32 x 400Gb QSFP-DD Data Center Switch, 12.8Tbps, Sub-500ns Latency

SKU: CX732Q-N

In stock

$12,559.00

  • 12.8 Tbps in 1U: 32×400G QSFP-DD ports for super-spine and spine layers.
  • Ultra-low latency: Sub-500 ns port-to-port.
  • Advanced telemetry: INT for real-time packet visibility and congestion control.
  • High availability: Hot-swappable redundant power and fan modules.
  • Open AsterNOS: Enterprise SONiC pre-installed with top-tier SAI support.
  • RoCE & AI fabrics: RoCEv2, BGP-EVPN, VXLAN, MLAG, PFC, ECN, DCBX, and multicast collectives.
  • Fully compatible: Works with all major GPUs and SmartNICs.
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500 ns

End to End Latency

12.8 Tbps

Switching Capacity

70 MB

Packet Buffer

7600 Mpps

Packet Forwarding Rate

Designed for AI inference and training, high-performance computing (HPC), and cloud-scale storage, the Asteraix CX732Q-N delivers 12.8 Tbps switching capacity in a compact 1U form factor with 32×400G QSFP-DD. Built on Marvell Teralynx 7, this switch supports ultra-low latency (Sub-500 ns) and line-rate L2/L3 forwarding. Enterprise SONiC (AsterNOS) is pre-installed for RoCEv2, EVPN multi-homing, and cloud-native operation. Networking- Support for all leading collective communication libraries, including NCCL, RCCL, oneCCL, BCL, MPI, and Gloo

  • Optimize collective operations (Allreduce, Allgather, All-to-all, Broadcast) with built-in multicast
  • Support various network topologies, including spine-leaf, fat-tree, dragonfly, butterfly, 3D mesh/torus, hyper-x, and hypercube
  • Full RoCEv2 data path with PFC, ECN, DCBX, and INT for lossless AI fabrics
  • BGP-EVPN, VXLAN, and MLAG for scalable leaf-spine and multi-tenant deployments

Use case scenarios

  • AI / ML training and inference clusters
  • High-performance computing (HPC) fabrics
  • Cloud and colocation spine-leaf networks
  • High-density data center top-of-rack (ToR)
  • Storage networks with RoCEv2 optimization
Data Plane Ports (400G)32x400GbE QSFP-DD
Data Plane Ports (10G)2x10GbE SFP+
Switch ASICMarvell Teralynx
Switching Capacity12.8Tbps
Forwarding Rate7600Mpps
Packet Buffer70MB
Control CPUBroadwell DE D-1508
Control Plane Memory16GB DDR4, extensible to 96GB
ARP Entries36K
Mac Addr. Entries44K
IPv4 Prefix Routes72K
IPv6 Prefix Routes36K
Power Module1+1 Hot-swappable
FAN Modules5+1 Hot-swappable
Input Range200- 240V AC / 200-320V DC
Max Power Consumption970Watt
Rack Space1U
Management Ports1xUSB2.0, 1xConsole RJ45, 1xMGMT RJ45
AirflowFront to Rear
Dimension (HxWxD)44x440x515mm
Op.Temperature0 - 40℃
Op. Humidity5% - 90% (non-condensing)

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
4096 VLANs
Multiple Spanning Tree Protocol (MSTP)
Link Aggregation Control Protocol (LACP)
128 LAG groups / 64 LAG members
Multi-Chassis Link Aggregation (MC-LAG)
Link Layer Discovery Protocol (LLDP)
Jumbo Frames (9K Bytes)
Storm Suppression
Port Isolation
Monitoring Link
Layer 3 Features
Routing Protocols: OSPF, OSPFv3, BGP, MP-BGP,IS-IS
Equal Cost Multipath Routing (ECMP)
VRF
Bi-Directional Forwarding Detection (BFD)
Route Maps
VRRP
Policy-Based Routing (PBR)
AIDC Intelligent Routing
Virtualization Features
VXLAN Routing and Bridging
Anycast Gateway
Distributed/Centralized Gateway
Ethernet Auto Discovery
Symmetry IRB
EVPN Multi-homing
Mgmt & Monitoring
Console, SSH, Telnet, REST API, NETCONF
Management over IPv6
Industry Standard CLI
Syslog
Zero Touch Provisioning (ZTP)
Containerized Custom Tools
SNMPv2, SNMPv3, SNMP Trap
SPAN, ERSPAN
sFlow
In-band Network Telemetry (INT)
Buffer Drop Capture
High Delay Capture
AsterNOS Exporter (Prometheus)
Grafana Dashboard
RoCE Status
Prometheus Alarm & Alert
Quality of Service
802.1p-based classification
DSCP-based classification and Remarking
Strict priority queueing
DWRR Scheduling
Port/Queue-Based Traffic Shaping
Rate limiting
Explicit Congestion Notification (ECN)
Per-Priority Flow Control (PFC)
PFC Watchdog
Data Center Bridging Extensions (DCBX)
RoCEv2
One-step RoCE Configuration
Security Features
IPv4/IPv6 Ingress ACLs
IPv4/IPv6 Egress ACLs
User-defined Field (UDF) Matching
Control Plane Policing (CoPP)
Service ACLs
TACACS+
RADIUS

Marvell® Teralynx® 7

(IVM777xx / IVM775xx / IVM773xx)

The Teralynx 7 family is Marvell’s programmable Ethernet switch silicon scaling from 3.2 Tbps to 12.8 Tbps, covering ToR, leaf, and high-radix spine deployments. Built for cloud, enterprise, HPC, and service provider data centers, it combines large buffers, ultra-low latency, and line-rate programmability with industry-leading power efficiency — 2× performance-per-watt over alternatives. Open SDK and SAI APIs enable native SONiC support with a common software stack shared across the entire Teralynx product line.

Architecture & performance

  • TeraSCALE™ switch and buffer fabric — scalable from 3.2 Tbps to 12.8 Tbps within a unified architecture, enabling ToR, leaf, and spine in a single silicon family
  • Large shared packet buffer with dynamic thresholds for superior microburst (µBurst) absorption under heavy east-west load Cut-through latency of ~500 ns; industry-leading 2× performance-per-watt advantage over alternatives Up to 128 × 100G, 64 × 200G, or 32 × 400G single-chip configurations; multi-chip chassis scales to 256 × 400G (1024 × 100G)

SerDes & port flexibility

  • IVM77700 / IVM77610: 50G PAM4 SerDes — industry’s first high-port-count 200G and 400G connectivity; supports 10/25/40/50/100/200/400 GbE
  • IVM77500 / IVM77310: 25G NRZ SerDes — supports 10/25/40/50/100 GbE with full backward compatibility
  • Up to 256 SerDes (IVM77700/IVM77500); proven robust interoperability across all speed grades

Programmable forwarding

  • InnoFlex™ line-rate programmable forwarding pipeline — extend new protocols via software upgrade, no ASIC respin required
  • Comprehensive tunneling: IP-in-IP, GRE, MPLS, VXLAN, and Geneve; highly scalable IPv4/IPv6 L2/L3 forwarding tables
  • Advanced QoS and traffic management: DCB, RoCEv2, and QCN for lossless RDMA, storage, and AI/ML traffic

Telemetry & openness

  • FLASHLIGHT™ visibility and analytics engine with P4 in-band network telemetry (INT) and critical extensions
  • Predictive analytics and automated remediation for self-healing networks, reduced OPEX, and improved uptime
  • Open SDK + OCP SAI APIs with native SONiC support; common software stack shared with Teralynx 10 for seamless migration
Low-latency AI RoCE Switch family datasheet Low-latency AI RoCE 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.

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