- Overview
- Configuration
- NTP4 Plug-In
- Hardware
- RFC 868
- RFC 2030
-
RFC 1305
- RFC 1305
- 1. Introduction
- 1.1 Related Technology
- 2. System Architecture
- 2.1 Implementation Model
- 2.2 Network Configurations
- 3. Network Time Protocol
- 3.1 Data Formats
- 3.2 State Variables and Parameters
- 3.2.1 Common Variables
- 3.2.2 System Variables
- 3.2.3 Peer Variables
- 3.2.4 Packet Variables
- 3.2.5 Clock-Filter Variables
- 3.2.6 Authentication Variables
- 3.2.7 Parameters
- 3.3 Modes of Operation
- 3.4 Event Processing
- 3.4.1 Notation Conventions
- 3.4.2 Transmit Procedure
- 3.4.3 Receive Procedure
- 3.4.4 Packet Procedure
- 3.4.5 Clock-Update Procedure
- 3.4.6 Primary-Clock Procedure
- 3.4.7 Initialization Procedures
- 3.4.7.1 Initialization Procedure
- 3.4.7.2 Initialization-Instantiation Procedure
- 3.4.7.3 Receive-Instantiation Procedure
- 3.4.7.4 Primary Clock-Instantiation Procedure
- 3.4.8 Clear Procedure
- 3.4.9 Poll-Update Procedure
- 3.5 Synchronization Distance Procedure
- 3.6 Access Control Issues
- 4. Filtering and Selection Algorithms
- 4.1 Clock-Filter Procedure
- 4.2 Clock-Selection Procedure
- 4.2.1 Intersection Algorithm
- 4.2.2. Clustering Algorithm
- 5. Local Clocks
- 5.1 Fuzzball Implementation
- 5.2 Gradual Phase Adjustments
- 5.3 Step Phase Adjustments
- 5.4 Implementation Issues
- 6. Acknowledgments
- 7. References
- Appendix A
- Appendix B
- Appendix C
- Appendix D
- Appendix E
- Appendix F
- Appendix G
- Appendix H
- Appendix I
- Time Tools
- NTP Auditor
- About
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Windows Time Server
NTP4 Query Command Line ToolThe NTP4 Query Command Line Tool allows you to troubleshoot and benchmark the performance of the NTP4 Plug-in. This tool is included free with PresenTense Time Server. To view all available commands, type "help". To view the current synchronization status of your computer, type "peer" - this will display important information about each remote accurate time source. Some important parameters are documented below :
reach - a positive value indicates if PresenTense has been able to communicate with this server.
offset - this value denotes the current clock offset to the accurate time source in milliseconds.
jitter - this value denotes the variance in server response times.
Please note that it is normal for the NTP4 Plug-in to observe your system clock drift for several minutes before making its first system time adjustment. The NTP4 query command line tool is a companion program of the NTP4 Plug-in.
