas.
Consequently, when the equipment is used in a residential area or in an adjacent area, radio interference may be caused to radio and TV receivers, and so on.
Read the instructions for correct handling.
Fiber Cable Classification Notice
Use this equipment only with fiber cable classified by Underwriters Laboratories as to fire and smoke characteristics in accordance with Section 770-2(b) and Section 725-2(b) of the National Electrical Code.
UK General Approval Statement
The CoreBuilder 5000 Integrated System Hub and ONline System Concentrator are manufactured to the International Safety Standard EN 60950 and are approved in the U.K. under the General Approval Number NS/G/12345/J/100003 for indirect connection to the public telecommunication network.
Trademarks
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.
3Com, Boundary Routing, CardFacts, EtherLink, LANplex, LANsentry, LinkBuilder, NETBuilder, NETBuilder II, NetFacts, Parallel Tasking, SmartAgent, TokenDisk, TokenLink, Transcend, TriChannel, and ViewBuilder are registered trademarks of 3Com Corporation.
3TECH, CELLplex, CoreBuilder, EtherDisk, EtherLink II, FDDILink, MultiProbe, NetProbe, and ONline are trademarks of 3Com Corporation.
3ComFacts is a service mark of 3Com Corporation.
The 3Com Multichannel Architecture Communications System is registered under U.S. Patent Number 5,301,303.
AT&T is a registered trademark of American Telephone and Telegraph Company.
Banyan and VINES are registered trademarks of Banyan Systems Inc.
CompuServe is a registered trademark of CompuServe, Inc.
DEC, DECnet, DELNI, POLYCENTER, VAX, VT100, VT220, and the Digital logo are trademarks of Digital Equipment Corporation.
Hayes is a registered trademark of Hayes Microcomputer Products.
OpenView is a registered trademark of Hewlett-Packard Company.
Intel is a registered trademark of Intel Corporation.
AIX, IBM, and NetView are registered trademarks of International Business Machines Corporation.
Microsoft, MS-DOS, Windows, Windows 95, and Windows NT are registered trademarks of Microsoft Corporation.
V30 is a trademark of NEC Corporation.
NetWare and Novell are registered trademarks of Novell, Incorporated.IPX is a trademark of Novell, Incorporated.
OSF and OSF/Motif are registered trademarks of Open Software Foundation, Inc.
ONC, OpenWindows, Solaris, Solstice, Sun, Sun Microsystems, SunNet Manager, and SunOS are trademarks of Sun Microsystems, Inc.
iii
SPARCstation is a trademark licensed exclusively to Sun Microsystems Inc.
OPEN LOOK is a registered trademark of Unix System Laboratories, Inc.
UNIX is a registered trademark of X/Open Company, Ltd. in the United States and other countries.
Other brand and product names may be registered trademarks or trademarks of their respective holders.
iv
CONTENTS
ABOUT THIS GUIDE
Introduction 1Audience 1How to Use This Guide 2Conventions 2Related Documents 4
3Com Documents 4Reference Documents 4
1 INTRODUCTION
Router Module Overview 1-1Router Functions 1-1Module Architecture 1-2Router Models 1-3Typical Applications 1-4
Router Module Features 1-6FDDI Support 1-6WAN Support 1-6Protocol Translation 1-7Scalable Protocol Support 1-7WAN Optimization 1-9ATM Migration 1-9Management Support 1-9Distributed, Scalable Reliability 1-10Hot Swap Capability 1-10
2 INSTALLING THE MODULE
Precautionary Procedures 2-1Quick Installation 2-2Unpacking Procedures 2-2Preparing to Install the Router Module 2-4
Restoring Base Board Positions 2-4Verifying CPU Board Positions 2-5
Installing the Router Module 2-5Making NIM Connections 2-7
Making FDDI NIM Connections 2-7Connecting the Multi-Mode, Dual Attachment Station NIM 2-7Connecting the Multi-Mode, Single Attachment Station NIM 2-8Connecting the Multi-Mode Optical Bypass Switch 2-9Connecting the Single Mode, Dual Attachment Station NIM 2-10
Making Quad Serial NIM Connections 2-11Making ATM NIM Connections 2-12
ATM Connector Types 2-12ATM Distance Limitations 2-12
3 CONFIGURING THE MODULE
Configuration Overview 3-1Attaching a Management Terminal 3-2
Connecting to the Console Port 3-2Connecting to the Auxiliary Port 3-3
Configuring the Cisco NIM Connections 3-3Configuring Cisco Parameters 3-3
Setting General Interface Parameters 3-4Setting Token Ring Speed 3-4
Configuring 3Com Parameters 3-5
4 MONITORING OPERATION
Monitoring Router Module LEDs 4-1Common Front Panel LEDs 4-2FDDI NIM LEDs 4-6Quad Serial NIM LEDs 4-7ATM NIM LEDs 4-9
vi
Displaying the Router Module Configuration 4-10Using the SHOW MODULE Command 4-11Using the SHOW MODULE VERBOSE Command 4-11Using the SHOW PORT Command 4-11Using the SHOW PORT VERBOSE Command 4-12Interpreting the SHOW PORT Status Field 4-13
5 TROUBLESHOOTING
Troubleshooting Startup Problems 5-1Troubleshooting Network Connection Problems 5-2Troubleshooting WAN Connection Problems 5-2Correcting Operating Malfunctions 5-3Recovering a Lost Password 5-4
A PRODUCT SPECIFICATIONS
General Specifications A-2Electrical Specifications A-3Environmental Specifications A-3Mechanical Specifications A-3
B CABLING SPECIFICATIONS
Console and Auxiliary Port Cables B-1Console Port Pinouts B-2Auxiliary Port Pinouts B-2
Quad Serial NIM Cables B-3EIA-530 DTE Synchronous Serial Cable Pinouts B-4EIA-232 DTE and DCE Serial Cable Assembly and Pinouts (DB-25) B-5EIA-449 DTE and DCE Serial Cable Assembly and Pinouts (DB-37) B-8V.35 DTE and DCE Serial CableAssembly and Pinouts B-10X.21 DTE and DCE Serial Cable Pinouts (DB-15) B-13
vii
viii
C VIRTUAL CONFIGURATION REGISTER
VCR Tasks C-1VCR Bit Definitions C-2
Boot Field C-2Setting Boot Field Values C-3Default Boot Filenames C-3
Break Function C-4Internet Protocol Broadcast Address C-5Engine Management Terminal Baud Rate C-5Bootload Failure Response C-5NVRAM Disable C-6
Changing VCR Settings C-6Enabling Booting From Flash Memory C-7
D FDDI PRECAUTIONS
FDDI Laser Safety Information D-1Processing D-2
E TECHNICAL SUPPORT
Online Technical Services E-1World Wide Web Site E-23Com Bulletin Board Service E-2
Access by Analog Modem E-2Access by Digital Modem E-2
3ComFacts Automated Fax Service E-33ComForum on CompuServe Online Service E-3
Support From Your Network Supplier E-4Support From 3Com Corporation E-5Returning Products for Repair E-6Accessing the 3Com MIB E-6Contacting 3Com Technical Publications E-7
INDEX
3COM CORPORATION LIMITED WARRANTY
FIGURES
1-1 CoreBuilder 5000 Network Router Module 1-21-2 Quad Serial Network Router Module Typical Application 1-41-3 ATM OC3 Network Router Module Typical Application 1-41-4 Dual Attachment FDDI Network Router Module Typical Application 1-52-1 Locating the Spacing Clips 2-32-2 Base Board DIP Switch and Jumper Plug Positions 2-42-3 CPU Board Jumper Plug Positions 2-52-4 CoreBuilder 5000 Network Router Module in a CoreBuilder 5000
Integrated System Hub 2-62-5 Multi-Mode FDDI Network Interface Connector, MIC Type 2-72-6 Making Connections to the FDDI MM, DAS NIM 2-82-7 Making Connections to the FDDI MM, SAS NIM 2-82-8 Connecting the Multi-Mode Optical Bypass Switch 2-92-9 Making Connections to the FDDI SM, DAS NIM 2-10
2-10 Making Connections to the Quad Serial NIM 2-112-11 Making Connections to the ATM NIMs 2-12
4-1 Common Front Panel LEDs 4-24-2 FDDI NIM LEDs 4-64-3 Quad Serial NIM LEDs 4-74-4 ATM NIM LEDs 4-94-5 SHOW MODULE Command Information 4-114-6 SHOW MODULE VERBOSE Command Information 4-114-7 SHOW PORT Command Information 4-124-8 SHOW PORT VERBOSE Command Information 4-12B-1 EIA-530 Cable Assembly B-4B-2 EIA-232 Serial Cable Assembly B-5B-3 EIA-449 Serial Cable Assembly B-8B-4 V.35 Serial Cable Assembly B-10B-5 X.21 Cable Assembly B-13D-1 Required Class 1 Laser Product Label D-2
ix
TABLES
1 How to Use This Guide 22 Graphic Conventions 23 Text Conventions 3
1-1 Software Feature Sets 1-82-1 Quick Installation Steps 2-22-2 ATM Distance Limitations 2-134-1 Front Panel LED Definitions 4-34-2 Quad Serial NIM LED Definitions 4-84-3 ATM NIM LED Definitions 4-104-4 SHOW PORT Status Field Definitions 4-135-1 Troubleshooting Malfunctions 5-3A-1 General Router Module Specifications A-2A-2 Electrical Router Module Specifications A-3A-3 Environmental Router Module Specifications A-3A-4 Mechanical Router Module Specifications A-3B-1 Console Port Pinout Specification B-2B-2 Auxiliary Port Pinout Specification B-2B-3 EIA-530 Cable Pinout Specifications B-4B-4 EIA-232 DTE Cable Pinouts (DB-60 to DB-25) B-6B-5 EIA-232 DCE Cable Pinouts (DB-60 to DB-25) B-7B-6 EIA-449 DTE Cable Pinouts (DB-60 to DB-37) B-8B-7 EIA-449 DCE Cable Pinouts (DB-60 to DB-37) B-9B-8 V.35 DTE Cable Pinouts (DB-60 to Winchester-Type 34-Pin) B-11B-9 V.35 DCE Cable Pinouts (DB-60 to Winchester-Type 34-Pin) B-12
B-10 X.21 DTE Cable Pinouts (DB-60 to DB-15) B-13B-11 X.21 DCE Cable Pinouts (DB-60 to DB-15) B-14
C-1 Virtual Configuration Register Bit Values C-2C-2 Boot Field Values (Configuration Register Bits 00 to 03) C-2C-3 Default Boot Filenames C-4C-4 Broadcast Address Destination Settings C-5C-5 Engine Management Terminal Baud Rate Settings C-5
xi
ABOUT THIS GUIDE
Introduction This guide describes how to install, configure, and monitor the 3Com CoreBuilder™ 5000 Network Router Module.
If the information in the release notes shipped with your product differs from the information in this guide, follow the release note instructions.
Audience This guide is intended for the following people at your site:
■ Network manager or administrator
■ Trained hardware installer or service personnel
2 ABOUT THIS GUIDE
How to Use This Guide
Table 1 shows the location of specific information.
Conventions Table 2 and Table 3 list conventions used throughout this guide.
Table 1 How to Use This Guide
If you are looking for: Turn to:
General information about the router module Chapter 1
Description of the router module architecture
Typical applications of the router module
Features of the router module
Procedures for unpacking and preparing to install the router module
Chapter 2
Procedures for installing the router module
Procedures for making NIM connections
An overview of the router module configuration process Chapter 3
Procedures for attaching a management terminal
Procedures for configuring the Cisco NIM connections
Procedures for configuring Cisco parameters
Procedures for configuring 3Com parameters
Information for monitoring router module LEDs Chapter 4
Procedures for displaying the router module configuration
Information on troubleshooting the router module Chapter 5
Procedures for recovering a lost password
Module specifications, cable requirements, and other reference information
Appendices A-E
Table 2 Graphic Conventions
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.
Conventions 3
Table 3 Text Conventions
Convention Description
Enter vs. Type When the word enter is used in this guide, it means type something, then press the Return or Enter key. Do not press the Return or Enter key when instructed to type.
Syntax vs. Command Syntax indicates that the general form of a command syntax is provided. You must evaluate the syntax and supply the appropriate port, path, value, address, or string. For example:
Enable RIPIP by using the following syntax:
SETDefault !<port> -RIPIP CONTrol = Listen
In this example, you must supply a port number for !<port>.
Command indicates that all variables in the command have been supplied and you can enter the command as shown in text. For example:
Remove the IP address by entering the following command:
SETDefault !0 -IP NETaddr = 0.0.0.0
For consistency and clarity, the full-form syntax (upper- and lowercase letters) is provided. However, you can enter the abbreviated form of a command by typing only the uppercase portion and supplying the appropriate port, path, address, value, and so on. You can enter the command in either upper- or lowercase letters at the prompt.
Text represented as screen display
This typeface is used to represent displays that appear on your terminal screen. For example:
NetLogin:
Text represented as commands
This typeface is used to represent commands that you enter. For example:
SETDefault !0 -IP NETaddr = 0.0.0.0
Keys Specific keys are referred to in the text as Return key or Escape key, or they may be shown as [Return] or [Esc].
If two or more keys are to be pressed simultaneously, the keys are linked with a plus sign (+). For example:
Press [Ctrl]+[Alt]+[Del].
Italics Italics are used to denote new terms or emphasis.
4 ABOUT THIS GUIDE
Related Documents This section provides information on supporting documentation, including:
■ 3Com Documents
■ Reference Documents
3Com Documents The following documents provide additional information on 3Com products:
CoreBuilder 5000 Integrated System Hub Installation and Operation Guide – Provides information on the installation, operation, and configuration of the CoreBuilder 5000 Integrated System Hub. This guide also describes the principal features of the CoreBuilder 5000 Fault-Tolerant Controller Module.
CoreBuilder 5000 Distributed Management Module User Guide – Provides information on the CoreBuilder 5000 Distributed Management Module’s operation, installation, and configuration. This guide also describes the software commands associated with the Distributed Management Module.
CoreBuilder 5000 Distributed Management Module Commands Guide – Describes each management command by providing details on command format and use.
For a complete list of 3Com documents, contact your 3Com representative.
Reference Documents The following documents supply related background information:
Case, J., Fedor, M., Scoffstall, M., and J. Davin, The Simple Network Management Protocol, RFC 1157, University of Tennessee at Knoxville, Performance Systems International and the MIT Laboratory for Computer Science, May 1990.
Rose, M., and K. McCloghrie, Structure and Identification of Management Information for TCP/IP-based Internets, RFC 1155, Performance Systems International and Hughes LAN Systems, May 1990.
