Traditional data centers may be built on multiple fabrics, such as servers interconnected via Ethernet, storage networks built using FC, and high-performance computing clusters built using IB. With the innovation of Ethernet technology, such as lossless Ethernet, high-performance Ethernet cards supporting RDMA and MPI, NVMe over RoCE all flash storage systems, etc., Ethernet based data center network solutions are beginning to replace FC and IB solutions to provide equal or better performance. In addition, Ethernet solutions are usually more cost-effective and supported by more vendors. 400G Ethernet switches are becoming increasingly widely used, while FC switches typically only support up to 64G FC ports. Overall, modern data centers are transitioning from multi protocol mode to full Ethernet.
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Data Center Network Solutions for the AI Era
2025-08-27
In the field of high-performance computing, RoCE and InfiniBand are the two most popular computing interconnect protocols. Tolly engineers tested Huawei's lossless Ethernet and InfiniBand networks. The high-performance computing testing includes bandwidth and latency testing under congested conditions, MPI benchmark testing, and HPC application testing. I would like to introduce the network computing integrated function of Huawei's solution. This function can migrate some computing operations from computing nodes to network switching devices, thereby reducing computing cluster interaction, lowering network latency in HPC scenarios, and improving computing efficiency.
With the development of Ethernet, modern data centers are evolving towards full Ethernet. This is because Ethernet has gradually achieved lossless transmission, higher port bandwidth, higher cost-effectiveness, stronger ecosystem, and more future oriented advantages. Huawei's NoF+solution based on lossless Ethernet networks can increase storage IOPS by up to 93% and reduce latency by up to 49% compared to FC networks. Compared to IB network, Huawei's lossless Ethernet network can improve performance by up to 17% and reduce latency by up to 95%. Our test results indicate that in many test cases, Huawei's lossless Ethernet network solution in the hyper converged data center network can provide better performance than other solutions.
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