IEEE Std 802.3™-2022 Standard for Ethernet
Ethernet is the world’s most popular computer networking protocol used in local area network (LAN), metropolitan area network (MAN), and wide area network (WAN) communication. The IEEE 802.3 Ethernet Working Group develops Standards for wired networks where physical connections are made between nodes and/or infrastructure devices (hubs, switches, routers) with various types of optical fiber and copper cabling. Optical Ethernet applications supported by TIA building IT infrastructure Standards include:
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- Optical Fiber: Multimode
- Optical Fiber: Single-mode
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Plastic optical fiber or POF, commonly used in automotive Ethernet applications, and copper media types supporting Ethernet operation (i.e., balanced twisted‑pair cabling, twinaxial cabling, and electrical backplanes) are outside the purview of the TIA FOTC.
The first IEEE 802.3 Standard was published in 1983. New Ethernet projects publish as amendments to the base document and are incorporated into the parent document when a new revision publishes. Since 1983, there have been 9 revisions to IEEE Std 802.3. The latest version is IEEE Std 802.3™‑2022.
New IEEE 802.3 Ethernet applications defined in published amendments to the 2022 revision include:
| Application | Publication |
| PoDL Maintenance | Amendment 1: IEEE Std 802.3dd™‐2022: Power over Data Lines of Single Pair Ethernet |
| 10/2.5GBASE‑SP 10GBASE‑SP |
Amendment 2: IEEE Std 802.3cs™‐2022: Physical Layers and Management Parameters for Increased‑Reach Point-to-Multipoint Ethernet Optical Subscriber Access (Super‑PON) |
| 100GBASE-SR1 100GBASE-VR1 200GBASE-SR2 200GBASE-VR2 400GBASE-SR4 400GBASE-VR4 |
Amendment 3: IEEE Std 802.3db™‐2022: Physical Layer Specifications and Management Parameters for 100 Gb/s, 200 Gb/s, and 400 Gb/s Operation over Optical Fiber using 100 Gb/s Signaling |
| 100GBASE-CR1 100GBASE-KR1 200GBASE-CR2 200GBASE-KR2 400GBASE-CR4 400GBASE-KR4 |
Amendment 4: IEEE Std 802.3ck™‐2022: Physical Layer Specifications and Management Parameters for 100 Gb/s, 200 Gb/s, and 400 Gb/s Electrical Interfaces Based on 100 Gb/s Signaling |
| Time Synchronization Service Interface (TSSI) | Amendment 5: IEEE Std 802.3de™‐2022: Enhancements to MAC Merge and Time Synchronization Service Interface for Point‑to‑Point 10 Mb/s Single‑Pair Ethernet |
| Improved Timestamping Accuracy | Amendment 6: IEEE Std 802.3cx™‐2023: Media Access Control (MAC) Service Interface and Management Parameters to Support Improved Precision Time Protocol (PTP) Timestamping Accuracy |
| 2.5GBASE-AU 5GBASE-AU 10GBASE-AU 25GBASE-AU 50GBASE-AU |
Amendment 7: IEEE Std 802.3cz™‐2023: Physical Layer Specifications and Management Parameters for Multi‑Gigabit Optical Ethernet using Graded‑Index Glass Optical Fiber for Application in the Automotive Environment |
| 25GBASE-T1 | Amendment 8: IEEE Std 802.3cy™‐2023: Physical Layer Specifications and Management Parameters for 25 Gb/s Electrical Automotive Ethernet |
| 400GBASE-DR4-2 800GBASE-CR8 800GBASE-DR8 800GBASE-DR8-2 800GBASE-KR8 800GBASE-SR8 800GBASE-VR8 |
Amendment 9: IEEE Std 802.3df™‐2024: Media Access Control Parameters for 800 Gb/s and Physical Layers and Management Parameters for 400 Gb/s and 800 Gb/s Operation |
Developing IEEE 802.3 projects that will publish as amendments to the 2022 revision include:
| IEEE P802.3da: | Physical Layer Specifications and Management Parameters for Enhancement of 10 Mb/s Operation over Single Balanced-Pair Multidrop Segments |
| IEEE P802.3dg: | Physical Layer Specifications and Management Parameters for 100 Mb/s Operation and Associated Power Delivery over a Single Balanced-Pair of Conductors |
| IEEE P802.3dj: | Media Access Control Parameters for 1.6 Tb/s and Physical Layers and Management Parameters for 200 Gb/s, 400 Gb/s, 800 Gb/s, and 1.6 Tb/s Operation |
| IEEE P802.3dk: | Greater than 50 Gb/s Bidirectional Optical Access PHYs |
| IEEE P802.3dm: | Physical Layer Specifications and Management Parameters for Asymmetrical Electrical Automotive Ethernet |
| IEEE P802.3dn: | Corrigendum 1: Multi-Gigabit Automotive Medium Dependent Interface (MDI) Return Loss |
IEEE 802.3 projects that have been withdrawn include:
| IEEE P802.3cw: | Physical Layers and Management Parameters for 400 Gb/s Operation over DWDM (dense wavelength division multiplexing) Systems – Task Force disbanded |
| IEEE P802.3dh: | Physical Layer Specifications and Management Parameters for Multi-Gigabit Optical Ethernet using Graded-Index Plastic Optical Fiber for Application in the Automotive Environment) – Task Force disbanded |
Additional information on IEEE 802.3 Ethernet Working Group activities may be found here.