1
INTRODUCTIONThis chapter contains the following topics:
■ Router Module Overview
■ Router Module Features
Router Module Overview
The 3Com CoreBuilder™ 5000 Network Router Module is a multiprotocol backplane router that operates in a 3Com® CoreBuilder 5000 Integrated System.
This section describes the following topics:
■ Router Functions
■ Module Architecture
■ Router Models
■ Typical Applications
Router Functions The CoreBuilder 5000 Network Router Module (referred to in this guide as the router module) is designed to:
■ Provide the physical network interface to connect local- and wide-area networks in multiprotocol environments
■ Run standard Cisco Systems® Internetworking Operating System® (IOS) router software
■ Provide high-performance, fault-tolerant connectivity to backbone networks for Token Ring local area networks (LANs) within the CoreBuilder 5000 Integrated System
■ Deliver standards-based translation bridging and multiprotocol routing capability
1-2 CHAPTER 1: INTRODUCTION
■ Internetwork Asynchronous Transfer Mode (ATM), Fiber Data Distributed Interface (FDDI), or wide area network (WAN) connections with four Token Ring backplane networks
■ Support the CoreBuilder 5000 Integrated System backplane for connectivity to 4 of 10 CoreBuilder 5000 Token Ring backplane networks
■ Act as the Simple Network Management Protocol (SNMP) agent for in-band or out-of-band management by any SNMP-compliant network management application or the 3Com Transcend® Enterprise Manager
Module Architecture The router module (Figure 1-1) occupies three slots in the CoreBuilder 5000 Integrated System.
Figure 1-1 CoreBuilder 5000 Network Router Module
Network Interface Module(optional NIM 1)
Faceplate
CPU board
Base board (integrated NIMs 2 and 3)
Router Module Overview 1-3
The base router module consists of a CoreBuilder 5000 14-inch base board with an attached CPU board. Both the base board and the CPU board plug directly into the CoreBuilder 5000 backplane.
The base router module provides four Token Ring backplane connections (complex port connections), any one of which you can connect to any one of 10 CoreBuilder 5000 backplane networks. The Token Ring ports are equivalent to Cisco Systems IOS interface connections.
You can connect only one Token Ring backplane connection to any one CoreBuilder 5000 backplane network.
You can mount any one of multiple standard Cisco Systems Network Interface Module (NIM) types on the base board to provide additional routing connections (Cisco Systems NPM connections) for various protocol types (see Figure 1-1). Each NIM type requires a unique 3Com faceplate.
Router Models The router module is available in the following configurations:
Base – Includes 4 Token Ring backplane connections.
FDDI MM, DAS – Multi-mode, dual attachment station/4 Token Ring backplane connections.
FDDI MM, SAS – Multi-mode, single attachment station/4 Token Ring backplane connections.
FDDI SM, DAS – Single mode, dual attachment station/4 Token Ring backplane connections.
Quad Serial – 4 synchronous serial/4 Token Ring backplane connections.
ATM OC3, MM – Multi-mode fiber optic cable (OC3)/4 Token Ring backplane connections
ATM OC3, SM – Single mode fiber, optic cable (OC3)/4 Token Ring backplane connections
1-4 CHAPTER 1: INTRODUCTION
Typical Applications Figure 1-2, Figure 1-3, and Figure 1-4 show typical applications of the Quad Serial, ATM OC3, and FDDI router modules.
Figure 1-2 Quad Serial Network Router Module Typical Application
Figure 1-3 ATM OC3 Network Router Module Typical Application
3rd floor
4th floor
1st floor
2nd floor
3Com Edge Router Module
Remote site B
Remote site C
Remote site D
Remote site E
3Com Edge Router Module
3Com Edge Router Module
3Com Edge Router Module
Dedicated or dial-up synchronous serial connections
Local site A
CoreBuilder 5000 Network Router Module
3rd floor
4th floor
1st floor
2nd floor
ATM OC-3 MM
ATM Service
Local site A
CoreBuilder 5000 Network Router Module
ATM OC-3 MM
Token Ring
Ethernet
CoreBuilder 5000 Network Router Module
CoreBuilder 5000 Network Router Module
Router Module Overview 1-5
Figure 1-4 Dual Attachment FDDI Network Router Module Typical Application
FDDI campus backbonedual-attachment, multi-mode or single mode
3rd floor
4th floor
1st floor
2nd floor
Building B
Building A
Building C
To other sites
To other sites
CoreBuilder 5000 Network Router Module
CoreBuilder 5000 Network Router Module
CoreBuilder 5000 Network Router Module
1-6 CHAPTER 1: INTRODUCTION
Router Module Features
This section describes the following features of the router module:
■ FDDI Support
■ WAN Support
■ Protocol Translation
■ Scalable Protocol Support
■ WAN Optimization
■ ATM Migration
■ Management Support
■ Distributed, Scalable Reliability
■ Hot Swap Capability
FDDI Support The router module provides support for three FDDI configurations on the following two FDDI interfaces:
Multi-Mode Fiber – Can support distances of up to 2 km for both Class A Dual Attachment Stations (DAS) and Class B Single Attachment Stations (SAS).
Single Mode Fiber – Can support distances of up to 10 km for Class A Dual Attachment Stations (DAS).
The FDDI interfaces also include a connector for attachment to an external optical bypass unit. If the router module stops operating, the optical bypass unit ensures that the FDDI signal bypasses that router. The FDDI ring and other stations remain operational.
WAN Support The router module configured with a Quad Serial NIM provides four synchronous serial ports to support backbone or redundant network connections over the wide area network (WAN). The serial ports support the following connection protocols:
■ V.35
■ EIA-232
■ EIA-449
■ RS-422
■ X.21
Router Module Features 1-7
Each serial port is capable of providing T1/E1 rate connectivity. Each port operates in full duplex mode at speeds from 1,200 bits per second (bps) to 2,048 Megabits per second (Mbps).
You can configure the synchronous serial ports to support IBM® Synchronous Data Link Control (SDLC) traffic using synchronous pass through or Data Link Switching (DLSw).
Protocol Translation The router module protocol translation function allows you to extend the life of your existing network devices. The router module allows networks operating in dissimilar protocol environments to communicate while managing up to 180 simultaneous sessions.
The router module supports the following bidirectional translations:
■ X.25 to TCP
■ X.25 to Local Area Transport (LAT)
■ X.25 to XRemote devices
■ LAT to TCP
■ LAT to TN3270 devices
Scalable ProtocolSupport
Each router module type allows you to select a specific level of protocol support to best match the needs of your application. Four Cisco IOS router software feature sets offer an increasing level of protocol support:
IP/IPX – The base feature set is used in applications requiring only IP/IPX protocols.
Desktop – Provides additional LAN support for use in applications with limited LAN protocol requirements.
Desktop plus IBM – Adds IBM support.
Enterprise – Adds top-level protocol support, including SNA (Synchronous Network Architecture) integration.
1-8 CHAPTER 1: INTRODUCTION
Table 1-1 details the specific protocol support offered in each feature set.
Table 1-1 Software Feature Sets
Feature
Category
Features Included in Each Feature Set
IP/IPX Desktop Desktop plus IBM Enterprise
LAN Support IP, Bridging, LAN Extension, Host Software, Novell® IPX™
IP, Bridging, LAN Extension, Host Software, Novell IPX, DECnet™ IV, Appletalk® Phase 1 and 2
IP, Bridging, LAN Extension, Host Software, Novell IPX, DECnet IV, AppleTalk Phase 1 and 2
IP, Bridging, LAN Extension, Host Software, Novell IPX, DECnet IV, AppleTalk Phase 1 and 2, DECnet V, XNS, Banyan® VINES®, OSI, Apollo® Domain
IBM Support SRB/RSRB, SRT, DLSW+, SNA & NETBIOS™ WAN optimization (with local acknowledgment, caching, and filtering), SDLC integration, SDLC-to-LAN conversion, SDLC Transport (STUN), Frame Relay SNA Support (RFC 1490)
SRB/RSRB, SRT, DLSW+, SNA & NETBIOS WAN optimization (with local acknowledgment, caching, and filtering), SDLC integration, SDLC-to-LAN conversion, SDLC Transport (STUN), Frame Relay SNA Support (RFC 1490)TG/COS, QLLC, DSPU Concentration
Protocol Translation
X.25-to-TCP, X.25-to-LAT, and X.25-to-XRemote; LAT-to-TCP and LAT-to-TN3279 (bidirectional)
IP Routing RIP, OSPF, PIM, NHRP
RIP, OSPF, PIM, NHRP, BGP, EGP, IGRP™
RIP, OSPF, PIM, NHRP, BGP, EGP, IGRP, Enhanced IGRP
RIP, OSPF, PIM, NHRP, BGP, EGP, IGRP, Enhanced IGRP, ES-IS, IS-IS
WAN Services HDLC, PPP, X.25, Frame Relay, ISDN, SMDS, IPXWAN 2.0, ATM
WAN Optimization
Header and link compression, X.25 packet payload compression, dial-on-demand, dial backup, bandwidth-on-demand, custom and priority queuing, access lists, access security, snapshot routing
Network Management
Autoinstall, SNMP, TELNET
Router Module Features 1-9
WAN Optimization The router module provides the following features to help limit network operating costs by optimizing WAN network connections:
Dial-On-Demand Routing – A more economical alternative to a second leased line as backup, a dial-on-demand backup dials up a second line automatically if the primary WAN link fails.
Data Compression – The router module provides four types of data compression for different network environments:
■ Link compression
■ X.25 packet payload compression
■ TCP/IP header compression
■ DEC™ LAT compression
ATM Migration The router module can be upgraded to support your migration to an ATM backbone (see Figure 1-3).
Add an ATM network backbone by replacing your original router module NIM, with one of two ATM NIM types:
■ OC-3, MM (Optical Carrier Type 3, Multi-Mode)
■ OC-3, SM (Optical Carrier Type 3, Single Mode)
Each ATM NIM type provides 155 Mbps backbone bandwidth.
ManagementSupport
The router module is shipped with a comprehensive Management Information Base (MIB) for using Simple Network Management Protocol (SNMP), the industry standard for network management.
You can monitor and control the router module from any SNMP-based management station, including the 3Com Transcend Enterprise Manager.
In addition, the router module is fully compatible with CiscoWorks® network management software from Cisco Systems.
TELNET capability provides for direct access in-band to the agent, and a console port on the module provides for out-of-band management capability.
1-10 CHAPTER 1: INTRODUCTION
Distributed, ScalableReliability
The router module operates in the CoreBuilder 5000 Integrated System which is structured to eliminate any single point of failure.
The CoreBuilder 5000 hub provides redundancy for power supplies, switched ports, controller modules, and the hub management module. Automatic switching to the redundant components ensures continuation of the specific function.
3Com fault-tolerant features are fully-scalable, allowing you to implement and alter the degree of fault-tolerance you need as your network grows.
Hot Swap Capability The router module features “hot swap” capability. You can swap the router module in or out of (install or remove from) a powered-on CoreBuilder 5000 hub.
2
INSTALLING THE MODULEThis chapter contains the following sections:
■ Precautionary Procedures
■ Quick Installation
■ Unpacking Procedures
■ Preparing to Install the Router Module
■ Installing the Router Module
■ Making NIM Connections
Precautionary Procedures
CAUTION: Electrostatic discharge (ESD) can damage static-sensitive devices on circuit boards.
Follow these precautions when you unpack or handle the router module:
■ Do not remove the board from its antistatic shielding bag until you are ready to inspect or install it.
■ Handle the board by the faceplate only.
Use proper grounding techniques when you install the module, including:
■ Using a footstrap and grounded static mat or wearing a grounded static discharge wrist strap.
■ Touching the rack or other ground source just before you handle the module.
2-2 CHAPTER 2: INSTALLING THE MODULE
Quick Installation Table 2-1 outlines the steps for quick installation of the CoreBuilder™ 5000 Network Router Module. If you are familiar with installing CoreBuilder 5000 modules, use this table as a checklist. Otherwise, refer to the remainder of this chapter and to Chapters 3 and 4 to complete the installation.
.
For information about potential problems, refer to the troubleshooting techniques described in Chapter 5, Troubleshooting.
Unpacking Procedures
To unpack the CoreBuilder 5000 Network Router Module:
1 Verify that the module is the model you ordered by checking the model number listed on the side of the shipping carton.
The product model number listed on the box contains the prefix “3C9.”
Table 2-1 Quick Installation Steps
Step Procedure Section Title/Page Number
1 Unpack the module. Unpacking Procedures on page 2-2
2 Prepare to install the module by verifying DIP switch and jumper plug positions.
Preparing to Install the Router Module on page 2-4
3 Install the module into three contiguous slots in the CoreBuilder 5000 Integrated System Hub.
Installing the Router Module on page 2-5
4 Connect the NIM cables. Making NIM Connections on page 2-7
5 Attach a terminal to the console or auxiliary ports.
Attaching a Management Terminal on page 3-2
6 Configure the NIM connections using Cisco IOS router configuration commands.
Configuring the Cisco NIM Connections on page 3-3
7 Configure the Cisco router interfaces using Cisco IOS router configuration commands.
Configuring Cisco Parameters on page 3-3
8 Configure the Token Ring backplane connections using DMM software.
Configuring 3Com Parameters on page 3-5
9 Monitor initial router module operation. Monitoring Router Module LEDs on page 4-1
Unpacking Procedures 2-3
2 Remove the module, in its antistatic bag, from the shipping carton.
3 Remove the module from the antistatic shielding bag and inspect it for damage.
CAUTION: Always handle the module by the faceplate, being careful not to touch the components. If the module appears to be damaged, return it to the antistatic shielding bag, repack it in the shipping carton, and contact your local supplier.
Keep the shipping carton and the antistatic shielding bag in which your module was shipped so that you can repackage the module for storage or shipment.
4 Remove the spacing clips from the router module (Figure 2-1).
Figure 2-1 Locating the Spacing Clips
Spacing clips
2-4 CHAPTER 2: INSTALLING THE MODULE
CAUTION: The spacing clips on the CoreBuilder 5000 Network Router Module are used only to protect the module during shipping. You must manually remove the spacing clips before you install the module. Failure to remove the spacing clips before installation could result in damage to the CoreBuilder 5000 Integrated System Hub.
Preparing to Install the Router Module
This section includes information to allow you to restore correct DIP switch and jumper plug positions on the base and CPU boards if the positions are inadvertently altered.
If you believe the default positions have been altered, refer to the following sections:
■ Restoring Base Board Positions
■ Verifying CPU Board Positions
Restoring BaseBoard Positions
Do not attempt to configure the DIP switches and jumper plugs on the base board. However, if you suspect that the DIP switch or jumper plug positions have been altered, restore them to the positions shown in Figure 2-2.
.
