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BS EN IEC 62439-3:2022

BS EN IEC 62439-3:2022

$256.21

Industrial communication networks. High availability automation networks – Parallel Redundancy Protocol (PRP) and High-availability Seamless Redundancy (HSR)

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BSI 2022 256
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PDF Pages PDF Title
2 undefined
5 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
15 FOREWORD
18 INTRODUCTION
20 1 Scope
1.1 General
1.2 Code component distribution
21 2 Normative references
22 3 Terms, definitions, abbreviated terms, and conventions
3.1 Terms and definitions
24 3.2 Abbreviated terms
25 3.3 Conventions
4 Parallel Redundancy Protocol (PRP)
4.1 PRP principle of operation
4.1.1 PRP network topology
26 Figures
Figure 1 – PRP example of general duplicated network
27 4.1.2 PRP LANs with linear or bus topology
4.1.3 PRP LANs with ring topology
Figure 2 – PRP example of duplicated network in bus topology
28 4.1.4 DANP node structure
Figure 3 – PRP example of redundant ring with SANs and DANPs
29 4.1.5 PRP attachment of singly attached nodes
Figure 4 – PRP with two DANPs communicating
30 4.1.6 Compatibility between singly and doubly attached nodes
4.1.7 Network management
4.1.8 Implication on application
31 4.1.9 Transition to a single-thread network
4.1.10 Duplicate handling
Figure 5 – PRP RedBox, transition from single to double LAN
32 Figure 6 – PRP frame closed by an RCT
33 Figure 7 – PRP VLAN-tagged frame closed by an RCT
Figure 8 – PRP padded frame closed by an RCT
35 Figure 9 – Duplicate Discard algorithm boundaries
Tables
Table 1 – Duplicate discard cases
36 4.1.11 Network supervision
4.1.12 Redundancy management interface
37 4.2 PRP protocol specifications
4.2.1 Installation, configuration and repair guidelines
4.2.2 Unicast MAC addresses
4.2.3 Multicast MAC addresses
38 4.2.4 IP addresses
4.2.5 Node specifications
4.2.6 Duplicate Accept mode (testing only)
39 4.2.7 Duplicate Discard mode
Table 2 – Monitoring data set
40 Table 3 – NodesTable attributes
43 4.3 PRP_Supervision frame
4.3.1 PRP_Supervision frame format
44 Table 4 – PRP_Supervision frame with no VLAN tag
45 4.3.2 PRP_Supervision frame contents
Table 5 – PRP_Supervision frame with (optional) VLAN tag
46 4.3.3 PRP_Supervision frame for RedBox
4.3.4 Bridging node (deprecated)
Table 6 – PRP_Supervision frame contents
Table 7 – PRP_Supervision TLV for Redbox
47 4.4 Constants
4.5 PRP layer management entity (LME)
5 High-availability Seamless Redundancy (HSR)
5.1 HSR objectives
Table 8 – PRP constants
48 5.2 HSR principle of operation
5.2.1 Basic operation with a ring topology
Figure 10 – HSR example of ring traffic for multicast frames
49 Figure 11 – HSR example of ring traffic for unicast frames
50 5.2.2 HSR connection to other networks
52 Figure 12 – HSR example of coupling two redundant PRP LANs to a ring (unicast)
54 Figure 13 – HSR example of coupling from a ring node to PRP LANs (multicast)
55 Figure 14 – HSR example of coupling from a ring to two PRP LANs (multicast)
56 Figure 15 – HSR example of coupling three rings to one PRP LAN
57 Figure 16 – HSR example of peer coupling of two rings
58 Figure 17 – HSR example of connected rings
59 Figure 18 – HSR example of meshed topology
60 Figure 19 – HSR example of topology using two independent networks
61 Figure 20 – HSR example of coupling an RSTP LAN to HSR by two bridges
62 5.2.3 DANH node structure
Figure 21 – HSR structure of a DANH
63 5.2.4 RedBox structure
Figure 22 – HSR structure of a RedBox
64 5.3 HSR protocol specifications
