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RDMA over Converged Ethernet

RDMA is a feature of the Network Interface Card (NIC) that allows one computer to have direct memory access to another one bypassing the kernel. RDMA over Converged Ethernet (RoCE) brings the low-latency and efficiency benefits of InfiniBand to the data center Ethernet fabric. RoCE (pronounced "Rocky") is a link layer protocol that allows communication between two hosts in the same domain and that provides efficient data transfer with very low latencies on lossless Ethernet networks.


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