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Cisco N9K-C9232E-B1 | Nexus 9000 32-Port 800G Switch, 25.6Tbps, QSFP-DD, Layer 3

N9K-C9232E-B1

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Description

The Cisco Nexus 9232E-B1 is a high-density 800G data center switch delivering 32 QSFP-DD800 ports in a compact 1RU form factor with 25.6 Tbps switching capacity. Engineered for AI/ML workloads and next-generation data center spine deployments, it supports flexible breakout configurations to 400G, 200G, 100G, and lower speeds. Running NX-OS or ACI mode, the switch provides comprehensive Layer 2/3 features, VXLAN BGP EVPN support, and backward compatibility with existing 400G and 100G fabrics.

Features

32x 800 Gigabit Ethernet QSFP-DD ports with flexible breakout
- 25.6 Tbps non-blocking switching fabric with 12.8 Bpps forwarding
- High-performance 7nm ASIC optimized for ultra-low latency
- 108MB fully shared packet buffer minimizes congestion loss
- VXLAN overlay networking with BGP EVPN control plane
- Layer 2 features: VLANs, STP, VPC, LACP, LLDP
- Layer 3 routing: IPv4/IPv6, OSPF, BGP, EIGRP, IS-IS, RIPv2, PIM-SM, SSM, MSDP
- Advanced security: ACLs, MACsec, 802.1X, RBAC, AAA
- VXLAN EVPN Multi-Site support for geographically distributed fabrics
- Segment Routing for MPLS traffic engineering
- IEEE 1588 PTP boundary clock and SyncE for precision timing
- Telemetry streaming for real-time network analytics
- Hot-swappable redundant power supplies and fan modules
- Dual operating modes: NX-OS standalone or Cisco ACI fabric
- Cisco Nexus Dashboard integration for centralized visibility and automation
- Standards-compliant IPv6 transition mechanisms
- Comprehensive QoS and traffic management capabilities
- In-Service Software Upgrade (ISSU) support for zero-downtime maintenance

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 QSFP-DD800 800G ports
- Switching capacity: 25.6 Tbps
- Forwarding rate: 12.8 Bpps
- Breakout support: 2x 400G, 4x 200G, 8x 100G, 4x 25G, 4x 10G per port
- Supports up to 64 line-rate 400G ports in breakout mode
- Backward compatible with QSFP-DD, QSFP28, QSFP+ transceivers
- Form factor: 1RU fixed configuration
- ASIC: High-performance 7nm G100 ASIC with 112G SERDES
- Memory: 32GB RAM, 128GB SSD storage
- Processor: Quad-core x86 CPU
- Packet buffer: 108MB fully shared buffer memory
- Latency: Sub-microsecond latency
- Power supplies: Dual 2000W AC hot-swappable (1+1 redundancy)
- Cooling: 6 hot-swappable fan modules with port-side exhaust airflow
- Management: Console, SSH, HTTPS, SNMP, Cisco Nexus Dashboard
- Operating modes: NX-OS standalone or ACI fabric mode
- Timing support: IEEE 1588 PTP, SyncE for precision timing
- Typical power consumption varies with configuration and load
- Altitude rating: 10,000 ft (3,048 m)
- Rack mount kit: NXK-ACC-KIT-1RU (sold separately)

FAQs

Q: What breakout configurations does the N9K-C9232E-B1 support?
A: Each 800G QSFP-DD port can break out to 2x 400G, 4x 200G, 8x 100G, 4x 25G, or 4x 10G interfaces, providing exceptional deployment flexibility for spine or high-density leaf scenarios. The switch can support up to 64 line-rate 400G ports in 2x 400G breakout mode.

Q: Is the Nexus 9232E compatible with existing 400G or 100G infrastructure?
A: Yes, the switch is fully backward compatible with QSFP-DD, QSFP28, and QSFP+ optics, allowing seamless integration into existing 400G, 100G, 50G, 40G, 25G, and 10G network fabrics without forklift upgrades.

Q: What software features are supported on the N9K-C9232E-B1?
A: The switch runs Cisco NX-OS and supports comprehensive Layer 2/3 protocols including VXLAN BGP EVPN, OSPF, BGP, EIGRP, VPC, multicast routing, segment routing, and QoS. It can also operate in ACI fabric mode for policy-driven automation and supports VXLAN EVPN Multi-Site architectures.

Q: What are typical deployment scenarios for this switch?
A: Ideal for high-performance data center spine layers supporting AI/ML workloads, cloud-scale fabrics, HPC environments, and service provider networks. The high port density and breakout flexibility also make it suitable for aggregation or high-density leaf deployments requiring massive bandwidth.

Q: Does the switch require special licensing?
A: The Nexus 9232E uses Cisco DCN Premier licenses for advanced features. Specific licensing requirements depend on the desired feature set and deployment mode (NX-OS standalone vs. ACI). Contact your Cisco partner for detailed licensing guidance.

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