AI Cyberspace

Feb 13, 2025 · Fundamentals

Understanding InfiniBand RDMA: Architecture, Advantages, and NVIDIA Quantum-2

InfiniBand RDMA, designed to network server buses, offers high bandwidth and ultra‑low latency through zero‑copy, kernel‑bypass communication, with a layered architecture (L1‑L5) and hardware components like Quantum‑2 Switch, ConnectX‑7 RNIC, and SHARP acceleration, supported by the Verbs API and OFED stack.