IEC 62439-5:2010
(Main)Industrial communication networks - High availability automation networks - Part 5: Beacon Redundancy Protocol (BRP)
Industrial communication networks - High availability automation networks - Part 5: Beacon Redundancy Protocol (BRP)
IEC 62439-5:2010 is applicable to high-availability automation networks based on the ISO/IEC 8802-3 (IEEE 802.3) (Ethernet) technology. This part of the IEC 62439 series specifies a redundancy protocol that is based on the duplication of the network, the redundancy protocol being executed within the end nodes, as opposed to a redundancy protocol built in the switches. Fast error detection is provided by two beacon nodes, the switchover decision is taken in every node individually. The cross-network connection capability enables single attached end nodes to be connected on either of the two networks. This standard cancels and replaces IEC 62439 published in 2008. This first edition constitutes a technical revision. It includes the following significant technical changes:
- adding a calculation method for RSTP (rapid spanning tree protocol, IEEE 802.1Q),
- adding two new redundancy protocols: HSR (High-availability Seamless Redundancy) and DRP (Distributed Redundancy Protocol),
- moving former Clauses 1 to 4 (introduction, definitions, general aspects) and the Annexes (taxonomy, availability calculation) to IEC 62439-1, which serves now as a base for the other documents,
- moving Clause 5 (MRP) to IEC 62439-2 with minor editorial changes,
- moving Clause 6 (PRP) was to IEC 62439-3 with minor editorial changes,
- moving Clause 7 (CRP) was to IEC 62439-4 with minor editorial changes, and
- moving Clause 8 (BRP) was to IEC 62439-5 with minor editorial changes,
- adding a method to calculate the maximum recovery time of RSTP in a restricted configuration (ring) to IEC 62439-1 as Clause 8, adding specifications of the HSR (High-availability Seamless Redundancy) protocol, which shares the principles of PRP to IEC 62439-3 as Clause 5, and
-introducing the DRP protocol as IEC 62439-6.
This bilingual version (2012-04) corresponds to the English version, published in 2010-02.
This publication is to be read in conjunction with IEC 62439-1:2010.
Réseaux industriels de communication - Réseaux d'automatisme à haute disponibilité - Partie 5: Protocole de redondance à balise (BRP)
La CEI 62439-5:2010 concerne les réseaux d'automatisme à haute disponibilité reposant sur la technologie (Ethernet) de l'ISO/CEI 8802-3 (IEEE 802.3). La présente partie de la série CEI 62439 porte sur un protocole de redondance reposant sur la duplication du réseau, ce protocole étant exécuté dans les noeuds d'extrémité, par opposition à un protocole de redondance intégré aux commutateurs. La détection rapide des erreurs est assurée par deux noeuds balise, la décision de basculement étant prise dans chaque noeud individuellement. La capacité de connexion inter-réseau permet à des noeuds d'extrémité à une seule association d'être connectés sur l'un ou l'autre des deux réseaux. La présente norme annule et remplace la CEI 62439 publiée en 2008. Cette première édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes:
- ajout d'une méthode de calcul pour le protocole RSTP (Rapid Spanning Tree Protocol, IEEE 802.1Q),
- ajout de deux nouveaux protocoles de redondance: HSR (redondance transparente de haute disponibilité) et DRP (protocole de redondance distribuée),
- déplacement des Articles 1 à 4 (Introduction, Définitions, Aspects généraux) et des Annexes (Taxinomie, Calcul de disponibilité) dans la CEI 62439-1, qui servent à présent de base aux autres documents,
- déplacement de l'Article 5 (MRP, Media Redundancy Protocol) dans la CEI 62439-2 avec peu de modifications éditoriales,
- déplacement de l'Article 6 (PRP, Protocole de Redondance Parallèle) dans la CEI 62439-3 avec peu de modifications éditoriales,
- déplacement de l'Article 7 (CRP, Protocole de Redondance Transréseau) dans la CEI 62439-4 avec peu de modifications éditoriales, et
- déplacement de l'Article 8 (BRP, Protocole de Redondance à Balise) dans la CEI 62439-5 avec peu de modifications éditoriales,
- ajout d'une méthode de calcul du temps de reprise maximal du protocole RSTP dans une configuration restreinte (anneau) dans la CEI 62439-1 (Article 8),
- ajout de spécifications du protocole HSR, qui partage les principes du protocole PRP dans la CEI 62439-3 (Article 5), et
- introduction du protocole DRP (CEI 62439-6).
La présente version bilingue (2012-04) correspond à la version anglaise monolingue publiée en 2010-02.
Cette publication doit être lue conjointement avec la CEI 62439-1:2010.
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IEC 62439-5 ®
Edition 1.0 2010-02
INTERNATIONAL
STANDARD
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inside
Industrial communication networks – High availability automation networks –
Part 5: Beacon Redundancy Protocol (BRP)
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IEC 62439-5 ®
Edition 1.0 2010-02
INTERNATIONAL
STANDARD
colour
inside
Industrial communication networks – High availability automation networks –
Part 5: Beacon Redundancy Protocol (BRP)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
X
ICS 25.040, 35.040 ISBN 978-2-88910-708-7
– 2 – 62439-5 © IEC:2010(E)
CONTENTS
FOREWORD.4
INTRODUCTION.6
1 Scope.7
2 Normative references .7
3 Terms, definitions, abbreviations, acronyms, and conventions.7
3.1 Terms and definitions .7
3.2 Abbreviations and acronyms.8
3.3 Conventions .8
4 BRP overview.8
5 BRP principle of operation.8
5.1 General .8
5.2 Network topology.8
5.3 Network components .10
5.4 Rapid reconfiguration of network traffic .11
6 BRP stack and fault detection features .11
7 BRP protocol specification.13
7.1 MAC addresses .13
7.2 EtherType .13
7.3 Fault detection mechanisms .13
7.4 End node state diagram .13
7.5 Beacon end node state diagram .21
8 BRP message structure .27
8.1 General .27
8.2 ISO/IEC 8802-3 (IEEE 802.3) tagged frame header.28
8.3 Beacon message.28
8.4 Learning_Update message .28
8.5 Failure_Notify message.29
8.6 Path_Check_Request message .29
8.7 Path_Check_Response message .29
9 BRP fault recovery time.29
10 BRP service definition .30
10.1 Supported services.30
10.2 Common service parameters .31
10.3 Set_Node_Parameters service .31
10.4 Get_Node_Parameters service.33
10.5 Add_Node_Receive_Parameters service .35
10.6 Remove_Node_Receive_Parameters service .37
10.7 Get_Node_Status service.38
11 BRP Management Information Base (MIB).39
Bibliography.41
Figure 1 – BRP star network example .9
Figure 2 – BRP linear network example .9
Figure 3 – BRP ring network example .10
Figure 4 – BRP stack architecture.11
62439-5 © IEC:2010(E) – 3 –
Figure 5 – BRP state diagram of end node.14
Figure 6 – BRP state diagram for beacon end node .21
Table 1 – BRP end node flags .16
Table 2 – BRP end node state transition table .17
Table 3 – BRP beacon end node flags .23
Table 4 – BRP beacon end node state transition table .24
Table 5 – BRP common header with ISO/IEC 8802-3 (IEEE 802.3) tagged frame format.28
Table 6 – BRP beacon message format .28
Table 7 – BRP Learning_Update message format .28
Table 8 – BRP Failure_Notify message format .29
Table 9 – BRP Path_Check_Request message format .29
Table 10 – BRP Path_Check_Response message format .29
Table 11 – BRP Set_Node_Parameters service parameters.32
Table 12 – BRP Get_Node_Parameters service parameters .34
Table 13 – BRP Add_Node_Receive_Parameters service parameters .36
Table 14 – BRP Remove_Node_Receive_Parameters service parameters.37
Table 15 – BRP Get_Node_Status service parameters .38
– 4 – 62439-5 © IEC:2010(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
HIGH AVAILABILITY AUTOMATION NETWORKS –
Part 5: Beacon Redundancy Protocol (BRP)
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
International Standard IEC 62439-5 has been prepared by subcommittee 65C: Industrial
Networks, of IEC technical committee 65: Industrial-process measurement, control and
automation.
This standard cancels and replaces IEC 62439 published in 2008. This first edition constitutes
a technical revision.
