Three-tier RoCE network topology with dual 400Gbps core switches, three 200Gbps aggregation switches, and four compute nodes featuring 100Gbps NICs for ultra-low-latency RDMA communication. Traffic flows from compute nodes through aggregation switches to redundant core switches, enabling full-mesh connectivity and eliminating single points of failure. This architecture delivers sub-microsecond latency and lossless Ethernet critical for HPC, AI training, and real-time analytics workloads. Fork this diagram on Diagrams.so to customize port counts, add QoS policies, or integrate with your fabric management tools. Consider adding spine-leaf variants or congestion control mechanisms like PFC for production deployments.