Juniper QFX5220-32CD 32-Port 400GbE AI Data Centre Switch

The Juniper QFX5220-32CD provides high-density spine-and-leaf switching for data centre fabrics that need to scale east-west traffic with confidence. Its 400GbE-ready architecture and Junos OS Evolved help keep operations familiar while improving throughput for demanding workloads.

Juniper QFX5220-32CD 32-Port 400GbE AI Data Centre Switch

QFX5220-32CD Key Platform Specifications

  • Primary Use Case: Spine
  • Access Ports: 32
  • Port Configuration: 32×QSFP-DD
  • Maximum Port Speed: 400G
  • Switching Capacity (Gbps): 25600
  • Routing Capability: Dynamic
Starting from: £11205 Ex. VAT
SKU QFX5220-32CD Categories , , , Brand:
View all models in this series: Juniper QFX Series

Our Pricing Options | Shipping & Delivery Information | Customer FAQ

QFX5220-32CD Overview

As east-west traffic grows across dense compute and storage fabrics, infrastructure teams need switching that preserves predictable latency while keeping leaf-spine operations simple.

400GbE Switching for High-Density Fabrics

The Juniper QFX5220-32CD is a spine-and-leaf switch for production environments that need 400GbE capacity at the fabric core. Its 32×400GbE port configuration supports aggregation points where GPU clusters, storage systems and application racks converge.

Built to Fit Mixed-Speed Environments

With support for 10GbE, 25GbE, 40GbE, 50GbE, 100GbE, 200GbE and 400GbE, it can sit alongside existing infrastructure without forcing a disruptive refresh. Running Junos OS Evolved, it fits operational models where network consistency and familiar administration matter.

Operational Headroom Without Reworking the Fabric

That makes it a practical step for organisations consolidating traffic, expanding fabric density, or preparing for heavier AI and data movement workloads. It helps keep oversubscription under control and supports a cleaner path to higher-throughput switching as demand rises.

If you are planning a fabric refresh around the Juniper QFX5220-32CD, our team can help you map it to the workload and network tier it needs to serve.

QFX5220-32CD Key Features​

Juniper QFX5220-32CD is a spine-and-leaf switching platform for modern data center fabrics, designed to support high-capacity aggregation and operational consistency in large-scale network environments.

Fabric Capacity

High-Density Uplink Design
The platform provides 32x400GbE connectivity to support spine-and-leaf switching at high throughput in data center fabric deployments.

Data Center Fabric Role
Its switching architecture is suited to leaf and spine layers where predictable east-west traffic handling is required.

Platform-Based Scaling
The design supports fabric expansion through a structured switching model that aligns with high-density data center growth.

Junos OS Evolved
The operating environment is built on Junos OS Evolved to provide a consistent platform foundation for network operations.

Operational Control

OS-Driven Management Model
Junos OS Evolved provides the software control plane for configuring and operating the switch within the wider fabric.

Fabric Consistency
The platform is intended to support consistent switching behaviour across spine-and-leaf deployments.

Deployment Flexibility
The switch can be used in data center environments where a high-capacity fabric endpoint is required for aggregation or interconnect.

Speak to a Juniper Networking Specialist

If you are planning a high-density data center fabric or need help aligning switching capacity with spine-and-leaf design, our Juniper experts can advise on deployment fit and architecture.

QFX5220-32CD Technical Specifications

Full specifications for this model are listed below.

Additional information

Product Family

Juniper QFX
Product Series

QFX5200
Deployment

Data Centre
Target Organisation Size

Service Provider
Primary Use Case

Spine
Product Tier

Flagship
Network Architecture

Layer 3
Access Ports

32
Access Port Architecture

QSFP-DD
Uplink Ports

None
Uplink Architecture

None
Total Ports

32
Maximum Port Speed

400G
Port Configuration

32×QSFP-DD
PoE

No
Stacking

Supported
Operating System

Power Redundancy

Hot-swappable PSUs
Maximum VLANs

4096
Routing Capability

Dynamic
Switching Capacity (Gbps)

Evaluating whether this is the right fit for your environment?

Our specialists are here to help assess compatibility, compare suitable alternatives, or talk through your configuration needs before committing to a solution.

Contact us today for a no-obligation chat.

