IBM 8271 Nways Ethernet LAN Switch Manuale utente

8271 Nways Ethernet LAN

Switch Models F12 and F24

User’s Guide

F24user.bk Page i Wednesday, July 15, 1998 4:27 PM

Before using this information and the product it supports, be sure to read the gen-

eral information under Appendix A,“Safety Information” and Appendix G, “Notices,

Trademarks, and Warranties”.

First Edition (July, 1998)

This edition applies to the IBM 8271 Nways Ethernet LAN Switch Model F12 and F24 with

agent software version 1.0.

Order publications through your IBM representative or the IBM branch office serving your

locality. Publications are not stocked at the address given below.

If you have any comments on this publication, please address them to:

Department CGF

Design & Information Development

IBM Corporation

PO Box 12195

RESEARCH TRIANGLE PARK NC 27709

U.S.A.

When you send information to IBM, you grant IBM a non-exclusive right to use or distribute

the information in any way it believes appropriate without incurring any obligation to you.

RESERVED.

Note to US Government Users — Documentation released to restricted rights — Use, duplication

or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM

Corporation.

F24user.bk Page ii Wednesday, July 15, 1998 4:27 PM

CONTENTS

SAFETY NOTICES

Safety Notices 1

World Trade Safety Information 1

ABOUT THIS GUIDE

Finding Specific Information in This Guide 7

Conventions 8

Related Documentation 9

ETTING STARTED WITH THE SWITCH

1INTRODUCING THE SWITCH

About the Switch 1-2

Summary of Hardware Features 1-2

Summary of Software Features 1-2

Switch — Front View Detail 1-4

10BASE-T/

100BASE-TX Ports 1-4

LEDs 1-4

Switch — Rear View Detail 1-6

Unit Information Label 1-6

Power Socket 1-6

Redundant Power System Socket 1-6

Console Port 1-6

Expansion Module Slot 1-6

Matrix Port 1-7

Switch Software Features Explained 1-7

Full Duplex 1-7

Flow Control 1-7

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Security 1-8

Resilient Links 1-8

Spanning Tree Protocol 1-9

Management 1-9

Default Settings for the Switch 1-10

Network Configuration Examples 1-11

Configuration Rules for Fast Ethernet 1-14

Configuration Rules with Full Duplex 1-15

2INSTALLING THE SWITCH

Installing the Switch 2-2

Following Safety Information 2-2

Choosing a Suitable Site 2-2

Rack-mounting 2-3

Wall-mounting 2-4

Placing Units On Top of Each Other 2-5

Stacking Units 2-5

Stacking Two Units 2-5

Stacking Multiple Units 2-6

The Power-up Sequence 2-8

Connecting a Redundant Power System 2-8

Powering-up the Switch 2-8

Checking for Correct Operation 2-8

Choosing the Correct Cables 2-9

Assigning IP Information 2-10

3SETTING UPFOR MANAGEMENT

Why Manage the Stack? 3-2

Methods of Managing a Stack 3-2

Setting Up Web Interface Management 3-3

Through the Console Port 3-3

Over the Network 3-4

Installing Online Help and Documentation 3-4

Choosing a Suitable Browser 3-5

Setting Up Command Line Interface Management 3-6

Through the Console Port 3-6

Over the Network 3-7

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iii

Setting Up SNMP Management 3-7

Managing the Stack Over the Network 3-7

IP Addresses 3-8

Subnets and Using a Subnet Mask 3-8

Logging in as a Default User 3-9

II MANAGING THE SWITCH

4WORKING WITH THE WEB INTERFACE

Accessing the Web Interface 4-2

Exiting the Web Interface 4-3

About The Getting Started Pages 4-4

About the Main Web Interface 4-6

The External Link Icons 4-7

The Management Icons 4-8

The Page Area 4-8

Configuring the Current Switch 4-12

Viewing the Status of the Ports 4-12

Viewing the Administration Details of the Switch 4-14

Setting Up IP Information for the Switch 4-15

Configuring a Port on the Switch 4-16

Configuring the Console Port of the Switch 4-19

Changing the Management Settings for the Stack 4-21

Specifying a Descriptive Name for the Stack 4-21

Changing Your Password 4-22

Specifying the Physical Location of the Stack 4-23

Accessing the Getting Started Pages 4-23

Specifying the Location of the Online Help and Documentation 4-24

Specifying a Contact for the Stack 4-25

Configuring the Stack 4-26

Configuring the Switch Database of the Stack 4-26

Configuring the Operating Modes of the Stack 4-29

Setting Up Resilient Links for the Stack 4-31

Resetting All the Units in the Stack 4-33

Initializing All the Units in the Stack 4-34