5.3.1 HSR layout
5.3.2 HSR operation
66 5.3.3 DANH sending from its link layer interface
67 5.3.4 DANH receiving from an HSR port
5.3.5 DANH forwarding rules
69 5.3.6 HSR Class of Service
5.3.7 HSR clock synchronization
5.3.8 Deterministic transmission delay and jitter
5.4 HSR RedBox specifications
5.4.1 RedBox properties
70 5.4.2 RedBox receiving from port C (interlink)
72 5.4.3 RedBox receiving from port A or port B (HSR ring)
74 5.4.4 RedBox receiving from its link layer interface (local)
5.4.5 Redbox ProxyNodeTable handling
5.4.6 RedBox CoS
5.4.7 RedBox clock synchronization
5.4.8 RedBox medium access
75 5.5 QuadBox specification
5.6 Duplicate Discard method
5.7 Frame format for HSR
5.7.1 Frame format for all frames
Figure 23 – HSR frame without a VLAN tag
76 5.7.2 HSR_Supervision frame
Figure 24 – HSR frame with VLAN tag
77 Table 9 – HSR_Supervision frame with no VLAN tag
78 Table 10 – HSR_Supervision frame with optional VLAN tag
79 5.8 HSR constants
80 5.9 HSR layer management entity (LME)
Table 11 – HSR Constants
81 Figure 25 – HSR node with management counters
82 6 Protocol Implementation Conformance Statement (PICS)
Figure 26 – HSR RedBox with management counters
83 Table 12 – PICS
84 7 PRP/HSR Management Information Base (MIB)
99 Annex A (normative)Synchronization of clocks over redundant paths
A.1 Overview
A.2 PRP mapping to PTP
A.2.1 Particular operation of PRP for PTP messages
100 Figure A.1 – Connection of a DAC master to a DAC slave over PRP
101 A.2.2 Scenarios and device roles
102 Figure A.2 – Elements of PRP time distribution networks
103 A.2.3 Attachment to redundant LANs by a BC
A.2.4 Attachment to redundant LANs by doubly attached clocks
Figure A.3 – Doubly Attached Clock as BC (OC3A is best master)
105 Figure A.4 – Doubly Attached Clocks OC1 and OC2
107 A.2.5 Specifications of DANP as DAC
Figure A.5 – Doubly attached clocks when OC1 has the same identity on both LANs
108 A.2.6 PRP-SAN RedBoxes for PTP
109 Figure A.6 – PRP RedBox as TWBCs
110 Figure A.7 – RedBox DABC clock model
112 Figure A.8 – PRP RedBoxes as DABC with E2E – message flow
113 Figure A.9 – PRP RedBoxes as DABC with E2E – timing
114 Figure A.10 – PRP RedBoxes as DABC with P2P on PRP – message flow
115 Figure A.11 – PRP RedBoxes as DABC with P2P on PRP – timing
117 Figure A.12 – PRP-SAN RedBox as SLTC with E2E – message flow
119 Figure A.13 – PRP RedBox as SLTC with E2E – timing
120 Figure A.14 – PRP RedBox as SLTC with P2P – message flow
121 Figure A.15 – PRP RedBox as SLTC with P2P – timing diagram
124 Figure A.16 – PRP RedBox as DATC with E2E – message flow
125 Figure A.17 – PRP RedBox as DATC with E2E – timing
126 Figure A.18 – PRP RedBox as DATC with P2P – message flow
127 Figure A.19 – PRP RedBox as DATC with P2P – timing
128 A.3 HSR Mapping to PTP
A.3.1 HSR messages and other messages
A.3.2 HSR operation with PTP messages
130 A.3.3 HSR with redundant master clocks
Figure A.20 – HSR with two GCs (GC1 is grandmaster, GC2 is back-up)
131 A.3.4 HSR timing diagram for PTP messages
Figure A.21 – PTP messages sent and received by an HSR node (1-step)
132 A.3.5 HSR nodes specifications
Figure A.22 – PTP messages sent and received by an HSR node (2-step)
134 A.4 HSR RedBoxes for PTP
A.4.1 HSR-SAN RedBox
Figure A.23 – Attachment of a GC to an HSR ring through a RedBox as TC and BC
135 A.4.2 HSR-PRP RedBox connection by BC
136 Figure A.24 – PRP to HSR coupling by BCs
137 A.4.3 HSR-PRP RedBox connection by TC
138 Figure A.25 – PRP to HSR coupling by DATC and SLTC
139 A.4.4 HSR to HSR connection by QuadBoxes
Figure A.26 – HSR coupling to two PRP and one HSR network
