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SW3800.BK Page i Tuesday, May 5, 1998 5:20 PM
®
SuperStack II
®
Switch 3800
User Guide
http://www.3com.com/
Part No. DUA1691-0AAA01
100004-00 Rev. 01
Published April 1998
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SW3800.BK Page ii Tuesday, May 5, 1998 5:20 PM 3Com Corporation Copyright © 3Com Corporation, 1998. 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, 5400 Bayfront Plaza transformation, or adaptation) without permission from 3Com Technologies. Santa Clara, California 3Com Technologies reserves the right to revise this documentation and to make changes in content fr
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SW3800.BK Page iii Tuesday, May 5, 1998 5:20 PM VCCI Statement Information To The User If this equipment does cause interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: n Reorient the receiving antenna. n Relocate the equipment with respect to the receiver. n Move the equipment away from the receiver. n Plug the equipment
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SW3800.BK Page iv Tuesday, May 5, 1998 5:20 PM iv
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SW3800.BK Page v Tuesday, May 5, 1998 5:20 PM CONTENTS ABOUT THIS GUIDE Introduction 1 Terminology 1 Finding Information in This Guide 2 Conventions 3 Command Syntax Symbols 4 Line-Editing Commands 5 Related Publications 5 1 SWITCH 3800 OVERVIEW About the Switch 3800 1-1 Summary of Features 1-1 Port Connections 1-3 Full-duplex 1-3 Port Redundancy 1-3 Load Sharing 1-4 Switch Operation 1-4 Virtual LANs (VLANs) 1-4 Pri
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SW3800.BK Page vi Tuesday, May 5, 1998 5:20 PM 2 INSTALLATION AND SETUP Following Safety Information 2-1 Determining the Switch 3800 Location 2-1 Configuration Rules for Ethernet 2-2 Installing the Switch 3800 2-2 Rack Mounting 2-2 Free-Standing 2-3 Stacking the Switch and Other Devices 2-4 Connecting Equipment to the Console Port 2-4 Powering-up the Switch 2-6 Checking the Installation 2-6 Power On Self-Test (POST) 2-6 Logging
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SW3800.BK Page vii Tuesday, May 5, 1998 5:20 PM Configuring SNMP Settings 3-10 Displaying SNMP Settings 3-12 Resetting and Disabling SNMP 3-12 Checking Basic Connectivity 3-12 Ping 3-12 Traceroute 3-13 Configuring Ports 3-13 Enabling and Disabling Ports 3-13 Configuring Autonegotiation 3-14 10/100 port settings 3-14 Gigabit port settings 3-14 Load Sharing 3-15 Configuring Load Sharing 3-15 Verifying the Load Sharing Configuration 3-16
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SW3800.BK Page viii Tuesday, May 5, 1998 5:20 PM Port Commands 4-12 PACE Commands 4-13 STP Commands 4-14 Basic IP Commands 4-16 IP ARP Commands 4-17 IP Route Table Commands 4-18 ICMP Commands 4-18 RIP Commands 4-20 Logging Commands 4-22 Configuration and Image Commands 4-23 5 VIRTUAL LANS (VLANS) Overview of Virtual LANs 5-1 Benefits 5-1 Types of VLANs 5-2 Port-Based VLANs 5-2 Expanding Port-Based VLANs Across Switche
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SW3800.BK Page ix Tuesday, May 5, 1998 5:20 PM Configuring FDB Entries 6-3 FDB Configuration Example 6-3 Displaying FDB Entries 6-3 Removing FDB Entries 6-4 7 SPANNING TREE PROTOCOL (STP) Overview of the Spanning Tree Protocol 7-1 How STP Works 7-3 Initialization 7-3 Stabilization 7-4 Reconfiguration 7-4 Spanning Tree Domains 7-4 Defaults 7-5 STP Configurations 7-6 STP Configurations to Avoid 7-8 Creating STP Domains 7-9 En
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SW3800.BK Page x Tuesday, May 5, 1998 5:20 PM 9 STATUS MONITORING AND STATISTICS Status Monitoring 9-1 Port Statistics 9-4 Port Errors 9-6 Switch Logging 9-7 Local Logging 9-8 Real-time Display 9-8 Remote Logging 9-9 Logging Commands 9-10 RMON 9-11 About RMON 9-11 About the RMON Groups 9-12 Statistics 9-12 History 9-12 Alarms 9-13 Events 9-13 Benefits of RMON 9-13 Improving Efficiency 9-13 Allowin
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SW3800.BK Page xi Tuesday, May 5, 1998 5:20 PM Fiber Optic Ports A-3 Lithium Battery A-4 L’information de Sécurité Importante A-4 Power A-5 Cordon électrique A-6 Fuse A-6 Ports pour fibres optiques A-7 Batterie au lithium A-7 Wichtige Sicherheitsinformationen A-8 Power A-8 Power Cord A-9 Fuse A-9 Faseroptikanschlüsse - Optische Sicherheit A-10 Lithiumbatterie A-11 B TECHNICAL SPECIFICATIONS C TROUBLESHOOTING LEDs
