Contact Us

Born for AI Innovation

CS84-128Q1A

400G Ultra High-Bandwidth Switch

Overview

The CS84-128Q1A is a purpose-built 400GbE Ethernet switch, optimized for spine/leaf deployment in hyperscale datacenter networks.

Housed in a 4RU chassis, this high-density platform provides 128 × 400GbE QSFP112 ports (supporting 400G/200G/100G flexibility) and achieves up to 102.4 Tbps non-blocking switching capacity with full L2/L3 functionality.

Pre-installed with ONIE, the CS84-128Q1A supports open-source SONIC and multiple commercial NOS options for diverse datacenter environments.

Application

Artificial Intelligence, Machine Learning, High Performance Computing

Enquire Now
Download Specification

Product Features

Compact Design

  • 128 × QSFP112 400GbE ports supported
  • Up to 102.4 Tbps full-duplex switching capacity
  • Packet forwarding rate 21000 Mpps
  • Latency of 600 nanosecond
  • High power efficiency

High Reliability

  • Redundant design for power supply and fan
  • Software real-time monitoring of system status

OS Compatibility

  • Pre-loaded with Open Network Install Environment (ONIE), supporting open-source SONIC and multiple commercial NOS

Technical Specifications

Hardware Specifications

Service Port128x 400G QSFP112 (4x112G PAM4)
Service port indicationQSFP112: 1 LED/Port
Switching ASICBroadcom BCM78900 (Tomahawk5)
Switching Capacity102.4Tbps full-duplex
Packet forwarding rate21000 Mpps
Management Port1x 10/100/1000Base-T MGMT
1x USB 2.0 Type A
1x RJ45 Console
3x Status LED (Yellow-Green Bi-Color)
CPUCPU: Intel Ice lake-D 8C16T (D-1734NT)
2x SODIMM DDR4 16GB (up to 32GB), w/ECC
240GB M.2 SSD
BMCAspeed AST2520
Power2+2 redundancy, 1600W CRPS PSU
AC: 90~264VAC, HVDC: 180V~300VDC
FanN+1 redundancy, 5 fan modules
Airflow: F2B
Typical Power Consumption2200W
Operating Temperature0°C to 40°C, 5% to 90% RH
Size440mm x 800mm x 175mm
Weight~ 45kg

Software Specifications

System and Platform Infrastructure Features
  • Dynamic Port Breakout
  • DOM Information Display
  • System Locator LED Support (Beacon)
  • CMIS 4.0 Optics Support
  • CoPP (Control Plane Policing)
  • Transceiver Parameter Tuning
  • Third-Party Container Management
  • PDDF and PDK Framework
  • Maintenance Mode
    • LACP Graceful Shut

    • BGP Graceful Shut
    • OSPFv2 Maximum Metrics
  • Multi-Instance Redis DB
  • Zero Touch Provisioning (ZTP)
  • ZTP Provisioning using a USB Drive
  • Auto Negotiation and Link Training
  • Forwarding Plane Drop Counters
  • Time Zone Command Support
  • Broadcom Debug Tool
  • Interface Beacon LED
  • Support Option to Bind the Third-Party Container to the Management VRF
  • Limiting CPU/Memory/Disk Usage for Third Party Containers
  • Option to Send Audit Log Messages to Syslog Server
  • Multi-Site Data Center Interconnect(DCI)
  • Warm Reboot, Fast Reboot
Layer 2 Features
  • VLAN
  • Interface Hold-Down
  • Static LAG
  • LACP Graceful Shutdown
  • LACP Fast Rate and LACP Fallback LLDP
  • UDLD
  • PVST and RPVST+
  • STP, MSTP
  • DHCP snooping
  • Link Tracking
Layer 3 Features
  • IPv4,IPv6
  • IGMP
  • IPV6 Routing
  • Virtual Routing and Forwarding
  • Border Gateway Protocol
  • Next Hop Group (NHG) Support
  • IPv4 ARP
  • OSFv2
  • Route-Maps
  • Static Routes
  • Policy-Based Routing
  • Virtual Router Redundancy Protocol
  • Network Address Translation
  • ECMP load Sharing
  • IP Helper
  • RPVST, PVST, and MSTP over MC-LAG
ACL and Flow-Based Services
  • PBR Enhancements for Service Chaining
  • ACL-based CoPP
  • ACL DSCP Map/Remarking
  • ACL Rate Limiting
  • Control Plane ACL
  • Policy-based Routing (IPv4 and IPv6)
  • ACL-based Packet Replication
  • ACL Consistency Checker
Security Features
  • RADIUS and TACACS
  • RADIUS/TACACS Password Obfuscation
  • NTP Server and NTP Authentication
  • NTP Prefer Option
  • LDAP Integration
  • AAA Authorization support with TACACS+
Manageability Features
  • Industry Standard CLI (IS-CLI)
  • REST and gNMI Interfaces via OpenConfig YANG (OC-YANG)
  • Role-Based Access Control (RBAC)
  • RBAC and HAMd Enhancements
  • SNMP Configuration Traps and OIDs
  • gNMI Subscription Support for Limited YANG Paths (OnChange, Interval, Once, Poll, Target defined)

  • Bulking support in both REST(YANG patch) and gNMI
  • Query parameter for REST and filtering support for gNMI
  • Scalar encoding support for gNMI
  • Support to Read Service Tag via SNMP
  • SNMP Trap Enablement on Interface Instead of Global
Debuggability/ Serviceability features
  • In-memory Debug Logging
  • Audit Logging and Syslogs
  • Command to Return Interfaces to the Default Configuration
  • Port Mirroring on Port Channel and VLAN
QoS
  • Flow-Based QoS
  • Scheduler Policy
  • Port Shaping
  • Qos Maps
  • Control Plane Policing
  • Priority Flow Control
  • Storm Control
  • Buffer Management
Telemetry
  • sFlow
  • GRPC
  • Inband Flow Analytics
  • Packet Drop Monitoring

 

Download Specification

Get In Touch

Please fill in the form below and we will get back in a flash.

  • CREOX
  • 2026
  • SINGAPORE

Thanks for Stopping By

We’ re thrilled to have you at our booth today.
Explore what we have to offer – and let’s talk!

View Our Product Catalogues

Email Me the Catalogue

Find Us at Booth : HA -A30