QFX5220-32CD Deployment Scenarios

Juniper QFX5220-32CD is a 400GbE data-centre switch for dense leaf and spine fabrics that need high east-west bandwidth, predictable latency and straightforward operations. It fits teams moving beyond 100GbE aggregation without stepping straight to 800GbE scale.

Large Standards-Based Data Centre Fabrics

In very large data centres, this switch sits in the spine tier where multiple leaf blocks need consistent 400GbE capacity. It helps keep GPU, storage and application traffic moving cleanly as fabric density increases.

AI And Private Cloud Lab Networks

Platform and AI teams use it to link compute, storage and test clusters across lab-to-production fabrics. That matters when large datasets and images must shift quickly between racks without adding operational complexity for small networking teams.

Finance Analytics And Market-Data Pods

For trading, risk and analytics environments, the QFX5220-32CD supports low-latency server fabrics with tighter oversubscription control. It is a practical choice when bursts of calculation and storage access can congest older 100GbE designs.

Media Rendering And Shared Storage Infrastructure

Rendering farms, post-production racks and shared storage networks generate sustained large-file movement. This switch provides the backbone capacity needed to reduce wait times between ingest, render and archive stages across busy production floors.

Telecom Cloud And Edge Service Fabrics

Service providers can place it in provider data centres or metro cloud fabrics where NFV, peering and edge aggregation need 400GbE spine capacity. It suits sites that have outgrown 100GbE but do not yet require 800GbE class scale.

Planning a Juniper QFX5220-32CD Deployment?

We can help design and deploy Juniper QFX5220-32CD fabrics for data centres, AI labs, finance, media and telecom environments, with guidance on scaling, oversubscription, resilience and day-to-day operational fit.

Spread the cost of your next IT upgrade or refresh!

Many of our vendor partners offer their own flexible finance programs, available for orders over a certain threshold. 

 

As part of our free consultation and advisory service, we can:

  • Advise you on whether this vendor has relevant financing options available
  • Assess the eligibility of your business
  • Handle your application with the manufacturer

Alternatively, we also work independently with third-party organisations to offer the best possible flexible leasing solutions.

 

Our team is here to help your businesses avoid upfront costs and keep your next IT project on budget. Submit an enquiry today to explore your options.

Contact our experts

Trade-in your old IT hardware to save money on your purchase!

Instead of letting unused hardware depreciate or go to waste, our simple IT Asset Trade-In Service helps businesses to regain capital or receive credit towards future purchases.

  • Recover value from surplus or end-of-life IT equipment
  • Securely destroy confidential data
  • Maximise your return on investment
  • Meet sustainability and ESG goals

Our team will assesses the market value of your equipment, managing the entire process from secure collection through to resale or responsible recycling.

To get started, simply submit an enquiry and we’ll respond within 24 working hours.

Submit an enquiry

As a certified partner to industry-leading vendors, we provide access to promotions that reduce upfront spend and accelerate upgrade strategies.

  • Shorten procurement cycles and unblock IT projects stalled by budget constraints.
  • Limited-time discounts on enterprise IT hardware and software.
  • Combine select promotions with financing or refurbished hardware for even greater savings.

When you work with us, we can bundle and stack multiple offers, navigate application processes, and secure pricing that often isn’t accessible without an official vendor partner.

 

Visit our promotions hub to explore current offers and discuss your eligibility.

Visit our promotions hub

Tailored recommendations for your infrastructure

Below you’ll find alternative models, suitable software and services that pair with this solution – helping you to avoid compatibility issues, reduce support overhead and deploy with confidence.

Not sure where to start?

Not all deployments fit standard configurations. If you’re weighing up options or want a second opinion on your setup, our team is here to help with honest, straightforward advice backed by decades of vendor knowledge.

Speak to a specialist

Looking for a different model?

You may also like…

Not sure which model is right for your environment? Our specialists can help you select the right platform for your infrastructure requirements.

Need to define the right IT solution?

Alternatively, If you’re unsure whether this product fully meets your project’s needs, we’re here to help.
Speak to a Specialist
A group discussing IT solutions
Can’t find what you’re looking for? We have more products available - just reach out to us directly! Found a better price elsewhere? Let us know - we’re happy to discuss price matching.