Through the IEEE Get program, the Institute of Electrical and Electronics Engineers has made IEEE 802.3bq, the standard for 2.5GBase-T and 5GBase-T, available for free download. The standard’s official title is IEEE 802.3bz – 2016: IEEE Standard for Ethernet Amendment 7: Media Access Control Parameters, Physical Layers, and Management Parameters for 2.5 Gb/s and 5 Gb/s Operation, Types 2.5GBASE-T and 5GBASE-T.