140 A.5 Doubly attached clock specification
A.5.1 State machine
141 Figure A.27 – Port states including transitions for redundant operation
142 Table A.1 – States
143 A.5.2 Supervision of the port
Table A.2 – Transitions
Table A.3 – Variables
144 A.5.3 BMCA for paired ports
Figure A.28 – BMCA for redundant masters
145 A.5.4 Selection of the port state
A.6 PTP datasets for high availability
A.6.1 General
A.6.2 Data types
146 A.6.3 Datasets for OC or BC
154 A.6.4 Datasets for TCs
155 Annex B (normative)PTP profile for Power Utility Automation (PUP) –Redundant clock attachment
B.1 Application domain
B.2 PTP profile specification
B.3 Specifications
B.4 Redundant clock attachment
156 Annex C (normative)PTP industry profiles for high-availability automation networks
C.1 Application domain
C.2 PTP profile specification
157 C.3 Clock types
C.4 Protocol specification common
C.4.1 Base protocol
C.4.2 Version control
158 C.4.3 Time scale
C.4.4 BMCA
C.4.5 Time correction mechanism
C.4.6 Management
C.4.7 1 PPS support
C.4.8 Leap second transition
C.4.9 Use of port number
159 C.4.10 Time distribution security
C.5 Protocol specification for L3E2E industry profile
C.5.1 Base protocol
C.5.2 Multicast address
C.5.3 Delay calculation mechanism
C.5.4 Sync message padding
160 C.6 Protocol specification for L2P2P industry profile
C.6.1 Base protocol
C.6.2 Delay measurement mechanism
C.6.3 Consideration of media converters
C.7 Common timing requirements for L2P2P and L3E2E
C.7.1 Measurement conditions
C.7.2 Network time inaccuracy
161 C.7.3 Response to time step changes
C.7.4 Requirements for GCs
Figure C.1 – Response to a time step
162 Table C.1 – ClockClass
163 C.7.5 Requirements for TCs
C.7.6 Requirements for BCs
164 Figure C.2 – States of a BC
166 C.8 Requirements for media converters
C.9 Requirements for links
C.10 Network engineering
167 C.11 Default settings
168 C.12 Handling of doubly attached clocks
Table C.2 – PTP attributes
169 C.13 Protocol Implementation Conformance Statement (PICS) for PTP
C.13.1 PICS conventions
C.13.2 PICS for PTP
Table C.3 – PICS for clocks
171 C.14 Recommendations for time representation
C.14.1 Usage of flags in TimePropertyDS
172 C.14.2 UTC leap second transition
173 C.14.3 ALTERNATE_TIME_OFFSET_INDICATOR_TLV
Table C.4 – Transitions with an inserted leap second (UTC binary and C37.118)
Table C.5 – Transitions with a removed leap second (UTC binary and C37.118)
175 Table C.6 – ATOI transition to Pacific Summer Time (spring)
Table C.7 – ATOI transitions to Pacific Standard Time (autumn)
176 Table C.8 – Transitions with an inserted leap second in Pacific Standard Time
Table C.9 – Transitions with a removed leap second in Pacific Standard Time
177 Annex D (informative)Precision Time Protocol tutorial for the PTP Industrial profile
D.1 Objective
D.2 Precision and accuracy
Figure D.1 – Time error as a probability distribution function
178 D.3 PTP clock types
179 Figure D.2 – PTP principle with GC, TC and OC
180 D.4 PTP main options
Figure D.3 – PTP elements
181 D.5 Layer 2 and layer 3 communication
D.6 1-step and 2-step correction
D.6.1 Time correction in TCs
Figure D.4 – Delays and time-stamping logic in TCs
182 D.6.2 2-step to 1-step translation
Figure D.5 – 1-step and 2-step correction of a Sync message (peer-to-peer)
183 Figure D.6 – Translation from 2-step to 1-step correction in TCs
184 D.7 End-to-End link delay measurement
D.7.1 General method
D.7.2 End-to-end link delay measurement with 1-step clock correction
Figure D.7 – Translation from 2-step to 1-step correction – message view
185 D.7.3 End-to-end link delay measurement with 2-step clock correction
