PresenTense Time Server

What is PresenTense Server
Quick Guide - NowTo
Network Time Synchronization
Time Protocols & Accuracy
Which Time Protocol is Right for Me ?
GPS Time Synchronization
Free Run Support
Standard Deviation Statistical Filter
System Requirements
About Tab
Settings  Tab
SNTP Time Source Tab
Admin Tab
Log Tab
Advanced Settings
Ntp4 Plug-In
NTP Time Source
NTP4 Plug-In Driver Troubleshooting
NTP4 Plug-In Driver Calibration
NTP4 Key Generator
NTP4 Plug-In Drivers
  TripNav TN-200
  Generic NMEA GPS
  Rapco GPS Receivers
  Symmetricom Time Source
  Symmetricom DCD/LPR
  Bytefusion InSync Master Clock
  Hopf PCI DCF77/GPS Receiver
  Hopf 6870 & Compatibles
  Undisciplined Local Clock
RFC 868
RFC 868
RFC 2030
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 Initialization Procedure Initialization-Instantiation Procedure Receive-Instantiation Procedure 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
PresenTense Time Client
PresenTense 98/95/ME Client
NTP Server Scanner
NMEA Recorder
NTP4 Query Command Line Tool
NTP Auditor
PresenTense NTP Auditor
NASD OATS Regulatory Compliance
About PresenTense Server
About Bytefusion Ltd.