This edition includes the following significant technical changes with respect to IEC 62439
(2008):
– adding a calculation method for RSTP (rapid spanning tree protocol, IEEE 802.1Q),
– adding two new redundancy protocols: HSR (High-availability Seamless Redundancy)
and DRP (Distributed Redundancy Protocol),
– moving former Clauses 1 to 4 (introduction, definitions, general aspects) and the
Annexes (taxonomy, availability calculation) to IEC 62439-1, which serves now as a
base for the other documents,
– moving Clause 5 (MRP) to IEC 62439-2 with minor editorial changes,
62439-5 © IEC:2010(E) – 5 –
– moving Clause 6 (PRP) was to IEC 62439-3 with minor editorial changes,
– moving Clause 7 (CRP) was to IEC 62439-4 with minor editorial changes, and
– moving Clause 8 (BRP) was to IEC 62439-5 with minor editorial changes,
– adding a method to calculate the maximum recovery time of RSTP in a restricted
configuration (ring) to IEC 62439-1 as Clause 8,
– adding specifications of the HSR
...
IEC 62439-5 ®
Edition 1.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – High availability automation networks –
Part 5: Beacon Redundancy Protocol (BRP)
Réseaux industriels de communication – Réseaux d’automatisme à haute
disponibilité –
Partie 5: Protocole de redondance à balise (BRP)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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International Standards for all electrical, electronic and related technologies.
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IEC 62439-5 ®
Edition 1.0 2010-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial communication networks – High availability automation networks –
Part 5: Beacon Redundancy Protocol (BRP)
Réseaux industriels de communication – Réseaux d’automatisme à haute
disponibilité –
Partie 5: Protocole de redondance à balise (BRP)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 25.040; 35.040 ISBN 978-2-8322-0060-5
– 2 – 62439-5 IEC:2010
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, abbreviations, acronyms, and conventions . 7
3.1 Terms and definitions . 7
3.2 Abbreviations and acronyms . 8
3.3 Conventions . 8
4 BRP overview . 8
5 BRP principle of operation . 8
5.1 General . 8
5.2 Network topology. 8
5.3 Network components . 10
5.4 Rapid reconfiguration of network traffic . 11
6 BRP stack and fault detection features . 11
7 BRP protocol specification . 13
7.1 MAC addresses . 13
7.2 EtherType . 13
7.3 Fault detection mechanisms . 13
7.4 End node state diagram . 13
7.5 Beacon end node state diagram . 21
8 BRP message structure . 27
8.1 General . 27
8.2 ISO/IEC 8802-3 (IEEE 802.3) tagged frame header . 28
8.3 Beacon message . 28
8.4 Learning_Update message . 28
8.5 Failure_Notify message . 29
8.6 Path_Check_Request message . 29
8.7 Path_Check_Response message . 29
9 BRP fault recovery time . 29
10 BRP service definition . 30
10.1 Supported services . 30
10.2 Common service parameters . 30
10.3 Set_Node_Parameters service . 31
10.4 Get_Node_Parameters service . 33
10.5 Add_Node_Receive_Parameters service . 35
10.6 Remove_Node_Receive_Parameters service . 37
10.7 Get_Node_Status service . 38
11 BRP Management Information Base (MIB) . 39
Bibliography . 41
Figure 1 – BRP star network example . 9
Figure 2 – BRP linear network example . 9
Figure 3 – BRP ring network example . 10
62439-5 IEC:2010 – 3 –
Figure 4 – BRP stack architecture . 11
Figure 5 – BRP state diagram of end node . 14
Figure 6 – BRP state diagram for beacon end node . 21
Table 1 – BRP end node flags . 16
Table 2 – BRP end node state transition table . 17
Table 3 – BRP beacon end node flags . 23
Table 4 – BRP beacon end node state transition table . 24
Table 5 – BRP common header with ISO/IEC 8802-3 (IEEE 802.3) tagged frame format. 28
Table 6 – BRP beacon message format . 28
Table 7 – BRP Learning_Update message format . 28
Table 8 – BRP Failure_Notify message format . 29
Table 9 – BRP Path_Check_Request message format . 29
Table 10 – BRP Path_Check_Response message format . 29
Table 11 – BRP Set_Node_Parameters service parameters . 32
Table 12 – BRP Get_Node_Parameters service parameters . 34
Table 13 – BRP Add_Node_Receive_Parameters service parameters . 36
Table 14 – BRP Remove_Node_Receive_Parameters service parameters . 37
Table 15 – BRP Get_Node_Status service parameters . 38
– 4 – 62439-5 IEC:2010
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL COMMUNICATION NETWORKS –
HIGH AVAILABILITY AUTOMATION NETWORKS –
Part 5: Beacon Redundancy Protocol (BRP)
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts ar
...
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