Juniper Networks QFX5220-32CD-AFO 32-Port 400GbE Data Center Switch (Front-to-Back Airflow)
Juniper QFX5220-32CD-AFO 32-Port 400GbE Data Center Switch
The Juniper QFX5220-32CD-AFO is a next-generation 400GbE high-performance data center switch designed for modern cloud, AI/ML clusters, hyperscale, and spine-leaf architectures. Equipped with 32 QSFP-DD ports, the switch offers industry-leading throughput, low latency, and exceptional scalability.
With front-to-back (AFO) airflow, redundant hot-swappable components, and support for advanced automation through Junos OS, the QFX5220-32CD-AFO is built for mission-critical data center operations. It delivers unmatched flexibility with support for 100GbE, 200GbE, and 400GbE speeds, making it ideal for distributed cloud environments, high-density compute fabrics, and bandwidth-intensive workloads.
📌 Technical Specifications for Juniper QFX5220-32CD-AFO
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| Specification | Details |
|---|---|
| Brand | Juniper Networks |
| Series | QFX5200 Series |
| Model | QFX5220-32CD-AFO |
| Form Factor | 1U rack-mountable |
| Port Configuration | 32 × QSFP-DD (400GbE) |
| Breakout Support | 4×100GbE per port (up to 128 ports), 2×200GbE |
| Switching Capacity | 12.8 Tbps |
| Forwarding Rate | Up to 9.52 Bpps |
| Airflow | Front-to-Back (AFO) |
| Latency | Ultra-low latency architecture |
| CPU | Multi-core embedded processor |
| Memory | 16GB DRAM (varies by revision) |
| Storage | 64GB SSD |
| Operating System | Junos OS |
| Layer Support | L2/L3, EVPN, VXLAN |
| Routing Protocols | BGP, OSPF, IS-IS, PIM, MPLS |
| Redundancy | Hot-swappable fans and PSUs |
| Telemetry | Streaming telemetry, JTI |
| Power Supply | Dual AC PSUs |
| Typical Power Consumption | ~550W (varies by optics) |
| Dimensions (H × W × D) | ~1.72 × 17.4 × 21.5 in |
| Weight | ~20 lbs (9–10 kg) |
| Operating Temperature | 32°F to 104°F (0°C to 40°C) |
| Warranty | Juniper Limited Lifetime Warranty |
📌 Performance & Use Cases
Ideal For:
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Large-scale leaf-spine architectures
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High-density AI/ML cluster interconnects
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Hyperscale and cloud service providers
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400GbE backbone networks
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Enterprise data center modernization
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Ultra-low latency trading clusters
Benefits:
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Future-proof 400G scalability
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Fully redundant design ensures high availability
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Automated provisioning and monitoring
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Flexible breakout options
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Energy-efficient switching platform
📌 FAQs
1. What port speeds does the Juniper QFX5220-32CD-AFO support?
It supports 400G, 200G, and 100G, with breakout options of 4×100G per port.
2. What airflow direction does the AFO model use?
AFO stands for Airflow Front-to-Back, ideal for modern data center cooling layouts.
3. Does the switch support EVPN-VXLAN?
Yes, it fully supports EVPN-VXLAN, making it suitable for scalable Layer-3 fabrics.
4. Is this switch suitable for AI/ML workloads?
Absolutely—its 400GbE high-bandwidth, low-latency design supports GPU/AI cluster networking.
5. Does the QFX5220-32CD-AFO include redundant components?
Yes, it includes redundant hot-swappable fans and PSUs.
6. What OS does it run?
It runs Junos OS, known for stability, automation, and security.
