InfiniBand or Ethernet for AI? A Decision Framework That Holds Up
InfiniBand or Ethernet?DECIDE FROM WORKLOAD + OPERATING MODELX4 NETWORKSDecision dimensionInfiniBandEthernet / RoCEWorkload fitLargest tightly coupled training clustersAI plus cloud-native and IP-integrated workloadsCongestion controlCredit-based lossless fabricPFC, ECN/CNP, adaptive routingOperationsUFM, subnet management,…