NVIDIA Spectrum SN1800
Brand: NVIDIA | Category: Network Switches
SKU: SN1800-4S | Part #: SN1800-4S | MPN: SN1800-4S
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About the NVIDIA Spectrum SN1800
Layer 2/Layer 3 switching with BGP, OSPF, VXLAN routing, and bridging capabilities — these define the NVIDIA Spectrum SN1800's role as a high-performance data centre fabric switch. The SN1800-4S combines 48 ports of 25GbE SFP28 connectivity with 8 ports of 100GbE QSFP28 uplink capacity, delivering a non-blocking switching architecture rated at 3.2 Tbps switching capacity and 2.38 Bpps forwarding rate. Built on the NVIDIA Spectrum-1 ASIC and housed in a compact 1U fixed configuration, this platform supports lossless Ethernet operation through RoCE, PFC, and ECN, making it suitable for demanding workloads that require deterministic performance. The switch runs NVIDIA Onyx or Cumulus Linux, offering operators flexible control and automation options for modern cloud and hyperscale environments.
Network engineers and infrastructure teams responsible for building resilient, high-speed data centre interconnects choose the SN1800 for its ability to aggregate significant bandwidth while maintaining layer 2 and layer 3 protocol flexibility. VXLAN bridging and routing, combined with support for LACP, MSTP, IPv4/IPv6, ECMP, and standard routing protocols, enable seamless multi-tenant and multi-tier fabric designs. The dual redundant hot-swappable power supplies and hot-swappable fan modules with flexible port-side exhaust or intake cooling ensure operational continuity, while the out-of-band 1GbE management interface, RS-232 console port, and USB connectivity provide straightforward deployment and diagnostics in production environments operating between 0°C and 45°C.
To integrate the NVIDIA Spectrum SN1800-4S into your infrastructure, or to discuss bulk licensing, system integration, and support options tailored to your deployment timeline and scale, contact Omnixon Global to submit a detailed RFQ.
Technical Specifications
| Brand | NVIDIA |
| Category | Network Switches |
| SKU | SN1800-4S |
| Part Number | SN1800-4S |
| Condition | New |
| Interface | 100GbE |
| Speed | 400GbE |
| Manufacturer Part Number | SN1800-4S |
| Switch ASIC | NVIDIA Spectrum-1 |
| Form Factor | 1U Fixed Configuration |
| Total Switch Ports | 56 |
| 25GbE Ports | 48 x 25GbE SFP28 |
| 100GbE Uplink Ports | 8 x 100GbE QSFP28 |
| Switching Capacity | 3.2 Tbps |
| Forwarding Rate | 2.38 Bpps |
| Architecture | Non-blocking |
| Layer 2 Features | VLAN, MSTP, LACP, VXLAN bridging |
| Layer 3 Features | IPv4/IPv6 routing, ECMP, BGP, OSPF, VXLAN routing |
| RoCE Support | Yes (lossless Ethernet with PFC and ECN) |
| Supported Operating Systems | NVIDIA Onyx, Cumulus Linux |
| Management Interfaces | Out-of-band 1GbE RJ45, RS-232 console port, USB |
| Power Supplies | Redundant hot-swappable PSUs |
| Cooling | Hot-swappable fan modules, port-side exhaust or intake options |
| Operating Temperature | 0°C to 45°C |
| Rack Units | 1U |
Frequently Asked Questions about NVIDIA Spectrum SN1800
What does the NVIDIA Spectrum SN1800 do?
The NVIDIA Spectrum SN1800 is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
What are the headline specs of the NVIDIA Spectrum SN1800?
Key specifications for the NVIDIA Spectrum SN1800: new condition; network type Ethernet Switch; network port config 16x 400GbE QSFP-DD; network speed 400GbE; network switching capacity 6.4 Tbps; network forwarding rate 4.76 Bpps; network power consumption 200W. Manufacturer part number SN1800-4S. For the full datasheet with electrical, environmental, and compliance details, contact our pre-sales engineering team.
Is the NVIDIA Spectrum SN1800 compatible with my infrastructure?
The NVIDIA Spectrum SN1800 interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.