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iv S100 User Guide – Rev. D – June 2005
1
SyncServer S100
SyncServer Help 84
NTPD Help 84
Search NTPD Manual 84
Logging Off 85
Chapter 5
Operations & Time-Protocols 87
S100: Operations and Time Protocols 87
Sysplex Timer 87
Time Protocol (RFC 868) 89
Daytime Protocol (RFC 867) 89
Simple Network Time Protocol (RFC 2030) 90
Network Time Protocol (RFC 1305) 90
NTP Authentication 93
Authentication: NTP v3 93
Authentication: NTP v4 Autokey 94
Public Domain NTP Package 94
Typical NTP Configuration Considerations 94
Other NTP Considerations 95
Clients 95
Basic NTP Configuration 96
Peers 103
Security 103
ACTS Interface: Dial-up 103
ACTS Operation 104
SNMP (Simple Network Management Protocol) 104
Version 1 105
Version 3 106
Chapter 6
Frequently Asked Questions 109
Questions 109
How can we obtain NTP client software to use with the S100? 109
What are the main differences between SNTP and NTP clients? 109
Is there a way to get GPS time instead of UTC time from the S100? 109
What outputs are available on the S100? 109
How does the S100 handle Leap Second? 110
What signal strengths are required by the S100 receiver to start tracking? 110
How do I check versions of the software in the S100? 110
What is the maximum number of computers that can be networked to the
S100? 110