{"id":101,"date":"2026-06-14T16:55:59","date_gmt":"2026-06-14T16:55:59","guid":{"rendered":"https:\/\/rdp.in\/gpu-mart\/product\/rdp-infiniband-fabric-bundle-lite\/"},"modified":"2026-07-05T09:21:53","modified_gmt":"2026-07-05T09:21:53","slug":"quasar-16-node-infiniband-ndr-fabric","status":"publish","type":"product","link":"https:\/\/rdp.in\/gpu-mart\/product\/quasar-16-node-infiniband-ndr-fabric\/","title":{"rendered":"QUASAR 16-Node InfiniBand NDR Fabric"},"content":{"rendered":"<p>The QUASAR 16-Node InfiniBand NDR Fabric is a turnkey InfiniBand fabric that wires a GPU cluster end-to-end \u2014 switches, the subnet manager and the topology, providing 16 nodes \u00b7 64\u00d7 400G at 25.6 Tb\/s aggregate over InfiniBand NDR (Quantum-2), with Sub-600 ns. It is the interconnect that turns a set of GPU servers into a cluster, carrying the collective (all-reduce) traffic that dominates multi-node AI training \u2014 on-premises, in INR, on a GST invoice.<\/p>\n<p>Engineered as the fabric layer of an RDP AI cluster, it is delivered configured, cabled and validated alongside the compute and storage it connects.<\/p>\n<h3>Key highlights<\/h3>\n<ul>\n<li><strong>16 nodes \u00b7 64\u00d7 400G \u00b7 25.6 Tb\/s aggregate<\/strong> \u2014 a complete non-blocking fabric to wire a GPU cluster at full bandwidth.<\/li>\n<li><strong>InfiniBand NDR (Quantum-2)<\/strong> \u2014 RDMA, lossless, in-network compute (SHARP) for fast collectives.<\/li>\n<li><strong>Sub-600 ns<\/strong> \u2014 low latency so distributed training scales with near-linear efficiency.<\/li>\n<li><strong>400G per port<\/strong> \u2014 matched to your GPU NICs\/DPUs.<\/li>\n<li><strong>Turnkey, validated fabric<\/strong> \u2014 delivered cabled and tested as one system, not loose boxes.<\/li>\n<li><strong>Validated with RDP compute &amp; storage<\/strong> \u2014 part of a tested cluster.<\/li>\n<li><strong>On-prem sovereignty<\/strong> \u2014 your fabric, your data path; DPDP-friendly, air-gappable.<\/li>\n<li><strong>Make-in-India OEM<\/strong> \u2014 predictable INR pricing, GST tax invoice (HSN 8517), pan-India onsite support, GeM-procurable.<\/li>\n<\/ul>\n<h3>Where it fits<\/h3>\n<ul>\n<li><strong>GPU cluster fabric (primary):<\/strong> the interconnect that carries distributed-training collectives between GPU servers.<\/li>\n<li><strong>Storage fabric:<\/strong> high-bandwidth path between GPU nodes and the NVMe parallel-FS (GPUDirect).<\/li>\n<li><strong>Scale-out spine:<\/strong> a leaf\/spine building block for larger clusters.<\/li>\n<li><strong>HPC interconnect:<\/strong> tightly-coupled MPI and AI collectives.<\/li>\n<\/ul>\n<h3>How it works<\/h3>\n<p>The fabric forms a leaf\/spine topology with RDMA over InfiniBand; the subnet manager programs routes, in-network compute (SHARP) offloads reductions, and adaptive routing avoids hotspots \u2014 so all-reduce traffic, which dominates multi-node training, completes fast. RDP sizes the topology (oversubscription, spine count, DPU count) to your cluster. <em>Honest note: real scaling efficiency depends on topology, collective library and model \u2014 we validate it on your cluster, not just a peak number.<\/em><\/p>\n<h3>Industry use cases<\/h3>\n<ul>\n<li><strong>AI\/ML &amp; foundation-model teams<\/strong> \u2014 the fabric that lets training scale across nodes.<\/li>\n<li><strong>Government &amp; national labs<\/strong> \u2014 sovereign HPC\/AI interconnect.<\/li>\n<li><strong>Neocloud \/ AI providers<\/strong> \u2014 the fabric layer of a GPU cloud.<\/li>\n<li><strong>BFSI &amp; research<\/strong> \u2014 low-latency clusters for training and HPC.