Precision clock synchronization protocol

viginli

1. Overview............................................................................................................................................ 8
1.1 Scope........................................................................................................................................... 9
1.2 Purpose........................................................................................................................................ 9
2. References........................................................................................................................................... 9
3. Definitions..........................................................................................................................................10
4. Conventions .......................................................................................................................................12
4.1 Descriptive syntax.......................................................................................................................12
4.2 Word usage ................................................................................................................................12
4.3 Behavioral specification notation ...............................................................................................13
5. Datatypes in a PTP system..................................................................................................................15
5.1 Primitive datatypes......................................................................................................................15
5.2 Derived datatypes.......................................................................................................................16
6. PTP Clock synchronization model..................................................................................................... 17
6.1 Overview................................................................................................................................... 17
6.2 PTP systems............................................................................................................................. 21
7. PTP protocol specification................................................................................................................. 33
7.1 Protocol model of a clock .......................................................................................................... 33
7.2 Protocol model of a subdomain of PTP clocks.......................................................................... 35
7.3 State behavior of clocks............................................................................................................. 38
7.4 Clock data set............................................................................................................................ 42
7.5 Messaging and internal event behavior of clocks...................................................................... 54
7.6 Best master clock algorithm....................................................................................................... 71
7.7 Clock variance computation ...................................................................................................... 83
7.8 Local clock synchronization ...................................................................................................... 86
7.9 Values for system and clock constants. ..................................................................................... 89
7.10 Physical requirements for PTP implementations....................................................................... 91
7.11 PTP timing and event ordering constraints................................................................................ 91
7.12 Management message semantics ............................................................................................... 95
8. PTP inter-clock message formats....................................................................................................... 95
8.1 Inter-clock messages.................................................................................................................102
8.2 PTP message header specification............................................................................................102
8.3 Sync and Delay_Req messages.................................................................................................105
8.4 Follow_Up messages ............................................................................................................... 109
8.5 Delay_Resp messages.............................................................................................................. 110
8.6 Management messages............................................................................................................. 111
CONTENTS
【文件名】:07116@52RD_Precision clock synchronization protocol.pdf
【格　式】:pdf
【大　小】:1745K
【简　介】:
【目　录】:

viginli

1. Overview............................................................................................................................................ 8
1.1 Scope........................................................................................................................................... 9
1.2 Purpose........................................................................................................................................ 9
2. References........................................................................................................................................... 9
3. Definitions..........................................................................................................................................10
4. Conventions .......................................................................................................................................12
4.1 Descriptive syntax.......................................................................................................................12
4.2 Word usage ................................................................................................................................12
4.3 Behavioral specification notation ...............................................................................................13
5. Datatypes in a PTP system..................................................................................................................15
5.1 Primitive datatypes......................................................................................................................15
5.2 Derived datatypes.......................................................................................................................16
6. PTP Clock synchronization model..................................................................................................... 17
6.1 Overview................................................................................................................................... 17
6.2 PTP systems............................................................................................................................. 21
7. PTP protocol specification................................................................................................................. 33
7.1 Protocol model of a clock .......................................................................................................... 33
7.2 Protocol model of a subdomain of PTP clocks.......................................................................... 35
7.3 State behavior of clocks............................................................................................................. 38
7.4 Clock data set............................................................................................................................ 42
7.5 Messaging and internal event behavior of clocks...................................................................... 54
7.6 Best master clock algorithm....................................................................................................... 71
7.7 Clock variance computation ...................................................................................................... 83
7.8 Local clock synchronization ...................................................................................................... 86
7.9 Values for system and clock constants. ..................................................................................... 89
7.10 Physical requirements for PTP implementations....................................................................... 91
7.11 PTP timing and event ordering constraints................................................................................ 91
7.12 Management message semantics ............................................................................................... 95
8. PTP inter-clock message formats....................................................................................................... 95
8.1 Inter-clock messages.................................................................................................................102
8.2 PTP message header specification............................................................................................102
8.3 Sync and Delay_Req messages.................................................................................................105
8.4 Follow_Up messages ............................................................................................................... 109
8.5 Delay_Resp messages.............................................................................................................. 110
8.6 Management messages............................................................................................................. 111
CONTENTS
【文件名】:07116@52RD_Precision clock synchronization protocol.pdf
【格　式】:pdf
【大　小】:1745K
【简　介】:
【目　录】: