Within the CPU complex, the four Kunpeng CPU sockets are interconnected via a full-mesh NUMA topology, enabling uniform memory access across all CPU-attached DRAM. One of the CPUs hosts the node’s Qingtian card, a dedicated data processing unit (DPU) that not only integrates highspeed network interfaces but also performs essential node-level resource management functions. This Qingtian card serves as the primary north–south egress point from the node, interfacing with the third distinct network plane: the datacenter’s VPC plane.