Standard

IEEE 802.1AS-2025

Published

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Abstract

Revision Standard - Active. Protocols, procedures, and managed objects for the transport of timing over local area networks are defined in this standard. It includes the transport of synchronized time, the selection of the timing source (i.e., best timeTransmitter), and the indication of the occurrence and magnitude of timing impairments (i.e., phase and frequency discontinuities).

Document information

  • Standard from IEEE
  • Published:
  • Document type: IS
  • Publisher IEEE
  • Distributor IEEE
  • ICS 35.110
  • Technical Committee IEEE Computer Society / LAN/MAN Standards Committee

Product Relations

  • Referred by: IEEE 1722-2025
  • Refers: IEEE 1588e-2024
  • Refers: IEEE 802.1Q-2022
  • Refers: IEEE 802.3-2022
  • Refers: IEEE 1588-2019
  • Refers: IEEE 802.1AX-2020
  • Refers: IEEE 754-2019
  • Refers: IEEE 802.1AC-2016
  • Refers: ITU-T Recommendation G.9961 (Nov. 2018), Unified high-speed wireline-based home networking transceivers--Data link layer specification [with ITU-T G.9960, commonly referred to as “ITU-T G.hn”].
  • Refers: IETF RFC 3418 (STD 62), Management Information Base (MIB) for the Simple Network Management Protocol (SNMP), Presuhn, R., ed, Dec. 2002.
  • Refers: (G-PON): Transmission convergence layer specification--Time-of-day distribution and maintenance updates and clarifications.
  • Refers: MoCA® MAC/PHY Specification v2.0, MoCA-M/P-SPEC-V2.0-20100507, Multimedia over Coax Alliance (MoCA).
  • Refers: ISO 80000-3:2006, Quantities and units--Part 3: Space and time.
  • Refers: IERS Bulletin C (see https://www.iers.org/IERS/EN/Publications/Bulletins/bulletins.html).
  • Refers: ITU-T Recommendation G.9960 (Nov. 2018), Unified high-speed wire-line based home networking
  • Refers: IETF RFC 3410, Introduction and Applicability Statements for Internet Standard Management Framework, Case, J., R. Mundy, D. Partain, and B. Stewart, Dec. 2002.
  • Refers: IETF RFC 7950, The YANG 1.1 Data Modeling Language, Bjorklund, M., ed, Aug. 2016.
  • Refers: transceivers--System architecture and physical layer specification [with ITU-T G.9961, commonly referred to as “ITU-T G.hn”].
  • Refers: ITU-T Recommendation G.984.3 (Nov. 2009), Amendment 2, Gigabit-capable Passive Optical Networks