Figure 2-2 Base Board DIP Switch and Jumper Plug Positions
All DIP switch positions on
Jumper plug positions empty
On
Plug inserted in bottom position
Installing the Router Module 2-5
Verifying CPU BoardPositions
Do not attempt to configure the jumper plugs on the CPU board. However, if you suspect that the jumper plug positions have been altered, restore them to the positions shown in Figure 2-3.
.
Figure 2-3 CPU Board Jumper Plug Positions
Installing the Router Module
This section describes how to install the router module in the CoreBuilder 5000 Integrated System Hub.
You do not need to power off the hub to install or remove the router module. You can insert the module while the hub is operating(hot swap capability).
To install the router module:
1 Properly ground yourself prior to handling the module.
Put on a static wrist guard or touch a grounded static mat before you handle the module.
2 Locate 3 adjacent open slots in the hub, or remove panels on the hub to expose 3 slots for the router module.
Plugs not inserted
Plug inserted in bottom position Plug inserted
2-6 CHAPTER 2: INSTALLING THE MODULE
3 Insert the router module into the board guides at the top and bottom of the slot and slide it into the hub by pressing firmly at the top and bottom of the faceplate. Make sure that the module ejectors are open fully when you insert the module and that the connectors are well-seated into the backplane of the hub. Figure 2-4 shows a router module being installed in a CoreBuilder 5000 Integrated System Hub.
Figure 2-4 CoreBuilder 5000 Network Router Module in a CoreBuilder 5000 Integrated System Hub
To minimize electromagnetic interference, ensure that the slots adjacent to the router module are occupied or have blank panels installed.
4 Push the module ejectors closed.
5 Using your fingers, tighten the spring-loaded screws on the front of the router module faceplate (do not overtighten).
Spring-loaded screws
CoreBuilder 5000 NetworkRouter Module
Spring-loaded screws
Ejector (opened)
Ejector
Making NIM Connections 2-7
Making NIM Connections
This section provides guidelines for making NIM (Network Interface Module) network cable connections. This section describes the following topics:
■ Making FDDI NIM Connections
■ Making Quad Serial NIM Connections
■ Making ATM NIM Connections
Making FDDI NIMConnections
This section provides information on the following topics:
■ Connecting the Multi-Mode, Dual Attachment Station NIM
■ Connecting the Multi-Mode, Single Attachment Station NIM
■ Connecting the Multi-Mode Optical Bypass Switch
■ Connecting the Single Mode, Dual Attachment Station NIM
Connecting the Multi-Mode, Dual Attachment Station NIM
The Multi-Mode, Dual Attachment Station NIM (MM, DAS) connectors are Fiber Distributed Data Interface (FDDI) standard physical sublayer (PHY) connectors. The media interface connector (MIC) connects to FDDI-standard 62.5/125 micron multi-mode fiber optic cable.
Figure 2-5 shows the MIC connector typically used for network and chassis connections in multi-mode FDDI applications.
Figure 2-5 Multi-Mode FDDI Network Interface Connector, MIC Type
A dual attachment station requires two connections, one to the primary ring and one to the secondary ring. On the FDDI MM, DAS NIM, the PHY-A port is the left port and PHY-B is the right port.
Figure 2-6 shows how to connect a FDDI MM, DAS router module to another Dual Attachment Station.
H17
38
2-8 CHAPTER 2: INSTALLING THE MODULE
Figure 2-6 Making Connections to the FDDI MM, DAS NIM
To connect the FDDI MM, DAS NIM to another Dual Attachment Station:
1 Connect PHY-A on the router module to PHY-B on the other DAS.
2 Connect PHY-B on the router module to PHY-A on the other DAS.
Connecting the Multi-Mode, Single Attachment Station NIM
Connect the Single Attachment router module’s PHY-A port through a concentrator to a Single Attachment ring (Figure 2-7).
Figure 2-7 Making Connections to the FDDI MM, SAS NIM
PHY-B
PHY-A
Dual Attachment Station (DAS)
PHY-BPHY-A
To concentrator
PHY-A
Making NIM Connections 2-9
You can also connect the FDDI MM, SAS router module directly to another device in a point-to-point configuration.
Connecting the Multi-Mode Optical Bypass Switch
The Multi-Mode FDDI router modules provide an optical bypass capability that automatically drops the router module from the FDDI ring if the module fails. Dropping the module from the ring ensures that the ring remains available to the other stations.
Figure 2-8 shows how to connect an optical bypass switch (not included with the CoreBuilder 5000 Network Router Module) to the FDDI MM, DAS NIM.
Figure 2-8 Connecting the Multi-Mode Optical Bypass Switch
To connect the FDDI MM, DAS NIM to an optical bypass switch:
1 Connect PHY-A on the router module to PHY-B on the optical bypass switch.
2 Connect PHY-B on the router module to PHY-A on the optical bypass switch.
3 Connect one end of the optical bypass interface cable to the 6-pin Deutsche Industrie-Norm (DIN) connector on the optical bypass switch.
4 Connect the other end of the optical bypass interface cable to the 6-pin DIN connector on the router module.
Optical bypass interface cable
Bypass operation
Optical bypass switch
DIN connector
To ring
2-10 CHAPTER 2: INSTALLING THE MODULE
Connecting the Single Mode, Dual Attachment Station NIM
A dual attachment, single mode module configuration requires two connections: one to the primary ring and one to the secondary ring.
Figure 2-9 shows how to connect a FDDI SM, DAS router module to another Dual Attachment Station.
Figure 2-9 Making Connections to the FDDI SM, DAS NIM
To connect the FDDI SM, DAS NIM to another Dual Attachment Station:
1 Connect one end of an FC connector cable to the PHY-A XMTR connector on the router module.
2 Connect the other end of the FC connector cable to the primary ring RCVR connector on the other DAS.
3 Connect one end of a second FC connector cable to the PHY-A RCVR connector on the router module.
4 Connect the other end of the second FC connector cable to the primary ring XMTR connector on the other DAS.
5 Connect one end of a third FC connector cable to the PHY-B XMTR connector on the router module.
6 Connect the other end of the third FC connector cable to the secondary ring RCVR connector on the other DAS.
7 Connect one end of a fourth FC connector cable to the PHY-B RCVR connector on the router module.
8 Connect the other end of the fourth FC connector cable to the secondary ring XMTR connector on the other DAS.
FC connector type
To primary ring
From primary ring
From secondary ring
To secondary ring
Making NIM Connections 2-11
Making Quad SerialNIM Connections
The Quad Serial NIM has four synchronous serial ports with custom DB-60 connectors.
When setting up your serial port connections, consider distance limitations and potential electromagnetic interference (EMI) as defined in the Electronics Industries Association (EIA) and Telecommunications Industry Association (TIA) standards, such as standard EIA/TIA-232.
Figure 2-10 shows how to connect the Quad Serial NIM from any one serial port on the router module to a modem or other communications device.
Figure 2-10 Making Connections to the Quad Serial NIM
Be careful to insert the DB-60 connector correctly to prevent damage to the connector pins.
To connect the Quad Serial NIM, attach each serial port from the custom 60-pin connector to a modem or other DCE device using one of the following standard device cable connectors:
■ EIA/TIA-232
■ EIA/TIA-449
■ EIA-530
■ V.35
■ X.21
Modem or other communications device
EIA/TIA-232, EIA/TIA-449, V.35, X.21 or EIA-530 Connector
Custom 60-pin connectorSerial transmission cable
2-12 CHAPTER 2: INSTALLING THE MODULE
Making ATM NIMConnections
This section provides information on the following topics:
■ ATM Connector Types
■ ATM Distance Limitations
ATM Connector Types
Each ATM NIM type requires a specific connector (Figure 2-11):
OC-3 MM NIM – Requires a multi-mode SC-type connector.
OC-3 SM NIM – Requires a single mode SC-type connector.
Figure 2-11 Making Connections to the ATM NIMs
ATM Distance Limitations
The SONET (Synchronous Optical Network) specification for fiber-optic transmission defines two types of fiber:
■ single mode
■ multimode
Single-mode fiber is capable of higher bandwidth and greater cable run distances than multimode fiber.
SC-type connector forATM OC-3 MM NIM
SC-type connector forATM OC-3 SM NIM
Making NIM Connections 2-13
The typical maximum distances for single-mode and multimode transmissions, as defined by the SONET, are provided in Table 2-2. If you connect two optical devices at a distance greater than those specified in Table 2-2, significant signal loss could occur, making transmission unreliable.
Table 2-2 ATM Distance Limitations
Fiber Type Maximum Distance Between Stations
Single mode Up to 9 miles (15 kilometers)
Multimode Up to 1.5 miles (3 kilometers)
3
CONFIGURING THE MODULEThis chapter contains the following topics:
■ Configuration Overview
■ Attaching a Management Terminal
■ Configuring the Cisco NIM Connections
■ Configuring Cisco Parameters
■ Configuring 3Com Parameters
CAUTION: Throughout this chapter, Cisco nomenclature refers to the four Token Ring backplane connections as interfaces 0, 1, 2, and 3. 3Com refers to the same four router connections as ports 1, 2, 3, and 4. For example, when configuring the router module, Cisco interface 0 is equivalent to 3Com port 1.
Configuration Overview
The following list is an overview of the procedures that are required configure the router module. For more detail, refer to sections that follow.
CAUTION: Failure to follow the configuration sequence specified in this section could result in error messages at the router management terminal during the configuration procedure. For best results, use the procedure as outlined in the sections that follow.
To configure the router module:
1 Attach a Management Terminal – Attach a management terminal to the console port of the router module.
2 Configure the Cisco NIM Connections – From the management terminal, use Cisco router configuration commands to configure the NIM (Network Interface Module) connections.
3-2 CHAPTER 3: CONFIGURING THE MODULE
3 Configure the Cisco Parameters – Use the management terminal to configure the four Cisco router interfaces, including interface speed.
4 Configure the 3Com Parameters – Use the management terminal that is connected to the 3Com® CoreBuilder 5000 Distributed Management Module (DMM) to configure the four 3Com router ports, including CoreBuilder™ 5000 backplane network speed.
Each of these steps is detailed in the sections that follow.
If you are using the router module in an unmanaged hub (one in which a DMM module is not installed), upon power on, the router module uses the last module configuration saved in NVRAM. To disable NVRAM configuration, set DIP switch 5 to Off (see Figure 2-2).
When you power on the router module with NVRAM configuration disabled, the four Token Ring ports are set to isolated mode.
Attaching a Management Terminal
This section provides information on attaching a terminal to the console or auxiliary ports of the router module for use as a Cisco management terminal.
You must use the console port for initial router configuration. After you configure the router, you can use the auxiliary port for an asynchronous serial connection.
Connecting to theConsole Port
All router modules include an asynchronous router console port (female DB-25 connector) wired as a data communications equipment (DCE) device. The port requires a straight-through cable for connection to a local terminal. The port uses the following default parameters:
■ 9600 baud
■ 8 data bits
■ No parity generated or checked
■ 2 stop bits
Configuring the Cisco NIM Connections 3-3
Connecting to theAuxiliary Port
All router modules include a male DB-25 connector auxiliary port (labeled AUX PORT DTE). The auxiliary port is a shared-memory data terminal equipment (DTE) port to which you can attach an EIA/TIA-232 connector from a channel service unit/data service unit (CSU/DSU), a modem, or protocol analyzer for network access.
Console and auxiliary port cabling requirements are provided in Appendix B, Cabling Specifications.
Configuring the Cisco NIM Connections
From the Cisco management terminal, use Cisco IOS routing configuration commands to configure the FDDI or Quad Serial NIM connections.
If you are configuring a base router module without a NIM installed(Model Number 6701CS-NN), proceed to the next section Configuring Cisco Parameters.
You may receive status messages referring to NIM 1, NIM 2, and NIM 3. Cisco IOS makes the following NIM designations:
■ Optional NIM as NIM 1
■ Token Ring backplane interfaces 0 and 1 (3Com ports 1 and 2) as NIM 2
■ Token Ring backplane interfaces 2 and 3 (3Com ports 3 and 4) as NIM 3
For detailed information on Cisco IOS routing configuration commands, refer to the Cisco hardcopy documentation set(Part Number 17-00138-MS) or to the Cisco documentation set on the Cisco UniverCD™ CD-ROM (Part Number 17-00138-CD).
Configuring Cisco Parameters
This section outlines procedures for configuring Cisco parameters for the four Token Ring interface connections on the router module using Cisco IOS software management commands. The procedures include:
■ Setting General Interface Parameters
■ Setting Token Ring Speed
3-4 CHAPTER 3: CONFIGURING THE MODULE
Setting GeneralInterface Parameters
Set any required general Cisco parameters for the four router interfaces. Cisco Systems IOS software provides management commands for configuring routing interface connections. Refer to the Cisco hardcopy documentation set (Part Number 17-00138-MS) or to the Cisco documentation set on the Cisco UniverCD CD-ROM(Part Number 17-00138-CD).
Setting Token RingSpeed
Set the Token Ring speed of each router interface connection to match the speed of the CoreBuilder 5000 backplane network to which it will be connected.
To set the Token Ring speed of a router interface:
1 Use DMM at the CoreBuilder 5000 management station to ensure that the router interface port is in isolated mode:
CB5000> set port 7.1 network isolatedPort 07.01 network id set to ISOLATED.
2 At the router management terminal, set the configuration mode to enable:
Router> enable
3 Enter the required password:
Password: ****
4 Set the router management terminal to configuration mode:
Router# config terminalEnter configuration commands, one per line. End with CNTL/Z.Router(config)#
5 Specify the number of the Token Ring interface:
Router(config)# interface tokenring 0Router(config-if)#
6 Shut down the router interface:
Router(config-if)# shutdownRouter(config-if)#
7 Specify the ring speed of the router interface (in this example, 4 MBPS):
Router(config-if)# ring-speed 4Router(config-if)#
Configuring 3Com Parameters 3-5
8 Remove the router interface from shutdown state:
Router(config-if)# no shutdownRouter(config-if)#
9 Exit from configuration mode:
Router(config-if)# ^ZRouter#
10 Save the interface configuration changes:
Router# write memBuilding configuration...[OK]Router#
At this point, the system may display a sequence of RESET messages on the router management terminal. This a normal, temporary condition that ends when the interface synchronizes to the new speed.
Configuring 3Com Parameters
This section outlines procedures for using DMM commands to configure basic parameters for the 3Com router module.
Refer to the 3Com CoreBuilder 5000 Integrated System Hub Installation and Operation Guide, Chapter 1, for a CoreBuilder 5000 backplane architecture description and to the 3Com DMM Commands Guide for detailed information on DMM configuration commands.
To configure the 3Com router module:
1 Set the Token Ring speed of the targeted four CoreBuilder 5000 backplane networks.
You must set the Token Ring speed of a backplane network to match the Token Ring speed of the Cisco interface you intend to connect to the backplane network.