<\/li>\n<li><strong>Telecom<\/strong> \u2014 high-bandwidth AI fabric at core\/edge.<\/li>\n<li><strong>Manufacturing &amp; energy<\/strong> \u2014 HPC + AI cluster interconnect.<\/li>\n<\/ul>\n<h3>Performance \u2014 and how to be sure<\/h3>\n<p>We don&#8217;t publish inflated peak numbers. The honest picture: 25.6 Tb\/s aggregate at Sub-600 ns is sized to carry cluster collectives without becoming the bottleneck. <strong>Want certainty? Request a free scaling test of your training job across nodes on this fabric before you buy<\/strong>; we&#8217;ll send back real all-reduce bandwidth and scaling efficiency.<\/p>\n<h3>Series &amp; scale path<\/h3>\n<ul>\n<li><strong>QUASAR<\/strong> (performance fabric tier) \u2014 <em>this<\/em>.<\/li>\n<li><strong>Speed ladder:<\/strong> 200G Ethernet \u2192 400G NDR \u2192 800G XDR InfiniBand.<\/li>\n<li><strong>Scale:<\/strong> 16-node \u2192 32 \u2192 64 \u2192 128+ node fabrics for thousands of GPUs.<\/li>\n<\/ul>\n<h3>On-prem vs cloud \u2014 the TCO case<\/h3>\n<p>An owned fabric is a one-time asset that removes the per-node networking premium of cloud GPU clusters and keeps the data path in-house. RDP pricing is fixed in INR with a GST input-credit-eligible invoice \u2014 ask for a <strong>fabric design and TCO<\/strong> for your cluster.<\/p>\n<h3>Software &amp; integration<\/h3>\n<p>Integrates with the AI stack: the InfiniBand subnet manager, NCCL with SHARP and standard MPI, with fabric monitoring and telemetry. Validated with RDP GPU servers, rack-scale systems and storage.<\/p>\n<h3>Power, cooling &amp; rack integration<\/h3>\n<p>A Single-switch fabric (1U) with redundant PSUs and front-to-back airflow \u2014 specify rack power, cooling and cable plant (DAC\/AOC\/transceivers). <em>(Exact power draw, BTU and cabling confirmed on the build sheet.)<\/em> Full out-of-band management.<\/p>\n<h3>Deployment, warranty &amp; support<\/h3>\n<ul>\n<li><strong>Made to order<\/strong>, configured, cabled and validated in India as part of the cluster; lead time confirmed at quote.<\/li>\n<li><strong>In the box:<\/strong> switches, rails, cables and the configured fabric profile; transceivers\/cables scoped at quote.<\/li>\n<li><strong>Onsite warranty + AMC<\/strong> with pan-India coverage and an RMA\/escalation path <em>(exact terms confirmed at quote)<\/em>.<\/li>\n<\/ul>\n<h3>Why RDP<\/h3>\n<p>14 years of Make-in-India infrastructure and <strong>300,000+ devices shipped<\/strong>. Indian OEM, INR pricing, GST tax invoice, pan-India onsite engineers, GeM availability, and DPDP \/ sovereign-AI-ready deployment.<\/p>\n<h3>Buy with confidence<\/h3>\n<p>This is an AI cluster fabric, made to order \u2014 <strong>talk to an RDP solution architect<\/strong>, design the topology and oversubscription for your cluster, get a fabric TCO, and <strong>run a scaling test before you commit.<\/strong> Request a quote to begin.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>16 nodes \u00b7 64\u00d7 400G \u00b7 25.6 Tb\/s aggregate \u00b7 InfiniBand NDR (Quantum-2) \u00b7 Sub-600 ns \u00b7 Single-switch fabric (1U)<\/p>\n","protected":false},"featured_media":2107,"comment_status":"open","ping_status":"closed","template":"","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","rank_math_title":"QUASAR 16-Node InfiniBand NDR Fabric \u2014 25.6 Tb\/s aggregate, InfiniBand NDR (Quantum-2) | RDP GPU Mart","rank_math_description":"On-prem AI cluster fabric \u2014 16 nodes \u00b7 64\u00d7 400G, 25.6 Tb\/s aggregate, InfiniBand NDR (Quantum-2), Sub-600 ns. Wire your GPU cluster at full bandwidth. Make-in-India, GST invoice. 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