ISO/IEC/IEEE 8802-1AS:2021/Amd 1:2025

International
Standard
ISO/IEC/IEEE
8802-1AS
Second edition
Information technology —
2021-11
Telecommunications and
information exchange between
AMENDMENT 1
systems — Local and metropolitan
2025-04
area networks —
Part 1AS:
Timing and synchronization for
time-sensitive applications in
bridged local area networks
AMENDMENT 1: Inclusive terminology
Technologies de l'information — Télécommunications et
échange d'information entre systèmes — Réseaux locaux et
métropolitains —
Partie 1AS: Temporisation et synchronisation pour les
applications sensibles au temps des réseaux locaux pontés
AMENDEMENT 1: Terminologie inclusive
Reference number
ISO/IEC/IEEE 8802-1AS:2021/
Amd.1:2025(en)
© IEEE 2024
ISO/IEC/IEEE 8802-1AS:2021/Amd.1:2025(en)
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ISO/IEC/IEEE 8802-1AS:2021/Amd.1:2025(en)
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iii
Title page
IEEE Std 802.1ASdr™-2024
(Amendment to IEEE Std 802.1AS™-2020
as amended by IEEE Std 802.1AS™-2020/Cor 1-2021)
IEEE Standard for
Local and Metropolitan Area Networks—
Timing and Synchronization for
Time-Sensitive Applications
Amendment 1: Inclusive Terminology
Developed by the
LAN/MAN Standards Committee
of the
IEEE Computer Society
Approved 15 February 2024
IEEE SA Standards Board
ISO/IEC/IEEE 8802-1AS:2021/Amd.1:2025(en)
Abstract: This amendment to IEEE Std 802.1AS™-2020 replaces terminology with alternative
terminology identified by IEEE Std 1588g™-2022. All changes made in figures are only to replace
terminology.
Keywords: amendment, best timeTransmitter, frequency offset, Grandmaster Clock, Grandmaster
PTP Instance, IEEE 802.1AS™, IEEE 802.1ASdr™, phase offset, PTP End Instance, PTP Relay
Instance, synchronization, syntonization, time-aware system
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