25 Gigabit Ethernet
25 Gigabit Ethernet (25GbE) and 50 Gigabit Ethernet (50GbE) are proposed standards for Ethernet connectivity in a datacenter environment. An industry consortium has been formed to promote the technology and IEEE 802 workgroup has formed to develop the standard.[1][2]
The draft uses technology defined for 100 Gigabit Ethernet implemented as four 25-Gbit/s lanes (IEEE 802.3bj).[3][4]
IEEE 802.3 has formed an 802.3by task force[5] with the objectives to define:[6]
- a single-lane 25 Gbit/s 25GBASE-KR PHY for printed circuit backplanes
- a single-lane 25 Gbit/s 25GBASE-CR-S PHY for 3 m twin-ax cables (in-rack)
- a single-lane 25 Gbit/s 25GBASE-CR-L PHY for 5 m twin-ax cables (inter-rack)
- a single-lane 25 Gbit/s 25GBASE-SR PHY for 100 m OM4 multi-mode optical fiber
References
- ↑ Rick Merritt (2014-07-21). "25G Ethernet on Tap at IEEE". Retrieved 2014-09-29.
- ↑ "IEEE 802.3 25 Gb/s Ethernet Study Group Public Area". IEEE 802.3. 2014-10-29. Retrieved 2014-12-31.
- ↑ "Overview 25G & 50G Ethernet Specification, Draft 1.4". 25G Ethernet Consortium. 2014-09-11. Retrieved 2014-12-31.
- ↑ Stephen Hardy (July 23, 2014). "IEEE launches 25 Gigabit Ethernet Study Group". LightWave. Retrieved 2014-09-29.
- ↑ IEEE 802.3by 25 Gb/s Ethernet Task Force
- ↑ http://www.ieee802.org/3/by/P802_3by_Objectives.pdf
External links
- 25G Ethernet Consortium
- "What is 25 Gigabit Ethernet and why would you want it?". Retrieved 2014-09-29.
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