All roads lead to 25Gb! Check out mottibeck (Motti Beck):
In 2014, after the IEEE rejected the idea of standardizing 25GbE and 50GbE over one lane and two lanes respectively. It was then that a group of technology leaders (including Mellanox, Google, Microsoft, Broadcom, and Arista) formed the 25Gb Ethernet consortium in order to create an industry standard for defining interoperable solutions. The Consortium has been so successfully pervasive in its mission that many of the larger companies that had opposed standardizing 25GbE in the IEEE, have joined the 25GbE Consortium and are now top-level promoters. Since then, the IEEE has changed its original position and has now standardized 25/50GbE.
![2016_0604_fig1[1].jpg](http://community.mellanox.com/servlet/JiveServlet/downloadImage/2-6780-136925/2016_0604_fig1%5B1%5D.jpg)
