Hi All, While looking for 10G switches for ROACH2, Dell was trying to convince me to get their S6000 40G switch instead of the S4810 10G switch. The argument is simple: S6000 has double the switching bandwidth, lower latency (600ns vs 800ns) and most importantly a lower price tag! Each 40G port can be spilt into 4 10G ports using a special QSFP+ to 4SFP+ cable.
But with all my infrastructure equipped with SFP+ 10G ethernet, the cabling is going to be a big mess with the split cable. Not to mention the saving in switch will most likely come back in the form of multiple special split cables. So my question: * Anybody has experience using QSFP+ and 40G switch with ROACH2 or in other settings? * What do you feel about the prospect of 40G with QSFP+ in the near future? --Hayden /********************************************************** * Hayden Kwok-Hay So * Assistant Professor * Department of Electrical and Electronic Engineering * The University of Hong Kong * Room 516, Chow Yei Ching Building * Pokfulam Road, Hong Kong * http://www.eee.hku.hk/~hso **********************************************************/
