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NVIDIA Spectrum-4 SN5600

CurrentNetwork2U fixed switch
NVIDIA Spectrum-4 SN56002U fixed switch64 ports51.2 Tbps

The NVIDIA Spectrum-4 SN5600 is a 2U multi-terabit datacenter spine switch delivering up to 51.2 Tbps of switching throughput. Housing 64 ports of 800GbE OSFP (or 64 ports of 400GbE QSFP-DD), the SN5600 is powered by the custom 4nm Spectrum-4 ASIC with adaptive routing, advanced telemetry, and ultra-high-density RoCE optimization. Built to power generative AI supercomputing clusters and hyperscale cloud backbones, the SN5600 commands premier enterprise valuation.

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Specifications

BrandNVIDIA
FamilySpectrum
Form factor2U fixed switch
ReleasedMar 2022
Ports64x 800GbE OSFP ports (or 64x 400GbE QSFP-DD ports)
Switching capacity51.2 Tbps / 33.6 Bpps forwarding capacity
SiliconNVIDIA Spectrum-4 4nm network processing ASIC with adaptive routing
BufferUltra-large dynamic shared packet buffer preventing RoCE packet drops
Power and coolingQuad redundant hot-swappable power supplies and high-volume fan trays

Generations

Compatible parts

Cables

Transceivers

Works together

How the NVIDIA Spectrum-4 SN5600 connects to servers, storage and the network: 4 ways, with the parts and products on each path.

iSCSI and NVMe/TCP over EthernetFile storage (NFS and SMB)Hyperconverged clusterGPU cluster fabric

iSCSI and NVMe/TCP over Ethernet

Keep the speed the same at all three points: a 25GbE server, a 25GbE switch port and a 25GbE array port. Mixed speeds work but the slowest link sets the pace.

Servers

Adapters for the server

Storage

Optics

iSCSI and NVMe/TCP over Ethernet: how it fits together

File storage (NFS and SMB)

Front-end ports face the clients; back-end ports (on scale-out systems) connect the nodes to each other and need their own switch pair.

Servers

Adapters for the server

Storage

Optics

File storage (NFS and SMB): how it fits together

Hyperconverged cluster

Plan at least two 25GbE ports per node to two switches; all-NVMe clusters often move to 100GbE.

HCI nodes

Adapters for the server

Optics

Hyperconverged cluster: how it fits together

GPU cluster fabric

InfiniBand adapters and switches must match the generation: HDR is 200Gb, NDR is 400Gb. VPI adapters such as ConnectX-6 and ConnectX-7 can run either InfiniBand or Ethernet.

Servers

GPUs

Adapters for the server

GPU cluster fabric: how it fits together

Plan and size it

Check compatibility with NVIDIA

Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that NVIDIA has tested with the NVIDIA Spectrum-4 SN5600.

Equivalent models from other brands

FAQ

What optical transceiver form factors are supported on the SN5600?

Variants support 64x 800GbE OSFP ports or 64x 400GbE QSFP-DD interfaces.

Does the Spectrum-4 ASIC support adaptive routing?

Yes, adaptive routing dynamically redirects packets around congested links to maximize AI cluster performance.

Buying or selling Spectrum-4 SN5600?

New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.

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Sources