iWARP: From Clusters to Cloud RDMA

This paper presents an overview of the evolution of iWARP, the standard for RDMA over Ethernet. By going over the history of iWARP, the paper traces the developments that made iWARP a potent high performance replacement for InfiniBand, a true plug-and-play solution that maintains the same APIs while enabling Internet wide scalability. Looking forward, the elimination of the performance gap with IB, coupled with the familiarity and benefits of Ethernet and the scalability and resiliency of TCP/IP, destine Ethernet with iWARP to overtake InfiniBand, as it consistently did with competing technologies.