12.8T Low Latency Data Center Switch

DCS-O3202KE

32x400G and 2x10G ultra-low latency cloud switch with hot-swappable PSU and fans, front-to-rear airflow. Designed for leaf/spine deployments with Enterprise SONiC pre-installed for open, high-throughput automation.

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32×400Gb QSFP-DD
Multi-Tenant Isolation
Low Latency
Supports RoCEv2, ECN, PFC, INT
SeraNOS Enterprise OS

Overview

DCS-O3202KE is a compact 1RU ultra-low latency cloud switch equipped with 32 x 400G QSFP-DD and 2 x 10G SFP+ uplinks, delivering up to 12.8 Tbps of full wire-speed L2/L3 switching. Powered by Marvell Teralynx ASIC, the platform is optimized for high-performance spine/leaf deployments in AI/ML clusters, distributed storage, and cloud-scale networks.

With support for RoCEv2, QCN, DCQCN, and in-band telemetry (INT), it delivers true lossless Ethernet and real-time visibility. Running SeraNOS, a SONiC-based containerized OS, it enables full-stack automation via REST API, Ansible, Python, and integrates with the Sera Fabric Controller (SFC) for SDN-driven operations.

Features

  • 32 x 400G QSFP-DD ports, 2 x 10G SFP+ uplinks
  • 12.8 Tbps full wire-speed L2/L3 switching capacity
  • Marvell ultra-low latency ASIC
  • Supports breakout to 2x 200G, 4x 100G, or 8x 50G
  • 5+1 hot-swappable redundant fans
  • 1+1 hot-swappable AC/DC power modules (1000W Slim)
  • Front-to-back airflow, 1RU compact design
  • Preloaded with containerized SeraNOS OS based on SONiC
  • VXLAN L2/L3, EVPN Type 2/5, Distributed Gateway
  • RoCEv2, ECN, PFC, QCN, DCQCN, DCTCP lossless fabric features
  • In-band Network Telemetry (INT) with timestamp/latency insight
  • Integrated DevOps tools: Python, Ansible, gRPC, REST API
  • ONIE, ZTP, Warm/Fast Reboot, SNMP, Syslog, WebUI/CLI
  • Ideal for HPC, AI/ML spine-leaf fabric and private/public cloud deployments

Software

Ultra-Low Latency Network
  • World’s Fastest Switch Silicon: Powered by Marvell Teralynx 7, delivering sub-560ns port-to-port latency for 400G. Ideal for AI/ML, HPC, and NVMe workloads.
  • Enhanced RDMA Performance: Enables ultra-low latency memory access with optimized microsecond-level performance
Lossless Network
  • Zero Packet Loss: Built-in RoCEv2 with deep QoS support (ECN, PFC, QCN, DCQCN, DCTCP) ensures lossless Ethernet for high-throughput RDMA.
  • INT-Based Congestion Visibility: In-band network telemetry monitors latency, drops, and path behavior to support AI-optimized congestion control.
High-Reliability Network
  • Massive ECMP Support: Up to 8192-way equal-cost multi-path routing for hyperscale resiliency.
  • MC-LAG with Active Multipathing: Provides multi-chassis redundancy and enhanced bandwidth utilization.
  • Rapid Failover: Fast link detection with BFD for BGP and OSPF within 50ms.
Time-Sensitive Network
  • 10ns Precision Timing: Supports high-accuracy PTP and SyncE for synchronized AI compute clusters and time-critical workloads.
Open Network
  • Enterprise SONiC Ready: Integrated with SeraNOS for modular, reliable SAI-based operation.
  • Future-Proof Programmability: Line-rate programmable to support UEC (Ultra Ethernet Consortium) standards and beyond.
Automated O&M Network
  • Effortless Operations: Full automation via Python/Ansible for deployment and maintenance.
  • Zero-Touch Provisioning (ZTP): Auto-fetch and install software/images for rapid out-of-box setup.

Panel Illustration

Specifications

Ports
 32x 400G QSFP-DD
2x 10G SFP+
Switch Chip
 Teralynx 7 IVM77700
CPU
 Broadwell DE D-1508
Number of VLANs
 4,094
Switching Capacity
 12.8 Tbps
MAC Address Entries
 44,000
Forwarding Rate
 7,650 Mpps
Jumbo Frame
 9,216 bytes
SDRAM
 DDR4 16 GB
(Compatible with 64GB)
ARP Entries
 36,000
SSD Memory
 128 GB
IPv4/IPv6 Routes
 IPv4: 96,000 Host + 72,000 Prefix
IPv6: 47,000 Host + 36,000 Prefix
Packet Buffer
 70 MB
Latency
 ~400ns
Hot-swappable AC Power Supplies
 2 (1+1 Redundancy)
Max. Power Consumption
 <970W
Hot-swappable Fans
 6 (5+1 Redundancy)
MTBF
 >100,000 Hours
Dimensions (HxWxD)
 44x440x515mm
Rack Units
 1 RU
Weight
 12KG
Thermal Airflow
 Front-to-Rear
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