NTP Interleaved Modes

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Publisher: IETF
Doc Type: Standard
Pages: 13
Abstract: This document specifies interleaved modes for the Network Time Protocol (NTP). These new modes improve the accuracy of time synchronization by enabling the use of more accurate transmit timestamps that are available only after the transmission of NTP messages. These enhancements are intended to improve timekeeping in environments where high accuracy is critical. This document updates RFC 5905 by defining these new operational modes.
Publication Date: 2025-05-01
Status Note: Proposed Standard
DOI: 10.17487/RFC9769
Link: https://doi.org/10.17487/RFC9769
Author(s): Miroslav Lichvar
Aanchal Malhotra
Keyword(s): NTP, Interleaved Mode

Latest version of IETF RFC 9769

Document Versions — IETF RFC 9769

▶ IETF RFC 9769 (2025-05-01)

THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 5905 [Active*]
IETF RFC 8174 [Active*]

Bibliographic Reference(s)

Malhotra, A., Van Gundy, M., Varia, M., Kennedy, H., Gardner, J., and S. Goldberg, "The Security of NTP's Datagram Protocol", Cryptology ePrint Archive, Paper 2016/1006, 2016, <https://eprint.iacr.org/2016/1006>. EXTERNAL
RFC5906 — RFC5906 EXTERNAL
IETF RFC 7384 [Active*]
IETF RFC 9109 [Active*]

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IETF RFC 9769, NTP Interleaved Modes
doi: 10.17487/RFC9769
url: https://doi.org/10.17487/RFC9769

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