NVIDIA Spectrum-2 SN3420 - Switch - 48 x 25 GbE + 12 x 100 GbE

SN3420 Series Switches

As data-center switching architectures increasingly adopt 100GbE, the SN3420 offers a high-performance, cost-effective way to evolve host connectivity from 10G to 25G. Equipped with 48 ports of 10/25GbE and 12 ports of up to 100GbE in a compact 1U form factor. The SN3420 is an ideal Top-of-Rack (ToR) network switch, delivering a total throughput of up to 4.8Tb/s with a processing capacity of 3.58Bpps. The SN3420 enables the seamless use of QSFP28 connections for leaf-spine topology and future-proofing the data center.

Visibility

• NVIDIA What Just Happened (WJH) telemetry dramatically reduces mean time to issue resolution by providing answers to: When, What, Who, Where and Why
• Hardware-accelerated histograms track and summarize queue depths at submicrosecond granularity
• Inband Network Telemetry (INT)-ready hardware
• Streaming Telemetry
• 512K on-chip flow counters

Performance

• Fully shared packet buffer provides a fair, predictable and high bandwidth data path
• Consistent and low cut-through latency
• Robust RoCE transport to power NVMe over fabric and Machine Learning applications that leverage NVIDIA GPUDirect
• Best-in-class VXLAN scale 10X more tunnels and tunnel endpoints than others
• 512K shared forwarding entries flexibly shared across ACL, LPM routes, host routes, MAC, ECMP and tunnel applications

Agility

• Comprehensive Layer-2, Layer-3 and RoCE
• Advanced network virtualization with high performance single pass VXLAN routing and IPv6 segment routing
• Cloud Scale NAT 100K+ sessions
• Programmable pipeline that can programmatically parse, process and edit packets
• Deep Packet Inspection 512B deep