Belden Hirschmann Rail Switch Power Lite Manuale utente
UM RedundConfig RSPL
Release
2.0
02/2013
Technical Support
https://hirschmann-support.belden.eu.com
User Manual
Redundancy Configuration
Rail Switch Power Lite (RSPL)
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.
© 2013 Hirschmann Automation and Control GmbH
Manuals and software are protected by copyright. All rights reserved. The copying, reproduction,
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/DVD 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.com).
Printed in Germany
Hirschmann Automation and Control GmbH
Stuttgarter Str. 45-51
72654 Neckartenzlingen
Germany
Tel.: +49 1805 141538
Rel. 2.0 - 02/2013 – 11.02.2013
Contents
UM RedundConfig RSPL
Release
2.0
02/2013
3
Contents
About this Manual 5
Key 7
1 Network Topology vs. Redundancy Protocols 9
1.1 Network topologies 10
1.1.1 Meshed topology 10
1.1.2 Ring topology 11
1.2 Redundancy Protocols 12
2 Media Redundancy Protocol (MRP) 13
2.1 Network Structure 14
2.2 Reconfiguration time 15
2.3 Advanced mode 16
2.4 Prerequisites for MRP 17
2.5 Example Configuration 18
3 Spanning Tree 29
3.1 Basics 31
3.1.1 The tasks of the STP 31
3.1.2 Bridge parameters 32
3.1.3 Bridge Identifier 32
3.1.4 Root Path Cost 33
3.1.5 Port Identifier 34
3.1.6 Max Age and Diameter 35
3.2 Rules for Creating the Tree Structure 37
3.2.1 Bridge information 37
3.2.2 Setting up the tree structure 38
3.3 Examples 40
3.3.1 Example of determining the root path 40
3.3.2 Example of manipulating the root path 42
3.3.3 Example of manipulating the tree structure 44
3.4 The Rapid Spanning Tree Protocol 45
3.4.1 Port roles 45
3.4.2 Port states 48
Contents
4
UM RedundConfig RSPL
Release
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02/2013
3.4.3 Spanning Tree Priority Vector 49
3.4.4 Fast reconfiguration 49
3.4.5 STP compatibility mode 50
3.5 Configuring the device 51
3.6 Guards 57
3.6.1 Activating the BPDU Guard 61
3.6.2 Activating Root Guard / TCN Guard / Loop Guard 64
A Readers’ Comments 66
B Index 69
C Further Support 71
About this Manual
UM RedundConfig RSPL
Release
2.0
02/2013
5
About this Manual
The “GUI” reference manual contains detailed information on using the
graphical 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 “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 “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 “Redundancy Configuration” user manual document contains the
information you require to select the suitable redundancy procedure and
configure it.
The “HiView” user manual contains information for using the HiView GUI
application. This application allows you to use the graphical user interface of
Hirschmann devices with management independently of other applications,
such as a browser.
About this Manual
6
UM RedundConfig RSPL
Release
2.0
02/2013
The Industrial HiVision Network Management Software provides you with
additional options for smooth configuration and monitoring:
Simultaneous configuration of multiple devices
Graphical user interface with network layout
Auto-topology discovery
Event log
Event handling
Client/server structure
Browser interface
ActiveX control for SCADA integration
SNMP/OPC gateway.
Key
UM RedundConfig RSPL
Release
2.0
02/2013
7
Key
The designations used in this manual have the following meanings:
Symbols used:
List
Work step
Subheading
Link Cross-reference with link
Note: A note emphasizes an important fact or draws your attention to a dependency.
Courier ASCII representation in user interface
Execution in the Graphical User Interface
Execution in the Command Line Interface
WLAN access point
Router with firewall
Switch with firewall
Router
Switch
Key
8
UM RedundConfig RSPL
Release
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02/2013
Bridge
Hub
A random computer
Configuration Computer
Server
PLC -
Programmable logic
controller
I/O -
Robot
Network Topology vs. Redundancy
Protocols
UM RedundConfig RSPL
Release
2.0
02/2013
9
1 Network Topology vs.
Redundancy Protocols
When using Ethernet, an important prerequisite is that data packets follow a
single (unique) path from the sender to the receiver. The following network
topologies support this prerequisite:
Line topology
Star topology
Tree topology
Figure 1: Network with line, star and tree topologies
To ensure that the communication is maintained when a connection fails, you
install additional physical connections between the network nodes.
Redundancy protocols ensure that the additional connections remain
switched off while the original connection is still working. If the connection
fails, the redundancy protocol generates a new path from the sender to the
receiver via the alternative connection.
To introduce redundancy onto layer 2 of a network, you first define 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.
Network Topology vs. Redundancy
Protocols
10
1.1
Network topologies
UM RedundConfig RSPL
Release
2.0
02/2013
1.1 Network topologies
1.1.1 Meshed topology
For networks with star or tree topologies, redundancy procedures are only
possible in connection with physical loop creation. The result is a meshed
topology.
Figure 2: Meshed topology: Tree topology with physical loops
For operating in this network topology, the device provides you with the
following redundancy protocols:
Rapid Spanning Tree (RSTP)
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