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6000-100AppA.fm Rev. C TimeVault™ User’s Manual A-95
SNTP V 3.0 Data Format per RFC-2030 Appendix A: NTP Version 3, NTPQ, and NTPDC
A.2 SNTP V 3.0 Data Format per RFC-2030
When TimeVault replies to requests from SNTP clients, the packet format is the same as
the NTP packet format described above, with the following differences:
• Leap Indicator
TimeVault sets these 2 bits to either 0 (normal) or 3 (unsynchronized) only
• Version Number
TimeVault copies this field from the client request packet and returns it in this field.
• Reference Timestamp
This field is set to the time that the reply left TimeVault’s server host.
• Receive Timestamp
This field is set to the time that the reply left TimeVault’s server host.
• Transmit Timestamp
This field is set to the time that the reply left TimeVault’s server host.
• Authenticator
This field is not used in SNTP.