BS EN 62439-3:2010
$198.66
Industrial communication networks. High availability automation networks – Parallel redundancy protocol (PRP) and high availability seamless redundancy (HSR)
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 64 |
The IEC 62439 series 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 two redundancy protocols based on the duplication of the LAN, resp. duplication of the transmitted information, designed to provide seamless recovery in case of single failure of an inter-switch link or switch in the network.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 7 | CONTENTS |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references 3 Terms, definitions, abbreviations, acronyms, and conventions 3.1 Terms and definitions |
| 12 | 3.2 Abbreviations and acronyms 3.3 Conventions 4 Parallel Redundancy Protocol (PRP) 4.1 PRP principle of operation |
| 13 | Figures Figure 1 – PRP example of general redundant network |
| 14 | Figure 2 – PRP example of redundant network as two LANs (bus topology) Figure 3 – PRP example of redundant ring with SANs and DANPs Figure 4 – PRP with two DANPs communicating |
| 16 | Figure 5 – PRP RedBox, transition from single to double LAN |
| 18 | Figure 6 – PRP frame extended by an RCT Figure 7 – PRP VLAN-tagged frame extended by an RCT |
| 19 | Figure 8 – PRP constructed, padded frame closed by an RCT |
| 20 | Figure 9 – PRP drop window on LAN_A Figure 10 – PRP drop window reduction after a discard |
| 21 | Figure 11 – PRP frame from LAN_B was not discarded Figure 12 – PRP synchronized LANs |
| 22 | 4.2 PRP protocol specifications |
| 28 | Tables Table 1 – PRP_Supervision frame with VLAN tag |
| 30 | 4.3 PRP service specification Table 2 – PRP constants |
| 31 | Table 3 – PRP arguments |
| 32 | Table 4 – PRP arguments Table 5 – PRP write |
| 33 | 5 High-availability Seamless Redundancy (HSR) 5.1 HSR objectives 5.2 HSR principle of operation Table 6 – PRP read |
| 35 | Figure 13 – HSR example of ring configuration for multicast traffic |
| 36 | Figure 14 – HSR example of ring configuration for unicast traffic |
| 37 | Figure 15 –HSR structure of a DANH |
| 38 | Figure 16 – HSR example of topology using two independent networks |
| 39 | Figure 17 – HSR example of peer coupling of two rings |
| 40 | Figure 18 – HSR example of connected rings |
| 41 | Figure 19 – HSR example of coupling two redundant PRP LANs to a ring |
| 42 | Figure 20 – HSR example of coupling from a ring node to redundant PRP LANs |
| 43 | Figure 21 – HSR example of meshed topology |
| 44 | Figure 22 – HSR structure of a RedBox |
| 45 | 5.3 HSR node specifications |
| 47 | 5.4 HSR RedBox specifications |
| 50 | 5.5 QuadBox specification 5.6 Association definition 5.7 Frame format for HSR |
| 51 | Figure 23 – HSR frame without VLAN tag Figure 24 – HSR frame with VLAN tag |
| 52 | Table 7 – HSR_Supervision frame with optional VLAN tag |
| 53 | Table 8 – HSR Constants |
| 54 | 6 Protocol Implementation Conformance Statement (PICS) 7 PRP/HSR Management Information Base (MIB) |
| 58 | Annex A (informative) PRP duplicate discard algorithm as pseudo-code |
| 61 | Bibliography |
