AIS400-256

Scalable 256G switch with advanced congestion control for large deployments.

25.6T

Throughput

32 Ports

QSFP-DD400

AIS400-256

Overview

The AIS400-256 is a scalable switch with advanced congestion control for large-scale deployments.

Data Center Switch

A scalable switch for large data centers, supporting 1.6Tbps to 25.6Tbps and 1K to 10K ports with up to 400G connectivity. Optimized for scalability and efficiency.

AI/ML Clusters

Supports high-throughput RDMA workloads with advanced congestion control, optimizing Job Completion Time (JCT) for large AI/ML deployments.

High-Performance Computing

High-capacity ports enable seamless switching for compute and storage networks in large HPC environments.

Cloud DCI

Supports 400G and 400G QSFP-DD configurations for high-speed Data Center Interconnect (DCI) in large-scale deployments.

Key Capabilities

QSFP-DD400 ports support 400G PAM4, with breakout to 2x400G, 4x200G, etc.

Supports multiple PAM4 and NRZ configurations across port types.

32-port 1RU high-density design.

Low-latency switching ideal for trading & real-time apps.

Specifications

Switch Ports

32 x QSFP-DD400 QSFP400

Switch Silicon

BCM78900 Tomahawk 5

TPM

TPM 2.0 SPI

Processor

Intel® Xeon® 6-Core 2.2 GHz

Rack

1RU form factor

Timing and Sync

Optional PPS In/Out, 1PPS Port, 10MHz Port, ToD Port, SyncE, IEEE 1588v2 PTP

BMC

AST2520 with OpenBMC secured by AST1050 Root of Trust

Fans

7 hot-swappable fan modules with 6+1 redundant fan

SPI Flash

SAME 2 x 2

Storage

-40°C to 70°C

Memory

3200B DDR4 SO-DIMM with ECC

Operating Temperature

0°C to 45°C (front to back)

Storage Temperature

-40°C to 70°C (back to front)

Software & Compatibility

Software

  • SONiC

Compatible Transceivers

  • 400G QSFP-DD LPO
  • 400G QSFP-DD SR8
  • 400G QSFP-DD PSM8
  • 400G QSFP-DD SR4
  • 400G QSFP-DD SR8

Compatible Cables

  • 400G QSFP-DD SR4

Downloads

AIS400-256 Product Datasheet
AIS400-256 User Manual
AIS400-256 Installation Guide

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