In today’s networks, a traditional subnet manager will recognize failed links and recalculate routes to avoid the problem, but this can take up to 5 seconds for 1,000 nodes and 30 seconds for clusters with 10,000 or more nodes—not fast enough to keep an application running seamlessly. The self-healing network capabilities of NVIDIA Quantum InfiniBand switches overcome link failures, enabling network recovery much faster than any other software-based solution.
https://www.nvidia.com/en-us/networking/products/infiniband/
https://www.nvidia.com/en-us/networking/products/infiniband/
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