Figure D.8 – End-to-end link delay measurement with 1-step correction
186 D.7.4 End-to-end link delay calculation by Delay_Req – Delay_Resp
D.7.5 Consideration of media converters in end-to-end delay calculation
Figure D.9 – End-to-end delay measurement with 2-step correction
187 D.8 Peer-to-peer link delay calculation
D.8.1 Peer-to-peer link delay calculation with 1-step correction
Figure D.10 – Peer-to-peer link delay measurement with 1-step correction
188 D.8.2 Peer-to-peer link delay calculation with 2-step correction
Figure D.11 – Peer-to-peer link delay measurement with 2-step correction
189 D.8.3 Consideration of media converters in peer delay calculation
190 Figure D.12 – Peer delay measurement and Sync message delay with media converter
191 Annex E (normative)Management Information base for singly and doubly attached clocks
219 Annex F (normative)Conformance testing for PRP and HSR and handlingof redundancy in PIP and PUP
F.1 General
F.2 PRP conformance test
F.2.1 PRP test set-up
220 F.2.2 PRP test components
F.2.3 Test for documentation and labelling
Figure F.1 – Test set-up for PRP
221 F.2.4 Test for (unicast) IP addresses
F.2.5 Test for configuration
Table F.1 – Test for PRP documentation and labelling
Table F.2 – Test for (unicast) IP addresses
222 F.2.6 Test of DANP
Table F.3 – Test for PRP configuration (Table 8)
Table F.4 – Test for PRP supervision frames (Table 4 and Table 5)
224 Table F.5 – Test for PRP tagging (4.1.10.2, 4.2.7.3)
225 Table F.6 – Test of a DANP without a NodesTable
Table F.7 – Test of a DANP with a NodesTable
226 F.2.7 Test of PRP Redboxes
Table F.8 – Test for discard over different ports
227 Table F.9 – Test for PRP supervision frames (Table 4 and Table 5)
Table F.10 – Test of RedBox for ProxyNodeTable
228 F.2.8 Test for Management
Table F.11 – Test of RedBox for forwarding
229 Table F.12 – Test for DANP receive/transmit counters
230 F.2.9 Test of DANP or RedBox for processing of PTP frames
Figure F.2 – Test set-up for PRP and PTP with L2P2P
232 Table F.13 – Test procedure for processing of PTP frames
233 Table F.14 – Test for processing of PTP frames
234 Table F.15 – Test for processing of PTP frames
235 F.3 HSR conformance test
F.3.1 HSR test set-up
Table F.16 – Test procedure for processing of PTP frames
236 F.3.2 HSR test components
F.3.3 Test for HSR documentation and labelling
Figure F.3 – Test set-up for HSR (without PTP)
237 F.3.4 Test of DANH or RedBox for IP addresses
F.3.5 Test of DANH for configuration
Table F.17 – Test for HSR documentation
Table F.18 – Test for IP addresses
238 F.3.6 Test of DANH
Table F.19 – Test procedure for HSR configuration (Table 11)
239 Table F.20 – Test for HSR supervision frames (Table 9 and Table 10)
240 Table F.21 – Test for HSR tagging
241 Table F.22 – Test of DANH for HSR Mode H multicast
Table F.23 – Test of DANH for HSR Mode H unicast
242 F.3.7 Test of HSR RedBoxes
Table F.24 – Test of DANH for other modes than Mode H
Table F.25 – Test of RedBox for HSR supervision frames (Table 9 and Table 10)
243 Table F.26 – Test of RedBox for ProxyNodeTable
Table F.27 – Test of RedBox for Mode H Unicast
244 F.3.8 Test of DANH or RedBox for receive/transmit counters
Table F.28 – Test of DANH or RedBox for receive/transmit counters
245 F.3.9 Test of DANH or RedBox for processing of PTP frames in L2P2P
Figure F.4 – Test set-up for HSR with L2P2P
246 Table F.29 – Test for processing of PTP frames (slave)
247 Table F.30 – Test for processing of PTP frames (master)
249 Bibliography

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BS EN IEC 62439-3:2022
$256.21