Specifications
Ports
64× 800GbE OSFP + 1× SFP28
Switching Capacity
51.2 Tb/s
ASIC
NVIDIA Spectrum-4
Latency
Ultra-low cut-through
Forwarding Entries
512,000 (shared ACL/LPM/MAC/ECMP/tunnel)
Features
RoCEv2, VXLAN, MACsec/VXLANsec (up to 12.8Tb/s)
Form Factor
2U, dual PSU (AC), x86 CPU
OS Support
Cumulus Linux, SONiC, ONIE
Deployment
Spectrum-X leaf/spine, ToR, EoR
MPN
920-9N42F-00RI-7C0
Overview
The NVIDIA Spectrum-4 SN5600 is a 64-port 800GbE switch delivering 51.2 Tb/s aggregate bandwidth in a dense 2U form factor. It is the foundation of NVIDIA Spectrum-X AI Ethernet fabrics, supporting standard leaf/spine, top-of-rack (ToR), and end-of-row (EoR) topologies.
A fully shared packet buffer provides predictable throughput, while cut-through forwarding keeps latency consistently low. RoCEv2 with accelerated RDMA over Converged Ethernet, single-pass VXLAN routing, and up to 12.8 Tb/s MACsec/VXLANsec encryption make the SN5600 ideal for AI cloud networking and GPU cluster interconnect.
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