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SW3800.BK Page xii Tuesday, May 5, 1998 5:20 PM GLOSSARY INDEX 3COM CORPORATION LIMITED WARRANTY xii
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SW3800.BK Page 1 Tuesday, May 5, 1998 5:20 PM ABOUT THIS GUIDE About This Guide provides an overview of this guide, describes guide conventions, tells you where to look for specific information and lists other publications that may be useful. Introduction This guide provides the required information to install and configure ® the SuperStack II Switch 3800 (3C16910). This guide is intended for use by network administrators who are responsible for installing and setting up network equi
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SW3800.BK Page 2 Tuesday, May 5, 1998 5:20 PM 2 ABOUT THIS GUIDE Finding This table shows where to find specific information in this guide. Information in This Guide Task Location Learning concepts Chapter 1, “Switch 3800 Overview” Installing the Switch 3800 Chapter 2, “Installation and Setup” Appendix A, “Safety Information” Setting up user accounts Chapter 3, “Accessing The Switch” Understanding the Chapter 4, “Commands” Command-Line Interface Creating a VLAN Chapter 5, “Virtual LANs (VLANs)
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SW3800.BK Page 3 Tuesday, May 5, 1998 5:20 PM Conventions 3 Conventions Table 1 and Table 2 list conventions that are used throughout this guide. Table 1 Notice Icons Icon Notice Type Alerts you to... Note Important features or instructions Caution Risk of personal injury, system damage, or loss of data Warning Risk of severe personal injury Table 2 Text Conventions Convention Description Screen displays This typeface represents information as it appears on the screen. The words “ente
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SW3800.BK Page 4 Tuesday, May 5, 1998 5:20 PM 4 ABOUT THIS GUIDE Command Syntax You may see a variety of symbols shown as part of the command Symbols syntax. These symbols explain how to enter the command, and you do not type them as part of the command itself. Table 3 summarizes command syntax symbols. Table 3 Command Syntax Symbols Symbol Description angle brackets < > Enclose a variable or value. You must specify the variable or value. For example, in the syntax config vlan ip
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SW3800.BK Page 5 Tuesday, May 5, 1998 5:20 PM Line-Editing Commands 5 Line-Editing Table 4 describes the line-editing commands available using the Commands command-line interface. Table 4 Line-Editing Commands Command Description Backspace Deletes character to the left of cursor and shifts remainder of line to left. Delete or [Ctrl] + D Deletes character under cursor and shifts remainder of line to left. [Ctrl] + K Deletes characters from under cursor to the end of the line. Insert Toggle
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SW3800.BK Page 6 Tuesday, May 5, 1998 5:20 PM 6 ABOUT THIS GUIDE
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SW3800.BK Page 1 Tuesday, May 5, 1998 5:20 PM SWITCH 3800 OVERVIEW 1 This chapter describes the following: n Switch 3800 features n How to use the Switch 3800 in your network configuration n Switch 3800 front view n Switch 3800 rear view n Factory default settings About the Network managers are currently faced with the challenge of creating Switch 3800 networks that can provide high-speed and high performance to serve the needs of today’s network users. ® Part of the 3Com SuperStack II range
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SW3800.BK Page 2 Tuesday, May 5, 1998 5:20 PM 1-2 CHAPTER 1: SWITCH 3800 OVERVIEW n Virtual LANs (VLANs) n Support for 64 VLANs on a single Switch 3800 n Support for IEEE 802.1Q tagging n Controls traffic (including broadcasts) n Provides extra security n Protocol-sensitive filtering for VLANs n Recognition of the Priority Access Control Enabled (PACE) bit set by ® 3Com Etherlink adapters and the other devices that support PACE n Responds to 802.3x flow-control messages n Autonegotiation to IEE
