IEEE 1904.4-2025

This standard describes the system-level requirements needed to provide service-level, multi-vendor interoperability of Ethernet Passive Optical Network (EPON) equipment. The specifications complement the existing IEEE 802.3™ and IEEE 802.1™ standards, which enable the interoperability at the Physical Layer and Data Link Layer.6 Specifically included in this specification are as follows: --EPON system-level interoperability specifications covering equipment functionality, traffic engineering, and service-level quality of service/class of service (QoS/CoS) mechanisms --Management specifications covering equipment management, service management, and EPON power‐saving mechanisms

This standard builds upon the IEEE Std 802.3ca (25G-EPON and 50G-EPON) Physical Layer and Data Link Layer standards and creates a system-level and network-level standard, thus allowing full "plug-and-play" interoperability of the transport, service, and control planes in a multi-vendor environment.

New IEEE Standard - Active. The system-level requirements needed to help ensure service-level, multi-vendor interoperability of Ethernet Passive Optical Network (EPON) equipment are described in this standard. The existing IEEE 802.3 and IEEE 802.1 standards, which help ensure interoperability at the Physical Layer (PHY) and Data Link Layer, are complemented by the specifications. Specifically included in this specification are as follows --EPON system-level interoperability specifications covering equipment functionality, traffic engineering, and service-level quality of service/class of service (QoS/CoS) mechanisms --Management specifications covering equipment management, service management, and EPON power‐saving mechanisms