In the following example, Token Ring backplane network 9 is set to 4 Mbps, the same speed at which the Cisco interface port was set.
CB5000> set network token_ring token_ring_9 ring_speed 4mbps Value set to 4 MBPS.
2 Connect each of the router ports to one of the 10 CoreBuilder 5000 backplane networks (or set the port to isolated mode).
3-6 CHAPTER 3: CONFIGURING THE MODULE
You cannot set more than one router port to any one backplane network.
In the following example, 3Com router port 1 (Cisco interface 0) is set to backplane network 9:
CB5000> set port 7.1 network token_ring_9Port 07.01 network id set to TOKEN_RING_9.
At this point, the system may display a sequence of RESET messages at the Cisco router management terminal. This is a normal, temporary condition that ends when the interface successfully connects to the backplane network.
3 Save the configuration:
CB5000> save all
Failure to save configuration settings may result in loss of configuration data.
4
MONITORING OPERATIONThis chapter contains the following topics:
■ Monitoring Router Module LEDs
■ Displaying the Router Module Configuration
Monitoring Router Module LEDs
This section identifies the front panel LEDs of the CoreBuilder™ 5000 Network Router Module:
■ Common Front Panel LEDs
■ FDDI NIM LEDs
■ Quad Serial NIM LEDs
■ ATM NIM LEDs
4-2 CHAPTER 4: MONITORING OPERATION
Common Front PanelLEDs
The front panel LEDs of the base model (without NIM) router module are common to all router module models. Figure 4-1 shows the common front panel LEDs. Table 4-1 describes the LEDs.
Figure 4-1 Common Front Panel LEDs
RESET is a recessed pushbutton that is used to reset the router module under certain conditions. Refer to Chapter 5, Troubleshooting, for more information on using the RESET button.
Monitoring Router Module LEDs 4-3
.
Table 4-1 Front Panel LED Definitions
LED Description Definition
MOD STATUS Module Status ON – Indicates that 3Com router software is loaded and the router module is operational.
OFF – Indicates that 3Com router software is not operational.
NIM PRES NIM Present ON – Indicates that an optional NIM is installed on the router module.
OFF – Indicates that an optional NIM is not installed on the router module.
SYS RUN System Run ON – Indicates that Cisco IOS router software is loaded and operational.
OFF – Indicates that Cisco IOS router software is not loaded and operational.
LEDS NIM NIM 1 Data Present
ON – Indicates that data traffic is present on one or more of the interfaces on the optional NIM.
OFF – Indicates that data traffic is not present on any interfaces on the optional NIM.
LEDS DTR A, B NIM 2 (Dual Token Ring A and B) Data Present
ON – Indicates that data traffic is present on one or both of Cisco interfaces 0 and 1 (3Com ports 1 and 2).
OFF – Indicates that data traffic is present on one or both of Cisco interfaces 0 and 1 (3Com ports 1 and 2).
LEDS DTR C, D NIM 3(Dual Token Ring C and D) Data Present
ON – Indicates that data traffic is present on one or both of Cisco interfaces 2 and 3 (3Com ports 3 and 4).
OFF – Indicates that data traffic is present on one or both of Cisco interfaces 2 and 3 (3Com ports 3 and 4).
HLTH NIM NIM 1 Healthy ON – Indicates that optional NIM 1 is operational and line protocol for the NIM interfaces is up.
OFF – Indicates that the optional NIM 1 is not operational.
HLTH DTR A, B NIM 2 (Dual Token Ring A and B) Healthy
ON – Indicates that Cisco interfaces 0 and 1 (3Com ports 1 and 2) are operational and line protocol for the interfaces is up.
OFF – Indicates that Cisco interfaces 0 and 1 (3Com ports 1 and 2) are not operational.
4-4 CHAPTER 4: MONITORING OPERATION
HLTH DTR C, D NIM 3 (Dual Token Ring A and B) Healthy
ON – Indicates that Cisco interfaces 2 and 3 (3Com ports 3 and 4) are operational and line protocol for the interfaces is up.
OFF – Indicates that Cisco interfaces 2 and 3 (3Com ports 3 and 4) are not operational.
16 MBPS A Port 1 (Cisco interface 0) set to 16 Mbps
ON – Indicates that port 1 (Cisco interface 0) is set to 16 Mbps.
OFF – Indicates that port 1 (Cisco interface 0) is set to 4 Mbps or is not initialized.
16 MBPS B Port 2 (Cisco interface 1) set to 16 Mbps
ON – Indicates that port 2 (Cisco interface 1) is set to 16 Mbps.
OFF – Indicates that port 2 (Cisco interface 1) is set to 4 Mbps or is not initialized.
16 MBPS C Port 3(Cisco interface 2) set to 16 Mbps
ON – Indicates that port 3 (Cisco interface 2) is set to 16 Mbps.
OFF – Indicates that port 3 (Cisco interface 2) is set to 4 Mbps or is not initialized.
16 MBPS D Port 4 (Cisco interface 3) set to 16 Mbps
ON – Indicates that port 4 (Cisco interface 3) is set to 16 Mbps.
OFF – Indicates that port 4 (Cisco interface 3) is set to 4 Mbps or is not initialized.
RING A IN Port 1 (Cisco interface 0) in Ring
ON – Indicates that port 1 (Cisco interface 0) is connected or connecting to its assigned backplane network, or is set to isolated mode.
OFF – Indicates that port 1(Cisco interface 0) is not connected to its assigned backplane network.
RING B IN Port 2 (Cisco interface 1) in Ring
ON – Indicates that port 2 (Cisco interface 1) is connected or connecting to its assigned backplane network, or is set to isolated mode.
OFF – Indicates that port 2 (Cisco interface 1) is not connected to its assigned backplane network.
Table 4-1 Front Panel LED Definitions (continued)
LED Description Definition
Monitoring Router Module LEDs 4-5
RING C IN Port 3 (Cisco interface 2) in Ring
ON – Indicates that port 3 (Cisco interface 2) is connected or connecting to its assigned backplane network, or is set to isolated mode.
OFF – Indicates that port 3 (Cisco interface 2) is not connected to its assigned backplane network.
RING D IN Port 4 (Cisco interface 3) in Ring
ON – Indicates that port 4 (Cisco interface 3) is connected or connecting to its assigned backplane network, or is set to isolated mode.
OFF – Indicates that port 4 (Cisco interface 3) is not connected to its assigned backplane network.
Table 4-1 Front Panel LED Definitions (continued)
LED Description Definition
4-6 CHAPTER 4: MONITORING OPERATION
FDDI NIM LEDs In addition to the common front panel LEDs, the three FDDI router module models also have the LEDs shown in Figure 4-2:
Figure 4-2 FDDI NIM LEDs
The PHY-A RING OP LED lights when the router module PHY-A attachment is connected in the FDDI A ring. The PHY-B RING OP LED (Dual-Attachment FDDI NIMs only) lights when the PHY-B attachment is connected in the FDDI B ring.
PHY-ARING OP
PHY-BRING OP
FDDI MM, DAS Router Module
FDDI MM, SAS Router Module
FDDI SM, DAS Router Module
Monitoring Router Module LEDs 4-7
Quad Serial NIMLEDs
The Quad Serial NIM router module model includes the additional LEDs shown in Figure 4-3.
Figure 4-3 Quad Serial NIM LEDs
P-3
P-2
P-1
P-0
LPCNTDTCRDRC
LPCNTDTCRDRC
LPCNTDTCRDRC
LPCNTDTCRDRC
4-8 CHAPTER 4: MONITORING OPERATION
Table 4-2 describes the Quad Serial NIM LEDs.
Table 4-2 Quad Serial NIM LED Definitions
LED Description Definition
LP Looped ON – Indicates that the port is set to a loopback state.
OFF – Indicates that the port is set to normal mode.
CN Connected ON – Indicates that the port is in ready-state (DSR, DTR, DCD, RTS, CTS signals) to exchange data.
OFF – Indicates that the port is not in ready-state to exchange data.
TD Transmitted Data ON – Indicates that data is being transmitted over the serial link from the DTE device. The router module port can be set to operate as DTE or DCE.
OFF – Indicates that data is not being transmitted by the DTE device.
TC Transmitted Clock The clock supplied by the DCE device to synchronize transmitted data.
RD Received Data ON – Indicates that data is being received over the serial link by the DCE device. Each router module port can be set to operate as DTE or DCE.
OFF – Indicates that data is not being received by the DCE device.
RC Received Clock The clock supplied by the DCE device to synchronize received data.
Monitoring Router Module LEDs 4-9
ATM NIM LEDs The ATM MM and ATM SM router modules include the additional LEDs shown in Figure 4-4.
Figure 4-4 ATM NIM LEDs
4-10 CHAPTER 4: MONITORING OPERATION
Table 4-3 describes the ATM NIM LEDs.
Displaying the Router Module Configuration
To display information about router module configuration and status, use the following DMM commands.
■ SHOW MODULE
■ SHOW MODULE VERBOSE
■ SHOW PORT
■ SHOW PORT VERBOSE
Table 4-3 ATM NIM LED Definitions
LED Description Definition
Busy ATM NIM Busy ON – Indicates that the NIM is not available to receive data cells.
OFF – Indicates that the NIM is available for data cells.
Ready ATM NIM Ready ON – Indicates that the NIM is ready to receive data cells.
OFF – Indicates that the NIM is not ready to receive ATM cells.
RX Cells Received Cells ON – Indicates that the ATM NIM is receiving a a data cell. This LED flickers during normal operation.
OFF – Indicates that the ATM NIM is not receiving a data cell.
Rx Alarm Receive Alarm ON – Indicates that the receive signal is lost or that a remote alarm has been received by the ATM NIM.
OFF – Indicates that the receive signal is not lost and that a remote alarm has not been received.
Displaying the Router Module Configuration 4-11
Using the SHOWMODULE Command
Use the SHOW MODULE command to display summary information about the router module:
CB5000> show module 7.1
This command displays the summary information shown in Figure 4-5.
Figure 4-5 SHOW MODULE Command Information
Using the SHOWMODULE VERBOSE
Command
Use the SHOW MODULE VERBOSE command to display detailed information about the router module:
CB5000> show module 7.1 verbose
This command displays the detailed information shown in Figure 4-6.
Figure 4-6 SHOW MODULE VERBOSE Command Information
Using the SHOWPORT Command
Use the SHOW PORT command to display summary information about any of the four router module ports:
CB5000> show port 7.2
Slot Module Version Network General Information----- --------------- ------- ------------- -------------------07.01 6704R-TCS v1.00.0 PER_PORT Module up
Slot Module Version Network General Information----- --------------- ------- ------------- -------------------07.01 6704R-TCS v1.00.0 PER_PORT Module up
6704R-TCS: CB5000 Token Ring Backbone Router Module
Boot Version: v1.00Native Software Version: 10.30Native Boot Software Version: v5.20Number Simple Ports: 1Network Interface Module Type: FDDI-SINGLE-MODE-DUAL-ATT A
4-12 CHAPTER 4: MONITORING OPERATION
This command displays the summary information shown in Figure 4-7.
Figure 4-7 SHOW PORT Command Information
Using the SHOWPORT VERBOSE
Command
Use the SHOW PORT VERBOSE command to display detailed information about any one of the four router module ports:
CB5000> show port 7.2 verbose
This command displays the detailed information shown in Figure 4-8.
Figure 4-8 SHOW PORT VERBOSE Command Information
The Speed field in Figure 4-8 identifies the speed for the Cisco interface that corresponds to the 3Com port.
Port Mode Status Network General Information----- -------- ------------------- ---------------- ---------------------07.02 LOGICAL OKAY TOKEN_RING_2
Port Display for Module 6704R-TCS :
Port Mode Status Network General Information----- -------- ------------------- ---------------- ----------------------07.02 LOGICAL OKAY TOKEN_RING_2
Port Connector: BACKPLANEIP Address: 151.104.12.1Subnetwork Mask: ff.ff.00.00Default Gateway: 0.0.0.0Station Address: 08-00-8f-00-00-01Speed: 16 MBPS
Displaying the Router Module Configuration 4-13
Interpreting theSHOW PORT Status
Field
The SHOW PORT and SHOW PORT VERBOSE commands provide standard DMM command configuration information with the exception of the Status field. DMM SHOW PORT Status field definitions are unique for the CoreBuilder 5000 Network Router Module. Table 4-4 lists the Status field definitions for ports on the CoreBuilder 5000 Network Router Module.
Table 4-4 SHOW PORT Status Field Definitions
Status Field Indication Definitions
NOT INSERTED The port is set to isolated mode.
CONNECTING The port is attempting to connect with the backplane network.
OKAY The port is connected normally to the backplane network.
SPEED MISMATCH The speed of the port (as set for the corresponding Cisco interface) does not match the speed of the backplane network to which it is assigned.
LOST LOCK The 3Com port has lost synchronization with the corresponding Cisco interface.
5
TROUBLESHOOTINGThis chapter provides hardware troubleshooting information to use if the CoreBuilder™ 5000 Network Router Module fails to operate correctly. After reviewing the information in this chapter, if you cannot correct the problem, contact your 3Com representative for further assistance.
For IOS software-related troubleshooting information, refer to the appropriate Cisco Systems manual. For information on interpreting router module LEDs, refer to Chapter 4, Monitoring Operation.
This chapter contains the following sections:
■ Troubleshooting Startup Problems
■ Troubleshooting Network Connection Problems
■ Troubleshooting WAN Connection Problems
■ Correcting Operating Malfunctions
■ Recovering a Lost Password
Troubleshooting Startup Problems
This section describes how to troubleshoot startup problems on the CoreBuilder 5000 Network Router Module.
When you first install the router module in the hub, the Cisco Systems router software runs a full set of hardware diagnostic tests. If the router module fails diagnostics, the MOD STATUS LED does not turn off. This indicates a problem with the router module hardware or software. Refer to the appropriate Cisco Systems troubleshooting documentation for corrective action.
5-2 CHAPTER 5: TROUBLESHOOTING
Troubleshooting Network Connection Problems
If the CoreBuilder 5000 Network Router Module does not appear to be routing traffic properly on the network, it may indicate that there is no connection to the network. Perform the following troubleshooting actions:
■ From the 3Com management interface (for example, CoreBuilder 5000 Distributed Management Module), verify that the router module backplane port is set to the appropriate backplane network (channel).
■ Use the DMM SHOW PORT command and check the Status field for the port. Refer to Using the SHOW PORT VERBOSE Command on page 4-12.
■ Use the ping utility to confirm there is network connectivity.
■ Verify that your router configuration is valid. Refer to the Cisco Systems Troubleshooting Internetworking Systems guide for more information.
