Symmetricom Time Server - Manual (Page 108)

A-94 TimeVault™ User’s Manual 6000-100AppA.fm Rev. C
Appendix A: NTP Version 3, NTPQ, and NTPDC NTP V 3.0 Data Format per RFC-1305
Table A-2 Local Time Source Input
Reference Timestamp
The reference timestamp is a 64 bit timestamp format representing the local time at the
last update. TimeVault’s reference timestamp is the last time that a valid synchronization
source signal was present.
Originate Timestamp
The originate timestamp is a 64 bit timestamp format representing the time that the request
left the client host.
Receive Timestamp
The receive timestamp is a 64 bit timestamp format representing the time that the request
arrived at the service host.
Transmit Timestamp
The transmit timestamp is a 64 bit timestamp format representing the time that the reply
left the service host.
Authenticator
This is a 96-bit field containing the authenticator information as described in Appendix C
of RFC-1305. This field is not implemented by TimeVault.
Local Time Source Input Reference Identifier String
GPS "GPS"
ACTS "ACTS"
NTP "NTP"