I bet my lunch the front end is RoCE based, its cool to see the dice start to fall on fNVMe.
Hard to tell because its early days for the whole stack, but RoCE looks like the better horse to bet then NVMe over FC which, from what i have seen, repackages all the RDMA stuff into a more standard request/responce structure to keep packet size similar. wether or not thats a big enough crutch to burry the protocol remains to be seen.
if they end up using iSER i will cry forever. God i hate iSCSI.
Disclaimer: I am a frequently incorrect protocol nerd.