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®
SuperStack II Switch 1000
®
User Guide
Agent Software Version 3.1
http://www.3com.com/
Document No. DUA1690-0AAA05
Published June 1997
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■ ■ ■ 3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145 Copyright © 3Com Ireland, 1997. All rights reserved. No part of this Unless otherwise indicated, 3Com registered trademarks are registered in documentation may be reproduced in any form or by any means or used to the United States and may or may not be registered in other countries. make any derivative work (such as translation, transformation, or 3Com, AccessBuilder, Boundary Routing, CardFacts, LanScanner, adap
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CONTENTS Switch 1000 on Your Network 1-6 ABOUT THIS GUIDE Server Connections 1-6 Introduction 1 Network Configuration Examples 1-6 How to Use This Guide 1 Network Segmentation I 1-7 Conventions 2 Network Segmentation II 1-8 Related Documentation 2 Desktop Switching 1-9 Unit Overview — Front 1-10 10BASE-T Ports 1-11 1 GETTING STARTED 100BASE-TX Port 1-11 About the Switch 1000 1-1 LEDs 1-11 Summary of Features 1-1 Unit Overview — Rear 1-12 Port Connections 1-2 Power Socket 1-13 10BASE-T Ports 1-2
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Configuration Rules for Fast Ethernet 2-2 4 MANAGING THE SWITCH 1000 Configuration Rules with Full Duplex 2-2 Setting Up Users 4-2 Installing the Switch 1000 2-4 Creating a New User 4-3 Rack Mounting 2-4 Deleting a User 4-4 Stacking the Switch and Other Units 2-4 Editing User Details 4-5 Wall Mounting 2-5 Assigning Local Security 4-6 Powering-up the Switch 2-6 Choosing a Switch Management Level 4-7 Connecting a Redundant Power System (RPS) 2-6 Setting Up the Switch Unit 4-9 Connecting Equipment
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How VLANs Ease Change and Movement 5-2 Enabling STP on the Switch 5-17 How VLANs Control Broadcast Traffic 5-2 Configuring STP on the Switch 5-18 How VLANs Provide Extra Security 5-2 Configuring the STP Parameters of VLANs 5-18 An Example 5-2 Configuring the STP Parameters of Ports 5-20 VLANs and the Switch 5-3 RMON 5-22 The Default VLAN and Moving Ports From the Default What is RMON? 5-22 VLAN 5-3 About the RMON Groups 5-23 Connecting VLANs to a Router 5-3 Statistics 5-23 Connecting Common VLA
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Fault Log 6-9 Modem Cable D-2 Remote Polling 6-10 RJ45 Pin Assignments D-2 A SAFETY INFORMATION E SWITCH 1000 TECHNICAL SPECIFICATIONS Important Safety Information A-1 Power Supply and Fuse A-3 F TECHNICAL SUPPORT Sockets for Redundant Power System (RPS) A-3 Online Technical Services F-1 RJ45 Ports A-3 World Wide Web Site F-1 Fiber Ports A-3 3Com Bulletin Board Service F-1 L’information de Sécurité Importante A-4 Access by Analog Modem F-1 La Source de Courant et Le Fusible A-5 Access by Digital
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ABOUT THIS GUIDE About This Guide provides an overview of this How to Use This Guide guide, describes the guide conventions, tells you where to look for specific information and lists other This table shows where to find specific information publications that may be useful. in this guide. If you are looking for... Turn to... Introduction An overview of the Switch 1000 Chapter 1 Information about installing the Switch 1000 into Chapter 2 This guide provides the information you need to ® your
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■ ■ ■ ■ ■ ■ ■ 2 ABOUT THIS GUIDE Table 2 Notice Icons Conventions Icon Notice Type Alerts you to... Table 1 and Table 2 list conventions that are used Information Important features or instructions throughout this guide. note Table 1 Text Conventions Caution Risk of personal injury, system damage, Convention Description or loss of data Screen This typeface represents information as it Warning Risk of severe personal injury displays appears on the screen. The words When you see the word “e
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■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 1 GETTING STARTED Full duplex on all fixed Ethernet and Fast Ethernet About the Switch 1000 ports, and Fast Ethernet Plug-in Module ports ® Part of 3Com’s SuperStack II range of products, Security the Switch 1000 is designed to overcome the Resilient Links common problem of insufficient bandwidth for Support for 16 Virtual LANs (VLANs) today’s growing network applications, while provid- ing low-cost, high performance networking with Spanning
