RDMA stands for Remote Direct Memory Access. The version that runs on ethernet is known as RDMA over Converged Ethernet, or RoCE. Until recently, the most com

RDMA stands for Remote Direct Memory Access. The version that runs on ethernet is known as RDMA over Converged Ethernet, or RoCE. Until recently, the most common hardware interconnect used to support RDMA was Infiniband. Omnipath existed for a while. The point is: RDMA is just a term for a computer reading memory on another computer without involving the operating system. The interconnect hardware and physical transport must support RDMA but that doesn't mean it is RDMA, as there are several different implementations of RDMA, and each kind of hardware supports a different subset of those implementations.