Overview
The NVIDIA Spectrum SN5400 is a 25.6T high-performance 2U Ethernet SN5000 series switch designed for smart-leaf, spine, and super-spine roles in next-generation data centers. Featuring 64 QSFP56-DD 400GbE ports along with 2 additional SFP28 (1/10/25GbE) ports, it delivers a massive switching capacity of 25.6 Tbps and an impressive 33.3 billion packets per second forwarding rate. Built to support versatile connectivity speeds ranging from 1GbE up to 400GbE, the SN5400 provides robust scalability and flexibility for demanding 400G fabric architectures. This switch supports leading network operating systems like Cumulus Linux and SONiC, ensuring seamless integration into modern, large-scale virtualized environments.
Use Cases
- Smart-leaf, spine, and super-spine switch in advanced CLOS topologies
- High-throughput 400GbE fabrics for hyperscale and cloud data centers
- Supports multi-speed Ethernet from 1GbE to 400GbE for flexible deployment
- Cumulus Linux, SONiC, and open NOS-based networks
Ports & Optics
- 64 × 400GbE QSFP56-DD ports
- 2 × SFP28 ports (1/10/25GbE)
- Supports breakout configurations up to 256 × 100GbE, 256 × 50GbE, 256+2 × 25GbE, and 256+2 × 10GbE
- QSFP-DD optics with DAC support up to 3m
- Management ports: 1 × RJ45 100/1000Mb, 1 × RJ45 serial console, 1 × USB 3.0 Type-A
Platform Features
- ONIE preloaded with SONiC NOS ready
- Pre-loaded with Cumulus Linux and ONIE bootloader
- Advanced Layer 2–7 networking including VXLAN, segment routing, and RoCE support
- Extensive telemetry with NVIDIA What Just Happened® (WJH) and streaming telemetry
- Programmable packet processing and deep packet inspection for enhanced network visibility
- 512,000 forwarding entries flexibly allocated across ACLs, routes, MAC, ECMP, and tunnels
Switch Hardware
- Switching capacity: 25.6 Tbps
- Wire-speed forwarding: 33.3 billion packets per second (Bpps)
- Latency: 620 ns (cut-through mode)
- CPU: Hexa-core x86 processor
- System memory: 32 GB DDR RAM
- SSD storage: 160 GB SATA-3
- Packet buffer: 160 MB
Cooling & Power
- 2U rackmount chassis
- 2 hot-swappable redundant power supplies (1+1)
- 4 hot-swappable fans with N+1 redundancy
- C2P (connector-to-power) airflow on this part number
- AC input: rated 220–240 Vac (operating range 200–264 Vac), 50/60 Hz
Environmental
- Operating temperature: 0°C to 40°C
- Humidity: 10% to 85% non-condensing
- Dimensions (H×W×D): 3.46" × 17.2" × 28.3" (88 mm × 438 mm × 720 mm); depth with fan levers 29.3" (745 mm)
- Weight: 23.5 kg (51.8 lb)
Ordering Information
- 920-9N42C-00RB-7C0: MSN5400, 2U, 64×400GbE + 2×25GbE, Cumulus Linux, C2P airflow, tool-less rail kit