What are the port specifications of the QFX5220-32CD-AFI?

The QFX5220-32CD-AFI features 32 x 400GbE QSFP-DD ports. It is designed for high-density leaf-spine and data center fabric deployments. The QFX series runs Junos OS, providing a consistent and reliable network operating system with advanced automation and programmability features.

What is the switching performance of the QFX5220-32CD-AFI?

The QFX5220-32CD-AFI is built for line-rate, low-latency switching across all ports. It provides wire-speed forwarding with support for deep buffering and advanced QoS policies. The QFX platform is optimized for east-west data center traffic patterns common in modern cloud and virtualized environments.

What is the airflow direction on the QFX5220-32CD-AFI?

The QFX5220-32CD-AFI uses back-to-front (AFI, Airflow In) cooling, drawing air from the rear of the switch and exhausting it through the front. This configuration is designed for facilities where cool air is delivered from the back of the rack.

What software features does the QFX5220-32CD-AFI support?

The QFX5220-32CD-AFI runs Junos OS, providing a mature and stable network operating system with extensive protocol support. Junos also offers programmable interfaces including NETCONF, gRPC, and OpenConfig for modern network automation and zero-touch provisioning.

Is the QFX5220-32CD-AFI available refurbished or pre-owned from BrightStar Systems?

Yes, BrightStar Systems offers the QFX5220-32CD-AFI as a certified refurbished switch. Every unit undergoes thorough testing, including full hardware diagnostics, firmware validation, and burn-in testing, before being certified for deployment. BrightStar Systems provides a warranty on all refurbished Juniper equipment, along with technical support and competitive pricing compared to buying new.

Professionally
Tested & Validated

See our 9 step refurbishment process

1 Year In-House
Product Warranty

BrightStar Systems' commitment to quality

Juniper QFX5220-32CD-AFI | 32-Port QSFP-DD 400G Switch

QFX5220-32CD-AFI

Condition: Seller Refurbished

Seller Warranty

90 Day Resell / 1 Year User

Express Delivery

Worldwide Shipping

Sales & Support

Mon-Fri / 8am – 5 pm PST

What happens next?

A knowledgeable, US-based, Network Hardware Specialist, with 15+ years experience, will review your request.
Based on the exact SKU, we will verify airflow and other details to calculate a quote.
A BrightStar Systems' specialist will personally reach out within 24 hours.

Guaranteed safe & secure checkout

Payment Methods

Free ground shipping to all 50 states

DESCRIPTION

SPECIFICATIONS

INCLUDED

WARRANTY

SHIPPING

FAQS

DESCRIPTION

Juniper QFX5220-32CD-AFI Switch (Refurbished)

The Juniper QFX5220-32CD-AFI is a high-performance, fixed-configuration 400GbE data center switch engineered for next-generation spine-and-leaf fabrics, AI/ML clusters, and hyperscale environments that demand extreme east-west bandwidth. With 32 × 400GbE QSFP-DD ports and an airflow-in (AFI) cooling design, this model is optimized for back-to-front airflow data centers operating at scale.

BrightStar Systems supplies fully tested refurbished QFX5220-32CD-AFI switches, each backed by our 1-Year In-House Warranty. All systems are professionally validated to ensure reliable operation in production environments.

Juniper QFX5220-32CD-AFI Overview

The QFX5220-32CD-AFI delivers high-density 400GbE connectivity in a compact 1RU form factor, making it an excellent fit for spine roles in modern EVPN-VXLAN and IP fabric architectures. Running Junos OS, the platform provides consistent operational behavior, advanced telemetry, and long-term software support for large-scale data center deployments.

This model is commonly deployed by organizations upgrading from 100GbE-class fabrics (including many QFX51xx/QFX52xx deployments) to 400GbE spine capacity, enabling higher-radix fabrics, improved oversubscription control, and simplified scalability for demanding workloads.

For a platform-level overview, see the Juniper QFX5220 Series.

Key Features & Capabilities

32 × 400GbE QSFP-DD ports for high-density 400G switching
Airflow In (AFI) cooling for back-to-front airflow designs
1RU fixed-configuration form factor
Support for EVPN-VXLAN and IP fabric architectures
Low-latency, high-throughput forwarding performance for spine fabrics
Full Junos OS feature set with automation and telemetry
Breakout flexibility for phased migrations (model and deployment dependent)
Designed for 400GbE spine and high-capacity fabric roles

Technical Specifications

Model	QFX5220-32CD-AFI
Ports	32 × 400GbE QSFP-DD
Switching Capacity	25.6 Tbps
Forwarding Rate	~8 Bpps
Form Factor	1RU
Airflow	Airflow In (AFI)
Operating System	Junos OS

Common Deployment Use Cases

400GbE spine switch in scalable data center fabrics
AI/ML cluster backbone for high-bandwidth east-west traffic
High-density fabric core for cloud and service provider environments
400G migration projects from 100GbE spine/aggregation designs

Similar Juniper QFX5220 Models

Juniper QFX5220-32CD-AFO
– AC-powered variant with airflow-out cooling for front-to-back rack layouts.
Juniper QFX5220-32CD-D-AFI
– DC-powered model with airflow-in cooling for carrier and service provider use.
Juniper QFX5220-32CD-D-AFO
– DC-powered model with airflow-out cooling for front-to-back environments.
Juniper QFX5220-128C-AFO
– Ultra-high-density 400GbE switch for large-scale spine fabrics.

Additional Resources

The following resources provide deeper context for evaluating the QFX5220-32CD-AFI within a broader Juniper switching strategy:

In-Depth Look at Juniper QFX Series Switches
– A technical overview of the QFX portfolio, including architecture, deployment models, and feature sets.
Juniper QFX vs EX Series Switches
– A practical comparison explaining when QFX platforms are preferred over EX Series switches.

Buying or Selling Juniper QFX Hardware

BrightStar Systems specializes in used and refurbished Juniper networking equipment for enterprise and data center environments. We support both expansion projects and hardware lifecycle transitions with tested, production-ready systems.

Warranty & Testing

All QFX5220-32CD-AFI switches are tested in-house and include a 1-Year BrightStar Systems Warranty. Hardware validation covers system health, port functionality, power supplies, and cooling components prior to shipment.