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32 x 400G QSFP-DD Data Center Leaf/Spine Switch
12.8 Tbps
Switching Capacity
5600 Mpps
Forwarding Rate
288K
IPv4 Routes
The CX732Q-N-V2 is a 1RU 400G data center spine switch
that delivers 32× 400G QSFP-DD ports plus 2× 10G SFP+ for 12.8 Tbps of non-blocking, wire-speed Layer 2 and Layer 3 forwarding. Built on the flagship Marvell Prestera Falcon ASIC and running the open, SONiC-based AsterNOS, it is purpose-built as a high-capacity spine for large 100G/400G spine-leaf fabrics carrying dense east-west traffic across cloud, AI/ML and storage clusters. With 128K MAC entries, 288K IPv4 routes and 4096 VLANs, the CX732Q-N-V2 anchors fabrics that scale from a few racks to thousands of nodes. Each 400G port breaks out to 4×100G, and 100G connections break out further to 4×25G or 4×10G — so a single switch can fan out to large numbers of 100G/25G leaf nodes with flexible topology choices.
Open NOS, full L2/L3 and a consistent operating experience
The switch runs AsterNOS, Asterfusion's enterprise distribution of open-source SONiC, with a single software binary spanning the entire CX-N-V2 family — no per-feature license tiers, no vendor lock-in. On top of it sits a complete Layer 2/Layer 3 feature set: VXLAN, EVPN Type 1–5, distributed/anycast gateway, VRF and MC-LAG for multi-tenant overlays, plus full BGP, OSPF v2/v3, IS-IS, ECMP and policy-based routing for the underlay. Operators get a consistent management experience across every box — industry-standard CLI, REST API, NETCONF, Zero-Touch Provisioning and Syslog — so the same automation and tooling carry from one switch to the whole fabric.
High-precision time synchronization
Timing is a first-class capability on the CX732Q-N-V2. The switch provides IEEE 1588v2 PTP with Class C accuracy and supports the full range of industry timing profiles — G.8275.1, G.8275.2, SMPTE 2059-2 and AES67 — across flexible clock roles including GrandMaster (GM), Boundary Clock (BC) and Ordinary Clock (OC). Combined with SyncE for physical-layer frequency distribution, it delivers the deterministic, low-jitter timing that AVoIP, broadcast, financial and industrial time-sensitive networks depend on.
Comprehensive multicast and RoCEv2 transport
For one-to-many media and data distribution, the switch offers a complete multicast toolset — IGMP v1/v2/v3, IGMP Snooping, IGMP Querier, PIM-SM and multicast routing — to keep AVoIP and broadcast traffic efficient and loss-free across large fabrics. For storage and AI/ML workloads, it adds RoCEv2 with PFC, PFC Watchdog, ECN, DCBX, Fast CNP and one-step Easy RoCE configuration, so a lossless RDMA fabric can be brought up in a single command.
Built-in observability
The CX732Q-N-V2 is designed to be transparent in production. A native AsterNOS Prometheus exporter streams real-time switch metrics to your monitoring stack and renders them on ready-made Grafana dashboards, while sFlow, SPAN/ERSPAN and SNMP v1/v2/v3 provide flow sampling, traffic mirroring and standards-based management. Together they give operators per-port, real-time visibility for fast troubleshooting and capacity planning.
Carrier-grade reliability
Built for always-on data centers, the switch uses hot-swappable 1+1 redundant power supplies and 5+1 (N+1) redundant, hot-swappable fans to eliminate single points of failure. Flexible AC and HVDC input options and front-to-rear airflow suit hot/cold-aisle containment in high-density spine deployments — making the CX732Q-N-V2 a dependable open-networking foundation for AI/ML clusters, cloud data centers, HPC, and distributed storage.
AsterNOS – Enterprise SONiC, Optimized for Performance
AsterNOS is Asterfusion’s enhanced SONiC distribution, pre-installed on every CX Series switch. Built for modern data centers, it combines open-source flexibility with enterprise-grade reliability, usability, and speed. Battle-tested and production-ready, AsterNOS delivers the stability and performance you need — empowering your network to run smarter, faster, and stronger.
Layer 2 Features
Layer 3 Features
Virtualization Features
Mgmt & Monitoring
Quality of Service
Security Features
Marvell® Prestera® Falcon 2.0T–12.8T (Prestera 98CX85xx family)
The CX-N-V2 data center switch family is built on Marvell’s 9th-generation, 16nm Prestera Falcon packet processors, scaling from 2.0 Tbps leaf platforms through 3.2 Tbps spine/leaf designs to 12.8 Tbps high-radix spine switches within the same merchant-silicon architecture. Falcon pairs large shared L2/L3 forwarding and LPM tables with a globally shared, dynamic-threshold packet buffer for superior microburst absorption under heavy east-west load. Exposing the standard SAI and TAM APIs, it is what lets open SONiC-based AsterNOS run consistently across the entire CX-N-V2 line — with no proprietary forwarding stack and no feature licensing.
Architecture & performance
- 9th-generation, 16nm Marvell Prestera Falcon — 2.0 Tbps to 12.8 Tbps wire-speed switching across the 98CX85xx family
- Large shared tables: 128K MAC, 288K IPv4 / 144K IPv6 prefixes, high-scale multi-tenant L2/L3
- Globally shared packet buffer with dynamic thresholds for microburst (µBurst) absorption
- Cut-through switching and dynamic load balancing (DLB) across the fabric
Virtualization & overlays
- eBridge unified virtualization architecture with hardware-based interface/domain virtualization
- Programmable header editor: hardware-accelerated VXLAN, VXLAN-GPE, Geneve and NSH
- MPLS and IPv6 segment routing for flexible transport
RDMA, telemetry & openness
- RoCEv2-aware congestion management for lossless RDMA storage and AI/ML traffic
- In-band network telemetry built into the data path — sFlow, IPFIX, remote port analysis
- Open Switch Abstraction Interface (SAI) + Telemetry & Monitoring (TAM) APIs — merchant-silicon foundation for SONiC/AsterNOS
| Enterprise data center switch family datasheet | Enterprise Data Center Switches Datasheet (PDF) |
| Quick start guide for AsterNOS CLI | AsterNOS Documentation |
The dual 1+1 hot-swappable power supplies ensure continuous operation by allowing replacement without system shutdown.
Equipped with 5+1 hot-swappable fan modules, the system delivers reliable cooling performance, maintaining stability and efficiency under demanding workloads.
| CERTIFICATE |  ISO 9001 |  ISO 14001 |  ISO 45001 |  ISO 27001 |  FCC |  CE |
| SCOPE | Quality management system | Environmental management | Occupational health and safety | Information security management | US radio frequency compliance | EU health, safety and environmental compliance |