Troubleshooting WAN Connection Problems
If you suspect that the CoreBuilder 5000 Network Router Module has lost WAN connectivity, perform the following troubleshooting actions:
■ Verify that you have the correct cable for your configuration. Refer to Appendix B, Cabling Specifications, for lists of approved cables, cable specifications, and pinouts.
■ If you are using a:
DCE cable – Verify that a clock rate is defined in the router WAN interface configuration.
DTE cable – Verify that no clock rate is defined in the router WAN interface configuration.
■ Verify that your router configuration is valid. Refer to the Cisco Systems Troubleshooting Internetworking Systems guide for more information.
Correcting Operating Malfunctions 5-3
Correcting Operating Malfunctions
Table 5-1 lists the symptoms, possible causes and corrective actions of operating malfunctions for the CoreBuilder 5000 Network Router Module.
.
Table 5-1 Troubleshooting Malfunctions
Symptom Possible Cause Corrective Action
Module does not power up
Module is not fitted correctly against backplane.
To ensure that the module is fitted correctly, remove the module from the slots and replace it in the slots.
Place the module in different slots in the hub.
Power mode is not enabled for slot.
Ensure that power mode is enabled for the slot.
The hub is not receiving electrical power.
Check that the hub is receiving power.
Test for power at the wall outlet by plugging in another device.
If the wall outlet is not receiving power, select another outlet on a different circuit.
Attached terminal does not operate
The terminal is malfunctioning.
Follow the troubleshooting procedures recommended by the terminal manufacturer.
Cables are unattached. Make sure that the cable connections at both ends are secure.
Cables are not the correct type.
Make sure that the cable attached to the terminal conforms to the specification. Refer to Appendix B for cabling specifications.
The console is configured incorrectly.
Check the console port configuration.Note: You can use TELNET to verify port configurations.
Refer to the Cisco Systems Router Products Configuration and Reference documents for more information. Verify that the port is configured as:
■ 8-bit data
■ No parity
■ 2 stop bits
■ 9600 baud rate
■ Flow control parameters set to Xon and Xoff
5-4 CHAPTER 5: TROUBLESHOOTING
Recovering a Lost Password
To recover a lost password:
1 Attach an ASCII terminal to the router module console port.
2 Configure the terminal to operate at 9600 baud, 8 data bits, no parity, 2 stop bits.
3 Enter the SHOW VERSION command to display the existing configuration register value. Note this value for later use in step 13.
4 If the Break function is disabled on the router (refer to Table C-1), power cycle the router (turn off the router, wait 5 seconds, and then turn it on again). If the Break function is enabled, go to step 5.
5 Within 60 seconds of turning on the router, press the Break key. Pressing this key causes the terminal to display the bootstrap program prompt (>).
6 To reset the virtual configuration register (VCR) to boot from the boot ROMs and ignore NVRAM, enter the O/R (Reset VCR Value) command at the bootstrap prompt:
> o/r 0x2141
To recover a lost password, you must be able to see it when you display configuration information. To see the password, be sure to set the configuration register so that the router module engine ignores the contents of the NVRAM.
The terminal fails to respond to commands entered at the keyboard
The terminal is not receiving commands.
Power off the terminal, wait 30 seconds, and then power on again.
The keyboard cable is attached incorrectly.
If the terminal still does not respond to commands, power off the terminal and disconnect the keyboard cable. Then re-attach the keyboard cable and power on the terminal.
Cables are not the correct type.
Make sure that the cable attached to the terminal conforms to the specification. Refer to Appendix B for cabling specifications.
The console port is malfunctioning.
Check the state of the LEDs on the front of the module. If the LEDs indicate a problem, contact your supplier for assistance.
Table 5-1 Troubleshooting Malfunctions (continued)
Symptom Possible Cause Corrective Action
Recovering a Lost Password 5-5
7 Initialize the router by entering the I (Initialize) command as follows:
> i
The router power cycles and the configuration register is set to 0x2141 (ignore Break key, ignore NVRAM, boot from ROM). The router boots the boot ROM system image and prompts you with the following system configuration dialog prompt:
--- System Configuration Dialog ---
8 Enter No in response to the system configuration dialog prompts until the following system message appears:
Press RETURN to get started!
9 Press Return. The boot ROM prompt appears as follows:
Router(boot)>
10 Enter the ENABLE command to enter the EXEC mode in the boot ROM image. The prompt changes to the following:
Router(boot)#
11 Enter the SHOW CONFIGURATION EXEC command to display the password in the configuration file and to display any boot system commands.
12 To exit configuration mode, press Ctrl-Z.
13 Restore the virtual configuration register to the value noted in step 3. Use the CONFIGURE TERMINAL command to restore the value:
router # configure terminalEnter system configuration commands, one per line.
Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Zconfig-reg 0xYYYY ^Zwhere YYYY is the value noted in step 3
14 Reboot the router and use the recovered password.
Refer to Appendix C for more information about the virtual configuration register.
A
PRODUCT SPECIFICATIONSThis appendix contains the following hardware specifications for the 3Com CoreBuilder™ 5000 Network Router Module:
■ General Specifications
■ Electrical Specifications
■ Environmental Specifications
■ Mechanical Specifications
A-2 APPENDIX A: PRODUCT SPECIFICATIONS
General Specifications
Table A-1 identifies general specifications for the router module.
* The Orion microprocessor is based on the MIPS R4400 and is pin-compatible.† NRZ = Nonreturn to zero. NRZI = Nonreturn to zero inverted.‡ DTE = Data terminal equipment. DCE = Data communications equipment.
Table A-1 General Router Module Specifications
Specification Description
Processor 100 MHz IDT Orion RISC*
Main Memory (DRAM) 8, 16, or 32 MB
Shared Memory (DRAM) 4, 8, or 16 MB
Flash Memory 4, 8 MB
Nonvolatile RAM 128 or 512 KB
Boot ROM 128 to 512 KB
Boot Flash 4 MB
Network Interface Options
FDDI Multi-Mode, Dual Attachment Station FDDI Multi-Mode, Single Attachment StationFDDI Single Mode, Dual Attachment StationQuad SerialATM OC3, Multi-ModeATM OC3, Single Mode
Token Ring Interface 4 backplane connection
Synchronous Serial Interfaces(Quad Serial NIM)
EIA/TIA-232, EIA/TIA-449, V.35, X.21 (NRZ/NRZI† and DTE/DCE‡), EIA-530 (NRZ/NRZI and DTE). All serial cables use a DB-60 connector.
Console and Auxiliary Ports
Asynchronous serial
Electrical Specifications A-3
Electrical Specifications
Table A-2 identifies the electrical specifications for the router module.
Environmental Specifications
Table A-3 identifies environmental specifications for the router module.
Mechanical Specifications
Table A-4 identifies the mechanical specifications of the router module.
Table A-2 Electrical Router Module Specifications
Voltage Amps (Watts)
Power Requirements(with NIM)
+5 VDC 19.0 A (95.0 W)
–5 VDC 0.05 A (0.25 W)
+12 VDC 0.5 A (6.0 W)
–12 VDC 0.08 A (1.0 W)
–2 VDC 0.05A (0.1 W)
(102.35 W Total)
Table A-3 Environmental Router Module Specifications
Operating Temperature 0 °C to 50 °C (32 °F to 122 °F)
Storage Temperature -10 °C to 66 °C (22 °F to 138 °F)
Humidity Less than 95%, noncondensing
BTU/hr 349.31 BTUs/hr
Table A-4 Mechanical Router Module Specifications
CoreBuilder 5000Network Router Module(with NIM)
Width 3.0” (7.62 cm)
Length 10.875” (27.623 cm)
Height 15.250” (38.735 cm)
Weight 8.5 lbs (3.859 kg)
B
CABLING SPECIFICATIONSUse the information in this appendix to verify that the cables you use meet equipment requirements. For proper operation, use only approved cables when you install all equipment.
This appendix describes:
■ Console and Auxiliary Port Cables
■ Quad Serial NIM Cables
Console and Auxiliary Port Cables
This section specifies the cable pinouts of the console and auxiliary ports of the CoreBuilder™ 5000 Network Router Module. You can use any cable that meets the pinout specifications described in this section.
All pins not listed are not connected.
This section describes the following cabling specifications:
■ Console Port Pinouts
■ Auxiliary Port Pinouts
B-2 APPENDIX B: CABLING SPECIFICATIONS
Console Port Pinouts Table B-1 identifies the pinout specifications for the console port.
Auxiliary PortPinouts
Table B-2 identifies the pinout specifications for the auxiliary port.
Table B-1 Console Port Pinout Specification
Pin Signal Name Input/Output
1 Frame GND —
2 Received Data Input
3 Transmitted Data Output
4 Request To Send Looped to Clear To Send
5 Clear To Send Looped to Request To Send
6 Connected to Pin 8 Output
7 Signal Ground —
8 Data Carrier Detect Output
20 Data Terminal Ready Input
Table B-2 Auxiliary Port Pinout Specification
Pin Signal Name Input/Output
1 Frame GND —
2 Transmitted Data Output
3 Received Data Input
4 Request To Send Output
5 Clear To Send Input
7 Signal Ground —
8 Data Carrier Detect Input
20 Data Terminal Ready Output
Quad Serial NIM Cables B-3
Quad Serial NIM Cables
This section specifies cable pinouts for each type of synchronous serial cable supported by the Quad Serial NIM (Network Interface Module) on the CoreBuilder 5000 Network Router Module.
This section describes:
■ EIA-530 DTE Synchronous Serial Cable Pinouts
■ EIA-232 DTE and DCE Serial Cable Assembly and Pinouts (DB-25)
■ EIA-449 DTE and DCE Serial Cable Assembly and Pinouts (DB-37)
■ V.35 DTE and DCE Serial Cable Assembly and Pinouts
■ X.21 DTE and DCE Serial Cable Pinouts (DB-15)
In Table B-3 through Table B-11, serial pinouts for DTE and DCE cables use arrows to indicate signal direction:
■ → indicates DTE to DCE
■ ← indicates DCE to DTE
Due to the small pins on the DB-60 connector, you should not attempt to manufacture or solder these cables.
B-4 APPENDIX B: CABLING SPECIFICATIONS
EIA-530 DTESynchronous Serial
Cable Pinouts
Figure B-1 shows the EIA-530 serial cable assembly and Table B-3 lists the cable pinouts (Part Number ERM530-CAB). Arrows in the table indicate signal direction:
■ → indicates DTE to DCE
■ ← indicates DCE to DTE
Figure B-1 EIA-530 Cable Assembly
Table B-3 EIA-530 Cable Pinout Specifications
60 Pin1 Signal 25 Pin1 SignalDirection DTE DCE2
J1-46J1-47
Shield_GNDMODE_2
J2-1—
Shield—
Shorted
J1-48J1-49
GNDMODE_1
— — Shorted
J1-11J1-12
TxD/RxD+TxD/RxD–
J2-2J2-14
BA(A), TxD+BA(B), TxD-
→→
J1-28J1-27
RxD/TxD+RxD/TxD–
J2-3J2-16
BB(A), RxD+BB(B), RxD-
←←
J1-9J1-10
RTS/CTS+RTS/CTS–
J2-4J2-19
CA(A), RTS+CA(B), RTS-
→→
J1-1J1-2
CTS/RTS+CTS/RTS–
J2-5J2-13
CB(A), CTS+CB(B), CTS-
←←
J1-3J1-4
DSR/DTR+DSR/DTR–
J2-6J2-22
CC(A), DSR+CC(B), DSR-
←←
J1-5J1-6
DCD/DCD+DCD/DCD–
J2-8J2-10
CF(A), DCD+CF(B), DCD-
←←
H19
72
60-pin connector 25-pin connector
Connectors are not to scale
J2-13J2-25
J2-14J2-1
J1-46J1-45J1-16J1-15
J1-1J1-30J1-31J1-60
Quad Serial NIM Cables B-5
EIA-232 DTE andDCE Serial Cable
Assembly andPinouts (DB-25)
Figure B-2 shows the EIA-232 serial cable assembly. Table B-4 lists the DTE cable pinouts (Part Number ERM232-CAB). Table B-5 lists the DCE cable pinouts (Part Number ERF232-CAB). Arrows in the tables indicate signal direction:
■ → indicates DTE to DCE
■ ← indicates DCE to DTE
Figure B-2 EIA-232 Serial Cable Assembly
J1-24J1-23
TxC/RxC+TxC/RxC–
J2-15J2-12
DB(A), TxC+DB(B), TxC-
←←
J1-26J1-25
RxC/TxCE+RxC/TxCE–
J2-17J2-9
DD(A), RxC+DD(B), RxC-
←←
J1-44J1-45
LL/DCDCircuit_GND
J2-18J2-7
LLCircuit GND
→—
J1-7J1-8
DTR/DSR+DTR/DSR–
J2-20J2-23
CD(A), DTR+CD(B), DTR-
→→
J1-13J1-14
TxCE/TxC+TxCE/TxC–
J2-24J2-11
DA(A), TxCE+DA(B), TxCE-
→→
J1-51J1-52
GNDMODE_DCE
— — Shorted
1Any pin not referenced is not connected.
