{"title":"Networking","description":"\u003ch2\u003eThe Interconnect Layer Is Where AI Clusters Win or Lose\u003c\/h2\u003e\n\n\u003cp\u003eHere's a number that changes how you think about networking: in a distributed AI training job, \u003cstrong\u003eup to 40% of total training time can be spent on gradient synchronization across nodes\u003c\/strong\u003e. Not compute. Not storage I\/O. Network. The bandwidth, latency, and topology of your interconnect fabric directly determines how efficiently your GPU cluster trains — and how much of your hardware investment you're actually using.\u003c\/p\u003e\n\n\u003cp\u003eThis is why DVUN treats networking as a first-class infrastructure discipline, not an afterthought. Our Networking collection covers the full physical layer of AI cluster interconnect: high-radix switches for spine-leaf topologies, high-speed NICs for GPU-to-GPU communication, optical transceivers for long-reach and high-density cabling, DAC and AOC cables for short-reach high-bandwidth links, and the accessories that hold it all together reliably.\u003c\/p\u003e\n\n\u003cp\u003eWhether you're building a 4-node training cluster or a 200-node private AI cloud, the networking decisions you make here will define your system's scalability ceiling and your operational complexity for years to come.\u003c\/p\u003e\n\n\u003ch3\u003eCore Capabilities Across the DVUN Networking Collection\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e100G \/ 200G \/ 400G \/ 800G Switch Fabrics:\u003c\/strong\u003e Spine and leaf switching platforms for AI cluster topologies, with RDMA and RoCEv2 support for GPU-direct communication.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Speed NICs:\u003c\/strong\u003e 25GbE to 400GbE network interface cards with RDMA offload, SR-IOV, and GPUDirect RDMA support for low-latency GPU cluster networking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptical Transceivers:\u003c\/strong\u003e QSFP28, QSFP-DD, and OSFP modules for 100G to 800G links, with verified compatibility across major switch and NIC platforms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDAC \u0026amp; AOC Cables:\u003c\/strong\u003e Direct attach copper and active optical cables for short-reach, high-density rack and inter-rack connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNetwork Accessories:\u003c\/strong\u003e SFP adapters, fiber patch panels, cable management, and diagnostic tools to complete your network build.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTwo Architectures, One Collection\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFor Training Clusters:\u003c\/strong\u003e High-bandwidth, low-latency all-to-all communication is the priority. Our 400G switch platforms and RDMA-capable NICs are selected for exactly this topology. See our \u003ca href=\"\/collections\/switches\"\u003eSwitches\u003c\/a\u003e and \u003ca href=\"\/collections\/nics\"\u003eNICs\u003c\/a\u003e for the core components of a training fabric.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor Inference Infrastructure:\u003c\/strong\u003e Throughput and connection density matter more than all-to-all latency. Our 100G and 25G switching and NIC options provide cost-effective, high-density connectivity for inference serving clusters. Pair with our \u003ca href=\"\/collections\/ai-storage-nodes\"\u003eAI Storage Nodes\u003c\/a\u003e for a complete inference infrastructure build.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications Overview\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch port speeds: 25GbE, 100GbE, 200GbE, 400GbE, 800GbE\u003c\/li\u003e\n\u003cli\u003eNIC speeds: 10GbE to 400GbE per port\u003c\/li\u003e\n\u003cli\u003eOptical module form factors: SFP+, QSFP28, QSFP-DD, OSFP\u003c\/li\u003e\n\u003cli\u003eCable types: DAC (passive\/active), AOC, MPO trunk cables\u003c\/li\u003e\n\u003cli\u003eProtocol support: Ethernet, InfiniBand, RoCEv2, RDMA\u003c\/li\u003e\n\u003cli\u003eManagement: OpenConfig, SONIC, and vendor NOS options on switch platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNetwork Fast. Scale Further.\u003c\/h3\u003e\n\u003cp\u003eYour GPU cluster is only as fast as the network connecting it. DVUN's networking collection gives you the hardware to build an interconnect fabric that matches the ambition of your compute investment. \u003ca href=\"\/pages\/request-a-quote\"\u003eRequest a quote\u003c\/a\u003e for full cluster networking builds, or browse individual subcategories to find the specific components you need.\u003c\/p\u003e","products":[],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/0525\/9582\/collections\/networking.png?v=1782104114","url":"https:\/\/dvun.com\/collections\/networking.oembed","provider":"DVUN","version":"1.0","type":"link"}