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NVIDIA Spectrum-2 SN3700C

CurrentNetwork1U fixed switch
NVIDIA Spectrum-2 SN3700C1U fixed switch32 ports6.4 Tbps

The NVIDIA Spectrum-2 SN3700C is a 1U cost-optimized 100GbE datacenter spine and leaf switch delivering 32 ports of 40G/100G QSFP28. Built on the Spectrum-2 ASIC delivering 6.4 Tbps of line-rate throughput with a 42 MB shared packet buffer, the SN3700C brings the modern telemetry, enhanced table scale, and low latency of Spectrum-2 to standard 100G networks. It is a high-volume trading asset on secondary markets for cloud leaf-spine infrastructure.

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Specifications

BrandNVIDIA
FamilySpectrum
Form factor1U fixed switch
ReleasedSep 2018
Ports32x 40G/100G QSFP28 ports
Switching capacity6.4 Tbps / 4.76 Bpps forwarding capacity
Packet buffer42 MB fully shared dynamic packet buffer
FeaturesWJH telemetry, line-rate EVPN-VXLAN, and RoCE v2 hardware acceleration
Power suppliesDual redundant hot-swappable AC or DC power supplies

Generations

Compatible parts

Cables

Works together

How the NVIDIA Spectrum-2 SN3700C connects to servers, storage and the network: 3 ways, with the parts and products on each path.

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

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

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-2 SN3700C.

Equivalent models from other brands

FAQ

How does the SN3700C differ from the SN3700?

The SN3700C is capped at 100GbE port speeds for cost optimization, while the SN3700 supports up to 200GbE QSFP56.

Can the QSFP28 ports break out to 4x 25GbE?

Yes, breakout cables yield up to 128 wire-speed 25GbE interfaces across the chassis.

Buying or selling Spectrum-2 SN3700C?

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