2 The EIA-530 interface cannot be operated in DCE mode. A DCE cable is notavailable for the EIA-530 interface.
Table B-3 EIA-530 Cable Pinout Specifications (continued)
60 Pin1 Signal 25 Pin1 SignalDirection DTE DCE2
H19
72
60-pin connector 25-pin connector
Connectors are not to scale
J2-13J2-25
J2-14J2-1
J1-46J1-45J1-16J1-15
J1-1J1-30J1-31J1-60
B-6 APPENDIX B: CABLING SPECIFICATIONS
Table B-4 EIA-232 DTE Cable Pinouts (DB-60 to DB-25)
60 Pin1 Signal Note Direction 25 Pin1 Signal
J1-50J1-51J1-52
MODE_0GNDMODE_DCE
Shorting Group — — —
J1-46 Shield_GND Single — J2-1 Shield GND
J1-41Shield
TxD/RxD—
Twisted pair no. 5 →—
J2-2Shield
TxD—
J1-36Shield
RxD/TxD—
Twisted pair no. 9 ←—
J2-3Shield
RxD—
J1-42Shield
RTS/CTS—
Twisted pair no. 4 →—
J2-4Shield
RTS—
J1-35Shield
CTS/RTS—
Twisted pair no. 10 ←—
J2-5Shield
CTS–
J1-34Shield
DSR/DTR—
Twisted pair no. 11 ←—
J2-6Shield
DSR—
J1-45Shield
Circuit GND Twisted pair no. 1 — J2-7Shield
Circuit GND
J1-33Shield
DCD/LL—
Twisted pair no. 12 ←—
J2-8Shield
DCD—
J1-37Shield
TxC/NIL—
Twisted pair no. 8 ←—
J2-15Shield
TxC—
J1-38Shield
RxC/TxCE—
Twisted pair no. 7 ←—
J2-17Shield
RxC—
J1-44Shield
LL/DCD—
Twisted pair no. 2 →—
J2-18Shield
LTST—
J1-43Shield
DTR/DSR—
Twisted pair no. 3 →—
J2-20Shield
DTR—
J1-39Shield
TxCE/TxC—
Twisted pair no. 6 →—
J2-24Shield
TxCE—
1 Any pin not referenced is not connected.
Quad Serial NIM Cables B-7
Table B-5 EIA-232 DCE Cable Pinouts (DB-60 to DB-25)
60 Pin1 Signal Note Direction 25 Pin1 Signal
J1-50J1-51
MODE_0GND
Shorting Group — — —
J1-46 Shield_GND Single — J2-1 Shield GND
J1-36Shield
RxD/TxD—
Twisted pair no. 9 ←—
J2-2Shield
TxD—
J1-41Shield
TxD/RxD—
Twisted pair no. 5 →—
J2-3Shield
RxD—
J1-35Shield
CTS/RTS—
Twisted pair no. 10 ←—
J2-4Shield
RTS—
J1-42Shield
RTS/CTS—
Twisted pair no. 4 →—
J2-5Shield
CTS—
J1-43Shield
DTR/DSR—
Twisted pair no. 3 →—
J2-6Shield
DSR—
J1-45Shield
Circuit GND—
Twisted pair no. 1 ——
J2-7Shield
Circuit GND
J1-44Shield
LL/DCD—
Twisted pair no. 2 →—
J2-8Shield
DCD—
J1-39Shield
TxCE/TxC—
Twisted pair no. 7 →—
J2-15Shield
TxC—
J1-40Shield
NIL/RxC—
Twisted pair no. 6 →—
J2-17Shield
RxC—
J1-33Shield
DCD/LL—
Twisted pair no. 12 ←—
J2-18Shield
LTST—
J1-34Shield
DSR/DTR—
Twisted pair no. 11 ←—
J2-20Shield
DTR—
J1-38Shield
RxC/TxCE—
Twisted pair no. 8 ←—
J2-24Shield
TxCE—
1 Any pin not referenced is not connected.
B-8 APPENDIX B: CABLING SPECIFICATIONS
EIA-449 DTE andDCE Serial Cable
Assembly andPinouts (DB-37)
Figure B-3 shows the EIA-449 serial cable assembly. Table B-6 lists the DTE cable pinouts (Part Number ERM449-CAB). Table B-7 lists the DCE cable pinouts (Part Number ERF449-CAB). Arrows in the tables indicate signal direction:
■ → indicates DTE to DCE
■ ← indicates DCE to DTE
Figure B-3 EIA-449 Serial Cable Assembly
H19
73
60-pin connector (J1) 37-pin connector (J2)
Connectors are not to scale
J2-19J2-37
J2-20J2-1
J1-46J1-45J1-16J1-15
J1-1J1-30J1-31J1-60
Table B-6 EIA-449 DTE Cable Pinouts (DB-60 to DB-37)
60 Pin1 Signal Note Direction 37 Pin1 Signal
J1-49J1-48
MODE_1GND
Shorting Group — — —
J1-51J1-52
GNDMODE_DCE
Shorting Group — — —
J1-46 Shield_GND Single — J2-1 Shield GND
J1-11J1-12
TxD/RxD+TxD/RxD–
Twisted pair no. 6 →→
J2-4J2-22
SD+SD–
J1-24J1-23
TxC/RxC+TxC/RxC–
Twisted pair no. 9 ←←
J2-5J2-23
ST+ST–
J1-28J1-27
RxD/TxD+RxD/TxD–
Twisted pair no. 11 ←←
J2-6J2-24
RD+RD–
J1-9J1-10
RTS/CTS+RTS/CTS–
Twisted pair no. 5 →→
J2-7J2-25
RS+RS–
J1-26J1-25
RxC/TxCE+RxC/TxCE–
Twisted pair no. 10 ←←
J2-8J2-26
RT+RT–
Quad Serial NIM Cables B-9
J1-1J1-2
CTS/RTS+CTS/RTS–
Twisted pair no. 1 ←←
J2-9J2-27
CS+CS–
J1-44J1-45
LL/DCDCircuit_GND
Twisted pair no. 12 →—
J2-10J2-37
LLSC
J1-3J1-4
DSR/DTR+DSR/DTR–
Twisted pair no. 2 ←←
J2-11J2-29
DM+DM–
J1-7J1-8
DTR/DSR+DTR/DSR–
Twisted pair no. 4 →→
J2-12J2-30
TR+TR–
J1-5J1-6
DCD/DCD+DCD/DCD–
Twisted pair no. 3 ←←
J2-13J2-31
RR+RR–
J1-13J1-14
TxCE/TxC+TxCE/TxC–
Twisted pair no. 7 →→
J2-17J2-35
TT+TT–
J1-15J1-16
Circuit_GNDCircuit_GND
Twisted pair no. 9 ——
J2-19J2-20
SGRC
1 Any pin not referenced is not connected.
Table B-6 EIA-449 DTE Cable Pinouts (DB-60 to DB-37) (continued)
60 Pin1 Signal Note Direction 37 Pin1 Signal
Table B-7 EIA-449 DCE Cable Pinouts (DB-60 to DB-37)
60 Pin1 Signal Note Direction 37 Pin1 Signal
J1-49J1-48
MODE_1GND
Shorting group — — —
J1-46 Shield_GND Single — J2-1 Shield GND
J1-28J1-27
RxD/TxD+RxD/TxD–
Twisted pair no. 11 ←←
J2-4J2-22
SD+SD–
J1-13J1-14
TxCE/TxC+TxCE/TxC–
Twisted pair no. 7 →→
J2-5J2-23
ST+ST–
J1-11J1-12
TxD/RxD+TxD/RxD–
Twisted pair no. 6 →→
J2-6J2-24
RD+RD–
J1-1J1-2
CTS/RTS+CTS/RTS–
Twisted pair no. 1 ←←
J2-7J2-25
RS+RS–
J1-24J1-23
TxC/RxC+TxC/RxC–
Twisted pair no. 9 →→
J2-8J2-26
RT+RT–
J1-9J1-10
RTS/CTS+RTS/CTS–
Twisted pair no. 5 →→
J2-9J2-27
CS+CS–
J1-29J1-30
NIL/LLCircuit_GND
Twisted pair no. 12 →—
J2-10J2-37
LLSC
B-10 APPENDIX B: CABLING SPECIFICATIONS
V.35 DTE and DCESerial Cable
Assembly andPinouts
Figure B-4 shows the V.35 serial cable assembly. Table B-8 lists the DTE cable pinouts (Part Number ERMV35-CAB). Table B-9 lists the DCE cable pinouts (Part Number ERFV35-CAB). Arrows in the tables indicate signaldirection:
■ → indicates DTE to DCE
■ ← indicates DCE to DTE
Figure B-4 V.35 Serial Cable Assembly
J1-7J1-8
DTR/DSR+DTR/DSR–
Twisted pair no. 4 →→
J2-11J2-29
DM+DM–
J1-3J1-4
DSR/DTR+DSR/DTR–
Twisted pair no. 2 ←←
J2-12J2-30
TR+TR–
J1-5J1-6
DCD/DCD+DCD/DCD–
Twisted pair no. 3 →→
J2-13J2-31
RR+RR–
J1-26J1-25
RxC/TxCE+RxC/TxCE–
Twisted pair no. 10 ←←
J2-17J2-35
TT+TT–
J1-15J1-16
Circuit_GNDCircuit_GND
Twisted pair no. 8 ——
J2-19J2-20
SGRC
1 Any pin not referenced is not connected.
Table B-7 EIA-449 DCE Cable Pinouts (DB-60 to DB-37) (continued)
60 Pin1 Signal Note Direction 37 Pin1 Signal
H19
75
J1-46J1-45J1-16J1-15
J1-1J1-30J1-31J1-60
Connectors are not to scale
60-pin connector (J1) 15-pin connector (J2)
J2-BJ2-DJ2-AJ2-C
J2-KKJ2-MMJ2-LLJ2-NN
34
Quad Serial NIM Cables B-11
Table B-8 V.35 DTE Cable Pinouts (DB-60 to Winchester-Type 34-Pin)
60 Pin1 Signal Note Direction 34 Pin1 Signal
J1-49J1-48
MODE_1GND
Shorting Group — — —
J1-50J1-51J1-52
MODE_0GNDMODE_DCE
Shorting Group — — —
J1-53J1-54J1-55J1-56
TxC/NILRxC_TxCERxD/TxDGND
Shorting Group — — —
J1-46 Shield_GND Single — J2-A Frame GND
J1-45Shield
Circuit_GND—
Twisted pair no. 12 ——
J2-BShield
Circuit GND—
J1-42Shield
RTS/CTS—
Twisted pair no. 9 →—
J2-CShield
RTS—
J1-35Shield
CTS/RTS—
Twisted pair no. 8 ←—
J2-DShield
CTS—
J1-34Shield
DSR/DTR—
Twisted pair no. 7 ←—
J2-EShield
DSR—
J1-33Shield
DCD/LL—
Twisted pair no. 6 ←—
J2-FShield
RLSD—
J1-43Shield
DTR/DSR—
Twisted pair no. 10 →—
J2-HShield
DTR—
J1-44Shield
LL/DCD–—
Twisted pair no. 11 →—
J2-KShield
LT—
J1-18J1-17
TxD/RxD+TxD/RxD–
Twisted pair no. 1 →→
J2-PJ2-S
SD+SD–
J1-28J1-27
RxD/TxD+RxD/TxD–
Twisted pair no. 5 ←←
J2-RJ2-T
RD+RD–
J1-20J1-19
TxCE/TxC+TxCE/TxC–
Twisted pair no. 2 →→
J2-UJ2-W
SCTE+SCTE–
J1-26J1-25
RxC/TxCE+RxC/TxCE–
Twisted pair no. 4 ←←
J2-VJ2-X
SCR+SCR–
J1-24J1-23
TxC/RxC+TxC/RxC–
Twisted pair no. 3 ←←
J2-YJ2-AA
SCT+SCT–
1 Any pin not referenced is not connected.
B-12 APPENDIX B: CABLING SPECIFICATIONS
Table B-9 V.35 DCE Cable Pinouts (DB-60 to Winchester-Type 34-Pin)
60 Pin1 Signal Note Direction 34 Pin1 Signal
J1-49J1-48
MODE_1GND
Shorting group — — —
J1-50J1-51
MODE_0GND
Shorting Group — — —
J1-53J1-54J1-55J1-56
TxC/NILRxC_TxCERxD/TxDGND
Shorting Group — — —
J1-46 Shield_GND Single — J2-A Frame GND
J1-45Shield
Circuit_GND—
Twisted pair no. 12 ——
J2-BShield
Circuit GND—
J1-35Shield
CTS/RTS—
Twisted pair no. 8 ←—
J2-CShield
RTS—
J1-42Shield
RTS/CTS—
Twisted pair no. 9 →—
J2-DShield
CTS—
J1-43Shield
DTR/DSR—
Twisted pair no. 10 →—
J2-EShield
DSR—
J1-44Shield
LL/DCD—
Twisted pair no. 11 →—
J2-FShield
RLSD—
J1-34Shield
DSR/DTR—
Twisted pair no. 7 ←—
J2-HShield
DTR—
J1-33Shield
DCD/LL—
Twisted pair no. 6 ←—
J2-KShield
LT—
J1-28J1-27
RxD/TxD+RxD/TxD–
Twisted pair no. 5 ←←
J2-PJ2-S
SD+SD–
J1-18J1-17
TxD/RxD+TxD/RxD–
Twisted pair no. 1 →→
J2-RJ2-T
RD+RD–
J1-26J1-25
RxC/TxCE+RxC/TxCE–
Twisted pair no. 4 ←←
J2-UJ2-W
SCTE+SCTE–
J1-22J1-21
NIL/RxC+NIL/RxC–
Twisted pair no. 3 →→
J2-VJ2-X
SCR+SCR–
J1-20J1-19
TxCE/TxC+TxCE/TxC–
Twisted pair no. 2 →→
J2-YJ2-AA
SCT+SCT–
1 Any pin not referenced is not connected.
Quad Serial NIM Cables B-13
X.21 DTE and DCESerial Cable Pinouts
(DB-15)
Figure B-5 shows the X.21 serial cable assembly. Table B-10 lists the DTE cable pinouts (Part Number ERMX21-CAB). Table B-11 lists the DCE cable pinouts (Part Number ERFX21-CAB). Arrows in the tables indicate signal direction:
■ → indicates DTE to DCE
■ ← indicates DCE to DTE
Figure B-5 X.21 Cable Assembly
H19
74
60-pin connector (J1) 15-pin connector (J2)
Connectors are not to scale
J2-8J2-15
J2-9J2-1
J1-46J1-45J1-16J1-15
J1-1J1-30J1-31J1-60
Table B-10 X.21 DTE Cable Pinouts (DB-60 to DB-15)
60 Pin1 Signal Note Direction 15 Pin1 Signal
J1-48J1-47
GNDMODE_2
Shorting Group — — —
J1-51J1-52
GNDMODE_DCE
Shorting Group — — —
J1-46 Shield_GND Single — J2-1 Shield GND
J1-11J1-12
TxD/RxD+TxD/RxD–
Twisted pair no. 3 →→
J2-2J2-9
Transmit+Transmit–
J1-9J1-10
RTS/CTS+RTS/CTS–
Twisted pair no. 2 →→
J2-3J2-10
Control+Control–
J1-28J1-27
RxD/TxD+RxD/TxD–
Twisted pair no. 6 ←←
J2-4J2-11
Receive+Receive–
J1-1J1-2
CTS/RTS+CTS/RTS–
Twisted pair no. 1 ←←
J2-5J2-12
Indication+Indication–
J1-26J1-25
RxC/TxCE+RxC/TxCE–
Twisted pair no. 5 ←←
J2-6J2-13
Timing+Timing–
J1-15Shield
Control_GND—
Twisted pair no. 4 — J2-8Shield
Control GND—
1 Any pin not referenced is not connected.
B-14 APPENDIX B: CABLING SPECIFICATIONS
Table B-11 X.21 DCE Cable Pinouts (DB-60 to DB-15)
60 Pin1 Signal Note Direction 15 Pin1 Signal
J1-48J1-47
GNDMODE_2
Shorting Group — — —
J1-46 Shield_GND Single — J2-1 Shield GND
J1-28J1-27
RxD/TxD+RxD/TxD–
Twisted pair no. 6 ←←
J2-2J2-9
Transmit+Transmit–
J1-1J1-2
CTS/RTS+CTS/RTS–
Twisted pair no. 1 ←←
J2-3J2-10
Control+Control–
J1-11J1-12
TxD/RxD+TxD/RxD–
Twisted pair no. 3 →→
J2-4J2-11
Receive+Receive–
J1-9J1-10
RTS/CTS+RTS/CTS–
Twisted pair no. 2 →→
J2-5J2-12
Indication+Indication–
J1-24J1-23
TxC/RxC+TxC/RxC–
Twisted pair no. 4 →→
J2-6J2-13
Timing+Timing–
J1-15Shield
Control_GND—
Twisted pair no. 5 ——
J2-8Shield
Control GND—
J1-48J1-47
GNDMODE_2
Shorting Group — — —
1 Any pin not referenced is not connected.
C
VIRTUAL CONFIGURATION REGISTERThe CoreBuilder™ 5000 Network Router Module has a 16-bit virtual configuration register, which is written into the nonvolatile random-access memory (NVRAM).
