Extreme Networks Px Series Manuale dell'operatore

Extreme Networks, Inc.

3585 Monroe Street

Santa Clara, California 95051

(888) 257-3000

http://www.extremenetworks.com

Px Series

Application Switch

Installation and

Configuration Guide

Published: April 2002

Part number: 100101-00 Rev. 02

registered trademarks of Extreme Networks, Inc. in the United States and certain other jurisdictions.

ExtremeWare, ExtremeWare Vista, ExtremeWorks, ExtremeAssist, ExtremeAssist1, ExtremeAssist2,

PartnerAssist, Extreme Standby Router Protocol, ESRP, SmartTraps, Alpine, Summit, Summit1,

Summit4, Summit4/FX, Summit7i, Summit24, Summit48, Summit Virtual Chassis, SummitLink,

SummitGbX, SummitPx1, SummitRPS and the Extreme Networks logo are trademarks of Extreme

Networks, Inc., which may be registered or pending registration in certain jurisdictions. The Extreme

Turbodrive logo is a service mark of Extreme Networks, which may be registered or pending

registration in certain jurisdictions. Specifications are subject to change without notice.

NetWare and Novell are registered trademarks of Novell, Inc. Merit is a registered trademark of Merit

Network, Inc. Solaris is a trademark of Sun Microsystems, Inc. F5, BIG/ip, and 3DNS are registered

trademarks of F5 Networks, Inc. see/IT is a trademark of F5 Networks, Inc.

All other registered trademarks, trademarks and service marks are property of their respective owners.

Px Series Application Switch Installation and Configuration Guide iii

Contents

Preface

Introduction 1-vii

Conventions 1-viii

Related Publications 1-ix

1 Server Load Balancing Concepts

Purpose of Server Load Balancing 1-1

Terms 1-2

Load Balancing Modes 1-3

Layer 4 Load Balancing 1-3

Layer 7 Load Balancing and Content Analysis 1-4

Port Rewrite 1-6

Getting Started on Load Balancing Configuration 1-6

2 Installing the SummitPx1 Application Switch

Overview of the SummitPx1 Application Switch 2-1

SummitPx1 Front View 2-1

SummitPx1 Application Switch Rear View 2-3

Determining the Location 2-4

Installing the SummitPx1 Application Switch 2-4

Rack Mounting 2-4

iv Px Series Application Switch Installation and Configuration Guide

Free-Standing 2-5

Powering On the SummitPx1 2-5

Setting Up Console Communication 2-6

Configuring Switch IP Parameters 2-7

Configuring the 10/100 Ethernet Management Port 2-8

3 Installing the PxM Application Switch Module

Installing I/O Modules 3-1

Removing I/O Modules 3-2

4 Managing the Switch

Using the Command-Line Interface 4-2

Abbreviated Syntax and Command Completion 4-2

Syntax Symbols 4-2

Line-Editing Keys 4-3

Specifying Text Values 4-3

Command History 4-4

Prompt Text 4-4

Configuring Management Access 4-4

Changing the Default Passwords 4-5

Creating Accounts 4-6

Managing the PxM 4-7

Configuring VLANs 4-8

Configuring SNMP 4-9

Configuring DNS Client Services 4-10

Using Secure Shell 2 (SSH2) 4-11

Enabling SSH2 for Inbound Switch Access 4-12

Using SCP2 from an External SSH2 Client 4-13

SSH2 Client Functions on the Switch 4-14

Utilities 4-15

Showing CPU Load 4-15

Checking Basic Connectivity 4-15

Logging 4-16

Px Series Application Switch Installation and Configuration Guide v

Configuring a Startup Banner Message 4-17

Starting the GlobalPx Content Director Agent 4-17

Example Configuration 4-18

5 Configuring Servers and Services

Configuring Real Servers 5-1

Configuring Server Groups 5-2

Configuring Virtual Services 5-3

Layer 4 Port-based Load Balancing 5-4

Layer 7 Virtual Services 5-4

Configuring Traffic Tagging 5-5

Configuration Example 5-6

6 Choosing Policies, Persistence Modes, and NAT

Scheduling Policies 6-1

Persistence Modes 6-2

UDP Flow Persistence 6-3

Client IP Persistence Mode 6-3

Cookie Persistence Modes 6-5

SSL Session Identifier Persistence 6-13

NAT Modes 6-14

Full-NAT Mode 6-14

Server-only Half-NAT Mode 6-15

Configuration Example 6-17

7 URL Switching

Domain and URL Switching 7-1

Domain Switching 7-2

URL Switching 7-4

Configuring URL Switching 7-4

Creating Domain and URL Switching Rules 7-8

Modifying Existing URL Rules and Domains 7-9

vi Px Series Application Switch Installation and Configuration Guide

Configuration Example 7-9

8 Configuring Redundancy

Using VRRP with the SummitPx1 8-1

Adding and Configuring VRRPs 8-2

Using VRRP in Existing Redundant Networks 8-3

VRRP Automatic Synchronization 8-4

Configuring Redundancy for the PxM 8-6

Using ESRP with the PxM 8-6

Configuring the PxM for Multiple VLANs 8-7

Configuring a Default Gateway 8-8

9 Health Checks

Overview 9-1

Server Startup Pacing 9-2

Health Checking Procedure 9-3

Configuring Health Checks 9-4

Types of Health Checks 9-4

Timers and Counters 9-4

10 Monitoring the Switch

Showing Traffic Statistics 10-1

Showing Configuration Details 10-3

Configuration Displays 10-4

Status Displays 10-5

Managing and Troubleshooting Operation 10-7

Index

Index of Commands

Px Series Application Switch Installation and Configuration Guide vii

Preface

This preface provides an overview of this guide, describes guide conventions, and lists

other publications that may be useful.

Introduction

This guide provides the required information to configure the Extreme Networks Px

series application switches, SummitPx1TM and PxMTM.

This guide is intended for use by network administrators who are responsible for

installing and setting up network equipment. It assumes a basic working knowledge of:

•Local area networks (LANs)

•Ethernet concepts

•Ethernet switching and bridging concepts

•Routing concepts

•Internet Protocol (IP) concepts, including connection initiation process

•Network Address Translation (NAT)

If the information in the release notes shipped with your switch differs from the

information in this guide, follow the release notes.

viii Px Series Application Switch Installation and Configuration Guide

Preface

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 indicates command syntax, or represents information

as it appears on the screen.

The words “enter”

and “type” When you see the word “enter” in this guide, you must type

something, and then press the Return or Enter key. Do not press

the Return or Enter key when an instruction simply says “type.”

[Key] names Key names are written with brackets, such as [Return] or [Esc].

If you must press two or more keys simultaneously, the key names

are linked with a plus sign (+). Example:

Press [Ctrl]+[Alt]+[Del].

Words in italicized type Italics emphasize a point or denote new terms at the place where

they are defined in the text.

Px Series Application Switch Installation and Configuration Guide ix

Related Publications

The publications related to this one are:

•ExtremeWare Software User Guide

•Px Series Application Switch Release Notes

Documentation for Extreme products is available on the World Wide Web at the

following location:

•http://www.extremenetworks.com

xPx Series Application Switch Installation and Configuration Guide

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