Upgrading the Management Software of the Stack 4-35

F24user.bk Page iii Wednesday, July 15, 1998 4:27 PM

Viewing Statistics for the Current Switch 4-36

Displaying Unit Statistics 4-36

Displaying Port Statistics 4-37

5WORKING WITH THE COMMAND LINE INTERFACE

Accessing the Interface 5-2

Exiting the Interface 5-3

How Many Users Can Access the Interface? 5-3

About the Interface Menus 5-3

Entering Commands 5-4

Displaying Menus 5-5

Obtaining Help 5-5

A Quick Guide to the Commands 5-6

Viewing and Changing Information About Ports in the Stack 5-7

Enabling and Disabling Ports 5-7

Viewing Port Status Information 5-8

Viewing and Changing IP-related Information 5-8

Specifying IP and SLIP Information 5-9

Displaying IP and SLIP Information 5-10

Specifying Whether the Switch Uses BOOTP 5-10

Pinging Other Devices On Your Network 5-11

Viewing and Changing Information About the Stack 5-12

Moving the Focus of the Command Line Interface 5-12

Displaying Configuration Information About the Current Switch 5-13

Displaying Summary Information About the Switch Units in the

Stack 5-14

Changing Your Password 5-15

Enabling and Disabling Remote Access to the Stack 5-16

Resetting the Switch Units in the Stack 5-17

Initializing the Switch Units in the Stack 5-17

Upgrading the Management Software of the Stack 5-18

III ADVANCED NETWORKING FEATURES

6SPANNING T

REE PROTOCOL

What is STP? 6-2

F24user.bk Page iv Wednesday, July 15, 1998 4:27 PM

How STP Works 6-4

STP Initialization 6-4

STP Stabilization 6-4

STP Reconfiguration 6-5

An Example 6-5

STP Configurations 6-6

Enabling STP on a Stack 6-8

7RMON

What is RMON? 7-2

The RMON Groups 7-2

Benefits of RMON 7-4

RMON and the Stack 7-5

RMON Features of the Stack 7-6

About Alarm Actions 7-7

About Default Alarm Settings 7-8

About the Audit Log 7-8

IV PROBLEM SOLVING

8PROBLEM SOLVING

Solving Problems Indicated by LEDs 8-2

Solving Problems That Occur When Using the Web Interface 8-2

Solving Problems That Occur When Using the Command Line

Interface 8-5

Solving Problems That Occur When Using an SNMP Network

Manager 8-6

Solving Problems With the Serial Web Utility 8-7

Solving Problems With the Management Software Upgrade Utility 8-8

Solving Other Problems 8-9

F24user.bk Page v Wednesday, July 15, 1998 4:27 PM

PPENDICES AND INDEX

ASAFETY INFORMATION

Power Cords A-1

Important Safety Information A-3

BUSING THE SERIAL WEB UTILITY

Introduction B-1

Installing the Serial Web Utility B-1

Using the Serial Web Utility B-3

CMANAGEMENT SOFTWARE UPGRADE UTILITY

Using the Upgrade Utility C-1

DPIN-OUTS

Null Modem Cable D-1

PC-AT Serial Cable D-1

Modem Cable D-2

RJ45 Pin Assignments D-2

ESWITCH T

ECHNICAL SPECIFICATIONS

FTECHNICAL SUPPORT AND SERVICE

Electronic Support F-1

WWW F-1

FTP F-1

Voice Support F-1

GNOTICES, TRADEMARKS, AND WARRANTIES

Trademarks G-1

Statement of Limited Warranty G-2

Production Status G-2

The IBM Warranty for Machines G-2

F24user.bk Page vi Wednesday, July 15, 1998 4:27 PM

vii

Warranty Service G-3

Extent of Warranty G-4

Limitation of Liability G-4

Electronic Emission Notices for Shielded Twisted Pair (STP) Cable G-5

Federal Communications Commission (FCC) Statement G-5

Canadian Department of Communications (DOC) Compliance

Statement G-6

Avis de conformite aux normes du ministere des Communications du

Canada G-6

European Community (CE) Mark of Conformity Statement for Shielded

Cable G-6

CISPR22 Compliance Statement for Shielded Cable G-7

Japanese Voluntary Control Council for Interference (VCCI)

Statement G-7

Taiwanese Class A Warning Statement G-8

Korean Communications Statement G-8

Electronic Emission Notices for Unshielded Twisted Pair (UTP) Cable G-8

Federal Communications Commission (FCC) Statement G-8

Canadian Department of Communications (DOC) Compliance

Statement G-9

Avis de conformite aux normes du ministere des Communications du

Canada G-9

European Community (CE) Mark of Conformity Statement for

Unshielded Cable G-9

Japanese Voluntary Control Council for Interference (VCCI) Statement

Class A for Unshielded Cables G-10

Taiwanese Class A Warning Statement G-11

Korean Communications Statement G-11

GLOSSARY

INDEX

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F24user.bk Page viii Wednesday, July 15, 1998 4:27 PM

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