This appendix describes the virtual configuration register (VCR), the factory-default settings for the register, and the procedures for changing those settings.
This appendix contains the following sections:
■ VCR Tasks
■ VCR Bit Definitions
■ Changing VCR Settings
■ Enabling Booting From Flash Memory
VCR Tasks Use the virtual configuration register to perform the following tasks:
■ Set and display the configuration register value
■ Force the system into bootstrap mode
■ Select a boot source and default boot filename
■ Enable or disable the Break function
■ Control broadcast addresses
■ Set the console terminal baud rate
■ Load operating software from ROM
■ Enable booting from a TFTP (Trivial File Server Protocol) server
C-2 APPENDIX C: VIRTUAL CONFIGURATION REGISTER
VCR Bit Definitions Table C-1 defines each of the virtual configuration register memory bits.
To avoid confusion and possibly disabling the router, remember that valid register settings may be combinations of settings and not just the individual settings listed in Table C-1. For example, the factory-default value of 0x2102 is a combination of settings.
* The factory-default value for the configuration register is 0x2102. This value is acombination of settings (bit 13 = 0x2000, bit 8 = 0x0100, and bits 00 through 03 =0x0002).
Boot Field The lowest four bits of the virtual configuration register (bits 3, 2, 1, and 0) form the boot field. The boot field specifies a binary number. Table C-2 defines the boot field binary values.
Table C-1 Virtual Configuration Register Bit Values
Bit No.* Hex Value Meaning
00 to 03 0x0000 to 0x000F
Boot field
06 0x0040 Causes system software to ignore NVRAM contents
07 0x0080 OEM bit enabled
08 0x0100 Break function disabled
09 — Unused
10 0x0400 IP broadcast with all zeros
11 to 12 0x0800 to 0x1000
Engine management terminal baud rate
13 0x2000 Boot default ROM software if network boot fails
14 0x4000 IP broadcasts do not have net numbers
15 0x8000 Enable diagnostic messages and ignore NVRAM contents
Table C-2 Boot Field Values (Configuration Register Bits 00 to 03)
Bit Boot Field Meaning
0 0x1 Stays at the system bootstrap prompt.
1 0x2 Boots system image in system ROM.
2 to 3 0x4 to 0xF Specifies a default netboot filename and enables boot system commands that override the default netboot filename.
VCR Bit Definitions C-3
Setting Boot Field Values
To set the boot field values:
■ If you set a boot field value to 0, you must boot the operating system manually. To boot the operating system manually, enter the B command at the bootstrap prompt:
> b [tftp] flash IJ09140Z
For more information on the B command, refer to the Cisco Systems Router Products Configuration Guide.
■ If you set the boot field value to a value in the range of 0x2 through 0xF, and a valid system boot command is stored in the configuration file, then the router module boots the system software as directed by that value.
■ If you set the boot field to any other bit pattern, the router module uses the resulting number to form a default boot filename for netbooting (refer to Default Boot Filenames on page C-3).
In the following example, the virtual configuration register is set to boot the router module from Flash memory and to ignore the Break function at the next reboot of the router module:
router# configure terminalEnter configuration commands, one per line.Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Zconfig-register 0x102boot system flash IJ09140Z^Zrouter#
Default Boot Filenames
The network server creates a default boot filename as part of the automatic configuration process and stores the binary value in the virtual configuration register.
To form the boot filename, the server starts with cisco and links the octal equivalent of the boot field number, a hyphen, and the processor-type name. Table C-3 lists the default boot filenames or actions for the processor.
C-4 APPENDIX C: VIRTUAL CONFIGURATION REGISTER
A boot system configuration command in the router module configuration in NVRAM overrides the default netboot filename.
Break Function Bit 8 controls the way the server interprets the engine management terminal Break key. The server interprets the Break key in the following ways:
■ Setting bit 8 (the factory default) causes the processor to ignore the console Break key.
■ Clearing bit 8 causes the processor to interpret the Break key as a command to force the system into the bootstrap monitor, which halts normal operation. A Break command can be sent during the first 60 seconds of a system reboot, regardless of the configuration settings.
Table C-3 Default Boot Filenames
Action/Filename Bit 3 Bit 2 Bit 1 Bit 0
bootstrap mode 0 0 0 0
ROM software 0 0 0 1
cisco2-4500 0 0 1 0
cisco3-4500 0 0 1 1
cisco4-4500 0 1 0 0
cisco5-4500 0 1 0 1
cisco6-4500 0 1 1 0
cisco7-4500 0 1 1 1
cisco10-4500 1 0 0 0
cisco11-4500 1 0 0 1
cisco12-4500 1 0 1 0
cisco13-4500 1 0 1 1
cisco14-4500 1 1 0 0
cisco15-4500 1 1 0 1
cisco16-4500 1 1 1 0
cisco17-4500 1 1 1 1
VCR Bit Definitions C-5
Internet ProtocolBroadcast Address
Bit 10 controls the host portion of the Internet Protocol (IP) broadcast address as follows:
■ Setting bit 10 causes the processor to use all zeros.
■ Clearing bit 10 (the factory default) causes the processor to use all ones.
Bit 10 interacts with bit 14, which controls the network and subnet portions of the broadcast address. Table C-4 lists the combined effect of bits 10 and 14.
Engine ManagementTerminal Baud Rate
Bits 11 and 12 determine the baud rate of the engine management terminal.
Table C-5 lists the bit settings for the four available baud rates. The factory-set default baud rate is 9600.
Bootload FailureResponse
Bit 13 determines the server response to a bootload failure as follows:
■ Setting bit 13 causes the server to load operating software from ROM after five unsuccessful attempts to load a boot file from the network.
■ Clearing bit 13 causes the server to continue attempting to load a boot file from the network indefinitely. The default setting for bit 13 is cleared.
Table C-4 Broadcast Address Destination Settings
Bit 14 Bit 10 Address (<net> <host>)
Off Off <ones> <ones>
Off On <zeros> <zeros>
On On <net> <zeros>
On Off <net> <ones>
Table C-5 Engine Management Terminal Baud Rate Settings
Baud Bit 12 Bit 11
9600 0 0
4800 0 1
1200 1 0
2400 1 1
C-6 APPENDIX C: VIRTUAL CONFIGURATION REGISTER
NVRAM Disable Bit 15 determines whether or not the server uses the contents of NVRAM as follows:
■ Setting bit 15 causes the server to ignore the configuration file in NVRAM and to enable diagnostic messages.
■ Clearing bit 15 causes the server to use the contents of NVRAM.
Changing VCR Settings
To change the values in the configuration register while running the system software:
1 Enter the ENABLE command and your password to enter the privileged level.
router> enablePassword:router#
2 At the privileged-level system prompt (router#), enter the CONFIGURE TERMINAL command. The system displays information about the configuration commands.
router# configure terminalEnter configuration commands, one per line.Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Z
3 To set the contents of the configuration register, enter the CONFIG-REGISTER command, where yyyy is a hexadecimal number preceded by 0x (refer to the Note on page C-2)
config-register 0xyyyy
4 Exit configuration mode by pressing Ctrl-Z. The new value settings are saved to memory. However, the new settings do not take effect until the system software reloads when the router module engine reboots.
5 To display the configuration register value currently in effect and the value that will be used at the next reload, enter the exec mode SHOW VERSION command. The value appears on the last line of the screen display as in the following example:
Configuration register is 0x142 (will be 0x102 at next reload)
Enabling Booting From Flash Memory C-7
6 Reboot the router module engine. The new value takes effect.
Configuration register changes take effect only when the server restarts. To restart the server, power off and then power on the router module or issue a reload command from the engine management terminal.
Enabling Booting From Flash Memory
To enable booting from Flash memory, set configuration register bits 3, 2, 1, and 0 to a value between 2 and 15.
To enter configuration mode, while in the system software image specify a Flash filename from which to boot. For example:
router# configure terminalEnter configuration commands, one per line.Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Zboot system flash IJ09140Z
To disable the Break key and enable the BOOT SYSTEM FLASH command, enter the CONFIG-REGISTER command with the value shown in the following example:
router# configure terminalEnter configuration commands, one per line.Edit with DELETE, CTRL/W, and CTRL/U; end with CTRL/Zconfig-reg 0x2102^Zrouter#
D
FDDI PRECAUTIONSThe information in this appendix is a requirement of the CDRH division of the FDA. This appendix contains the following sections:
■ FDDI Laser Safety Information
■ Processing
FDDI Laser Safety Information
The FDDI components in the CoreBuilder™ 5000 Network Router Module comply with the following standards for CLASS 1 LASER safety:
■ 21 CRF 1040.10 and 1040.11 U.S. Department of Health and Human Services (FDA)
■ IEC Publications 825 (International Electrotechnical Commission)
■ CENELEC EN 60825 (European Committee for Electrotechnical Standardization)
When operated within its performance specification limits, the laser transceiver output meets the CLASS 1 accessible emission limit of all three standards. Class 1 levels of laser radiation are not considered to be hazardous.
The use of optical instruments increases eye hazard. When viewing the output optical port the power must be removed from the transmitter section.
The label in Figure D-1 satisfies the safety certification requirements for the CoreBuilder 5000 Network Router Module.
D-2 APPENDIX D: FDDI PRECAUTIONS
Figure D-1 Required Class 1 Laser Product Label
Processing The Laser transceiver may be wave soldered and aqueous rinsed so long as the process plug, provided with each unit, is properly installed on the units optical port. The transceiver case may not be exposed to solvents such as 1-1-1 - trichloroethane, acetone, methyl ethyl ketone, or trichloroethylene. The transceiver pins may be wave-soldered at240 oC for up to 10 seconds. The transceiver case deformation temperature is 160 oC.
CLASS 1 LASER PRODUCT
IEC 825, Class 1 LED Device. For connection only to Class 1 LED Devices.
E
TECHNICAL SUPPORT3Com provides 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, access 3Com Corporation’s World Wide Web site as described below.
This appendix describes:
■ Online Technical Services
■ Support From Your Network Supplier
■ Support From 3Com Corporation
■ Returning Products for Repair
■ Accessing the 3Com MIB
■ Contacting 3Com Technical Publications
Online Technical Services
3Com offers worldwide product support 24 hours a day, 7 days a week, through the following online systems:
■ World Wide Web Site
■ 3Com Bulletin Board Service
■ 3ComFacts Automated Fax Service
■ 3ComForum on CompuServe Online Service
E-2 APPENDIX E: TECHNICAL SUPPORT
World Wide Web Site Access the latest networking information on 3Com Corporation’s World Wide Web site by entering our URL into your Internet browser:
http://www.3Com.com/
This service features news and information about 3Com products, customer service and support, 3Com Corporation’s latest news releases, NetAge Magazine, and more.
3Com Bulletin BoardService
3ComBBS contains patches, software, and drivers for all 3Com products, as well as technical articles. This service is available through modem or ISDN 24 hours a day, 7 days a week.
Access by Analog Modem
To reach the service by modem, set your modem to 8 data bits, no parity, and 1 stop bit. Call the telephone number nearest you:
Access by Digital Modem
ISDN users can call 3ComBBS using a digital modem for fast access up to 56 Kbps. To access 3ComBBS using ISDN, use the following number:
408 654 2703
Country Data Rate Telephone Number
Australia up to 14400 bps 61 2 9955 2073
Brazil up to 14400 bps 55 11 547 9666
France up to 14400 bps 33 1 6986 6954
Germany up to 28800 bps 4989 62732 188
Hong Kong up to 14400 bps 852 2537 5608
Italy (fee required) up to 14400 bps 39 2 27300680
Japan up to 14400 bps 81 3 3345 7266
Mexico up to 28800 bps 52 5 520 7853
P. R. of China up to 14400 bps 86 10 684 92351
Singapore up to 14400 bps 65 534 5693
Taiwan up to 14400 bps 886 2 377 5840
U.K. up to 28800 bps 44 1442 438278
U.S.A. up to 28800 bps 1 408 980 8204
Online Technical Services E-3
3ComFactsAutomated Fax
Service
3Com Corporation’s interactive fax service, 3ComFactsSM, provides data sheets, technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week.
Call 3ComFacts using your Touch-Tone telephone using one of these international access numbers:
Local access numbers are available within the following countries:
3ComForum onCompuServe Online
Service
3ComForum is a CompuServe-based service containing patches, software, drivers, and technical articles about 3Com products, as well as a messaging section for peer support. To use 3ComForum, you need a CompuServe® account.
To use 3ComForum:
1 Log on to CompuServe.
2 Type go threecom
3 Press Return to view the 3ComForum main menu.
Country Telephone Number
Hong Kong 852 2537 5610
U.K. 44 1442 278279
U.S.A. 1 408 727 7021
CountryTelephone Number Country
Telephone Number
Australia 1 800 123853 Netherlands 06 0228049
Belgium 0800 71279 Norway 800 11062
Denmark 800 17319 Portugal 0505 442 607
Finland 98 001 4444 Russia (Moscow only) 956 0815
France 05 90 81 58 Spain 900 964 445
Germany 0130 81 80 63 Sweden 020 792954
Italy 1678 99085 U.K. 0800 626403
E-4 APPENDIX E: TECHNICAL SUPPORT
Support From Your Network Supplier
If additional assistance is required, contact your network supplier. Several 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.
If you contact your network supplier for assistance, have the following information ready:
■ Diagnostic error messages
■ A list of system hardware and software, including revision levels
■ Details about recent configuration changes, if applicable
If you are unable to contact your network supplier, refer to the following section on how to contact 3Com.
Support From 3Com Corporation E-5
Support From 3Com Corporation
If you are unable to receive support from your network supplier, technical support contracts are available from 3Com.
Contact your local 3Com sales office to locate your authorized service provider using one of the following numbers:
Regional Sales Office Telephone Number Regional Sales Office Telephone Number
3Com CorporationU.S.A.
