• Cisco N3K-C3432D-S-OE 32x 400GbE QSFP-DD switch, 1RU fixed
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Cisco

Cisco N3K-C3432D-S-OE | Nexus 3400 32-Port 400G QSFP-DD Switch, 25.6 Tbps, 1RU

N3K-C3432D-S-OE

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Description

The Cisco Nexus 3432D-S is a high-performance data center switch delivering 32 ports of 400 Gigabit Ethernet in a compact 1RU form factor. Powered by a 12.8 Tbps ASIC with 50 Gbps PAM4 SerDes technology, it offers industry-leading power efficiency and sub-microsecond latency ideal for cloud, high-performance computing, and massively scalable data center fabrics. The Open Environment variant provides deployment flexibility for diverse data center environments running Cisco NX-OS.

Features

Layer 2 and Layer 3 switching with routed ports, SVIs, and sub-interfaces
- Virtual Port Channel (vPC) technology for Layer 2 multipath and STP elimination
- 512-way Equal-Cost Multipath (ECMP) routing for Layer 3 fabric designs
- Comprehensive tunneling: VXLAN, VXLAN routing, MPLS, GPE, Geneve, NVGRE
- Programmable pipeline with flexible profiles (LPM-optimized or Layer 3 host-optimized)
- Deep network analytics: per-flow monitoring, queue forensics, drop-packet forensics
- Advanced QoS with multiple queuing mechanisms and traffic shaping
- Comprehensive security: ACLs, port security, control plane policing
- Power-On Auto Provisioning (POAP) for zero-touch deployment
- Hot-swappable components for non-disruptive maintenance
- Energy-efficient 50 Gbps PAM4 SerDes technology
- Support for Active Optical Cables and Direct Attach Cables (10G/25G/40G/50G/100G/400G)
- Modular NX-OS software architecture for high availability and serviceability
- Python scripting and automation support for programmability

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

32x 400 Gigabit Ethernet QSFP-DD ports
- Switching capacity: 25.6 Tbps (bidirectional)
- Forwarding rate: 12.8 Tbps per ASIC
- Latency: 370 nanoseconds at 400G
- 2x 100/1000 Mbps SFP management ports
- MAC address table: 120,000 entries
- Memory: 16 GB RAM
- Breakout support: up to 128x 100G or 168x 50G ports
- Power consumption: 1240W typical operational
- Dual redundant hot-swappable power supplies (1500W each)
- 6x hot-swappable fans (5+1 redundant)
- Form factor: 1RU fixed rack-mount
- Airflow options: port-side intake or port-side exhaust
- Operating system: Cisco NX-OS
- Management: CLI, XML interface, SNMP, POAP, Python scripting

FAQs

Q: What licensing is required for the N3K-C3432D-S-OE?
A: The switch requires a base software license for Layer 3 routing capabilities. The Essential license (N3K-ES-XF2) enables OSPF, BGP, VRFs, QoS, and other advanced features. The Open Environment (OE) variant provides flexibility for diverse deployment scenarios.

Q: What transceivers and cables are compatible with this switch?
A: The Nexus 3432D-S supports a full range of QSFP-DD optical transceivers, Active Optical Cables (AOC), and Direct Attach Cables (DAC). It offers backward compatibility with 100G, 50G, and 25G transceivers, and supports breakout configurations for flexible connectivity.

Q: What data center applications is this switch designed for?
A: This switch is engineered for high-performance computing, cloud computing, IP storage networks, massively scalable data center fabrics, and spine-leaf architectures. Its 400G ports and low latency make it ideal for demanding workloads requiring maximum throughput and minimal delay.

Q: Does this switch support redundancy and high availability features?
A: Yes, it includes Virtual Port Channel (vPC) for Layer 2 multipath, 512-way Equal-Cost Multipath (ECMP) routing for Layer 3 redundancy, redundant hot-swappable power supplies and fans, and comprehensive VXLAN, MPLS, and NVGRE encapsulation support.

Q: What is the difference between the standard and OE variants?
A: The Open Environment (OE) variant is designed for deployment in diverse or non-traditional data center environments, offering greater flexibility while maintaining the same core performance specifications and NX-OS feature set as the standard model.

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