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■ ■ 1-2 CHAPTER 1: GETTING STARTED Port Connections Transceiver Module A slot at the rear of the unit allows you to install 10BASE-T Ports any of the 3Com 10Mbps Ethernet Transceiver Mod- The Switch has 12 or 24 10BASE-T ports config- ules. When a Transceiver Module is fitted, port 1 ured as MDIX (cross-over), which provide a full automatically switches to become the Transceiver 10Mbps bandwidth to attached endstations. Maxi- Module port. The Transceiver Module can provide a mum segment len
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About the Switch 1000 1-3 Switch Operation and Features Forwarding of Packets The table below shows how a packet is processed How Does the Switch Compare to a Bridge? when it arrives at the Switch 1000. The table below shows how Switch 1000 operation compares to that of a conventional IEEE 802.1d bridge. Packet Source Destination Action Address Any port EXCEPT back- Unknown Forward to back- IEEE 802.1d Bridge Switch 1000 bone (Unicast packet) bone port only, or forward to all ports Address L
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■ ■ ■ ■ 1-4 CHAPTER 1: GETTING STARTED To best suit your networking requirements, the For more information about selecting forwarding Switch 1000 allows you to select one of four frame modes, refer to “Setting Up the Switch Unit” on forwarding modes: page 4-9. Fast Forward — Frames are forwarded as soon Intelligent Flow Management as the destination address is received and verified. Intelligent Flow Management (IFM) is a system for The forwarding delay, or latency, for all frames in cont
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■ ■ ■ ■ About the Switch 1000 1-5 For more information about enabling full duplex, Virtual LANs refer to “Setting Up the Switch Unit” and “Setting The Switch 1000 has a Virtual LAN (VLAN) feature Up the Switch Ports” in Chapter 4. which allows you to build your network segments without being restricted by physical connections. A Security VLAN is defined as a group of location- and The Switch 1000 contains advanced security fea- topology-independent devices that communicate as tures which g
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■ ■ ■ ■ ■ ■ 1-6 CHAPTER 1: GETTING STARTED Redundant paths are enabled if the main traffic paths fail. Switch 1000 on Your Network For more information about STP, refer to “Spanning Server Connections Tree Protocol” on page 5-12. When connecting servers to the Switch 1000, use the following rules to ensure that the Switch is PACE operating at maximum efficiency: The Switch 1000 supports PACE (Priority Access Ideally, any local server should be connected to Control Enabled) technology, whic
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Switch 1000 on Your Network 1-7 Network Segmentation I This example shows how the Switch 1000 fits into a large corporate network with a Fast Ethernet infrastructure. A Switch is positioned on each floor and servers are centralized in the basement. Figure 1-1 The Switch 1000 in a large corporate network
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1-8 CHAPTER 1: GETTING STARTED Network Segmentation II This example shows the Switch 1000 in a second workgroup situation. This setup could be that of a small office within a large corporation, or part of a larger corporate network. Most of the switch ports have multiple endstations. Figure 1-2 The Switch 1000 in a workgroup
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Switch 1000 on Your Network 1-9 Desktop Switching This example shows Switch 1000 used for a group of heavy-traffic users in a large corporate network. Here switching is brought to the desktop with a single endstation per switch port. A local server is connected using the 100Mbps Fast Ethernet link. Figure 1-3 The Switch 1000 as a desktop switch
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1-10 CHAPTER 1: GETTING STARTED Unit Overview — Front Figure 1-4 Switch 1000 front view: 3C16901A top, 3C16900A bottom
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Unit Overview — Front 1-11 10BASE-T Ports LED Color Indicates The Switch has 12 or 24 10BASE-T RJ45 ports con- TCVR Yellow Port 1 is a Transceiver Module fitted to the figured as MDIX (cross-over), which provide a full rear of the unit. 10Mbps bandwidth to attached endstations. The Port Status LEDs maximum segment length is 100m (328ft) over cat- Packet Yellow Frames are being transmitted/received on the egory 3, 4, or 5 UTP cable. port. Status Green Link is present; port is enabled. As these
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1-12 CHAPTER 1: GETTING STARTED Unit Overview — Rear Figure 1-5 Switch 1000 rear view
