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NVIDIA Spectrum SN4000 Open Ethernet Switches

Cloud, storage, and AI interconnects with visibility at scale.

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Optimize Utilization and Efficiency with Cost-Effective Open Ethernet

NVIDIA^® Spectrum^®-3 based SN4000 is an open ethernet switch that combines industry-leading cloud features with groundbreaking performance to support modern scale-out distributed data center applications. With support for all speeds 1GbE through 400GbE, SN4000 is ideal for building large layer-2, layer-3, and virtualized network fabrics for both green field and brown field environments.

Highlights

Max Port Speed

400Gb/s

Max Flow Counters

512K entries

Max Access-Control Lists (ACLs)

512K entries

Network Address Translation (NAT)

100K+ entries

Max IPV4 Routes

1M entries

Spectrum Networking Advantages

NVIDIA Mellanox What Just Happened (WJH)

Visibility

NVIDIA Spectrum SN4000 switches support detailed and contextual telemetry with NVIDIA What Just Happened^® (WJH). WJH dramatically reduces mean time to issue resolution by providing instant answers to when, what, who, where and why questions as soon as an issue occurs. Spectrum switches implement hardware- accelerated histograms track and summarize queue depths at a sub-microsecond granularity. Hardware-accelerated histograms avoid false-alerts common to simple watermarks and threshold based methods.

Spectrum switches deliver a robust high bandwidth

Performance

NVIDIA Spectrum SN4000 switches feature a fully shared packet and monolithic buffer architecture. This superior buffer architecture provides a fair, predictable and high-performance data path that is essential for scale out software defined storage and modern multi-tenant cloud deployments. Spectrum switches deliver a robust high bandwidth and low latency data path for remote direct-memory access over converged Ethernet (RoCE) and machine learning applications that leverage GPUDdirect^®.

Scale

NVIDIA Spectrum SN4000 switches support best-in-class Virtual Extensible LAN (VXLAN) with support for 10X more tunnels and tunnel end points. Its 512K shared forwarding entries can be flexibly used across access-control lists (ACL), longest prefix match (LPM) routes, host routes, MAC tables, and equal-cost multi-path (ECMP) and tunnel applications.

Benefits

Advanced network virtualization with support for high-performance, single-pass VXLAN routing and IPv6/multi-protocol label switching (MPLS) segment routing
Programmable pipeline with the ability to programmatically parse, process, and edit packets
Robust high-bandwidth data path for RoCE-based and GPUDirect-based applications
In-band network telemetry (INT)-ready hardware
Rich data center features at unprecedented scale with NVIDIA FlexFlow™ packet processing
Consistent performance and ultra-low latency
Fair bandwidth sharing with fully shared packet buffer

Supported Operating Systems

Key Features

Up to 12.8Tbps switching capacity
Up to 8.4Bpps packet processing rate
Support for 1/10/25/40/50/100/200/400GbE speeds
Advanced Explicit Congestion Notification (ECN)
Deep packet inspection at 512B deep
Single pass VXLAN bridging and routing
512K forwarding entries that can be flexibly used across layer-2, layer-3, tunnelling and other protocols
Precision Timing Protocol (PTP), Network Timing Protocol (NTP)
100K+ hardware based NAT sessions
Advanced telemetry with What Just Happened (WJH)

SN4000 Comparison Table

	Connectors	400GbE Ports	200GbE Ports	100GbE Ports	50GbE Ports	40GbE Ports	25/10/1GbE Ports	Height	Max Throughput	Total Packets per Second
SN4600C	64x QSFP28 100GbE			64	128**	64	128**	2U	12.8Tb/s	8.4Bpps
SN4700	32x QSFPDD 400GbE	32	64**	128**	128**	64**	128**	1U	25.6Tb/s	8.4Bpps
SN4410*	32x QSFPDD 400GbE	8	16**	24/48**	128**	64**	128**	1U	8Tb/s	8.4Bpps
SN4600*	64x QSFP56 200GbE		64	128**	128**	64	128**	2U	25.6Tb/s	8.4Bpps
SN4800*	128x QSFP28 100GbE 32x QSFPDD 400GbE 64x QSFP56 200GbE	32	64	128	128**	64	128	4U	25.6Tb/s	8.4Bpps