3Com ANZAEastWest
3Com Asia LimitedChina
Hong KongIndiaIndonesiaKoreaMalaysiaSingaporeTaiwanThailand
3Com Benelux B.V.BelgiumNetherlands
3Com CanadaCalgaryMontrealOttawaTorontoVancouver
3Com France
3Com GmbHAustriaCzech and Slovak RepublicsGermany
HungaryPolandSwitzerland
800 NET 3Com or1 408 764 5000
61 2 9937 500061 3 9866 8022
86 10 68492 568 (Beijing)86 21 6374 0220 Ext 6115 (Shanghai)852 2501 111191 11 644 397462 21 523 918182 2 319 471160 3 732 791065 538 9368886 2 377 5850662 231 8151 4
32 725 020231 30 6029700
403 265 3266514 683 3266613 566 7055416 498 3266604 434 3266
33 1 69 86 68 00
43 1 513432342 2 21845 80049 30 3498790 (Berlin)49 89 627320 (Munich)36 1 250 83 4148 22 645135141 31 996 14 14
3Com Ireland
3Com Japan
3Com Latin AmericaArgentinaBrazilChileColombiaMexicoPeruVenezuela
3Com MediterraneoItaly
3Com Middle East
3Com Nordic ABDenmarkFinlandNorwaySweden
3Com Russia
3Com South Africa
3Com UK Limited
353 1 820 7077
81 3 3345 7251
54 1 312 326655 11 546 086956 2 633 924257 1 629 411052 5 520 784151 1 221 539958 2 953 8122
39 2 253011 (Milan)39 6 5279941 (Rome)
971 4 349049
45 39 27 85 00358 0 435 420 6747 22 18 40 0346 8 632 56 00
007 095 2580940
27 11 807 4397
44 131 2478558 (Edinburgh)44 161 8737717 (Manchester)44 1628 897000 (Marlow)
E-6 APPENDIX E: TECHNICAL SUPPORT
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 are returned to the sender unopened, at the sender’s expense.
To obtain an RMA number, call or fax:
Accessing the 3Com MIB
The 3Com Management Information Base (MIB) describes commands that enable you to manage 3Com SNMP-based products. The MIB is available over the Internet on an anonymous FTP server. Updates to these MIBs are released as new 3Com products are introduced.
To access Internet versions:
1 FTP to ftp.3com.com (151.104.9.65).
2 Enter the login name anonymous .
3 Enter your full Internet e-mail address as the password(for example, [email protected] ).
4 Change to the /pub/mibs directory using the command cd/pub/mibs .
5 Read the readisd.txt file to determine the MIB or MIBs you need to manage your 3Com products.
6 To view the 3Com MIB, OID, or schema entries, enter the ls command.
■ To pause the display, press Ctrl+S.
■ To continue the display, press Ctrl+Q.
7 Copy the MIB, OID, or schema files to your current directory using the appropriate command (for example, get isd.mib ).
8 Exit the FTP session using the quit command.
Country Telephone Number Fax Number
U.S.A. and Canada 1 800 876 3266, option 2 408 764 7120
Latin America 1 408 326 7801 408 764 7120
Europe, South Africa and Middle East
44 1442 438125 44 1442 435822
Outside Europe, U.S.A., and Canada
1 408 326 7804 1 408 764 7120
Contacting 3Com Technical Publications E-7
Contacting 3Com Technical Publications
If you have comments or questions on 3Com Technical Publications documents, contact the Technical Publications group by fax at (508) 229-1551.
02/06/97
INDEX
Numerics3Com Bulletin Board Service (3ComBBS) E-23Com parameters 3-5 to 3-63Com sales offices E-53Com URL E-23ComFacts E-33ComForum E-3
AATM
connecting the NIM 2-12LEDs 4-9
Audience of Manual 1Auxiliary port
connections 3-3
Bb (boot) command C-3Base model 1-3Baud-rate settings C-5Boot field C-4Boot System command 5-5, C-4Boot System Flash command C-7Booting
from Flash memory C-7Bootload-failure response C-5Break (interrupt) command C-4bulletin board service E-2
CCable
auxiliary port B-2console port B-2DCE 5-2DTE 5-2EIA/TIA-232 DTE/DCE B-5EIA/TIA-449 DTE/DCE B-8EIA-530 DTE B-4multi-mode fiber-optic 2-7single mode fiber-optic 2-8V.35 DTE/DCE B-10X.21 DTE/DCE B-13
Cisco commandsb (boot) C-3Boot System 5-5, C-4Boot System Flash C-7Break (interrupt) C-4Config-register C-3, C-6, C-7Configure Terminal C-3, C-6Enable 5-5, C-6Flash-related C-2i (initialize) 5-4o/r (reset) 5-4Reload C-7Show Configuration 5-5Show Version C-6
Cisco parameters 3-3 to 3-5CiscoWorks 1-9Commands
Ciscosee Cisco commands
DMMsee DMM commands
Compression 1-9CompuServe E-3Config-register command C-3, C-6, C-7Configuration 3-2 to 3-6
3Com parameters 3-5 to 3-6Cisco NIM connections 3-3Cisco parameters 3-3 to 3-5displaying 4-10 to 4-13network connection 3-5NVRAM 3-2overview 3-1ring speed 3-4, 3-5unmanaged hub 3-2
Configure Terminal command C-3, C-6Connections
ATM 2-12Auxiliary port 3-3console port 3-2FDDI MM, DAS 2-7FDDI MM, SAS 2-8FDDI SM, DAS 2-10management terminal 3-2NIM 2-7 to 2-11Optical bypass switch 2-9Quad Serial 2-11Quad Serial model 2 - 1 1
2 INDEX
Connectorauxiliary port 3-3console port 3-2FC type 2-10MIC type 2-7
Console portconnections 3-2settings C-5troubleshooting 5-3
conventionstext, About This Guide 3
CoreBuilder 5000 Network Router Modulearchitecture 1-2configuration 3-2 to 3-6FDDI support 1-6functions 1-1hot swap capability 1-10models 1-3network control 1-9network management 1-9precautionary procedures 2-1product description 1-1purposes 1-1quick installation 2-2reliability 1-10typical applications 1-4, 1-5unpacking 2-2WAN support 1-6
DDAS
Multi-mode 2-7single mode 2-10
Data compression 1-9DCE cable 5-2Desktop plus IBM software feature set 1-7Desktop software feature set 1-7Dial-on-demand routing 1-9DIP switch
restoring base board positions 2-4DMM commands
SHOW MODULE 4-11SHOW MODULE VERBOSE 4-11SHOW PORT 4-11SHOW PORT VERBOSE 4-12SHOW VERSION 5-4
DTE cable 5-2Dual Attachment Station
see DAS
EEIA/TIA-232 DTE/DCE cable pinouts B-5EIA/TIA-449 DTE/DCE cable pinouts B-8EIA-530 DTE cable pinouts B-4Electrical specifications A-3Electrostatic discharge
precautionary procedures 2-1Enable command 5-5, C-6Enterprise software feature set 1-7Environmental specifications A-3
Ffax service. See 3ComFactsFC connector 2-10FCC notice iiFDDI
connecting the MM, DAS model 2-7connecting the MM, SAS model 2-8connecting the Quad Serial model 2-11connecting the SM, DAS model 2-10laser safety information D-1multi-mode fiber 1-6precautions D-1single-mode fiber 1-6supported interfaces 1-6
FDDI MM, DAS model 1-3FDDI MM, SAS model 1-3FDDI SM, DAS model 1-3Filenames
default for netbooting C-4Flash memory
booting from C-7Flash-related commands C-2
GGeneral specifications A-2
HHardware components 1-2Hot swap capability 1-10, 2-5
INDEX 3
Ii (initialize) command 5-4Installation
grounding techniques 2-1hot swap capability 2-5preparations 2-4procedure 2-5quick 2-2
InterfacesCisco 3-1relation to 3Com ports 3-1
Internet Protocolsee IP
Interruptsee Break (interrupt) command
IP broadcast addressIP/IPX software feature set 1-7
JJumper plugs
restoring base board positions 2-4restoring CPU board positions 2-5
KKey, Break (interrupt) C-4
LLaser safety D-1
certification label D-1LEDs
ATM 4-9common 4-2FDDI 4-6monitoring 4-1 to 4-8Quad Serial 4-7, 4-9
MMechanical specifications A-3Memory specifications A-2MIBs
3Com E-6MIC connector 2-7Models 1-3
base 1-3FDDI MM, DAS 1-3FDDI MM, SAS 1-3FDDI SM, DAS 1-3Quad Serial 1-3
Multi-mode fiber FDDI interface 1-6
NNetboot C-4
default filenames C-4Network
control 1-9Network connection
configuration 3-5limitations 3-6
Network Interface Connectionssee NIM
Network management 1-9attaching a terminal 3-2TELNET 1-9
network supplier support E-4NIM
architecture 3-3ATM 2-12configuration 3-3connections 2-7 to 2-11FDDI MM, DAS 2-7FDDI MM, SAS 2-10FDDI SM, DAS 2-8Quad Serial 2-11
Non-volatile random access memorysee NVRAM
NVRAMCisco C-6configuration 3-2
Oo/r (reset) command 5-4Online technical services E-1Operating malfunctions 5-3, 5-4Optical bypass switch 2-9
PParameters
Cisco 3-3 to 3-5Password
recovering 5-4Pinouts
auxiliary port cable B-2console port cable B-2EIA/TIA-232 DTE/DCE serial cable B-5EIA/TIA-449 DTE/DCE serial cable B-8EIA-530 DTE serial cable B-4V.35 DTE/DCE serial cable B-10X.21 DTE/DCE serial cable B-13
Ports3Com 3-1relation to Cisco interfaces 3-1
Precautionary procedures 2-1
4 INDEX
Protocol translation 1-7Protocols supported
FDDI 1-6WAN 1-6
QQuad Serial model 1-3QuadSerial
connecting 2-11
RRecovering a lost password 5-4Reliability 1-10Reload command C-7returning products for repair E-6Ring Speed
configuring 3-4, 3-5Routing
dial-on-demand 1-9
SSAS
Multi-mode 2-8Show Configuration Cisco command 5-5SHOW MODULE command 4-11SHOW MODULE VERBOSE command 4-11SHOW PORT command 4-11SHOW PORT Status field 4-13SHOW PORT VERBOSE command 4-12Show Version Cisco command C-6SHOW VERSION command 5-4Simple Network Management Protocol
see SNMPSimple Network Management Protocol (SNMP)
commands E-6Single Attachment Station
see SASSingle mode fiber FDDI interface 1-6SNMP 1-9SNMP. See Simple Network Management ProtocolSoftware
loading from Flash memory C-7Software feature sets 1-7 to 1-8
Desktop 1-7Desktop plus IBM 1-7Enterprise 1-7IP/IPX 1-7
Specificationselectrical A-3environmental A-3general A-2mechanical A-3memory A-2
Systemsoftware C-7
Ttechnical support E-1
3Com URL E-2bulletin board service E-2fax service E-3network suppliers E-4product repair E-6using CompuServe E-3
TELNET 1-9verifying port configurations 5-3
Troubleshootingconsole port 5-3network connection 5-2operating malfunctions 5-3, 5-4software 5-1startup 5-1WAN connections 5-2
Typical applicationsFDDI model 1-5Quad Serial model 1-4
UUnpacking 2-2URL E-2
VV.35 DTE/DCE cable pinouts B-10Virtual Configuration Register 5-5
bit definitions C-2 to C-6boot field C-4changing C-3, C-6
WWorld Wide Web E-2WWW E-2
XX.21 DTE/DCE cable pinouts B-13
3Com Corporation LIMITED WARRANTY
For purposes of this warranty, the CoreBuilder 5000 Network Router Module is considered an Internetworking product.
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:
If a product does not operate as warranted above during the applicable warranty period, 3Com shall, at its option and expense, repair the defective product or part, deliver to Customer an equivalent product or part to replace the defective item, or refund to Customer the purchase price paid for the defective product. All products that are replaced will become the property of 3Com. Replacement products may be new or reconditioned. Any replaced or repaired product or part has a 90-day warranty or the remainder of the initial warranty period, whichever is longer.
3Com shall not be responsible for any software, firmware, information, or memory data of Customer contained in, stored on, or integrated with any products returned to 3Com for repair, whether under warranty or not.
SOFTWARE 3Com warrants that the software programs licensed from it will perform in substantial conformance to the program specifications therefor for a period of 90 days from the date of purchase from 3Com or its Authorized Reseller. 3Com warrants the media containing software against failure during the warranty period. No updates are provided. 3Com’s sole obligation with respect to this express warranty shall be (at 3Com’s discretion) to refund the purchase price paid by Customer for any defective software products, or to replace any defective media with software which substantially conforms to 3Com’s applicable published specifications. Customer assumes responsibility for the selection of the appropriate applications program and associated reference materials. 3Com makes no warranty or representation that its software products will work in combination with any hardware or applications software products provided by third parties, that the operation of the software products will be uninterrupted or error free, or that all defects in the software products will be corrected. For any third-party products listed in the 3Com software product documentation or specifications as being compatible, 3Com will make reasonable efforts to provide compatibility, except where the noncompatibility is caused by a “bug” or defect in the third party’s product.
STANDARD WARRANTY SERVICE
Standard warranty service for hardware products may be obtained by delivering the defective product, accompanied by a copy of the dated proof of purchase, to 3Com’s Corporate Service Center or to an Authorized 3Com Service Center during the applicable warranty period. Standard warranty service for software products may be obtained by telephoning 3Com’s Corporate Service Center or an Authorized 3Com Service Center, within the warranty period. Products returned to 3Com’s Corporate Service Center must be pre-authorized by 3Com with a Return Material Authorization (RMA) number marked on the outside of the package, and sent prepaid, insured, and packaged appropriately for safe shipment. The repaired or replaced item will be shipped to Customer, at 3Com’s expense, not later than 30 days after receipt of the defective product by 3Com.
WARRANTIES EXCLUSIVE IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER’S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM’S OPTION. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS, OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND SATISFACTORY QUALITY. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, OR USE OF ITS PRODUCTS.
Internetworking products 1 year
Network adapters Lifetime
Ethernet stackable hubs and Unmanaged Ethernet fixed port repeaters Lifetime* (1 year if not registered)
*Power supply and fans in the stackable hubs and unmanaged repeaters 1 year
Other hardware products 1 year
Spare parts and spares kits 90 days
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 TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR DATA, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM’S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.
Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers, so the above limitations and exclusions may be limited in their application to you. This warranty gives you specific legal rights which may vary depending on local law.
GOVERNING LAW This Limited Warranty shall be governed by the laws of the state of California.
3Com Corporation, 5400 Bayfront Plaza, Santa Clara, CA 95052-8145 (408) 764-5000
10/20/96