Cisco Nexus 400G-The Next Frontier for Cloud Networking

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Cisco Nexus High-Capacity 400G Data Center Networking:

Built for the most demanding environments
Built for customer choice and flexibility
Built to last, for maximum investment protection

The New Cisco Nexus 400G family includes four models:

Cisco Nexus 9316D-GX

1RU, 16p 400G QSFP-DD
6.4 Tbps bandwidth
Up to 64p 100G in a compact 1RU form factor

Cisco Nexus 93600CD-GX

1RU 28p 100G QSFP-28 with 8p 400G QSFP-DD
6.0 Tbps bandwidth
High performance for AI/ML workloads

Key differentiators:

Industry-leader in route scale
Full data and system telemetry capabilities
Only 400G silicon with SRv6 forwarding at line rate

ACI leaf and spine capability in same switch

Cisco Nexus 3432D-S

1RU, 32p 400G with QSFP-DD
12.8 Tbps bandwidth
High-density spine

Cisco Nexus 3408-S

4RU semimodular switch
12.8Tbps bandwidth
Expansion modules of 8-slots for 100G or 400G LEMs
8 slots for different up- and down-link configurations
400G QSFP-DD
100G QSFP-28

Key differentiators:

Industry’s lowest latency 450ns at 400G
Lowest power at high switch radix
Optimized for Leaf and Spine architectures

Backward compatible with 100GE QSFP-28 and 40GE QSFP+1x 400 GbE/100 GbE/40 GbE Breakout 4x 100 GbE/25 GbE/10 GbE or 8x 50GbE;2x 200 GbE or 4x 50GbE

Cisco Nexus 400G use cases 400G: Terabit-scale Switching

Bandwidth continues to explode. Cisco Visual Networking Index (VNI) research data indicates the dawning of a 400G era for mass-scale networking in service providers and data centers.

Webscale customer use case

Enable transition from 50G to 100G servers with proportionally scaled-out fabrics
Higher radix switches for optimized power consumption

Cisco ACI™ enterprise deployments

High-performance I/O and 400G fabric for AI/ML compute clusters
Sophisticated dynamic fabric load-balancing, smart buffers, and flow-level visibility
400G in different fabric tiers

Service provider deployments

100G/400G fabrics for spaceconstrained environments in service-provider edge locations
Ready for NFV/5G adoption cycle

400G optics: QSFP-DD
PID	Distance, media (connector)
QDD-400-CUxM*	3m passive copper cable*
QDD-400G-AOCxxM*	30m active optical cable*
QDD-400G-SR4-BD	100m MMF ribbon (MPO-12)
QDD-400G-DR4-S*	500m SMF ribbon (MPO-12)*
QDD-400G-FR4-S*	2km duplex SMF (LC)*
QDD-400G-LR8-S	10km duplex SMF (LC)
QDD-400G-ZR-S	120km duplex SMF (LC)
QDD-2X100-SR4-S	100m MMF ribbon (MPO-24)
QDD-2X100-PSM4-S	500m SMF ribbon (MPO-24)
QDD-2X100-CWDM4-S	2km dual duplex SMF (CS)
QDD-2X100-LR4-S	10km dual duplex SMF (CS)