Hirschmann RS20 series Bedienungsanleitung

Redundancy

Release

6.0

07/2010

Technical Support

[email protected]

User Manual

Redundancy Configuration

Industrial ETHERNET Switch

RS20, RSB20

The naming of copyrighted trademarks in this manual, even when not specially indicated, should

not be taken to mean that these names may be considered as free in the sense of the trademark

and tradename protection law and hence that they may be freely used by anyone.

translation, conversion into any electronic medium or machine scannable form is not permitted,

either in whole or in part. An exception is the preparation of a backup copy of the software for

your own use. For devices with embedded software, the end-user license agreement on the

enclosed CD applies.

The performance features described here are binding only if they have been expressly agreed

when the contract was made. This document was produced by Hirschmann Automation and

Control GmbH according to the best of the company's knowledge. Hirschmann reserves the right

to change the contents of this document without prior notice. Hirschmann can give no guarantee

in respect of the correctness or accuracy of the information in this document.

Hirschmann can accept no responsibility for damages, resulting from the use of the network

components or the associated operating software. In addition, we refer to the conditions of use

specified in the license contract.

You can get the latest version of this manual on the Internet at the Hirschmann product site

(www.hirschmann-ac.de).

Printed in Germany

Hirschmann Automation and Control GmbH

Stuttgarter Str. 45-51

72654 Neckartenzlingen

Germany

Tel.: +49 1805 141538

Rel. 6.01-01 07/2010 – 14.7.10

Contents

About this Manual 5

Key 6

1 Introduction 9

1.1 Overview of Redundancy Topologies 10

1.2 Overview of Redundancy Protocols 11

2 Ring Redundancy 13

2.1 Example of a HIPER-Ring 15

2.1.1 Setting up and configuring the HIPER-Ring 17

2.2 Example of an MRP-Ring 21

3 Multiple Rings 27

3.1 Sub-Ring 28

3.1.1 Example configuration 31

4 Spanning Tree 39

4.1 The Spanning Tree Protocol 41

4.1.1 The tasks of the STP 41

4.1.2 Bridge parameters 42

4.1.3 Bridge Identifier 42

4.1.4 Root Path Cost 43

4.1.5 Port Identifier 45

4.2 Rules for Creating the Tree Structure 46

4.2.1 Bridge information 46

4.2.2 Setting up the tree structure 46

4.3 Example of Root Path Determination 48

4.4 Example of Root Path Manipulation 50

4.5 Example of Tree Structure Manipulation 52

4.6 The Rapid Spanning Tree Protocol 53

4.6.1 Port roles 53

4.6.2 Port states 55

4.6.3 Spanning Tree Priority Vector 56

4.6.4 Fast reconfiguration 57

Contents

4Redundancy

Release

6.0

07/2010

4.6.5 Configuring the Rapid Spanning Tree 58

4.7 Combining RSTP and MRP 68

4.7.1 Application example for the combination of RSTP and

MRP 70

A Readers’ Comments 73

B Index 75

C Further Support 77

About this Manual

Redundancy L2B

Release

6.0

07/2010 5

About this Manual

The “Redundancy Configuration” user manual contains the information you

need to select a suitable redundancy procedure and configure that

procedure.

The “Basic Configuration” user manual contains the information you need to

start operating the device. It takes you step by step from the first startup

operation through to the basic settings for operation in your environment.

The “Installation” user manual contains a device description, safety

instructions, a description of the display, and the other information that you

need to install the device.

The "Web-based Interface" reference manual contains detailed information

on using the Web interface to operate the individual functions of the device.

The "Command Line Interface" reference manual contains detailed

information on using the Command Line Interface to operate the individual

functions of the device.

The Network Management Software HiVision/Industrial HiVision provides

you with additional options for smooth configuration and monitoring:

XConfiguration of multiple devices simultaneously.

XGraphical interface with network layouts.

XAuto-topology discovery.

XEvent log.

XEvent handling.

XClient / Server structure.

XBrowser interface

XActiveX control for SCADA integration

XSNMP/OPC gateway

Key

6Redundancy

Release

6.0

07/2010

Key

The designations used in this manual have the following meanings:

Symbols used:

XList

Work step

Subheading

Link Indicates a cross-reference with a stored link

Note: A note emphasizes an important fact or draws your

attention to a dependency.

Courier ASCII representation in user interface

Execution in the Web-based Interface user interface

Execution in the Command Line Interface user interface

WLAN access point

Router with firewall

Switch with firewall

Router

Switch

Key

Redundancy L2B

Release

6.0

07/2010 7

Bridge

Hub

A random computer

Configuration Computer

Server

PLC -

Programmable logic

controller

I/O -

Robot

Key

8Redundancy

Release

6.0

07/2010

Introduction

Redundancy L2B

Release

6.0

07/2010 9

1 Introduction

The device contains a range of redundancy functions:

XHIPER-Ring

XMRP-Ring

Introduction

1.1

Overview of Redundancy Topolo-

gies

Redundancy

Release

6.0

07/2010

1.1 Overview of Redundancy

Topologies

To introduce redundancy onto layer 2 of a network, first clarify which network

topology you require. Depending on the network topology selected, you then

choose from the redundancy protocols that can be used with this network

topology.

The following topologies are possible:

Network topology Possible redundancy

procedures

Comments

Tree structure

without loops

(cycle-free)

Only possible in

combination with

physical loop creation

Topology with 1

loop

Ring Redundancy -

Table 1: Overview of Redundancy Topologies

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