IEC61375-3-4-2014.PDF（Page254全英文）_IEC61375

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IEC 61375-3-4

Edition 1.0 2014-03

INTERNATIONAL

STANDARD

NORME

INTERNATIONALE

Electronic railway equipment – Train communication network (TCN) –

Part 3-4: Ethernet Consist Network (ECN)

Matériel électronique ferroviaire – Réseau embarqué de train (TCN) –

Partie 3-4: Réseau Ethernet de Rame (ECN)

IEC 61375-3-4:2014-03(en-fr)

colour

inside

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– 2 – IEC 61375-3-4:2014 © IEC 2014

CONTENTS

FOREWORD ........................................................................................................................... 9

INTRODUCTION ................................................................................................................... 11

1 Scope ............................................................................................................................ 12

2 Normative references .................................................................................................... 12

3 Terms, definitions, symbols, abbreviations and conventions .......................................... 13

3.1 Terms and definitions ....................................................................................... 13

3.2 Symbols and abbreviated terms ....................................................................... 14

3.3 Conventions ..................................................................................................... 17

3.3.1 Bit numbering conventions .............................................................. 17

3.3.2 Byte order conventions ................................................................... 17

3.3.3 Data types ...................................................................................... 17

4 Common part ................................................................................................................. 18

4.1 General ............................................................................................................ 18

4.2 Architecture ..................................................................................................... 18

4.2.1 Network structure ........................................................................... 18

4.2.2 Network topology ............................................................................ 19

4.2.3 End Device classes ........................................................................ 20

4.2.4 Network Device types and Consist Switch classes .......................... 21

4.3 Data class ........................................................................................................ 22

4.4 Functions and services .................................................................................... 23

4.5 Redundancy ..................................................................................................... 24

4.5.1 General .......................................................................................... 24

4.5.2 Definitions ...................................................................................... 25

4.5.3 Redundancy managed at network level ........................................... 25

4.5.4 Redundancy managed at End Device level ..................................... 26

4.6 Quality of service ............................................................................................. 27

4.6.1 General .......................................................................................... 27

4.6.2 Priority level ................................................................................... 27

4.6.3 Assignment of priority level ............................................................. 28

4.6.4 Consist Switch behavior ................................................................. 28

4.6.5 Ingress rate limiting ........................................................................ 28

4.6.6 Egress rate shaping ........................................................................ 29

4.7 IP address and related definitions .................................................................... 29

4.7.1 Consist Network address ................................................................ 29

4.7.2 Train Network Address ................................................................... 29

4.7.3 Group Address ............................................................................... 30

4.7.4 Name resolution and naming definitions ......................................... 30

4.8 IP address and network configuration management ......................................... 31

4.8.1 Consist Network address management ........................................... 31

4.8.2 Train network address management ............................................... 31

4.8.3 Static network configuration parameters ......................................... 32

4.8.4 DHCP configuration parameters ..................................................... 32

4.8.5 IP address management for TBN redundancy ................................. 33

4.9 Network Device interface ................................................................................. 34

4.9.1 General .......................................................................................... 34

4.9.2

Function requirements .................................................................... 34

4.9.3 Performance requirements .............................................................. 36

4.9.4 Physical Layer ................................................................................ 36

4.9.5 Link Layer ....................................................................................... 39

4.9.6 Network Layer ................................................................................ 39

4.9.7 Transport Layer .............................................................................. 39

4.9.8 Application layers ........................................................................... 40

4.10 End Device interface ........................................................................................ 40

4.10.1 General .......................................................................................... 40

4.10.2 Physical Layer ................................................................................ 42

4.10.3 Link Layer ....................................................................................... 43

4.10.4 Network layer ................................................................................. 43

4.10.5 Transport Layer .............................................................................. 43

4.10.6 Application layer ............................................................................. 43

4.11 Gateway functions ........................................................................................... 44

4.11.1 WTB gateway functions .................................................................. 44

4.11.2 ETB gateway functions ................................................................... 44

4.12 Network management ...................................................................................... 45

4.12.1 ECN network management ............................................................. 45

4.12.2 WTB network management ............................................................. 45

4.12.3 ETB network management .............................................................. 45

5 Conformance test .......................................................................................................... 45

Annex A (informative) Reliability and availability comparison between ECN

architectures.................................................................................................................. 46

A.1 General ............................................................................................................ 46

A.2 Failure cases ................................................................................................... 46

A.2.1 Definitions ...................................................................................... 46

A.2.2 Example of failure cases – Linear topology ..................................... 47

A.2.3 Example of failure cases – Parallel networks .................................. 48

A.2.4 Example of failure cases – Ring topology ....................................... 49

A.2.5 Example of failure cases – Ladder topology .................................... 50

A.3 Redundancy level of ECN architecture ............................................................. 52

A.4 Reliability analysis of redundancy level ............................................................ 53

A.5 Redundancy of End Devices ............................................................................ 55

Annex B (informative) Railway-Network Address Translation (R-NAT) ................................. 57

B.1 General ............................................................................................................ 57

B.2 Local Consist subnet IP address ...................................................................... 57

B.3 TBN R-NAT ...................................................................................................... 58

B.4 Interoperability issue between TBNs ................................................................ 58

Annex C (normative) Transceiver with amplified signals protocol definition .......................... 60

C.1 General ............................................................................................................ 60

C.2 Type A: Transceiver with amplified signals for Physical Layer based on

IEEE 802.3 (10BASE-T) ................................................................................... 60

C.2.1 General .......................................................................................... 60

C.2.2 Transceiver unit .............................................................................. 60

C.2.3 Transmission signal characteristics ................................................ 61

C.2.4 Reception signal characteristics ..................................................... 64

C.3 Type B: Transceiver with amplified signals for Physical Layer based on

IEEE 802.3 (100BASE-TX) ............................................................................... 65

剩余253页未读，继续阅读

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