2.5GBASE-T and 5GBASE-T

IEEE 802.3bz, NBASE-T and MGBASE-T are standards released in 2016 for Ethernet over twisted pair at speeds of 2.5 and 5 Gbit/s. These use the same cabling as the ubiquitous Gigabit Ethernet, yet offer higher speeds. The resulting standards are named 2.5GBASE-T and 5GBASE-T.[1][2][3]

NBASE-T refers to Ethernet equipment that supports speeds of at least 2.5 Gbit/s and sometimes 5 or 10 Gbit/s, and that can automatically use training to operate at the best speed supported by the cable quality.[4] Usually it also supports additional link speeds (10, 100 or 1000 Mbit/s) in connection with autonegotiation, depending on the capabilities of the equipment at the other end of the cable.[citation needed]

  1. ^ "IEEE P802.3bz 2.5G/5GBASE-T Task Force". IEEE Standards Association.
  2. ^ "New IEEE P802.3bz Project Achieves Significant Milestone Towards Enabling Higher Speeds Over Installed Base of Twisted Pair Cabling". IEEE Standards Association. Archived from the original on 2017-07-08. Retrieved 2015-11-22.
  3. ^ "IEEE's 802.3BZ Task Force Mediates MGBASE-T and NBASE-T Alliances". Planetech USA. Archived from the original on 2015-11-22. Retrieved 2015-11-22.
  4. ^ "IEEE Standard for Ethernet," in IEEE Std 802.3-2022 (Revision of IEEE Std 802.3-2018) , p.5020, 29 July 2022, doi: 10.1109/IEEESTD.2022.9844436. Clause 126.1.3.1 Summary of Physical Coding Sublayer (PCS).